Stabilize the `alloc` crate. #59675

SimonSapin · 2019-04-03T18:17:01Z

This implements RFC 2480:

rust-highfive · 2019-04-03T18:17:18Z

(rust_highfive has picked a reviewer for you, use r? to override)

SimonSapin · 2019-04-03T18:21:30Z

Note that the alloc::prelude module is not being stabilized in this PR. It was moved to a dedicated feature gate alloc_prelude and tracking issue #58935.

rust-highfive · 2019-04-03T19:34:02Z

The job x86_64-gnu-llvm-6.0 of your PR failed on Travis (raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log.

travis_time:end:04f9a054:start=1554315498485361337,finish=1554315500618617468,duration=2133256131
$ git checkout -qf FETCH_HEAD
travis_fold:end:git.checkout

Encrypted environment variables have been removed for security reasons.
See https://docs.travis-ci.com/user/pull-requests/#pull-requests-and-security-restrictions
$ export SCCACHE_BUCKET=rust-lang-ci-sccache2
$ export SCCACHE_REGION=us-west-1
$ export GCP_CACHE_BUCKET=rust-lang-ci-cache
Setting environment variables from .travis.yml
---
travis_time:start:test_ui
Check compiletest suite=ui mode=ui (x86_64-unknown-linux-gnu -> x86_64-unknown-linux-gnu)
[01:11:59] 
[01:11:59] running 5522 tests
[01:12:02] ..........................F......................................................................... 100/5522
[01:12:08] .................................................................................................... 300/5522
[01:12:11] .................................................................................................... 400/5522
[01:12:15] .................................................................................................... 500/5522
[01:12:18] ..........................................i......................................................... 600/5522
[01:12:18] ..........................................i......................................................... 600/5522
[01:12:22] .................................................................................................... 700/5522
[01:12:27] .................................................................................................... 800/5522
[01:12:31] .................................................................................................... 900/5522
[01:12:36] .i...............i.................................................................................. 1000/5522
[01:12:39] ..................................iiiii............................................................. 1100/5522
[01:12:43] .................................................................................................... 1200/5522
[01:12:45] .....................................................F.F............................................ 1300/5522
[01:12:51] .................................................................................................... 1500/5522
[01:12:54] .................................................................................................... 1600/5522
[01:12:57] ..................................................i................................................. 1700/5522
[01:13:00] .................................................................................................... 1800/5522
---
[01:14:32] .................................................................................................... 4300/5522
[01:14:41] .................................................................................................... 4400/5522
[01:14:45] .................................................................................................... 4500/5522
[01:14:48] .................................................................................................... 4600/5522
[01:14:52] ................F................................................................................... 4700/5522
[01:14:58] ........................................................F........................................... 4800/5522
[01:15:05] .................................................................................................... 5000/5522
[01:15:10] .................................................................................................... 5100/5522
[01:15:13] .................................................................................................... 5200/5522
[01:15:16] .................................................................................................... 5300/5522
---
[01:15:23] 1 error: `global_allocator` cannot be used in submodules
[01:15:23] -   --> $DIR/allocator-submodule.rs:27:5
[01:15:23] +   --> $DIR/allocator-submodule.rs:25:5
[01:15:23] 3    |
[01:15:23] 4 LL |     static MY_HEAP: MyAlloc = MyAlloc;
[01:15:23] 
[01:15:23] 
[01:15:23] The actual stderr differed from the expected stderr.
[01:15:23] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/allocator-submodule/allocator-submodule.stderr
[01:15:23] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/allocator-submodule/allocator-submodule.stderr
[01:15:23] To update references, rerun the tests and pass the `--bless` flag
[01:15:23] To only update this specific test, also pass `--test-args allocator-submodule.rs`
[01:15:23] error: 1 errors occurred comparing output.
[01:15:23] status: exit code: 1
[01:15:23] status: exit code: 1
[01:15:23] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/allocator-submodule.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/allocator-submodule/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/allocator-submodule/auxiliary" "-A" "unused"
[01:15:23] ------------------------------------------
[01:15:23] 
[01:15:23] ------------------------------------------
[01:15:23] stderr:
[01:15:23] stderr:
[01:15:23] ------------------------------------------
[01:15:23] {"message":"`global_allocator` cannot be used in submodules","code":null,"level":"error","spans":[{"file_name":"/checkout/src/test/ui/allocator-submodule.rs","byte_start":461,"byte_end":495,"line_start":25,"line_end":25,"column_start":5,"column_end":39,"is_primary":true,"text":[{"text":"    static MY_HEAP: MyAlloc = MyAlloc; //~ ERROR global_allocator","highlight_start":5,"highlight_end":39}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[],"rendered":"error: `global_allocator` cannot be used in submodules\n  --> /checkout/src/test/ui/allocator-submodule.rs:25:5\n   |\nLL |     static MY_HEAP: MyAlloc = MyAlloc; //~ ERROR global_allocator\n   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n\n"}
[01:15:23] 
[01:15:23] ------------------------------------------
[01:15:23] 
[01:15:23] thread '[ui] ui/allocator-submodule.rs' panicked at 'explicit panic', src/tools/compiletest/src/runtest.rs:3422:9
---
[01:15:23] 1 error[E0254]: the name `alloc` is defined multiple times
[01:15:23] -   --> $DIR/E0254.rs:12:5
[01:15:23] +   --> $DIR/E0254.rs:11:5
[01:15:23] 3    |
[01:15:23] 4 LL | extern crate alloc;
[01:15:23] 5    | ------------------- previous import of the extern crate `alloc` here
[01:15:23] 
[01:15:23] The actual stderr differed from the expected stderr.
[01:15:23] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/error-codes/E0254/E0254.stderr
[01:15:23] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/error-codes/E0254/E0254.stderr
[01:15:23] To update references, rerun the tests and pass the `--bless` flag
[01:15:23] To only update this specific test, also pass `--test-args error-codes/E0254.rs`
[01:15:23] error: 1 errors occurred comparing output.
[01:15:23] status: exit code: 1
[01:15:23] status: exit code: 1
[01:15:23] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/error-codes/E0254.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/error-codes/E0254/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/error-codes/E0254/auxiliary" "-A" "unused"
[01:15:23] ------------------------------------------
[01:15:23] 
[01:15:23] ------------------------------------------
[01:15:23] stderr:
[01:15:23] stderr:
[01:15:23] ------------------------------------------
[01:15:23] {"message":"the name `alloc` is defined multiple times","code":{"code":"E0254","explanation":"\nAttempt was made to import an item whereas an extern crate with this name has\nalready been imported.\n\nErroneous code example:\n\n```compile_fail,E0254\nextern crate core;\n\nmod foo {\n    pub trait core {\n        fn do_something();\n    }\n}\n\nuse foo::core;  // error: an extern crate named `core` has already\n                //        been imported in this module\n\nfn main() {}\n```\n\nTo fix this issue, you have to rename at least one of the two imports.\nExample:\n\n```\nextern crate core as libcore; // ok!\n\nmod foo {\n    pub trait core {\n        fn do_something();\n    }\n}\n\nuse foo::core;\n\nfn main() {}\n```\n"},"level":"error","spans":[{"file_name":"/checkout/src/test/ui/error-codes/E0254.rs","byte_start":148,"byte_end":158,"line_start":11,"line_end":11,"column_start":5,"column_end":15,"is_primary":true,"text":[{"text":"use foo::alloc;","highlight_start":5,"highlight_end":15}],"label":"`alloc` reimported here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"/checkout/src/test/ui/error-codes/E0254.rs","byte_start":55,"byte_end":74,"line_start":3,"line_end":3,"column_start":1,"column_end":20,"is_primary":false,"text":[{"text":"extern crate alloc;","highlight_start":1,"highlight_end":20}],"label":"previous import of the extern crate `alloc` here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"`alloc` must be defined only once in the type namespace of this module","code":null,"level":"note","spans":[],"children":[],"rendered":null},{"message":"you can use `as` to change the binding name of the import","code":null,"level":"help","spans":[{"file_name":"/checkout/src/test/ui/error-codes/E0254.rs","byte_start":148,"byte_end":158,"line_start":11,"line_end":11,"column_start":5,"column_end":15,"is_primary":true,"text":[{"text":"use foo::alloc;","highlight_start":5,"highlight_end":15}],"label":null,"suggested_replacement":"foo::alloc as other_alloc","suggestion_applicability":"MaybeIncorrect","expansion":null}],"children":[],"rendered":null}],"rendered":"error[E0254]: the name `alloc` is defined multiple times\n  --> /checkout/src/test/ui/error-codes/E0254.rs:11:5\n   |\nLL | extern crate alloc;\n   | ------------------- previous import of the extern crate `alloc` here\n...\nLL | use foo::alloc;\n   |     ^^^^^^^^^^ `alloc` reimported here\n   |\n   = note: `alloc` must be defined only once in the type namespace of this module\nhelp: you can use `as` to change the binding name of the import\n   |\nLL | use foo::alloc as other_alloc;\n   |     ^^^^^^^^^^^^^^^^^^^^^^^^^\n\n"}
[01:15:23] {"message":"For more information about this error, try `rustc --explain E0254`.","code":null,"level":"","spans":[],"children":[],"rendered":"For more information about this error, try `rustc --explain E0254`.\n"}
[01:15:23] 
[01:15:23] ------------------------------------------
[01:15:23] 
---
[01:15:23] 1 error[E0260]: the name `alloc` is defined multiple times
[01:15:23] -   --> $DIR/E0260.rs:6:1
[01:15:23] +   --> $DIR/E0260.rs:5:1
[01:15:23] 3    |
[01:15:23] 4 LL | extern crate alloc;
[01:15:23] 5    | ------------------- previous import of the extern crate `alloc` here
[01:15:23] 
[01:15:23] The actual stderr differed from the expected stderr.
[01:15:23] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/error-codes/E0260/E0260.stderr
[01:15:23] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/error-codes/E0260/E0260.stderr
[01:15:23] To update references, rerun the tests and pass the `--bless` flag
[01:15:23] To only update this specific test, also pass `--test-args error-codes/E0260.rs`
[01:15:23] error: 1 errors occurred comparing output.
[01:15:23] status: exit code: 1
[01:15:23] status: exit code: 1
[01:15:23] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/error-codes/E0260.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/error-codes/E0260/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/error-codes/E0260/auxiliary" "-A" "unused"
[01:15:23] ------------------------------------------
[01:15:23] 
[01:15:23] ------------------------------------------
[01:15:23] stderr:
[01:15:23] stderr:
[01:15:23] ------------------------------------------
[01:15:23] {"message":"the name `alloc` is defined multiple times","code":{"code":"E0260","explanation":"\nThe name for an item declaration conflicts with an external crate's name.\n\nErroneous code example:\n\n```compile_fail,E0260\nextern crate core;\n\nstruct core;\n\nfn main() {}\n```\n\nThere are two possible solutions:\n\nSolution #1: Rename the item.\n\n```\nextern crate core;\n\nstruct xyz;\n```\n\nSolution #2: Import the crate with a different name.\n\n```\nextern crate core as xyz;\n\nstruct abc;\n```\n\nSee the Declaration Statements section of the reference for more information\nabout what constitutes an Item declaration and what does not:\n\nhttps://doc.rust-lang.org/reference.html#statements\n"},"level":"error","spans":[{"file_name":"/checkout/src/test/ui/error-codes/E0260.rs","byte_start":54,"byte_end":63,"line_start":5,"line_end":5,"column_start":1,"column_end":10,"is_primary":true,"text":[{"text":"mod alloc {","highlight_start":1,"highlight_end":10}],"label":"`alloc` redefined here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"/checkout/src/test/ui/error-codes/E0260.rs","byte_start":33,"byte_end":52,"line_start":3,"line_end":3,"column_start":1,"column_end":20,"is_primary":false,"text":[{"text":"extern crate alloc;","highlight_start":1,"highlight_end":20}],"label":"previous import of the extern crate `alloc` here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"`alloc` must be defined only once in the type namespace of this module","code":null,"level":"note","spans":[],"children":[],"rendered":null},{"message":"you can use `as` to change the binding name of the import","code":null,"level":"help","spans":[{"file_name":"/checkout/src/test/ui/error-codes/E0260.rs","byte_start":33,"byte_end":52,"line_start":3,"line_end":3,"column_start":1,"column_end":20,"is_primary":true,"text":[{"text":"extern crate alloc;","highlight_start":1,"highlight_end":20}],"label":null,"suggested_replacement":"extern crate alloc as other_alloc;","suggestion_applicability":"MaybeIncorrect","expansion":null}],"children":[],"rendered":null}],"rendered":"error[E0260]: the name `alloc` is defined multiple times\n  --> /checkout/src/test/ui/error-codes/E0260.rs:5:1\n   |\nLL | extern crate alloc;\n   | ------------------- previous import of the extern crate `alloc` here\nLL | \nLL | mod alloc {\n   | ^^^^^^^^^ `alloc` redefined here\n   |\n   = note: `alloc` must be defined only once in the type namespace of this module\nhelp: you can use `as` to change the binding name of the import\n   |\nLL | extern crate alloc as other_alloc;\n   |\n\n"}
[01:15:23] {"message":"For more information about this error, try `rustc --explain E0260`.","code":null,"level":"","spans":[],"children":[],"rendered":"For more information about this error, try `rustc --explain E0260`.\n"}
[01:15:23] 
[01:15:23] ------------------------------------------
[01:15:23] 
---
[01:15:23] 15    |
[01:15:23] 16 LL |             use alloc::HashMap;
[01:15:23] 17    |                 ^^^^^
[01:15:23] 
[01:15:23] 20    |                 help: a similar path exists: `a::alloc`
[01:15:23] 22 error[E0432]: unresolved import `alloc`
[01:15:23] -   --> $DIR/resolve_self_super_hint.rs:21:21
[01:15:23] +   --> $DIR/resolve_self_super_hint.rs:20:21
[01:15:23] 24    |
[01:15:23] 24    |
[01:15:23] 25 LL |                 use alloc::HashMap;
[01:15:23] 26    |                     ^^^^^
[01:15:23] 
[01:15:23] 
[01:15:23] The actual stderr differed from the expected stderr.
[01:15:23] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/resolve_self_super_hint/resolve_self_super_hint.stderr
[01:15:23] To update references, rerun the tests and pass the `--bless` flag
[01:15:23] To only update this specific test, also pass `--test-args resolve_self_super_hint.rs`
[01:15:23] error: 1 errors occurred comparing output.
[01:15:23] status: exit code: 1
[01:15:23] status: exit code: 1
[01:15:23] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/resolve_self_super_hint.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/resolve_self_super_hint/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/resolve_self_super_hint/auxiliary" "-A" "unused"
[01:15:23] ------------------------------------------
[01:15:23] 
[01:15:23] ------------------------------------------
[01:15:23] stderr:
[01:15:23] stderr:
[01:15:23] ------------------------------------------
[01:15:23] {"message":"unresolved import `alloc`","code":{"code":"E0432","explanation":"\nAn import was unresolved.\n\nErroneous code example:\n\n```compile_fail,E0432\nuse something::Foo; // error: unresolved import `something::Foo`.\n```\n\nPaths in `use` statements are relative to the crate root. To import items\nrelative to the current and parent modules, use the `self::` and `super::`\nprefixes, respectively. Also verify that you didn't misspell the import\nname and that the import exists in the module from where you tried to\nimport it. Example:\n\n```\nuse self::something::Foo; // ok!\n\nmod something {\n    pub struct Foo;\n}\n# fn main() {}\n```\n\nOr, if you tried to use a module from an external crate, you may have missed\nthe `extern crate` declaration (which is usually placed in the crate root):\n\n```\nextern crate core; // Required to use the `core` crate\n\nuse core::any;\n# fn main() {}\n```\n"},"level":"error","spans":[{"file_name":"/checkout/src/test/ui/resolve_self_super_hint.rs","byte_start":73,"byte_end":78,"line_start":5,"line_end":5,"column_start":9,"column_end":14,"is_primary":true,"text":[{"text":"    use alloc::HashMap;","highlight_start":9,"highlight_end":14}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"a similar path exists","code":null,"level":"help","spans":[{"file_name":"/checkout/src/test/ui/resolve_self_super_hint.rs","byte_start":73,"byte_end":78,"line_start":5,"line_end":5,"column_start":9,"column_end":14,"is_primary":true,"text":[{"text":"    use alloc::HashMap;","highlight_start":9,"highlight_end":14}],"label":null,"suggested_replacement":"self::alloc","suggestion_applicability":"MaybeIncorrect","expansion":null}],"children":[],"rendered":null}],"rendered":"error[E0432]: unresolved import `alloc`\n  --> /checkout/src/test/ui/resolve_self_super_hint.rs:5:9\n   |\nLL |     use alloc::HashMap;\n   |         ^^^^^ help: a similar path exists: `self::alloc`\n\n"}
[01:15:23] {"message":"unresolved import `alloc`","code":{"code":"E0432","explanation":"\nAn import was unresolved.\n\nErroneous code example:\n\n```compile_fail,E0432\nuse something::Foo; // error: unresolved import `something::Foo`.\n```\n\nPaths in `use` statements are relative to the crate root. To import items\nrelative to the current and parent modules, use the `self::` and `super::`\nprefixes, respectively. Also verify that you didn't misspell the import\nname and that the import exists in the module from where you tried to\nimport it. Example:\n\n```\nuse self::something::Foo; // ok!\n\nmod something {\n    pub struct Foo;\n}\n# fn main() {}\n```\n\nOr, if you tried to use a module from an external crate, you may have missed\nthe `extern crate` declaration (which is usually placed in the crate root):\n\n```\nextern crate core; // Required to use the `core` crate\n\nuse core::any;\n# fn main() {}\n```\n"},"level":"error","spans":[{"file_name":"/checkout/src/test/ui/resolve_self_super_hint.rs","byte_start":230,"byte_end":235,"line_start":10,"line_end":10,"column_start":13,"column_end":18,"is_primary":true,"text":[{"text":"        use alloc::HashMap;","highlight_start":13,"highlight_end":18}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"a similar path exists","code":null,"level":"help","spans":[{"file_name":"/checkout/src/test/ui/resolve_self_super_hint.rs","byte_start":230,"byte_end":235,"line_start":10,"line_end":10,"column_start":13,"column_end":18,"is_primary":true,"text":[{"text":"        use alloc::HashMap;","highlight_start":13,"highlight_end":18}],"label":null,"suggested_replacement":"super::alloc","suggestion_applicability":"MaybeIncorrect","expansion":null}],"children":[],"rendered":null}],"rendered":"error[E0432]: unresolved import `alloc`\n  --> /checkout/src/test/ui/resolve_self_super_hint.rs:10:13\n   |\nLL |         use alloc::HashMap;\n   |             ^^^^^ help: a similar path exists: `super::alloc`\n\n"}
[01:15:23] {"message":"unresolved import `alloc`","code":{"code":"E0432","explanation":"\nAn import was unresolved.\n\nErroneous code example:\n\n```compile_fail,E0432\nuse something::Foo; // error: unresolved import `something::Foo`.\n```\n\nPaths in `use` statements are relative to the crate root. To import items\nrelative to the current and parent modules, use the `self::` and `super::`\nprefixes, respectively. Also verify that you didn't misspell the import\nname and that the import exists in the module from where you tried to\nimport it. Example:\n\n```\nuse self::something::Foo; // ok!\n\nmod something {\n    pub struct Foo;\n}\n# fn main() {}\n```\n\nOr, if you tried to use a module from an external crate, you may have missed\nthe `extern crate` declaration (which is usually placed in the crate root):\n\n```\nextern crate core; // Required to use the `core` crate\n\nuse core::any;\n# fn main() {}\n```\n"},"level":"error","spans":[{"file_name":"/checkout/src/test/ui/resolve_self_super_hint.rs","byte_start":408,"byte_end":413,"line_start":15,"line_end":15,"column_start":17,"column_end":22,"is_primary":true,"text":[{"text":"            use alloc::HashMap;","highlight_start":17,"highlight_end":22}],"label":"unresolved import","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"a similar path exists","code":null,"level":"help","spans":[{"file_name":"/checkout/src/test/ui/resolve_self_super_hint.rs","byte_start":408,"byte_end":413,"line_start":15,"line_end":15,"column_start":17,"column_end":22,"is_primary":true,"text":[{"text":"            use alloc::HashMap;","highlight_start":17,"highlight_end":22}],"label":null,"suggested_replacement":"a::alloc","suggestion_applicability":"MaybeIncorrect","expansion":null}],"children":[],"rendered":null}],"rendered":"error[E0432]: unresolved import `alloc`\n  --> /checkout/src/test/ui/resolve_self_super_hint.rs:15:17\n   |\nLL |             use alloc::HashMap;\n   |                 ^^^^^\n   |                 |\n   |                 unresolved import\n   |                 help: a similar path exists: `a::alloc`\n\n"}
[01:15:23] {"message":"unresolved import `alloc`","code":{"code":"E0432","explanation":"\nAn import was unresolved.\n\nErroneous code example:\n\n```compile_fail,E0432\nuse something::Foo; // error: unresolved import `something::Foo`.\n```\n\nPaths in `use` statements are relative to the crate root. To import items\nrelative to the current and parent modules, use the `self::` and `super::`\nprefixes, respectively. Also verify that you didn't misspell the import\nname and that the import exists in the module from where you tried to\nimport it. Example:\n\n```\nuse self::something::Foo; // ok!\n\nmod something {\n    pub struct Foo;\n}\n# fn main() {}\n```\n\nOr, if you tried to use a module from an external crate, you may have missed\nthe `extern crate` declaration (which is usually placed in the crate root):\n\n```\nextern crate core; // Required to use the `core` crate\n\nuse core::any;\n# fn main() {}\n```\n"},"level":"error","spans":[{"file_name":"/checkout/src/test/ui/resolve_self_super_hint.rs","byte_start":602,"byte_end":607,"line_start":20,"line_end":20,"column_start":21,"column_end":26,"is_primary":true,"text":[{"text":"                use alloc::HashMap;","highlight_start":21,"highlight_end":26}],"label":"unresolved import","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"a similar path exists","code":null,"level":"help","spans":[{"file_name":"/checkout/src/test/ui/resolve_self_super_hint.rs","byte_start":602,"byte_end":607,"line_start":20,"line_end":20,"column_start":21,"column_end":26,"is_primary":true,"text":[{"text":"                use alloc::HashMap;","highlight_start":21,"highlight_end":26}],"label":null,"suggested_replacement":"a::alloc","suggestion_applicability":"MaybeIncorrect","expansion":null}],"children":[],"rendered":null}],"rendered":"error[E0432]: unresolved import `alloc`\n  --> /checkout/src/test/ui/resolve_self_super_hint.rs:20:21\n   |\nLL |                 use alloc::HashMap;\n   |                     ^^^^^\n   |                     |\n   |                     unresolved import\n   |                     help: a similar path exists: `a::alloc`\n\n"}
[01:15:23] {"message":"For more information about this error, try `rustc --explain E0432`.","code":null,"level":"","spans":[],"children":[],"rendered":"For more information about this error, try `rustc --explain E0432`.\n"}
[01:15:23] 
[01:15:23] ------------------------------------------
[01:15:23] 
---
[01:15:23] 7 note: lint level defined here
[01:15:23] -   --> $DIR/remove-extern-crate.rs:8:9
[01:15:23] +   --> $DIR/remove-extern-crate.rs:7:9
[01:15:23] 9    |
[01:15:23] 10 LL | #![warn(rust_2018_idioms)]
[01:15:23] 
[01:15:23] 
[01:15:23] 12    = note: #[warn(unused_extern_crates)] implied by #[warn(rust_2018_idioms)]
[01:15:23] 14 warning: `extern crate` is not idiomatic in the new edition
[01:15:23] -   --> $DIR/remove-extern-crate.rs:11:1
[01:15:23] +   --> $DIR/remove-extern-crate.rs:10:1
[01:15:23] 16    |
---
[01:15:23] 24    |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[01:15:23] 
[01:15:23] 
[01:15:23] The actual stderr differed from the expected stderr.
[01:15:23] Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rust-2018/remove-extern-crate/remove-extern-crate.stderr
[01:15:23] To update references, rerun the tests and pass the `--bless` flag
[01:15:23] To only update this specific test, also pass `--test-args rust-2018/remove-extern-crate.rs`
[01:15:23] error: 1 errors occurred comparing output.
[01:15:23] status: exit code: 0
[01:15:23] status: exit code: 0
[01:15:23] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/ui/rust-2018/remove-extern-crate.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-Zui-testing" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rust-2018/remove-extern-crate/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--edition=2018" "--extern" "remove_extern_crate" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/rust-2018/remove-extern-crate/auxiliary" "-A" "unused"
[01:15:23] ------------------------------------------
[01:15:23] 
[01:15:23] ------------------------------------------
[01:15:23] stderr:
[01:15:23] stderr:
[01:15:23] ------------------------------------------
[01:15:23] {"message":"unused extern crate","code":{"code":"unused_extern_crates","explanation":null},"level":"warning","spans":[{"file_name":"/checkout/src/test/ui/rust-2018/remove-extern-crate.rs","byte_start":158,"byte_end":176,"line_start":9,"line_end":9,"column_start":1,"column_end":19,"is_primary":true,"text":[{"text":"extern crate core;","highlight_start":1,"highlight_end":19}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"lint level defined here","code":null,"level":"note","spans":[{"file_name":"/checkout/src/test/ui/rust-2018/remove-extern-crate.rs","byte_start":138,"byte_end":154,"line_start":7,"line_end":7,"column_start":9,"column_end":25,"is_primary":true,"text":[{"text":"#![warn(rust_2018_idioms)]","highlight_start":9,"highlight_end":25}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[],"rendered":null},{"message":"#[warn(unused_extern_crates)] implied by #[warn(rust_2018_idioms)]","code":null,"level":"note","spans":[],"children":[],"rendered":null},{"message":"remove it","code":null,"level":"help","spans":[{"file_name":"/checkout/src/test/ui/rust-2018/remove-extern-crate.rs","byte_start":158,"byte_end":176,"line_start":9,"line_end":9,"column_start":1,"column_end":19,"is_primary":true,"text":[{"text":"extern crate core;","highlight_start":1,"highlight_end":19}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"warning: unused extern crate\n  --> /checkout/src/test/ui/rust-2018/remove-extern-crate.rs:9:1\n   |\nLL | extern crate core;\n   | ^^^^^^^^^^^^^^^^^^ help: remove it\n   |\nnote: lint level defined here\n  --> /checkout/src/test/ui/rust-2018/remove-extern-crate.rs:7:9\n   |\nLL | #![warn(rust_2018_idioms)]\n   |         ^^^^^^^^^^^^^^^^\n   = note: #[warn(unused_extern_crates)] implied by #[warn(rust_2018_idioms)]\n\n"}
[01:15:23] {"message":"`extern crate` is not idiomatic in the new edition","code":{"code":"unused_extern_crates","explanation":null},"level":"warning","spans":[{"file_name":"/checkout/src/test/ui/rust-2018/remove-extern-crate.rs","byte_start":177,"byte_end":211,"line_start":10,"line_end":10,"column_start":1,"column_end":35,"is_primary":true,"text":[{"text":"extern crate core as another_name;","highlight_start":1,"highlight_end":35}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"convert it to a `use`","code":null,"level":"help","spans":[{"file_name":"/checkout/src/test/ui/rust-2018/remove-extern-crate.rs","byte_start":177,"byte_end":211,"line_start":10,"line_end":10,"column_start":1,"column_end":35,"is_primary":true,"text":[{"text":"extern crate core as another_name;","highlight_start":1,"highlight_end":35}],"label":null,"suggested_replacement":"use core as another_name;","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"warning: `extern crate` is not idiomatic in the new edition\n  --> /checkout/src/test/ui/rust-2018/remove-extern-crate.rs:10:1\n   |\nLL | extern crate core as another_name;\n   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert it to a `use`\n\n"}
[01:15:23] {"message":"`extern crate` is not idiomatic in the new edition","code":{"code":"unused_extern_crates","explanation":null},"level":"warning","spans":[{"file_name":"/checkout/src/test/ui/rust-2018/remove-extern-crate.rs","byte_start":581,"byte_end":599,"line_start":28,"line_end":28,"column_start":5,"column_end":23,"is_primary":true,"text":[{"text":"    extern crate core;","highlight_start":5,"highlight_end":23}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"convert it to a `use`","code":null,"level":"help","spans":[{"file_name":"/checkout/src/test/ui/rust-2018/remove-extern-crate.rs","byte_start":581,"byte_end":599,"line_start":28,"line_end":28,"column_start":5,"column_end":23,"is_primary":true,"text":[{"text":"    extern crate core;","highlight_start":5,"highlight_end":23}],"label":null,"suggested_replacement":"use core;","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"warning: `extern crate` is not idiomatic in the new edition\n  --> /checkout/src/test/ui/rust-2018/remove-extern-crate.rs:28:5\n   |\nLL |     extern crate core;\n   |     ^^^^^^^^^^^^^^^^^^ help: convert it to a `use`\n\n"}
[01:15:23] ------------------------------------------
[01:15:23] 
[01:15:23] thread '[ui] ui/rust-2018/remove-extern-crate.rs' panicked at 'explicit panic', src/tools/compiletest/src/runtest.rs:3422:9
[01:15:23] 
---
[01:15:23] 
[01:15:23] thread 'main' panicked at 'Some tests failed', src/tools/compiletest/src/main.rs:516:22
[01:15:23] 
[01:15:23] 
[01:15:23] command did not execute successfully: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-tools-bin/compiletest" "--compile-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib" "--run-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib" "--rustc-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "--src-base" "/checkout/src/test/ui" "--build-base" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui" "--stage-id" "stage2-x86_64-unknown-linux-gnu" "--mode" "ui" "--target" "x86_64-unknown-linux-gnu" "--host" "x86_64-unknown-linux-gnu" "--llvm-filecheck" "/usr/lib/llvm-6.0/bin/FileCheck" "--host-rustcflags" "-Crpath -O -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--target-rustcflags" "-Crpath -O -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--docck-python" "/usr/bin/python2.7" "--lldb-python" "/usr/bin/python2.7" "--gdb" "/usr/bin/gdb" "--quiet" "--llvm-version" "6.0.0\n" "--system-llvm" "--cc" "" "--cxx" "" "--cflags" "" "--llvm-components" "" "--llvm-cxxflags" "" "--adb-path" "adb" "--adb-test-dir" "/data/tmp/work" "--android-cross-path" "" "--color" "always"
[01:15:23] 
[01:15:23] 
[01:15:23] failed to run: /checkout/obj/build/bootstrap/debug/bootstrap test
[01:15:23] Build completed unsuccessfully in 0:04:24
[01:15:23] Build completed unsuccessfully in 0:04:24
[01:15:23] make: *** [check] Error 1
[01:15:23] Makefile:48: recipe for target 'check' failed
The command "stamp sh -x -c "$RUN_SCRIPT"" exited with 2.
travis_time:start:17ea4658
$ date && (curl -fs --head https://google.com | grep ^Date: | sed 's/Date: //g' || true)
Wed Apr  3 19:33:57 UTC 2019
---
travis_time:end:1012d79c:start=1554320038771387391,finish=1554320038776551106,duration=5163715
travis_fold:end:after_failure.3
travis_fold:start:after_failure.4
travis_time:start:018bc910
$ ln -s . checkout && for CORE in obj/cores/core.*; do EXE=$(echo $CORE | sed 's|obj/cores/core\.[0-9]*\.!checkout!\(.*\)|\1|;y|!|/|'); if [ -f "$EXE" ]; then printf travis_fold":start:crashlog\n\033[31;1m%s\033[0m\n" "$CORE"; gdb --batch -q -c "$CORE" "$EXE" -iex 'set auto-load off' -iex 'dir src/' -iex 'set sysroot .' -ex bt -ex q; echo travis_fold":"end:crashlog; fi; done || true
travis_fold:end:after_failure.4
travis_fold:start:after_failure.5
travis_time:start:05b3c280
travis_time:start:05b3c280
$ cat ./obj/build/x86_64-unknown-linux-gnu/native/asan/build/lib/asan/clang_rt.asan-dynamic-i386.vers || true
cat: ./obj/build/x86_64-unknown-linux-gnu/native/asan/build/lib/asan/clang_rt.asan-dynamic-i386.vers: No such file or directory
travis_fold:end:after_failure.5
travis_fold:start:after_failure.6
travis_time:start:0daf452f
$ dmesg | grep -i kill

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN. (Feature Requests)

alexcrichton · 2019-04-04T21:00:25Z

I think it's probably best to land this after the beta branch next week? Just want to give it a but more time to bake if we can.

Other than that though r=me!

SimonSapin · 2019-04-04T21:57:02Z

That’s fine if you prefer, though in a way this has been baking for years already. The only thing changing now is stability attributes.

kennytm · 2019-04-06T07:31:36Z

(Marking as blocked by the beta release)

alexcrichton · 2019-04-11T14:05:47Z

@bors: r+

bors · 2019-04-11T14:05:48Z

📌 Commit f3173fed8499cc60a296622ce8e489e84704c6ca has been approved by alexcrichton

src/liballoc/lib.rs

Centril · 2019-04-12T11:12:31Z

@bors r-

Version number is wrong.

This implements RFC 2480: * rust-lang/rfcs#2480 * https://github.com/rust-lang/rfcs/blob/master/text/2480-liballoc.md Closes rust-lang#27783

…hton Stabilize the `alloc` crate. This implements RFC 2480: * rust-lang/rfcs#2480 * https://github.com/rust-lang/rfcs/blob/master/text/2480-liballoc.md Closes rust-lang#27783

@ghost

Rollup of 18 pull requests Successful merges: - rust-lang#59612 (Use normal newtype_index macro for MIR dataflows) - rust-lang#59675 (Stabilize the `alloc` crate.) - rust-lang#59708 (Mark variables captured by reference as mutable correctly) - rust-lang#59735 (remove lookup_char_pos_adj) - rust-lang#59747 (Copy book.toml unstable book generator) - rust-lang#59796 (Retire `IsNotConst` naming) - rust-lang#59804 (Clean up jobserver integration) - rust-lang#59818 (Eliminate `FnBox` usages from libstd.) - rust-lang#59830 (Fix links on keyword docs.) - rust-lang#59835 (Re-export NonZero signed variant in std) - rust-lang#59852 (std: Add `{read,write}_vectored` for more types) - rust-lang#59855 (Fix attributes position in type declaration) - rust-lang#59858 (Make duplicate matcher bindings a hard error) - rust-lang#59879 (Use SecRandomCopyBytes instead of /dev/urandom on MacOS) - rust-lang#59899 (In `-Zprint-type-size` output, sort enum variants by size.) - rust-lang#59912 (MaybeUninit: remove deprecated functions) - rust-lang#59925 (Fix paste error in split_ascii_whitespace docs.) - rust-lang#59930 (Exclude some copies of old book editions from search engines) Failed merges: r? @ghost

@ghost

Rollup of 18 pull requests Successful merges: - #59612 (Use normal newtype_index macro for MIR dataflows) - #59675 (Stabilize the `alloc` crate.) - #59708 (Mark variables captured by reference as mutable correctly) - #59735 (remove lookup_char_pos_adj) - #59747 (Copy book.toml unstable book generator) - #59796 (Retire `IsNotConst` naming) - #59804 (Clean up jobserver integration) - #59818 (Eliminate `FnBox` usages from libstd.) - #59830 (Fix links on keyword docs.) - #59835 (Re-export NonZero signed variant in std) - #59852 (std: Add `{read,write}_vectored` for more types) - #59855 (Fix attributes position in type declaration) - #59858 (Make duplicate matcher bindings a hard error) - #59879 (Use SecRandomCopyBytes instead of /dev/urandom on MacOS) - #59899 (In `-Zprint-type-size` output, sort enum variants by size.) - #59912 (MaybeUninit: remove deprecated functions) - #59925 (Fix paste error in split_ascii_whitespace docs.) - #59930 (Exclude some copies of old book editions from search engines) Failed merges: r? @ghost

…hton Stabilize the `alloc` crate. This implements RFC 2480: * rust-lang/rfcs#2480 * https://github.com/rust-lang/rfcs/blob/master/text/2480-liballoc.md Closes rust-lang#27783

bors · 2019-04-13T22:18:28Z

⌛ Testing commit fc928a1 with merge bd438f99f5cc387dd1853510445269c62e2d8e1e...

…hton Stabilize the `alloc` crate. This implements RFC 2480: * rust-lang/rfcs#2480 * https://github.com/rust-lang/rfcs/blob/master/text/2480-liballoc.md Closes rust-lang#27783

Centril · 2019-04-13T22:24:28Z

@bors retry

@ghost

Rollup of 16 pull requests Successful merges: - #59675 (Stabilize the `alloc` crate.) - #59708 (Mark variables captured by reference as mutable correctly) - #59735 (remove lookup_char_pos_adj) - #59747 (Copy book.toml unstable book generator) - #59796 (Retire `IsNotConst` naming) - #59804 (Clean up jobserver integration) - #59818 (Eliminate `FnBox` usages from libstd.) - #59830 (Fix links on keyword docs.) - #59835 (Re-export NonZero signed variant in std) - #59852 (std: Add `{read,write}_vectored` for more types) - #59855 (Fix attributes position in type declaration) - #59858 (Make duplicate matcher bindings a hard error) - #59899 (In `-Zprint-type-size` output, sort enum variants by size.) - #59912 (MaybeUninit: remove deprecated functions) - #59925 (Fix paste error in split_ascii_whitespace docs.) - #59930 (Exclude some copies of old book editions from search engines) Failed merges: r? @ghost

Pkgsrc changes: * NetBSD/sparc64 disabling of "packed" removed ("packed" removed upstream) * Adapt src_libstd_build.rs patch, update sed'ing of .cargo-checksum.json Build verified on NetBSD 8.0/amd64. Upstream changes: Version 1.36.0 (2019-07-04) ========================== Language -------- - [Non-Lexical Lifetimes are now enabled on the 2015 edition.][59114] - [The order of traits in trait objects no longer affects the semantics of that object.][59445] e.g. `dyn Send + fmt::Debug` is now equivalent to `dyn fmt::Debug + Send`, where this was previously not the case. Libraries --------- - [`HashMap`'s implementation has been replaced with `hashbrown::HashMap` implem entation.][58623] - [`TryFromSliceError` now implements `From<Infallible>`.][60318] - [`mem::needs_drop` is now available as a const fn.][60364] - [`alloc::Layout::from_size_align_unchecked` is now available as a const fn.][6 0370] - [`String` now implements `BorrowMut<str>`.][60404] - [`io::Cursor` now implements `Default`.][60234] - [Both `NonNull::{dangling, cast}` are now const fns.][60244] - [The `alloc` crate is now stable.][59675] `alloc` allows you to use a subset of `std` (e.g. `Vec`, `Box`, `Arc`) in `#![no_std]` environments if the environment has access to heap memory allocation. - [`String` now implements `From<&String>`.][59825] - [You can now pass multiple arguments to the `dbg!` macro.][59826] `dbg!` will return a tuple of each argument when there is multiple arguments. - [`Result::{is_err, is_ok}` are now `#[must_use]` and will produce a warning if not used.][59648] Stabilized APIs --------------- - [`VecDeque::rotate_left`] - [`VecDeque::rotate_right`] - [`Iterator::copied`] - [`io::IoSlice`] - [`io::IoSliceMut`] - [`Read::read_vectored`] - [`Write::write_vectored`] - [`str::as_mut_ptr`] - [`mem::MaybeUninit`] - [`pointer::align_offset`] - [`future::Future`] - [`task::Context`] - [`task::RawWaker`] - [`task::RawWakerVTable`] - [`task::Waker`] - [`task::Poll`] Cargo ----- - [Cargo will now produce an error if you attempt to use the name of a required dependency as a feature.][cargo/6860] - [You can now pass the `--offline` flag to run cargo without accessing the netw ork.][cargo/6934] You can find further change's in [Cargo's 1.36.0 release notes][cargo-1-36-0]. Clippy ------ There have been numerous additions and fixes to clippy, see [Clippy's 1.36.0 rel ease notes][clippy-1-36-0] for more details. Misc ---- Compatibility Notes ------------------- - [`std::arch::x86::_rdtsc` returns `u64` instead of `i64`][stdsimd/559] - [`std::arch::x86_64::_mm_shuffle_ps` takes an `i32` instead of `u32` for `mask `][stdsimd/522] - With the stabilisation of `mem::MaybeUninit`, `mem::uninitialized` use is no longer recommended, and will be deprecated in 1.38.0. [60318]: rust-lang/rust#60318 [60364]: rust-lang/rust#60364 [60370]: rust-lang/rust#60370 [60404]: rust-lang/rust#60404 [60234]: rust-lang/rust#60234 [60244]: rust-lang/rust#60244 [58623]: rust-lang/rust#58623 [59648]: rust-lang/rust#59648 [59675]: rust-lang/rust#59675 [59825]: rust-lang/rust#59825 [59826]: rust-lang/rust#59826 [59445]: rust-lang/rust#59445 [59114]: rust-lang/rust#59114 [cargo/6860]: rust-lang/cargo#6860 [cargo/6934]: rust-lang/cargo#6934 [`VecDeque::rotate_left`]: https://doc.rust-lang.org/std/collections/struct.VecDeque.html#method.rotate_left [`VecDeque::rotate_right`]: https://doc.rust-lang.org/std/collections/struct.VecDeque.html#method.rotate_right [`Iterator::copied`]: https://doc.rust-lang.org/std/iter/trait.Iterator.html#tymethod.copied [`io::IoSlice`]: https://doc.rust-lang.org/std/io/struct.IoSlice.html [`io::IoSliceMut`]: https://doc.rust-lang.org/std/io/struct.IoSliceMut.html [`Read::read_vectored`]: https://doc.rust-lang.org/std/io/trait.Read.html#method.read_vectored [`Write::write_vectored`]: https://doc.rust-lang.org/std/io/trait.Write.html#method.write_vectored [`str::as_mut_ptr`]: https://doc.rust-lang.org/std/primitive.str.html#method.as_mut_ptr [`mem::MaybeUninit`]: https://doc.rust-lang.org/std/mem/union.MaybeUninit.html [`pointer::align_offset`]: https://doc.rust-lang.org/std/primitive.pointer.html#method.align_offset [`future::Future`]: https://doc.rust-lang.org/std/future/trait.Future.html [`task::Context`]: https://doc.rust-lang.org/beta/std/task/struct.Context.html [`task::RawWaker`]: https://doc.rust-lang.org/beta/std/task/struct.RawWaker.html [`task::RawWakerVTable`]: https://doc.rust-lang.org/beta/std/task/struct.RawWakerVTable.html [`task::Waker`]: https://doc.rust-lang.org/beta/std/task/struct.Waker.html [`task::Poll`]: https://doc.rust-lang.org/beta/std/task/enum.Poll.html [clippy-1-36-0]: https://github.com/rust-lang/rust-clippy/blob/master/CHANGELOG.md#rust-136 [cargo-1-36-0]: https://github.com/rust-lang/cargo/blob/master/CHANGELOG.md#cargo-136-2019-07-04 [stdsimd/522]: rust-lang/stdarch#522 [stdsimd/559]: rust-lang/stdarch#559

This is because the rust_core create at version 0.6 uses the alloc crate which has been stabilized in rust 1.36. See rust-lang/rust#59675

rust-highfive assigned alexcrichton Apr 3, 2019

rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Apr 3, 2019

SimonSapin mentioned this pull request Apr 3, 2019

Tracking issue for location of facade crates #27783

Closed

Centril added relnotes Marks issues that should be documented in the release notes of the next release. T-libs-api Relevant to the library API team, which will review and decide on the PR/issue. labels Apr 3, 2019

Centril added this to the 1.35 milestone Apr 3, 2019

SimonSapin force-pushed the stable-alloc branch from 3cf9852 to f3173fe Compare April 4, 2019 10:25

kennytm added S-blocked Status: Blocked on something else such as an RFC or other implementation work. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Apr 6, 2019

flosse mentioned this pull request Apr 6, 2019

nostd support slowtec/tokio-modbus#16

Open

taiki-e mentioned this pull request Apr 7, 2019

Stabilize alloc feature rust-lang/futures-rs#1515

Merged

pepyakin mentioned this pull request Apr 10, 2019

Compile the wasm runtime with a stable toolchain paritytech/substrate#1252

Closed

4 tasks

bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-blocked Status: Blocked on something else such as an RFC or other implementation work. labels Apr 11, 2019

Centril modified the milestones: 1.35, 1.36 Apr 12, 2019

Centril reviewed Apr 12, 2019

View reviewed changes

src/liballoc/lib.rs Outdated Show resolved Hide resolved

bors added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Apr 12, 2019

Stabilize the alloc crate.

fc928a1

This implements RFC 2480: * rust-lang/rfcs#2480 * https://github.com/rust-lang/rfcs/blob/master/text/2480-liballoc.md Closes rust-lang#27783

SimonSapin force-pushed the stable-alloc branch from f3173fe to fc928a1 Compare April 12, 2019 18:07

Centril mentioned this pull request Apr 12, 2019

Rollup of 17 pull requests #59921

Closed

Centril mentioned this pull request Apr 13, 2019

Rollup of 18 pull requests #59937

Closed

Centril mentioned this pull request Apr 13, 2019

Rollup of 16 pull requests #59941

Closed

Centril mentioned this pull request Apr 13, 2019

Rollup of 16 pull requests #59949

Merged

bors merged commit fc928a1 into rust-lang:master Apr 14, 2019

This was referenced Apr 14, 2019

no_std support (with default-enabled "std" cargo feature) tokio-rs/bytes#255

Closed

alloc support (for no_std environments) tokio-rs/bytes#256

Closed

koushiro mentioned this pull request Apr 17, 2019

Update rust-toolchain to nightly-2019-04-17 chainx-org/chainx-common#6

Merged

This was referenced Apr 22, 2019

How can dynamically sized Vec<T> be using on STM32? rust-embedded/wg#335

Closed

Add dynamic heap usage (alloc stabilization) rust-embedded/discovery#182

Open

bjorn3 mentioned this pull request Apr 30, 2019

Use stable Rust (tracking ticket for unstable features we use) fishinabarrel/linux-kernel-module-rust#41

Open

8 tasks

Florob mentioned this pull request May 1, 2019

Mai 2019 Rustaceans/rust-cologne#79

Closed

10 tasks

dhardy mentioned this pull request Jun 16, 2019

Use Rust 2018 and remove build.rs rust-random/rand#824

Merged

cuviper mentioned this pull request Jun 24, 2019

Support #![no_std] rust-num/num-bigint#96

Closed

roblabla mentioned this pull request Aug 18, 2019

Release a new version with stable alloc servo/rust-smallvec#160

Closed

SimonSapin deleted the stable-alloc branch November 28, 2019 12:04

PaulGrandperrin added a commit to PaulGrandperrin/proptest that referenced this pull request Dec 22, 2020

Minimum rust version increased to 1.36

e52c7a5

This is because the rust_core create at version 0.6 uses the alloc crate which has been stabilized in rust 1.36. See rust-lang/rust#59675

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Stabilize the `alloc` crate. #59675

Stabilize the `alloc` crate. #59675

SimonSapin commented Apr 3, 2019

rust-highfive commented Apr 3, 2019

SimonSapin commented Apr 3, 2019

rust-highfive commented Apr 3, 2019

alexcrichton commented Apr 4, 2019

SimonSapin commented Apr 4, 2019

kennytm commented Apr 6, 2019

alexcrichton commented Apr 11, 2019

bors commented Apr 11, 2019

Centril commented Apr 12, 2019

bors commented Apr 13, 2019

Centril commented Apr 13, 2019

Stabilize the alloc crate. #59675

Stabilize the alloc crate. #59675

Conversation

SimonSapin commented Apr 3, 2019

rust-highfive commented Apr 3, 2019

SimonSapin commented Apr 3, 2019

rust-highfive commented Apr 3, 2019

alexcrichton commented Apr 4, 2019

SimonSapin commented Apr 4, 2019

kennytm commented Apr 6, 2019

alexcrichton commented Apr 11, 2019

bors commented Apr 11, 2019

Centril commented Apr 12, 2019

bors commented Apr 13, 2019

Centril commented Apr 13, 2019

Stabilize the `alloc` crate. #59675

Stabilize the `alloc` crate. #59675