Clean-up dependencies, do some chores (#73)

* remove unused cfg-if dependency

* clean-up dependency management

- No longer enable `serde` dependency when enabling `std` crate feature.
- Rename `serde-1` to just `serde`.

* apply rustfmt and clippy fixes

* remove conditional compilation for outdated tarpaulin coverage reporter

* fix serde-1 renaming usage

* update to hashbrown 0.15.1

* fix GitHub CI debug-assertions setting

* remove commented out code

* update html_root_url for next version

* fix clippy warning

* silence useless clippy warning

* move code in front of test module

* try to fix coverage CI job

* no longer gitignore Cargo.lock

* add Cargo.lock to git

* improve no_std import config

* fix intra doc link

* apply rustfmt

.github/workflows/rust.yml

@@ -66,7 +66,7 @@ jobs:
         run: git submodule update --init --recursive
       - name: Test (Release)
         env:
-          RUSTFLAGS: "--cfg debug_assertions"
+          RUSTFLAGS: "-C debug-assertions"
         run: cargo test --release
 
   test-memory:
@@ -157,7 +157,8 @@ jobs:
       - name: Run cargo-tarpaulin
         uses: actions-rs/[email protected]
         with:
-          args: '--features test-allocations -- --test-threads 1'
+          version: "0.18.0"
+          args: --features test-allocations --locked -- --test-threads 1
       - name: Upload to codecov.io
         uses: codecov/[email protected]
         with:

.gitignore

@@ -1,9 +1 @@
-# Generated by Cargo
-# will have compiled files and executables
 /target/
-
-# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
-# More information here http://doc.crates.io/guide.html#cargotoml-vs-cargolock
-Cargo.lock
-target
-Cargo.lock