yikes, MSRV to 1.74...

.github/workflows/rust.yml

@@ -250,11 +250,11 @@ jobs:
 
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: "1.67.0"
+          toolchain: "1.74.0"
           override: true
 
       - name: check if README matches MSRV defined here
-        run: grep '1.67.0' src/core/README.md
+        run: grep '1.74.0' src/core/README.md
 
       - name: Check if it builds properly
         uses: actions-rs/cargo@v1

src/core/Cargo.toml

@@ -11,7 +11,7 @@ edition = "2021"
 readme = "README.md"
 autoexamples = false
 autobins = false
-rust-version = "1.67.0"
+rust-version = "1.74.0"
 
 [lib]
 name = "sourmash"
@@ -50,8 +50,6 @@ once_cell = "1.18.0"
 ouroboros = "0.18.3"
 primal-check = "0.3.1"
 rayon = { version = "1.9.0", optional = true }
-rc-zip = { version = "4.0.0", default-features = false }
-rc-zip-sync = "4.0.0"
 rkyv = { version = "0.7.44", optional = true }
 roaring = "0.10.3"
 roots = "0.0.8"
@@ -114,3 +112,5 @@ wasm-bindgen-test = "0.3.42"
 ### These crates don't compile on wasm
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 rocksdb = { version = "0.21.0", optional = true }
+rc-zip = { version = "4.0.0", default-features = false }
+rc-zip-sync = "4.0.0"

src/core/README.md

@@ -38,4 +38,4 @@ Development happens on github at
 
 ## Minimum supported Rust version
 
-Currently the minimum supported Rust version is 1.67.0.
+Currently the minimum supported Rust version is 1.74.0.

src/core/src/errors.rs

@@ -71,13 +71,14 @@ pub enum SourmashError {
     #[error(transparent)]
     CsvError(#[from] csv::Error),
 
-    #[error(transparent)]
-    ZipError(#[from] rc_zip::error::Error),
-
     #[cfg(not(all(target_arch = "wasm32", target_os = "unknown")))]
     #[error(transparent)]
     Panic(#[from] crate::ffi::utils::Panic),
 
+    #[cfg(not(target_arch = "wasm32"))]
+    #[error(transparent)]
+    ZipError(#[from] rc_zip::error::Error),
+
     #[cfg(not(target_arch = "wasm32"))]
     #[cfg(feature = "branchwater")]
     #[error(transparent)]