build: lift workspace MSRV further to 1.85 for criterion's clap_lex

The first MSRV bump to 1.80 fixed the rayon-core floor but ran into a
second transitive-dep floor on the same CI run:

    error: failed to parse manifest at clap_lex-1.1.0/Cargo.toml
    Caused by: feature `edition2024` is required
    The package requires the Cargo feature called `edition2024`, but
    that feature is not stabilized in this version of Cargo (1.80.1).

clap_lex 1.1.0 is pulled in by criterion (dev-dep on the wickra crate)
via clap 4.6 -> clap_builder 4.6 -> clap_lex 1.1. edition2024 was
stabilized in Rust 1.85, so lift the workspace MSRV one more step. The
1.85 floor subsumes the rayon-core 1.80 requirement; bindings/node
stays at 1.88 (napi-build) which already covers everything below it.

Also fix the fuzz job: cargo-fuzz defaulted to building for
x86_64-unknown-linux-musl, which is not installed on the GitHub-hosted
ubuntu runner. Pass --target x86_64-unknown-linux-gnu explicitly on
every cargo fuzz run invocation so it builds for the actual host
target.

.github/workflows/ci.yml

@@ -56,12 +56,14 @@ jobs:
         run: cargo build -p wickra-examples --bins
 
   # Verify the crates still build and test on their declared minimum supported
-  # Rust version. The workspace pins rust-version = "1.80" (raised from 1.75
+  # Rust version. The workspace pins rust-version = "1.85" — that floor is
-  # so rayon-core >= 1.13.0 keeps compiling); bindings/node pins
+  # set by clap_lex 1.1.0 (transitively pulled in by the criterion dev-dep)
-  # rust-version = "1.88" because napi-build 2.3.2 requires it (and that
+  # which needs the stabilized edition2024 feature (stable since Rust 1.85);
-  # subsumes the older 1.77 floor needed for `cargo::` directives). Without
+  # rayon-core 1.13.0 only needed 1.80 and is subsumed by the 1.85 floor.
-  # this job an accidental use of a newer API would only surface for
+  # bindings/node pins rust-version = "1.88" because napi-build 2.3.2
-  # downstream users.
+  # requires it (and that subsumes the older 1.77 floor needed for
+  # `cargo::` directives). Without this job an accidental use of a newer
+  # API would only surface for downstream users.
   msrv:
     name: ${{ matrix.name }}
     runs-on: ubuntu-latest
@@ -69,8 +71,8 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - name: MSRV workspace (Rust 1.80)
+          - name: MSRV workspace (Rust 1.85)
-            toolchain: "1.80"
+            toolchain: "1.85"
             packages: "-p wickra-core -p wickra -p wickra-data"
           - name: MSRV node binding (Rust 1.88)
             toolchain: "1.88"
@@ -174,23 +176,23 @@ jobs:
           tool: cargo-fuzz
 
       - name: Fuzz csv_reader (30 s)
-        run: cargo +nightly fuzz run csv_reader -- -max_total_time=30
+        run: cargo +nightly fuzz run --target x86_64-unknown-linux-gnu csv_reader -- -max_total_time=30
         working-directory: fuzz
 
       - name: Fuzz binance_envelope (30 s)
-        run: cargo +nightly fuzz run binance_envelope -- -max_total_time=30
+        run: cargo +nightly fuzz run --target x86_64-unknown-linux-gnu binance_envelope -- -max_total_time=30
         working-directory: fuzz
 
       - name: Fuzz indicator_update (30 s)
-        run: cargo +nightly fuzz run indicator_update -- -max_total_time=30
+        run: cargo +nightly fuzz run --target x86_64-unknown-linux-gnu indicator_update -- -max_total_time=30
         working-directory: fuzz
 
       - name: Fuzz indicator_update_candle (30 s)
-        run: cargo +nightly fuzz run indicator_update_candle -- -max_total_time=30
+        run: cargo +nightly fuzz run --target x86_64-unknown-linux-gnu indicator_update_candle -- -max_total_time=30
         working-directory: fuzz
 
       - name: Fuzz tick_aggregator (30 s)
-        run: cargo +nightly fuzz run tick_aggregator -- -max_total_time=30
+        run: cargo +nightly fuzz run --target x86_64-unknown-linux-gnu tick_aggregator -- -max_total_time=30
         working-directory: fuzz
 
   python:

CHANGELOG.md

@@ -8,13 +8,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 ### Changed
-- **MSRV bumped.** Workspace minimum supported Rust version is now **1.80**
+- **MSRV bumped.** Workspace minimum supported Rust version is now **1.85**
   (was 1.75) and the Node binding (`wickra-node`) is now **1.88** (was 1.77).
   The bumps are driven by transitive-dependency floors that were lifted in
-  recent updates: `rayon-core >= 1.13.0` requires Rust 1.80, and
+  recent updates: `clap_lex >= 1.1.0` (pulled in via the criterion dev-dep)
-  `napi-build >= 2.3.2` requires Rust 1.88. Pinning the deps to the older
+  requires the stabilized `edition2024` feature (stable since Rust 1.85),
-  versions would have frozen us out of future security fixes from those
+  and `napi-build >= 2.3.2` requires Rust 1.88. Pinning the deps to the
-  upstreams, so lifting the MSRV is the cleaner path for a young 0.x
+  older versions would have frozen us out of future security fixes from
+  those upstreams, so lifting the MSRV is the cleaner path for a young 0.x
   library. Downstream consumers on older Rust toolchains can stay on
   Wickra 0.2.0.
 

Cargo.toml

@@ -15,7 +15,7 @@ exclude = ["fuzz"]
 version = "0.2.0"
 authors = ["kingchenc <kingchencp@gmail.com>"]
 edition = "2021"
-rust-version = "1.80"
+rust-version = "1.85"
 license = "PolyForm-Noncommercial-1.0.0"
 repository = "https://github.com/kingchenc/wickra"
 homepage = "https://github.com/kingchenc/wickra"