Raise minimum tested compiler to rust 1.86

Author: dtolnay

.github/workflows/ci.yml

@@ -24,7 +24,7 @@ jobs:
  strategy:
  fail-fast: false
  matrix:
- rust: [nightly, beta, stable, 1.68.0]
+ rust: [nightly, beta, stable, 1.86.0]
  timeout-minutes: 45
  steps:
  - uses: actions/checkout@v6
@@ -47,6 +47,18 @@ jobs:
  path: Cargo.lock
  continue-on-error: true
 
+ msrv:
+ name: Rust 1.68.0
+ needs: pre_ci
+ if: needs.pre_ci.outputs.continue
+ runs-on: ubuntu-latest
+ timeout-minutes: 45
+ steps:
+ - uses: actions/checkout@v6
+ - uses: dtolnay/rust-toolchain@1.68.0
+ - run: cargo build
+ - run: cargo build --features small
+
  doc:
  name: Documentation
  needs: pre_ci