message: ci: bump minimum toolchain
diff: @@ -30,7 +30,7 @@ jobs:
  - cargo test --features failpoints
  - name: "Test with minimum supported toolchain"
  arch: amd64
  - rust: 1.39.0
  + rust: 1.40.0
  script:
  - cargo test --release
  - name: "Lints with pinned toolchain"
  