message: incremental build
diff: @@ -7,7 +7,10 @@ on:
  pull_request:
  env:
  + # https://doc.rust-lang.org/cargo/reference/profiles.html#release
  RUSTFLAGS: -Coverflow-checks=y
  + # https://doc.rust-lang.org/cargo/reference/profiles.html#incremental
  + CARGO_INCREMENTAL: true
  jobs:
  run_checks:
  