tests/test-check-cargo-lock.t

test: simpler requirements matching in test-repo-compengines.t

We focus on the requirements relevant for this tests.

Differential Revision: https://phab.mercurial-scm.org/D11990

#require cargo test-repo
  $ . "$TESTDIR/helpers-testrepo.sh"
  $ cd "$TESTDIR"/../rust

Check if Cargo.lock is up-to-date. Will fail with a 101 error code if not.

  $ cargo check --locked --all --quiet

However most CIs will run `cargo build` or similar before running the tests, so we need to check if it was modified

  $ testrepohg diff Cargo.lock