* add support for single-crate coverage to help iterate, update to latest grcov * shellcheck * fixup * remove unused * install grcov before setting RUSTFLAGS ;) * rely on nightly having grcov installed
* add support for single-crate coverage to help iterate, update to latest grcov * shellcheck * fixup * remove unused * install grcov before setting RUSTFLAGS ;) * rely on nightly having grcov installed