these 3 derivations will be built:
  /nix/store/if14xcin9gs51zm4sbf9jpldwgvgj351-vendor-cargo-deps.drv
  /nix/store/gqzgs6lx3p2cb0zrwwdydd1b0w49qn3z-harmonia-deps-3.3.0.drv
  /nix/store/qifjvr5g5bq0jbv6y2rpsan2y51fbgqs-harmonia-llvm-cov-3.3.0.drv