these 6 derivations will be built:
  /nix/store/d26ma46rr6b5l8217lhgasw403wsyi75-cargo-package-tokio-test-0.4.6.drv
  /nix/store/2j1z0clam7a0j2ikv1yrzy0wi6dcrmsk-vendor-registry.drv
  /nix/store/f8fdr1r3v2zba73gc4a2k3k8lv3vqhq0-vendor-cargo-deps.drv
  /nix/store/70qwqimdgkwz1vl30gns1cj7mjmgx19s-source.drv
  /nix/store/sb3bc5rdbhs275ix25bw5046mrk4aq7r-harmonia-deps-3.3.0.drv
  /nix/store/581hi7ayvskpvqkn909mdcd6l4pqzlxl-harmonia-llvm-cov-3.3.0.drv