this derivation will be built:
  /nix/store/kc44k53rkgdiscz0lj2c0cqjxvyv70hs-release-rehearsal.drv
this path will be fetched (0.0 KiB download, 2.5 KiB unpacked):
  /nix/store/j9g09q1rrl1rcacgp721izias3rfkwh4-github-api-stub.py