this derivation will be built:
  /nix/store/a7laqrrrfqvpmqlw25q8xnv05n8b9vqr-bcachefs-module-7.1.5-zen1-1-zen.drv
building '/nix/store/a7laqrrrfqvpmqlw25q8xnv05n8b9vqr-bcachefs-module-7.1.5-zen1-1-zen.drv'...