this derivation will be built:
  /nix/store/v9sa2hhfzp112ajvw3rhqhsp3nzsawfq-bcachefs-module-7.1.5-zen1-1-zen.drv
building '/nix/store/v9sa2hhfzp112ajvw3rhqhsp3nzsawfq-bcachefs-module-7.1.5-zen1-1-zen.drv'...