this derivation will be built:
  /nix/store/nks81yn778ly6ky6ahciwvzddvdbgpnz-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/nks81yn778ly6ky6ahciwvzddvdbgpnz-bcachefs-module-7.0.0-29-generic.drv'...