this derivation will be built:
  /nix/store/q1b14kmawg94bwnkxpd342n87fbfcpws-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/q1b14kmawg94bwnkxpd342n87fbfcpws-bcachefs-module-7.0.0-39-generic.drv'...