this derivation will be built:
  /nix/store/q2mkkrh4yvlcidmwxc1x78ib711cz36i-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/q2mkkrh4yvlcidmwxc1x78ib711cz36i-bcachefs-module-7.0.0-39-generic.drv'...