this derivation will be built:
  /nix/store/91sb0p4azm3dy970r2cl89k13vcgpmxa-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/91sb0p4azm3dy970r2cl89k13vcgpmxa-bcachefs-module-7.0.0-39-generic.drv'...