this derivation will be built:
  /nix/store/3a2das5cyc9xvzck1sa25cfd4s4gvvc7-bcachefs-module-7.0.0-14-generic.drv
building '/nix/store/3a2das5cyc9xvzck1sa25cfd4s4gvvc7-bcachefs-module-7.0.0-14-generic.drv'...