unpacking 'https://github.com/NixOS/nixpkgs/archive/2c423e03bbafcff28bfadc6781a4a8257f205cb5.tar.gz' into the Git cache...
this derivation will be built:
  /nix/store/x77k1rs8n4qdnsrdcl9c16k22r520pfc-bcachefs-module-7.1.10-arch1-1.drv
building '/nix/store/x77k1rs8n4qdnsrdcl9c16k22r520pfc-bcachefs-module-7.1.10-arch1-1.drv'...