this derivation will be built: /nix/store/c0q0mlprjzbb2i6acmlj9rlsjxjaw48n-bcachefs-module-7.0.0-38-generic.drv building '/nix/store/c0q0mlprjzbb2i6acmlj9rlsjxjaw48n-bcachefs-module-7.0.0-38-generic.drv'...