this derivation will be built: /nix/store/azhr19gqq69rybjhzp830z3sks58zhj3-bcachefs-module-7.0.0-29-generic.drv building '/nix/store/azhr19gqq69rybjhzp830z3sks58zhj3-bcachefs-module-7.0.0-29-generic.drv'...