this derivation will be built:
  /nix/store/86x6cg2nr5g3ij1i9vxswj9xl8lsvw46-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/86x6cg2nr5g3ij1i9vxswj9xl8lsvw46-bcachefs-module-7.0.0-39-generic.drv'...