this derivation will be built:
  /nix/store/1r5hrl85xh3vy80a99higxdywzadnmd2-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/1r5hrl85xh3vy80a99higxdywzadnmd2-bcachefs-module-7.0.0-39-generic.drv'...