this derivation will be built:
  /nix/store/1k6nlxs1w2cg3cvnz4vhqb3k4rgzbmxf-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/1k6nlxs1w2cg3cvnz4vhqb3k4rgzbmxf-bcachefs-module-7.0.0-34-generic.drv'...