these 5 derivations will be built:
  /nix/store/8wvkg0giyk84b83cn7f75s5rwsah40fk-source.drv
  /nix/store/xrklybp64d0als5b8r8zwdyilh9fijfp-clauth-0.18.2-vendor-staging.drv
  /nix/store/vvh8nbqg5bir0mms7chbwk0p8sdn0i30-clauth-0.18.2-vendor.drv
  /nix/store/xm8pdsg3qb4j4adc1qak9lc6pcbis65k-clauth-0.18.2.drv
  /nix/store/zmyya9g21cdlsmm4c3zvf9272sb2cccy-check-clauth.drv