these 5 derivations will be built:
  /nix/store/chz4jx9qbjzbz5q32yrgs0lfnmv33vp7-clan-runtime.drv
  /nix/store/r3gmn21dymp8l3pgqqi7vp884b4bc1kx-clan-cli-source.drv
  /nix/store/kyh88rxdldlf8ndk1dv4whgw7bd4yvif-clan-cli.drv
  /nix/store/wviwfg13c7y40506j1z5znw45fyvafwj-closure-info.drv
  /nix/store/8fmmp587s4piagazbzrm5javbi55gxy3-check-vars.drv