these 5 derivations will be built:
  /nix/store/syf1hh2sqjc61j3mhrrqb5lzlxddbgsx-closure-info.drv
  /nix/store/hnjvsl57w6064qxk28qn0wg7l1g2p3js-clan-runtime.drv
  /nix/store/f3px6sp6xdi8a1bfbc0z3vcgk97fvx0d-clan-cli-source.drv
  /nix/store/wlrp4s2pj7y06c045gil9gyzkw339bvm-clan-cli.drv
  /nix/store/6gc8srix9dd1n26809wl7w4nmw05rkpy-check-vars.drv