these 5 derivations will be built:
  /nix/store/ks45adj7kfwvxyq13qlgrjgg0av99al2-source.drv
  /nix/store/s7cbicd0yl7s6aygn0v3zdbx4m2ichj8-ctx-2.0.5-vendor-staging.drv
  /nix/store/8vs7dn5xbcfgy895gpqh2s5fv35chmni-ctx-2.0.5-vendor.drv
  /nix/store/1r1h95f84b1cmqnj9im7m76sd2pcqq17-ctx-2.0.5.drv
  /nix/store/kgbjh0cxmyfywrssqx92zlfmcrcnz6ci-check-ctx.drv