these 5 derivations will be built:
  /nix/store/f0b2hr5dvzdiipgfvcvgnj7rml39akp0-source.drv
  /nix/store/w26wpas17n3pj302ab5p6xrh0850kpja-ctx-2.0.5-vendor-staging.drv
  /nix/store/i2s3h8chil3f9a7jks9jhhvyl2mz4yhv-ctx-2.0.5-vendor.drv
  /nix/store/rm49hf53vz7c5iyq7jdvfvlcs6hp9s4m-ctx-2.0.5.drv
  /nix/store/vfdpx1ksa1jp8bhm7v30b1i4sshr60q1-check-ctx.drv