these 2 derivations will be built:
  /nix/store/x03b15w5rjampddnz8njrvvcy0p5vcf9-source.drv
  /nix/store/ir1xdbj88s73x17w2jvgh98iq1a2za5s-code-review-graph-2.3.9.drv
bld4: lost niks3 claim before publishing, retrying elsewhere