nixbot

failed to register gcroot /var/lib/nixbot/eval-gcroots/1/inputs/h86zxkqmgqfbq4pgbh1jq07c6xjpcrk7-source -> /nix/store/h86zxkqmgqfbq4pgbh1jq07c6xjpcrk7-source: don't know how to build these paths:
  /nix/store/h86zxkqmgqfbq4pgbh1jq07c6xjpcrk7-source
error: build of '/nix/store/h86zxkqmgqfbq4pgbh1jq07c6xjpcrk7-source' failed