error: while evaluating anonymous function at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-2-shlevy.ewr1.nix.ci/.gc-of-borg-outpaths.nix:39:12, called from undefined position:
while evaluating anonymous function at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-2-shlevy.ewr1.nix.ci/pkgs/top-level/release-lib.nix:121:6, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-2-shlevy.ewr1.nix.ci/lib/attrsets.nix:292:43:
while evaluating 'hydraJob' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-2-shlevy.ewr1.nix.ci/lib/customisation.nix:157:14, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-2-shlevy.ewr1.nix.ci/pkgs/top-level/release-lib.nix:121:14:
while evaluating the attribute 'drvPath' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-2-shlevy.ewr1.nix.ci/lib/customisation.nix:174:13:
while evaluating the attribute 'drvPath' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-2-shlevy.ewr1.nix.ci/lib/customisation.nix:141:13:
while evaluating the attribute 'preBuild' of the derivation 'concourse-unstable' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-2-shlevy.ewr1.nix.ci/lib/attrsets.nix:194:41:
while evaluating the attribute 'preBuild' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-2-shlevy.ewr1.nix.ci/pkgs/development/tools/continuous-integration/concourse/default.nix:40:14:
while evaluating the attribute 'configurePhase' of the derivation 'concourse-main-assets' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-2-shlevy.ewr1.nix.ci/pkgs/development/tools/yarn2nix/default.nix:145:7:
while evaluating 'importJSON' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-2-shlevy.ewr1.nix.ci/lib/trivial.nix:244:16, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-2-shlevy.ewr1.nix.ci/pkgs/development/tools/yarn2nix/default.nix:133:17:
cannot read '/nix/store/vp3zl26h1k446avbwx23fwdr9yam8c3r-source/package.json', since path '/nix/store/2qphsf1fm3x61ik39lj87dqn7x4gg25i-source.drv' is not valid, at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-2-shlevy.ewr1.nix.ci/lib/trivial.nix:245:24