Output path comparison

nix-env failed:
warning: ignoring the user-specified setting 'restrict-eval', because it is a restricted setting and you are not a trusted user
error: while evaluating anonymous function at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/.gc-of-borg-outpaths.nix:44:12, called from undefined position:
while evaluating anonymous function at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/top-level/release-lib.nix:121:6, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/lib/attrsets.nix:292:43:
while evaluating 'hydraJob' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/lib/customisation.nix:171:14, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/top-level/release-lib.nix:121:14:
while evaluating the attribute 'drvPath' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/lib/customisation.nix:188:13:
while evaluating the attribute 'drvPath' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/lib/customisation.nix:155:13:
while evaluating the attribute 'buildInputs' of the derivation 'apostrophe-2.2.0.3' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/stdenv/generic/make-derivation.nix:192:11:
while evaluating the attribute 'passAsFile' of the derivation 'python3-3.8.5-env' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/build-support/trivial-builders.nix:7:7:
while evaluating 'requiredPythonModules' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/top-level/python-packages.nix:64:27, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/development/interpreters/python/wrapper.nix:15:13:
while evaluating 'unique' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/lib/lists.nix:643:12, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/top-level/python-packages.nix:66:6:
while evaluating 'unique' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/lib/lists.nix:643:12, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/lib/lists.nix:649:17:
while evaluating anonymous function at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/lib/lists.nix:152:16, called from undefined position:
while evaluating the attribute 'outPath' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/lib/customisation.nix:164:7:
while evaluating the attribute 'postPatch' of the derivation 'python3.8-pypandoc-1.5' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/development/interpreters/python/mk-python-derivation.nix:110:5:
while evaluating 'callPackageWith' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/lib/customisation.nix:117:35, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/top-level/all-packages.nix:6110:12:
while evaluating 'makeOverridable' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/lib/customisation.nix:67:24, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/lib/customisation.nix:121:8:
while evaluating anonymous function at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/development/tools/pandoc/default.nix:1:1, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/lib/customisation.nix:69:16:
while evaluating 'overrideCabal' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/development/haskell-modules/lib.nix:37:24, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/development/tools/pandoc/default.nix:7:4:
while evaluating 'justStaticExecutables' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/development/haskell-modules/lib.nix:244:27, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/development/tools/pandoc/default.nix:4:12:
while evaluating 'overrideCabal' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/development/haskell-modules/lib.nix:37:24, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/development/haskell-modules/lib.nix:244:32:
while evaluating the attribute 'pandoc' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/development/haskell-modules/configuration-common.nix:1458:3:
while evaluating 'doDistribute' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/development/haskell-modules/lib.nix:123:18, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/development/haskell-modules/configuration-common.nix:1458:12:
while evaluating 'overrideCabal' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/development/haskell-modules/lib.nix:37:24, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/development/haskell-modules/lib.nix:123:23:
attribute 'pandoc_2_10_1' missing, at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-3/pkgs/development/haskell-modules/configuration-common.nix:1458:25