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
warning: ignoring the user-specified setting 'show-trace', 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-2/.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-2/pkgs/top-level/release-lib.nix:121:6, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/lib/attrsets.nix:292:43:
while evaluating 'hydraJob' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/lib/customisation.nix:171:14, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/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-2/lib/customisation.nix:188:13:
while evaluating the attribute 'drvPath' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/lib/customisation.nix:155:13:
while evaluating the attribute 'nativeBuildInputs' of the derivation 'arm-trusted-firmware-sun50i_a64-2.3' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/pkgs/misc/arm-trusted-firmware/default.nix:13:5:
while evaluating 'getOutput' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/lib/attrsets.nix:464:23, called from undefined position:
while evaluating anonymous function at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/pkgs/stdenv/generic/make-derivation.nix:134:17, called from undefined position:
while evaluating the attribute 'arm-embedded.stdenv.cc' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/pkgs/stdenv/generic/default.nix:156:14:
while evaluating the attribute 'gcc' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/pkgs/top-level/all-packages.nix:8167:3:
while evaluating 'addMetaAttrs' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/lib/meta.nix:15:28, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/pkgs/top-level/all-packages.nix:8336:10:
while evaluating 'wrapCC' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/pkgs/top-level/all-packages.nix:9237:12, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/pkgs/top-level/all-packages.nix:8336:19:
while evaluating 'wrapCCWith' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/pkgs/top-level/all-packages.nix:9215:5, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/pkgs/top-level/all-packages.nix:9237:16:
while evaluating 'callPackageWith' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/lib/customisation.nix:117:35, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/pkgs/top-level/all-packages.nix:9225:7:
while evaluating 'makeOverridable' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/lib/customisation.nix:67:24, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/lib/customisation.nix:121:8:
while evaluating anonymous function at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/pkgs/build-support/cc-wrapper/default.nix:8:1, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/lib/customisation.nix:69:16:
while evaluating the attribute 'mesonFlags' of the derivation 'newlib-3.3.0-arm-none-eabi' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/pkgs/stdenv/generic/make-derivation.nix:198:11:
attribute 'arm' missing, at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/packet-spot-eval-2/pkgs/stdenv/generic/make-derivation.nix:273:31