Output path comparison

trace: WARNING: chromium: stable version 66.0.3359.117 is newer than a patchset bounded at 66. You can safely delete it.
error: while evaluating anonymous function at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-1-lassulus.ewr1.nix.ci/.gc-of-borg-outpaths.nix:35:12, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-1-lassulus.ewr1.nix.ci/lib/attrsets.nix:199:52:
while evaluating the attribute 'aarch64-linux' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-1-lassulus.ewr1.nix.ci/lib/attrsets.nix:185:41:
while evaluating anonymous function at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-1-lassulus.ewr1.nix.ci/pkgs/top-level/release-lib.nix:94:6, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-1-lassulus.ewr1.nix.ci/lib/attrsets.nix:282:43:
while evaluating 'hydraJob' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-1-lassulus.ewr1.nix.ci/lib/customisation.nix:162:14, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-1-lassulus.ewr1.nix.ci/pkgs/top-level/release-lib.nix:94:14:
while evaluating the attribute 'outPath' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-1-lassulus.ewr1.nix.ci/lib/customisation.nix:178:13:
while evaluating the attribute 'outPath' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-1-lassulus.ewr1.nix.ci/lib/customisation.nix:147:13:
while evaluating the attribute 'patches' of the derivation 'kcov-35' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-1-lassulus.ewr1.nix.ci/pkgs/stdenv/generic/make-derivation.nix:148:11:
getting status of '/var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/eval-1-lassulus.ewr1.nix.ci/pkgs/development/tools/analysis/kcov/aarch64_nt_prstatus.patch': No such file or directory