++ mktemp -d
+ checkout=/tmp/tmp.lRQLbajCm2
+ trap 'rm -rf "$checkout"' EXIT
+ cp -R /var/lib/ci-tron/sources/20261029T150108055090Z_ca53bd/. /tmp/tmp.lRQLbajCm2
+ cd /tmp/tmp.lRQLbajCm2
+ nix develop --command python3 scripts/capabilities.py docs --check
GC Warning: Could not open /proc/stat
+ rm -rf /tmp/tmp.lRQLbajCm2