++ mktemp -d
+ checkout=/tmp/tmp.WC6uGI0CZG
+ trap 'rm -rf "$checkout"' EXIT
+ cp -R /var/lib/ci-tron/sources/4d79ba7e66380de6/. /tmp/tmp.WC6uGI0CZG
+ cd /tmp/tmp.WC6uGI0CZG
+ nix develop --command odin build . -out:term
GC Warning: Could not open /proc/stat
+ rm -rf /tmp/tmp.WC6uGI0CZG