$ docker run --rm --name validator-giflib-usage-giflib-tools-r12-giftool-format-image-index-monotonic-2536 -t --mount type=bind,src=/tmp/validator-status-giflib-usage-giflib-tools-r12-giftool-format-image-index-monotonic,dst=/validator/status validator-giflib-shared bash -lc 'set -euo pipefail
/validator/tests/_shared/install_override_debs.sh
exec /validator/tests/_shared/run_library_tests.sh "$@"' validator-testcase giflib usage-giflib-tools-r12-giftool-format-image-index-monotonic -- bash -c 'PS4=$1; shift; set -x; source "$@"' validator-xtrace '__VALIDATOR_XTRACE__ ' /validator/tests/giflib/tests/cases/usage/usage-giflib-tools-r12-giftool-format-image-index-monotonic.sh
no override packages found; continuing with apt originals
     { if ($1 != prev + 1) { printf "non-monotonic at line %d: %s after %d\n", NR, $1, prev > "/dev/stderr"; exit 1 }
       prev = $1 }' /tmp/validator-tmp/n.txt