$ docker run --rm --name validator-giflib-usage-giflib-tools-gifclrmp-grid-reload-modified-42799 -t --mount type=bind,src=/tmp/validator-status-giflib-usage-giflib-tools-gifclrmp-grid-reload-modified,dst=/validator/status --mount type=bind,src=/home/runner/work/validator/validator/.work/pages-artifacts/debs/port/giflib,dst=/override-debs,readonly 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-gifclrmp-grid-reload-modified -- bash -c 'PS4=$1; shift; set -x; source "$@"' validator-xtrace '__VALIDATOR_XTRACE__ ' /validator/tests/giflib/tests/cases/usage/usage-giflib-tools-gifclrmp-grid-reload-modified.sh
installing override packages from /override-debs
(Reading database ... (Reading database ... 5%(Reading database ... 10%(Reading database ... 15%(Reading database ... 20%(Reading database ... 25%(Reading database ... 30%(Reading database ... 35%(Reading database ... 40%(Reading database ... 45%(Reading database ... 50%(Reading database ... 55%(Reading database ... 60%(Reading database ... 65%(Reading database ... 70%(Reading database ... 75%(Reading database ... 80%(Reading database ... 85%(Reading database ... 90%(Reading database ... 95%(Reading database ... 100%(Reading database ... 12292 files and directories currently installed.)
Preparing to unpack .../libgif-dev_5.2.2-1ubuntu1+safelibs1778011697_amd64.deb ...
Unpacking libgif-dev:amd64 (5.2.2-1ubuntu1+safelibs1778011697) over (5.2.2-1ubuntu1) ...
Preparing to unpack .../libgif7_5.2.2-1ubuntu1+safelibs1778011697_amd64.deb ...
Unpacking libgif7:amd64 (5.2.2-1ubuntu1+safelibs1778011697) over (5.2.2-1ubuntu1) ...
Setting up libgif7:amd64 (5.2.2-1ubuntu1+safelibs1778011697) ...
Setting up libgif-dev:amd64 (5.2.2-1ubuntu1+safelibs1778011697) ...
Processing triggers for libc-bin (2.39-0ubuntu8.7) ...
import sys
src, dst = sys.argv[1], sys.argv[2]
with open(src) as fh:
    lines = fh.readlines()
# Each row is "<index> <r> <g> <b>"; rewrite row 1.
parts = lines[1].split()
parts[1], parts[2], parts[3] = "11", "22", "33"
lines[1] = " ".join(parts) + "\n"
with open(dst, "w") as fh:
    fh.writelines(lines)
' /tmp/validator-tmp/cmap.txt /tmp/validator-tmp/cmap-mod.txt