12:29:26 brennen@inertia:~/code/wmf/mediawiki/core (547829-dev-prereq m0/u0) ✢ blubber .pipeline/blubber.yaml dev | docker build -t mediawiki -f - .

Sending build context to Docker daemon  692.5MB
Step 1/14 : FROM docker-registry.wikimedia.org/dev/stretch-php72-fpm-apache2
 ---> ddec13d48ccc
Step 2/14 : USER "root"
 ---> Using cache
 ---> 23960f3619a2
Step 3/14 : ENV HOME="/root"
 ---> Using cache
 ---> 734ff680614a
Step 4/14 : RUN groupadd -o -g "65533" -r "somebody" && useradd -o -m -d "/home/somebody" -r -g "somebody" -u "65533" "somebody" && mkdir -p "/var/www/html" && chown "65533":"65533" "/var/www/html" && mkdir -p "/opt/lib" && chown "65533":"65533" "/opt/lib"
 ---> Using cache
 ---> efa3512d8191
Step 5/14 : RUN groupadd -o -g "900" -r "runuser" && useradd -o -m -d "/home/runuser" -r -g "runuser" -u "900" "runuser"
 ---> Using cache
 ---> fcebee5599e8
Step 6/14 : USER "somebody"
 ---> Using cache
 ---> db3ade227066
Step 7/14 : ENV HOME="/home/somebody"
 ---> Using cache
 ---> 74064dbedbae
Step 8/14 : WORKDIR "/var/www/html"
 ---> Using cache
 ---> b363ce675c83
Step 9/14 : RUN mkdir -p ".pipeline/"
 ---> Using cache
 ---> b1f27032e010
Step 10/14 : COPY --chown=65533:65533 [".pipeline", "composer.json", "./"]
 ---> 08282954ed50
Step 11/14 : COPY --chown=65533:65533 [".pipeline/dev_prereq.sh", ".pipeline/"]
 ---> 51e7807fd5ec
Step 12/14 : RUN .pipeline/dev_prereq.sh
 ---> Running in d452e701f06c
Cloning into '/var/www/html/extensions/VisualEditor'...
Cloning into '/var/www/html/skins/Vector'...
Submodule 'lib/ve' (https://gerrit.wikimedia.org/r/VisualEditor/VisualEditor.git) registered for path 'lib/ve'
Cloning into '/var/www/html/extensions/VisualEditor/lib/ve'...
error: no such remote ref 8f850a718948833f5566db45d4c7f35614b78aba
Fetched in submodule path 'lib/ve', but it did not contain 8f850a718948833f5566db45d4c7f35614b78aba. Direct fetching of that commit failed.
The command '/bin/sh -c .pipeline/dev_prereq.sh' returned a non-zero code: 1
zsh: done       blubber .pipeline/blubber.yaml dev |
zsh: exit 1     docker build -t mediawiki -f - .