From T110052 on integration-slave-precise1014, the job https://integration.wikimedia.org/ci/job/mediawiki-core-phplint/ times out after 10 minutes.
```
$ git init .
$ GIT_TRACE=1 time git -c core.askpass=true fetch --tags --progress git://zuul.eqiad.wmnet/mediawiki/core +refs/heads/*:refs/remotes/origin/*
trace: built-in: git 'fetch' '--tags' '--progress' 'git://zuul.eqiad.wmnet/mediawiki/core' '+refs/heads/*:refs/remotes/origin/*'
trace: run_command: 'rev-list' '--verify-objects' '--stdin' '--not' '--all' '--quiet'
remote: Counting objects: 578493, done.
remote: Compressing objects: 100% (105780/105780), done.
trace: run_command: 'index-pack' '--stdin' '-v' '--fix-thin' '--keep=fetch-pack 23014 on integration-slave-precise-1014' '--pack_header=2,578493'
trace: exec: 'git' 'index-pack' '--stdin' '-v' '--fix-thin' '--keep=fetch-pack 23014 on integration-slave-precise-1014' '--pack_header=2,578493'
trace: built-in: git 'index-pack' '--stdin' '-v' '--fix-thin' '--keep=fetch-pack 23014 on integration-slave-precise-1014' '--pack_header=2,578493'
remote: Total 578493 (delta 478370), reused 570493 (delta 470938)
Receiving objects: 100% (578493/578493), 310.03 MiB | 23.57 MiB/s, done.
Resolving deltas: 100% (478370/478370), done.
trace: run_command: 'rev-list' '--verify-objects' '--stdin' '--not' '--all'
trace: exec: 'git' 'rev-list' '--verify-objects' '--stdin' '--not' '--all'
trace: built-in: git 'rev-list' '--verify-objects' '--stdin' '--not' '--all'
At this point it takes roughly 10 minutes to write informations in the pack file :-/
667.51user 9.14system 11:29.68elapsed 98%CPU (0avgtext+0avgdata 1603184maxresident)k
0inputs+672856outputs (0major+2249250minor)pagefaults 0swaps
So 667 seconds or 11 minutes :-/
```
Maybe a shallow clone would speed it up or even git-archive since zuul.eqiad.wmnet should support it (unlike Gerrit).