webgl job is failing with 'System.ComponentModel.Win32Exception (2): No such file or directory'

https://gitlab.com/gableroux/unity3d-gitlab-ci-example/ on v1.1.0 is now using new docker images from https://github.com/unity-ci/docker and these images seem to fail on webgl right now.

Building build.bc with EmscriptenToolChain
    Output directory: /builds/gableroux/unity3d-gitlab-ci-example/Temp/StagingArea/Data/Native
    Cache directory: /builds/gableroux/unity3d-gitlab-ci-example/Library/il2cpp_cache
il2cpp.exe didn't catch exception: System.AggregateException: One or more errors occurred. (No such file or directory) (No such file or directory)
 ---> System.ComponentModel.Win32Exception (2): No such file or directory