Migrate project to Gradle

1 job for gradle_migration in 31 seconds (queued for 3 seconds)
Name Stage Failure
build Build
Skipping Git submodules setup
Checking cache for default...
Runtime platform arch=amd64 os=linux pid=9900 revision=8bb608ff version=11.7.0
No URL provided, cache will be not downloaded from shared cache server. Instead a local version of cache will be extracted.

Successfully extracted cache
$ export GRADLE_USER_HOME=`pwd`/.gradle
$ ./gradlew wrapper --gradle-version=5.6.4 --distribution-type=bin
bash: line 84: ./gradlew: Permission denied
ERROR: Job failed: exit status 1