Jenkins build failed on "No space left on device"

https://builds.apache.org/job/beam_PreCommit_Portable_Python_Commit/4382/console

```
00:02:19.095 java.lang.IllegalStateException: java.io.IOException: No space left on device
00:02:19.095 at com.gradle.scan.a.e.b.flush(SourceFile:233)
00:02:19.095 at com.gradle.scan.a.e.b.close(SourceFile:244)
00:02:19.095 at com.gradle.scan.a.e.c.close(SourceFile:68)
00:02:19.095 at com.gradle.scan.plugin.internal.k.a(SourceFile:88)
00:02:19.095 at com.gradle.scan.plugin.internal.e.c.c.b(SourceFile:121)
00:02:19.095 at com.gradle.scan.plugin.internal.e.c.c.a(SourceFile:113)
00:02:19.095 at com.gradle.scan.plugin.internal.o.a$a.a(SourceFile:30)
00:02:19.095 at com.gradle.scan.plugin.internal.o.a$a.a(SourceFile:19)
00:02:19.095 at com.gradle.scan.plugin.internal.o.a.c(SourceFile:60)
00:02:19.095 Caused by: java.io.IOException: No space left on device
00:02:19.095 at com.gradle.scan.a.e.b.flush(SourceFile:231)
00:02:19.095 ... 8 more
```

Looks like there is not enough space (disk?) on Jenkins worker for a build. If I remember correctly, a worker will run max of two build jobs concurrently. Not sure if it's caused by huge resource utilization in runtime, parallel execution or resource leak. For the third case, we should cleanup the worker and find out the leak place.