Filter out more expected errors from sccache log (#56281)
Summary:
This PR extends `.jenkins/pytorch/print_sccache_log.py` to filter out a distracting "error" message that walterddr came across while debugging failures in https://github.com/pytorch/pytorch/issues/55176:
```
=================== sccache compilation log ===================
ERROR 2021-04-05T15:44:18Z: sccache::server: Compilation failed: Output { status: ExitStatus(ExitStatus(256)), stdout: "", stderr: "/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp: In function ‘int main()’:\n/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp:2:23: error: expected ‘;’ before ‘}’ token\n int main() { return 0 }\n ^\n" }
```
Pull Request resolved: https://github.com/pytorch/pytorch/pull/56281
Test Plan: TODO (reviewers: is there an easy way to test this?)
Reviewed By: walterddr
Differential Revision: D27826064
Pulled By: samestep
fbshipit-source-id: 7322a830c1246820a5b2b7bbeaa4697ebd13b617
