https://build.chromium.org/p/chromium.fyi/builders/Linux%20ARM/builds/42365

has this error:
https://luci-logdog.appspot.com/v/?s=chromium%2Fbb%2Fchromium.fyi%2FLinux_ARM%2F42365%2F%2B%2Frecipes%2Fsteps%2Farchive_build%2F0%2Fstdout


Adding /mnt/data/b/c/chrome_staging/content-shell.zip to be archived.
chromium_utils.CopyFileToDir(/mnt/data/b/c/builder/Linux_ARM/src/out/Release/remoting-webapp.v2.zip, /mnt/data/b/c/chrome_staging/, dest_fn=remoting-webapp.v2.zip)
Traceback (most recent call last):
  File "/mnt/data/b/rr/tmpcMsPFP/rw/scripts/slave/chromium/archive_build.py", line 663, in <module>
    sys.exit(main())
  File "/mnt/data/b/rr/tmpcMsPFP/rw/scripts/slave/chromium/archive_build.py", line 659, in main
    return s.ArchiveBuild()
  File "/mnt/data/b/rr/tmpcMsPFP/rw/scripts/slave/chromium/archive_build.py", line 480, in ArchiveBuild
    os.path.join(self._staging_dir, stage_subdir), dest_fn=stage_fn)
  File "/mnt/data/b/rr/tmpcMsPFP/rw/scripts/common/chromium_utils.py", line 583, in CopyFileToDir
    raise PathNotFound('Unable to find file %s' % src_path)
common.chromium_utils.PathNotFound: Unable to find file /mnt/data/b/c/builder/Linux_ARM/src/out/Release/remoting-webapp.v2.zip

I guess it's because remoting-webapp.v2.zip is listed in https://cs.chromium.org/chromium/src/chrome/tools/build/linux/FILES.cfg?rcl=b8edd52416f1e93bf2330543f5b888d2dadc9e14&l=172 but is not built as part of the targets the bot is building (nacl_helper_nonsfi_unittests nacl_loader_unittests sandbox_linux_unittests).

Ideally the bot should build "all" or at least "chrome" or some bigger target.
I noticed this when I was (finally) working on setting up new bots as part of issue = 708104 .