Link to Build:
-------------
https://uberchromegw.corp.google.com/i/official.desktop.continuous/builders/win%20trunk/builds/49994
https://uberchromegw.corp.google.com/i/official.desktop.continuous/builders/win%20trunk/builds/49995
https://uberchromegw.corp.google.com/i/official.desktop.continuous/builders/win%20trunk/builds/50012
https://uberchromegw.corp.google.com/i/official.desktop.continuous/builders/win%20trunk/builds/50013

Link to Logs:
-------------
https://uberchromegw.corp.google.com/i/official.desktop.continuous/builders/win%20trunk/builds/49994/steps/steps/logs/stdio
https://uberchromegw.corp.google.com/i/official.desktop.continuous/builders/win%20trunk/builds/49995/steps/steps/logs/stdio
https://uberchromegw.corp.google.com/i/official.desktop.continuous/builders/win%20trunk/builds/50012/steps/steps/logs/stdio
https://uberchromegw.corp.google.com/i/official.desktop.continuous/builders/win%20trunk/builds/50013/steps/steps/logs/stdio


Error from the log:
===================
WARNING:root:Revision d6020a7ef29d3f7fb77d16a1cd6b32c7b2f09dc2 is not available: Git "rev-parse" failed: 
INFO:root:Running: ('git.bat', '-C', 'C:\\b\\build_internal\\scripts\\slave\\.recipe_deps\\recipe_engine', 'fetch')
INFO:root:Running: ('git.bat', '-C', 'C:\\b\\build_internal\\scripts\\slave\\.recipe_deps\\recipe_engine', 'reset', '-q', '--hard', 'd6020a7ef29d3f7fb77d16a1cd6b32c7b2f09dc2')
INFO:root:Using C:\b\build\slave\win_trunk\build as work directory


INFO:root:Running ['C:\\b\\depot_tools\\python276_bin\\python.exe', '-u', 'C:\\b\\build_internal\\scripts\\slave\\.recipe_deps\\recipe_engine\\recipes.py', '--package', 'C:\\b\\build_internal\\scripts\\slave\\infra\\config\\recipes.cfg', '--verbose', 'run', '--workdir=C:\\b\\build\\slave\\win_trunk\\build', '--properties-file=C:\\b\\build\\slave\\win_trunk\\.recipe_runtime\\tmpqeikyu\\recipe_properties.json', '--output-result-json', 'C:\\b\\build\\slave\\win_trunk\\.recipe_runtime\\tmpqeikyu\\recipe_result.json', 'chrome']
INFO:root:Freshening repository https://chromium.googlesource.com/chromium/tools/build.git in C:\b\build_internal\scripts\slave\.recipe_deps\build
INFO:root:Running: ('git.bat', '-C', 'C:\\b\\build_internal\\scripts\\slave\\.recipe_deps\\build', 'config', 'remote.origin.url', 'https://chromium.googlesource.com/chromium/tools/build.git')
INFO:root:Running: ('git.bat', '-C', 'C:\\b\\build_internal\\scripts\\slave\\.recipe_deps\\build', 'rev-parse', '-q', '--verify', 'dfb32f58ab42babb99df23e760db5840c2bb9518^{commit}')
WARNING:root:Revision dfb32f58ab42babb99df23e760db5840c2bb9518 is not available: Git "rev-parse" failed: 

scheib@ could you please look into this. thank you