Mac_android microbenchmarks failing, "type 'Null' is not a subtype of type 'String'" at (package:dds/src/isolate_manager.dart:236:32) #111482
Description
Example: https://ci.chromium.org/ui/p/flutter/builders/prod/Mac_android%20microbenchmarks/7106/overview
It looks like it is failing due to not finding the Xcode command line tools?
[microbenchmarks] [STDOUT] [STDOUT] [ ] executing: xcrun xcodebuild -version
[microbenchmarks] [STDOUT] [STDOUT] [ +6 ms] Exit code 1 from: xcrun xcodebuild -version
[microbenchmarks] [STDOUT] [STDOUT] [ ] xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun
The stderr log also reports a null safety runtime error, but there is no backtrace, so it is not useful.
Routing to the infra ticket queue in case the issue is missing Xcode command line tools.