[CI] Infrastructure: Provision Xcode fails on bot VSM-XAM-08.Tahoe.arm64 (no Xcode in /Applications)

[rolfbjarne]

Infrastructure Failure Report (automated CI post-mortem)

Category: Infrastructure — bot-specific (Xcode provisioning)
Bot: VSM-XAM-08.Tahoe.arm64
Period: 2026-07-03

Summary

The Provision Xcode step fails on the macOS bot VSM-XAM-08.Tahoe.arm64 because there is no Xcode installed in /Applications:

[VRB] Exec[0]: /usr/bin/arch -arm64 bash -c "ls -lad /Applications/Xcode*"
[VRB] Exec[0] exited 1
Unhandled exception. Xamarin.Provisioning.Exec+ExitException: bash terminated with exit code 1
   at Submission#0.ListXcodes()
   at Submission#0.ProvisionXcode()
…
##[error]Bash exited with code '2'.

ls -lad /Applications/Xcode* returning exit code 1 means the glob matched nothing — the bot has no Xcode*.app under /Applications, so provisioning aborts before any Xcode can be selected. This is a machine state problem specific to VSM-XAM-08, not a PR problem — it reserved this bot in the Reserve macOS bot for tests stage and immediately failed provisioning.

Occurrences

PR	Build	Date	Bot	Direct link
#25910	14563758	2026-07-03	VSM-XAM-08.Tahoe.arm64	logs
#25919	14564462	2026-07-03	VSM-XAM-08.Tahoe.arm64	logs
#25919	14563897	2026-07-03	VSM-XAM-08.Tahoe.arm64	logs

Total: 3 builds across 2 unrelated PRs, all on the same bot VSM-XAM-08.Tahoe.arm64.

Suggested action

Inspect / reimage VSM-XAM-08.Tahoe.arm64 — it appears to be missing its Xcode installation(s). Until it's fixed it should probably be taken out of the pool, since every job that reserves it will fail Xcode provisioning.

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This issue was automatically generated by CI post-mortem analysis.