"failed to remove old deployment" results in busy loop

[alecthomas]

Saw a weird error when starting ftl dev without --recreate, and then ftl seemed to busy loop trying to allocate ports:

error:time:localScaling: Runner failed: failed to remove old deployment: unlinkat /Users/alec/Library/Caches/ftl-runner/runner2/deployments/time/dpl-time-r4mrnsiwffhbs0t/ftl/temp.txt: permission denied: failed to remove old deployment: unlinkat /Users/alec/Library/Caches/ftl-runner/runner2/deployments/time/dpl-time-r4mrnsiwffhbs0t/ftl/temp.txt: permission denied

No idea what temp.txt is or why it couldn't be removed.

Attached profile here.

Screenshot of profile:

Must be some MacOS thing creating the temp.txt files, perhaps to do with GCing the cache directory.

🐚 ~/dev/ftl $ ls -l /Users/alec/Library/Caches/ftl-runner/runner2/deployments/time/dpl-time-r4mrnsiwffhbs0t/ftl/temp.txt
-rw-r--r--  1 root  staff  0 26 Jul 14:49 /Users/alec/Library/Caches/ftl-runner/runner2/deployments/time/dpl-time-r4mrnsiwffhbs0t/ftl/temp.txt

But FTL still shouldn't go into a busy loop if this happens :. It seems to happen after suspend/resume.