macos-latest = 15 not working

[tdhock]

this job succeeded https://github.com/tdhock/atime/actions/runs/17248937513/job/48945895248
this job failed https://github.com/tdhock/atime/actions/runs/17677000832/job/50241516407
this actions/runner-images#12520 says we can use macos-14 and to post an issue

[tdhock]

I changed runner to macos-14 on main and it works, https://github.com/tdhock/atime/actions/runs/17677677789/job/50243771631
so the issue is definitely with macos-latest=15

[tdhock]

we can use macos-14 as a work-around until they fix actions/runner-images#13012

[tdhock]

using this branch #96 I get more info about the error https://github.com/tdhock/debug-atime-action/actions/runs/17737466389/job/50402822977

installing to /Users/runner/work/_temp/Library/00LOCK-data.table.60a01fa65191c44d7997de1843e9a1dfe5be9f72/00new/data.table.60a01fa65191c44d7997de1843e9a1dfe5be9f72/libs
** R
** inst
** byte-compile and prepare package for lazy loading
** help
*** installing help indices
** building package indices
** installing vignettes
** testing if installed package can be loaded from temporary location
ERROR: loading failed
Error: Error: package or namespace load failed for ‘data.table.60a01fa65191c44d7997de1843e9a1dfe5be9f72’ in dyn.load(file, DLLpath = DLLpath, ...):
* removing ‘/Users/runner/work/_temp/Library/data.table.60a01fa65191c44d7997de1843e9a1dfe5be9f72’
 unable to load shared object '/Users/runner/work/_temp/Library/00LOCK-data.table.60a01fa65191c44d7997de1843e9a1dfe5be9f72/00new/data.table.60a01fa65191c44d7997de1843e9a1dfe5be9f72/libs/data_table_60a01fa65191c44d7997de1843e9a1dfe5be9f72.so':
  dlopen(/Users/runner/work/_temp/Library/00LOCK-data.table.60a01fa65191c44d7997de1843e9a1dfe5be9f72/00new/data.table.60a01fa65191c44d7997de1843e9a1dfe5be9f72/libs/data_table_60a01fa65191c44d7997de1843e9a1dfe5be9f72.so, 0x0006): symbol not found in flat namespace '___kmpc_dispatch_deinit'
Error: Error: loading failed
Execution halted

This is the same error I am getting in a simplified testing pipeline https://github.com/tdhock/atime/actions/runs/17737535908/job/50403050289

this suggests there may be an error in data table config?

[tdhock]

what is ___kmpc_dispatch_deinit?