It looks like that #3576 re-appeared in 2.1.2, we have the "operation not permitted" error on our CI builds after 2.1.2 has been released
- make: error: couldn't create cache file '/var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/xcrun_db-cZTiPW1A' (errno=Operation not permitted)
Here's the log for the same action that passes without problems on 2.1.1 (and older versions), and here is the action itself for your reference. Any suggestions on workarounds are very welcome!