Control: forwarded -1 https://github.com/pydata/xarray/issues/7079 (actually found independently)
The above upstream report suggests that this is because netcdf-python is no longer thread-safe.
The 3 random-autopkgtest-fail bugs (this, #1064326 and #1064370) together seem to be more common in pandas 2. It's possible that some of them are actually the same underlying bug.
