attempt to upgrade OSX runner and use valgrind with it
Go ahead and try to upgrade OSX runner to mojave.
If it works, try making valgrind a requirement in the CI instructions. Then track down any memory errors that valgrind catches.
Go ahead and try to upgrade OSX runner to mojave.
If it works, try making valgrind a requirement in the CI instructions. Then track down any memory errors that valgrind catches.