fetching https://github.com/acehreli/druntime.git thread-detach-stability (attempt: 1/3)
From https://github.com/acehreli/druntime
 * branch            thread-detach-stability -> FETCH_HEAD

merging FETCH_HEAD
CONFLICT (modify/delete): src/core/thread.d deleted in HEAD and modified in cd6355e9bccb6ba27ed51cfcf8978ed7881f0f7e. Version cd6355e9bccb6ba27ed51cfcf8978ed7881f0f7e of src/core/thread.d left in tree.
Auto-merging old/test/aa/Makefile
CONFLICT (content): Merge conflict in old/test/aa/Makefile
Automatic merge failed; fix conflicts and then commit the result.