*** Running test-ast-formats
Traceback (most recent call last):
  File "/home/uke/oil/bin/oils_for_unix.py", line 27, in <module>
    from core import shell
  File "/home/uke/oil/core/shell.py", line 40, in <module>
    from builtin import dirs_osh
  File "/home/uke/oil/builtin/dirs_osh.py", line 16, in <module>
    from core import value
ImportError: cannot import name value
FAIL  test-ast-formats