vklein@tuono:~/odk/sage$ sage -t --long src/sage/combinat/root_system/weyl_group.py 
too many failed tests, not using stored timings
Running doctests with ID 2019-06-11-11-15-20-edaa5a63.
Git branch: HEAD
Using --optional=build,cmake,dochtml,memlimit,mpir,primecount,python2,sage
Doctesting 1 file.
sage -t --long src/sage/combinat/root_system/weyl_group.py
**********************************************************************
File "src/sage/combinat/root_system/weyl_group.py", line 1128, in sage.combinat.root_system.weyl_group.WeylGroup_permutation._coerce_map_from_
Failed example:
    W.has_coerce_map_from(W5)
Expected:
    False
Got:
    True
...
File "src/sage/combinat/root_system/weyl_group.py", line 1157, in sage.combinat.root_system.weyl_group.WeylGroup_permutation.simple_reflection
Failed example:
    **with  W = WeylGroup(['A',4], implementation="permutation")**
    W.simple_reflections()
Expected:
    Finite family {1: (1,11)(2,6)(7,9)(8,10)(12,16)(17,19)(18,20),
                   2: (1,6)(2,12)(3,7)(5,8)(11,16)(13,17)(15,18),
                   3: (2,7)(3,13)(4,5)(6,9)(12,17)(14,15)(16,19),
                   4: (3,5)(4,14)(7,8)(9,10)(13,15)(17,18)(19,20)}
Got:
    Finite family {1: (1,11)(2,5)(6,8)(9,10)(12,15)(16,18)(19,20), 
                   2: (1,5)(2,12)(3,6)(7,9)(11,15)(13,16)(17,19),
                   3: (2,6)(3,13)(4,7)(5,8)(12,16)(14,17)(15,18),
                   4: (3,7)(4,14)(6,9)(8,10)(13,17)(16,19)(18,20)}