Not reproduced with nor without extensions... (i.e. I noticed your reproducing recipe doesn't involve 'make' to build the C extensions but that doesn't seem relevant here).
I would guess that a trusty host may explain the difference (I'm still on saucy :-/)
Not reproduced with nor without extensions... (i.e. I noticed your reproducing recipe doesn't involve 'make' to build the C extensions but that doesn't seem relevant here).
I would guess that a trusty host may explain the difference (I'm still on saucy :-/)