PyPy 3.5 v6.0.0: inconsistent OpenSSL bindings

bug
build-env
python

#1

So there’s two xenial jobs with PyPy v6.0.0 set up. But tests are behaving inconsistently.

Turns out, that PyPy 2.7 v6.0.0 is linked against OpenSSL 1.1, while

pypy2.7-6.0 is not installed; attempting download
Downloading archive: https://s3.amazonaws.com/travis-python-archives/binaries/ubuntu/16.04/x86_64/pypy2.7-6.0.tar.bz2
$ curl -sSf -o pypy2.7-6.0.tar.bz2 ${archive_url}
$ sudo tar xjf pypy2.7-6.0.tar.bz2 --directory /

$ python --version
Python 2.7.13 (ab0b9caf307db6592905a80b8faffd69b39005b8, Apr 30 2018, 08:21:35)
[PyPy 6.0.0 with GCC 7.2.0]

$ python -c 'import ssl; print("\nOPENSSL_VERSION: " + ssl.OPENSSL_VERSION + "\nOPENSSL_VERSION_INFO: " + repr(ssl.OPENSSL_VERSION_INFO) + "\nOPENSSL_VERSION_NUMBER: " + repr(ssl.OPENSSL_VERSION_NUMBER))'
OPENSSL_VERSION: OpenSSL 1.1.0h 27 Mar 2018
OPENSSL_VERSION_INFO: (1, 1, 0, 8, 15)
OPENSSL_VERSION_NUMBER: 269484175

(https://travis-ci.org/cherrypy/cheroot/jobs/473814367)

pypy3.5-6.0 is not installed; attempting download
Downloading archive: https://s3.amazonaws.com/travis-python-archives/binaries/ubuntu/16.04/x86_64/pypy3.5-6.0.tar.bz2
$ curl -sSf -o pypy3.5-6.0.tar.bz2 ${archive_url}
$ sudo tar xjf pypy3.5-6.0.tar.bz2 --directory /

$ python --version
Python 3.5.3 (fdd60ed87e94, Apr 24 2018, 06:10:04)
[PyPy 6.0.0 with GCC 6.2.0 20160901]

$ python -c 'import ssl; print("\nOPENSSL_VERSION: " + ssl.OPENSSL_VERSION + "\nOPENSSL_VERSION_INFO: " + repr(ssl.OPENSSL_VERSION_INFO) + "\nOPENSSL_VERSION_NUMBER: " + repr(ssl.OPENSSL_VERSION_NUMBER))'
OPENSSL_VERSION: OpenSSL 1.0.1f 6 Jan 2014
OPENSSL_VERSION_INFO: (1, 0, 1, 6, 15)
OPENSSL_VERSION_NUMBER: 268439663

(https://travis-ci.org/cherrypy/cheroot/jobs/473814368)

I think that they both should have the same OpenSSL backend version to avoid inconsistencies and unpleasant side-effects.

cc @BanzaiMan