The TlS cert for kernel.org has a validity period starting on 10/10/2016, so it was likely changed in the last ~week. I'm guessing the issue is with not having up-to-date intermediate certs. However, I can't reproduce the failure in a centos 6 container.

$ docker run -ti centos:6

[root@556bc5336a8b /]# GIT_VERSION=${GIT_VERSION:-2.2.2} 

[root@556bc5336a8b /]#  GIT_BASE_URL="https://www.kernel.org/pub/software/scm/git"

[root@556bc5336a8b /]# curl -# -L -O ${GIT_BASE_URL}/git-${GIT_VERSION}.tar.gz

######################################################################## 100.0%

The issue seems to have resolved itself on the jenkins build slaves. It appears to be now only present under travis-ci. My suspicion is that the initial issue was with the new kernel.org cert, which was fixed at some point. The logs on the jenkins el7-1 slave show that the certs db was updated in July.

47:Jul 10 18:46:00 Updated: ca-certificates-2015.2.4-70.0.el7_1.noarch

I've opened an issue with travis-ci: https://github.com/travis-ci/travis-ci/issues/6744

bin/deploy is working except in Travis, and the bug report with Travis provided an answer for that, to be addressed next cycle.

The build failures on travis seem to have evaporated as of this morning. Presumably, a new travis container image has been cut.