Nightly builds are not always using the latest git commits for building
By accident I looked at today's (8/5/2014) nightlies which showed the following commits used:
50893291621658f355bc5b4d450a8d06a563053d zlib.git
641c1584f7be8de88d3c58eae96c5c022a4870d1 tor.git
4f320dc92e59e35e318a32ffb67a91ffa6ccb439 tor-browser.git
2a8e082315364149fd64129bc56e6f861132a5d4 torbutton.git
6cf204d64cb8829ca4a7a8d3bc8d601ff4cf534d tor-launcher.git
21d392a190fbbde2eaf20e13350b0bedd49557aa https-everywhere.git
00133b8741eb8ca34fc8153d344c7c54a5e3fae9 tbb-windows-installer.git
9418eaa1854320b57f40e29ec5bbc4f5717ecd58 mingw-w64.git
ae72871ea2e1c731ee34bba27a47fcce1b79786e gitian-builder.git
f8f36e38ec419457d38ed4815aed802c327c30ae tor-browser-bundle.git
The nightlies should use an up-to-date master branch which is clearly not working (look e.g. at tor, https-everywhere and torbutton).