https://github.com/matklad/libsyntax2/pull/68#issuecomment-420103981
https://app.bors.tech/repositories/1530/log#batch-10400
Based on the information as I processed it, all CI checks that Bors is configured to be listening to did report a success before Bors reported a timeout. CI passes in less than 10 minutes on both Travis and AppVeyor.