$ git clone -n https://src.fedoraproject.org/rpms/rust-tokio-timer.git /var/lib/mock/f41-build-side-1-3134957-39764/root/chroot_tmpdir/scmroot/rust-tokio-timer
Cloning into '/var/lib/mock/f41-build-side-1-3134957-39764/root/chroot_tmpdir/scmroot/rust-tokio-timer'...
$ git fetch origin cb4a2c30b4208ff2cc48490661749bd830e68973:KOJI_FETCH_HEAD
fatal: unable to access 'https://src.fedoraproject.org/rpms/rust-tokio-timer.git/': OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to src.fedoraproject.org:443 
$ git reset --hard cb4a2c30b4208ff2cc48490661749bd830e68973
HEAD is now at cb4a2c3 no longer needed