Squashed 'rosettarobot/test/github-rust-rosetta/' content from commit 53177b7

git-subtree-dir: rosettarobot/test/github-rust-rosetta
git-subtree-split: 53177b798219a72c224a701d198fc8063e4be0ae
Merge commit 'd1c6457b37f4ab38d096ce6a0f71b62fd52f60d0' as 'rosettarobot/test/github-rust-rosetta'
add extract_url tests