Test with raw multiline string is failing on Windows

[ordian]

        thread 'test_raw_multiline_string' panicked at 'assertion failed: `(left == right)`
  left: `Object({"firstnl": Object({"type": String("string"), "value": String("This string has a \' quote character.")}), "multiline": Object({"type": String("string"), "value": String("This string\nhas \' a quote character\nand more than\none newline\nin it.")}), "oneline": Object({"type": String("string"), "value": String("This string has a \' quote character.")})})`,
 right: `Object({"firstnl": Object({"type": String("string"), "value": String("This string has a \' quote character.")}), "multiline": Object({"type": String("string"), "value": String("This string\r\nhas \' a quote character\r\nand more than\r\none newline\r\nin it.")}), "oneline": Object({"type": String("string"), "value": String("This string has a \' quote character.")})})`', tests\test_valid.rs:54:4
note: Run with `RUST_BACKTRACE=1` for a backtrace.

reported by @Boddlnagg in comment

[Boddlnagg]

Copying my comment from the other thread:

Ah, the newline thing might be related to how git checks out the files.

Specifically, I have the git autocrlf setting enabled, and AppVeyor might not use that (which would surprise me, though), leading to different encoding of line endings on checkout.