test_char is failing on Fedora

[ignatenkobrain]

---- test_char stdout ----
thread 'test_char' panicked at 'assertion failed: `(left == right)`
  left: `"\'\\u{0}\' \'#\' \'\"\' \'\\\'\' \'\\n\' \'\\u{2764}\'"`,
 right: `"\'\\u{0}\' \'#\' \'\"\' \'\\\'\' \'\\n\' \'❤\'"`', tests/types.rs:70:5
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

Not sure what other info you need.

[Goncalerta]

I'm not sure what is causing this.

Does the same thing happen with the quote crate?

[ignatenkobrain]

No, the tests from quote crate do not fail for us in the same environment.

[Goncalerta]

That is weird. The test interpolates #heart; on the other hand, interpolate_to_tokens_ident just calls append_to_tokens, which calls the same trait as the original crate.

I'm gonna temporarily remove the heart test, so it doesn't block you until the problem is understood.

[ignatenkobrain]

No need to disable it, I am skipping it when packaging.

[Goncalerta]

It was also making travis mysteriously fail since last commit (although it still works fine on my machine and the only change in that commit was the new license files, which have no impact on this). So it is indeed a very strange behavior.