Breakage with recent nightly

[alexbool]

   Compiling itertools v0.4.13
/Users/alexbool/.cargo/registry/src/github.com-1ecc6299db9ec823/itertools-0.4.13/src/free.rs:218:1: 224:2 error: type mismatch resolving `<<J as std::iter::IntoIterator>::IntoIter as std::iter::Iterator>::Item == <I as std::iter::IntoIterator>::Item`:
 expected type parameter,
    found associated type [E0271]
/Users/alexbool/.cargo/registry/src/github.com-1ecc6299db9ec823/itertools-0.4.13/src/free.rs:218 pub fn merge<I, J>(i: I, j: J) -> Merge<I::IntoIter, J::IntoIter>
                                                                                                 ^
/Users/alexbool/.cargo/registry/src/github.com-1ecc6299db9ec823/itertools-0.4.13/src/free.rs:218:1: 224:2 help: run `rustc --explain E0271` to see a detailed explanation
/Users/alexbool/.cargo/registry/src/github.com-1ecc6299db9ec823/itertools-0.4.13/src/free.rs:218:1: 224:2 note: required by `adaptors::Merge`
error: aborting due to previous error
Build failed, waiting for other jobs to finish...
error: Could not compile `itertools`.

alexbool@alexbool-osx ~/D/I/i/r/portfolio> rustc -vV
rustc 1.10.0-nightly (22ac88f1a 2016-05-11)
binary: rustc
commit-hash: 22ac88f1a47a82195a49fbff3cf24a2c395d7a81
commit-date: 2016-05-11
host: x86_64-apple-darwin
release: 1.10.0-nightly

[alexbool]

Whoops, seems like already reported rust-lang/rust#33587

[bluss]

Thank you for reporting it here. I don't see a way to work around it without breaking changes, so unsure if I can do anything but hope that it the regression is fixed soon.

[bluss]

Workaround in itertools version 0.4.14.

[alexbool]

Thank you so much!

[bluss]

Oops, I managed to remove itertools::free::chain in the workaround. Was a bit too quick. It won't hurt most, but I'll fix that now too.