hyperium/hyper — pull request #95 by jamwt (2014-11-04 02:34:53+00:00)
Title: Remove collections trait implementations.

Rust has removed them due to collections reform RFC:

RFC: https://github.com/rust-lang/rfcs/pull/235/files
Commit:
https://github.com/rust-lang/rust/commit/21ac985af44f4e2470ef6f4c0eb4d72daf5a6497