Compiling libzmq v0.2.1 (C:\Dev\libzmq-rs\libzmq)
error[E0433]: failed to resolve: could not find `unix` in `os`
  --> libzmq\src\poll.rs:20:5
   |
20 |     unix::io::{AsRawFd, RawFd},
   |     ^^^^ could not find `unix` in `os`

error[E0412]: cannot find type `RawFd` in this scope
   --> libzmq\src\poll.rs:131:8
    |
131 |     Fd(RawFd),
    |        ^^^^^ not found in this scope

error[E0405]: cannot find trait `AsRawFd` in this scope
   --> libzmq\src\poll.rs:136:8
    |
136 |     T: AsRawFd,
    |        ^^^^^^^ not found in this scope

error[E0412]: cannot find type `RawFd` in this scope
   --> libzmq\src\poll.rs:500:13
    |
500 |         fd: RawFd,
    |             ^^^^^ not found in this scope

error[E0412]: cannot find type `RawFd` in this scope
   --> libzmq\src\poll.rs:607:33
    |
607 |     fn remove_fd(&mut self, fd: RawFd) -> Result<(), Error> {
    |                                 ^^^^^ not found in this scope

error[E0412]: cannot find type `RawFd` in this scope
   --> libzmq\src\poll.rs:681:33
    |
681 |     fn modify_fd(&mut self, fd: RawFd, trigger: Trigger) -> Result<(), Error> {
    |                                 ^^^^^ not found in this scope

error: aborting due to 6 previous errors