Tracking issue for RFC 517: IO reform

[huonw]

Tracking for rust-lang/rfcs#517

Areas that still need RFC amendments:

• Timeouts
• stdin/stdout/stderr - Amend RFC 517: Add material for stdio rfcs#899, std: Stabilize the io module #23292
• TempDir - std: Stabilize the fs module #23081
• timers/sleeping (probably just a sleep function) - std: Implement thread::sleep #23330
• write! macro (WONTFIX)
• make the new io modules all hook into each other (std::env use new paths) std: Move std::env to the new I/O APIs #22727
• ErrorKind - std: Stabilize the io module #23292, std: Stablize io::ErrorKind #23430
• exit statuses

Areas that need more scrutiny before stabilization

• Various std::os::platform extensions -- no clear plan for these yet std: Stabilize portions of std::os::$platform #23353
• AsRawFd and friends -- need a FromRawFd etc

[aturon]

Note: this is a metabug that will link to individual tracking issues as each piece of the RFC is separately accepted.

[aturon]

cc @alexcrichton

[aturon]

I've added some tracking information for smaller details that haven't been addressed yet.

[aturon]

Nominating for 1.0-beta P-backcompat-libs -- this should be the last issue standing for IO reform.

[pnkfelix]

1.0 beta P-backcompat-libs