Crates.io should output dates with timezone info in JSON

[dtolnay]

I just published a new version of one of my crates and the page shows "Last Updated: in 7 hours".

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[Mark-Simulacrum]

I'd guess this is timezone related.

[carols10cents]

@sgrif i thought diesel was setting UTC for everything?

[carols10cents]

API response for https://crates.io/api/v1/crates/isatty is currently showing:

{"crate":{"id":"isatty","name":"isatty","updated_at":"2017-10-11T17:25:24.150309"

Are you in UTC-8, @dtolnay ? Maybe this is a frontend problem where it's interpreting no timezone as local timezone and should be assuming UTC instead....

[imp]

It looks like #1081 has converted every Timespec into NaiveDateTime, which lacks timezone information. I think it is better to stick to DateTime<Utc> to keep the timestamps well ordered.

[imp]

This issue affects other tools that use crates.io API, such as cargo-info. It expects the timestamps to have timezone data. See below - the RELEASED field is blank:

cargo info cargo

Crate:          cargo
Version:        0.22.0
Description:    Cargo, a package manager for Rust.

Downloads:      47417
Homepage:       https://crates.io
Documentation:  https://docs.rs/cargo
Repository:     https://github.com/rust-lang/cargo
Last updated:
Version history:

  VERSION    RELEASED        DOWNLOADS

  0.22.0                     19
  0.21.1                     1062
  0.21.0                     230
  0.20.0                     1681
  0.19.0                     3721

  ... use -VV to show all 22 versions