Vendor things

third-party/vendor/humantime/README.md

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+Human Time
+==========
+
+**Status: stable**
+
+[Documentation](https://docs.rs/humantime) |
+[Github](https://github.com/tailhook/humantime) |
+[Crate](https://crates.io/crates/humantime)
+
+
+Features:
+
+* Parses durations in free form like `15days 2min 2s`
+* Formats durations in similar form `2years 2min 12us`
+* Parses and formats timestamp in `rfc3339` format: `2018-01-01T12:53:00Z`
+* Parses timestamps in a weaker format: `2018-01-01 12:53:00`
+
+Timestamp parsing/formatting is super-fast because format is basically
+fixed.
+
+Here are some micro-benchmarks:
+
+```
+test result: ok. 0 passed; 0 failed; 26 ignored; 0 measured; 0 filtered out
+
+     Running target/release/deps/datetime_format-8facb4ac832d9770
+
+running 2 tests
+test rfc3339_chrono            ... bench:         737 ns/iter (+/- 37)
+test rfc3339_humantime_seconds ... bench:          73 ns/iter (+/- 2)
+
+test result: ok. 0 passed; 0 failed; 0 ignored; 2 measured; 0 filtered out
+
+     Running target/release/deps/datetime_parse-342628f877d7867c
+
+running 6 tests
+test datetime_utc_parse_millis  ... bench:         228 ns/iter (+/- 11)
+test datetime_utc_parse_nanos   ... bench:         236 ns/iter (+/- 10)
+test datetime_utc_parse_seconds ... bench:         204 ns/iter (+/- 18)
+test rfc3339_humantime_millis   ... bench:          28 ns/iter (+/- 1)
+test rfc3339_humantime_nanos    ... bench:          36 ns/iter (+/- 2)
+test rfc3339_humantime_seconds  ... bench:          24 ns/iter (+/- 1)
+
+test result: ok. 0 passed; 0 failed; 0 ignored; 6 measured; 0 filtered out
+```
+
+See [humantime-serde] for serde integration (previous crate [serde-humantime] looks unmaintained).
+
+[serde-humantime]: https://docs.rs/serde-humantime/0.1.1/serde_humantime/
+[humantime-serde]: https://docs.rs/humantime-serde
+
+License
+=======
+
+Licensed under either of
+
+* Apache License, Version 2.0, (./LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
+* MIT license (./LICENSE-MIT or http://opensource.org/licenses/MIT)
+
+at your option.
+
+Contribution
+------------
+
+Unless you explicitly state otherwise, any contribution intentionally
+submitted for inclusion in the work by you, as defined in the Apache-2.0
+license, shall be dual licensed as above, without any additional terms or
+conditions.