Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

4 files changed, 1206 insertions, 0 deletions

diff --git a/vendor/humantime/src/date.rs b/vendor/humantime/src/date.rs
new file mode 100644
index 000000000..0afe1f250
--- /dev/null
+++ b/vendor/humantime/src/date.rs
@@ -0,0 +1,616 @@
+use std::error::Error as StdError;
+use std::fmt;
+use std::str;
+use std::time::{SystemTime, Duration, UNIX_EPOCH};
+
+#[cfg(target_os="cloudabi")]
+mod max {
+    pub const SECONDS: u64 = ::std::u64::MAX / 1_000_000_000;
+    #[allow(unused)]
+    pub const TIMESTAMP: &'static str = "2554-07-21T23:34:33Z";
+}
+#[cfg(all(
+    target_pointer_width="32",
+    not(target_os="cloudabi"),
+    not(target_os="windows"),
+    not(all(target_arch="wasm32", not(target_os="emscripten")))
+))]
+mod max {
+    pub const SECONDS: u64 = ::std::i32::MAX as u64;
+    #[allow(unused)]
+    pub const TIMESTAMP: &'static str = "2038-01-19T03:14:07Z";
+}
+
+#[cfg(any(
+    target_pointer_width="64",
+    target_os="windows",
+    all(target_arch="wasm32", not(target_os="emscripten")),
+))]
+mod max {
+    pub const SECONDS: u64 = 253_402_300_800-1;  // last second of year 9999
+    #[allow(unused)]
+    pub const TIMESTAMP: &str = "9999-12-31T23:59:59Z";
+}
+
+/// Error parsing datetime (timestamp)
+#[derive(Debug, PartialEq, Clone, Copy)]
+pub enum Error {
+    /// Numeric component is out of range
+    OutOfRange,
+    /// Bad character where digit is expected
+    InvalidDigit,
+    /// Other formatting errors
+    InvalidFormat,
+}
+
+impl StdError for Error {}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Error::OutOfRange => write!(f, "numeric component is out of range"),
+            Error::InvalidDigit => write!(f, "bad character where digit is expected"),
+            Error::InvalidFormat => write!(f, "timestamp format is invalid"),
+        }
+    }
+}
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+enum Precision {
+    Smart,
+    Seconds,
+    Millis,
+    Micros,
+    Nanos,
+}
+
+/// A wrapper type that allows you to Display a SystemTime
+#[derive(Debug, Clone)]
+pub struct Rfc3339Timestamp(SystemTime, Precision);
+
+#[inline]
+fn two_digits(b1: u8, b2: u8) -> Result<u64, Error> {
+    if b1 < b'0' || b2 < b'0' || b1 > b'9' || b2 > b'9' {
+        return Err(Error::InvalidDigit);
+    }
+    Ok(((b1 - b'0')*10 + (b2 - b'0')) as u64)
+}
+
+/// Parse RFC3339 timestamp `2018-02-14T00:28:07Z`
+///
+/// Supported feature: any precision of fractional
+/// digits `2018-02-14T00:28:07.133Z`.
+///
+/// Unsupported feature: localized timestamps. Only UTC is supported.
+pub fn parse_rfc3339(s: &str) -> Result<SystemTime, Error> {
+    if s.len() < "2018-02-14T00:28:07Z".len() {
+        return Err(Error::InvalidFormat);
+    }
+    let b = s.as_bytes();
+    if b[10] != b'T' || b[b.len()-1] != b'Z' {
+        return Err(Error::InvalidFormat);
+    }
+    parse_rfc3339_weak(s)
+}
+
+/// Parse RFC3339-like timestamp `2018-02-14 00:28:07`
+///
+/// Supported features:
+///
+/// 1. Any precision of fractional digits `2018-02-14 00:28:07.133`.
+/// 2. Supports timestamp with or without either of `T` or `Z`
+/// 3. Anything valid for `parse_3339` is valid for this function
+///
+/// Unsupported feature: localized timestamps. Only UTC is supported, even if
+/// `Z` is not specified.
+///
+/// This function is intended to use for parsing human input. Whereas
+/// `parse_rfc3339` is for strings generated programmatically.
+pub fn parse_rfc3339_weak(s: &str) -> Result<SystemTime, Error> {
+    if s.len() < "2018-02-14T00:28:07".len() {
+        return Err(Error::InvalidFormat);
+    }
+    let b = s.as_bytes();  // for careless slicing
+    if b[4] != b'-' || b[7] != b'-' || (b[10] != b'T' && b[10] != b' ') ||
+       b[13] != b':' || b[16] != b':'
+    {
+        return Err(Error::InvalidFormat);
+    }
+    let year = two_digits(b[0], b[1])? * 100 + two_digits(b[2], b[3])?;
+    let month = two_digits(b[5], b[6])?;
+    let day = two_digits(b[8], b[9])?;
+    let hour = two_digits(b[11], b[12])?;
+    let minute = two_digits(b[14], b[15])?;
+    let mut second = two_digits(b[17], b[18])?;
+
+    if year < 1970 || hour > 23 || minute > 59 || second > 60 {
+        return Err(Error::OutOfRange);
+    }
+    // TODO(tailhook) should we check that leaps second is only on midnight ?
+    if second == 60 {
+        second = 59
+    };
+    let leap_years = ((year - 1) - 1968) / 4 - ((year - 1) - 1900) / 100 +
+                     ((year - 1) - 1600) / 400;
+    let leap = is_leap_year(year);
+    let (mut ydays, mdays) = match month {
+        1 => (0, 31),
+        2 if leap => (31, 29),
+        2 => (31, 28),
+        3 => (59, 31),
+        4 => (90, 30),
+        5 => (120, 31),
+        6 => (151, 30),
+        7 => (181, 31),
+        8 => (212, 31),
+        9 => (243, 30),
+        10 => (273, 31),
+        11 => (304, 30),
+        12 => (334, 31),
+        _ => return Err(Error::OutOfRange),
+    };
+    if day > mdays || day == 0 {
+        return Err(Error::OutOfRange);
+    }
+    ydays += day - 1;
+    if leap && month > 2 {
+        ydays += 1;
+    }
+    let days = (year - 1970) * 365 + leap_years + ydays;
+
+    let time = second + minute * 60 + hour * 3600;
+
+    let mut nanos = 0;
+    let mut mult = 100_000_000;
+    if b.get(19) == Some(&b'.') {
+        for idx in 20..b.len() {
+            if b[idx] == b'Z' {
+                if idx == b.len()-1 {
+                    break;
+                } else {
+                    return Err(Error::InvalidDigit);
+                }
+            }
+            if b[idx] < b'0' || b[idx] > b'9' {
+                return Err(Error::InvalidDigit);
+            }
+            nanos += mult * (b[idx] - b'0') as u32;
+            mult /= 10;
+        }
+    } else if b.len() != 19 && (b.len() > 20 || b[19] != b'Z') {
+        return Err(Error::InvalidFormat);
+    }
+
+    let total_seconds = time + days * 86400;
+    if total_seconds > max::SECONDS {
+        return Err(Error::OutOfRange);
+    }
+
+    Ok(UNIX_EPOCH + Duration::new(total_seconds, nanos))
+}
+
+fn is_leap_year(y: u64) -> bool {
+    y % 4 == 0 && (y % 100 != 0 || y % 400 == 0)
+}
+
+/// Format an RFC3339 timestamp `2018-02-14T00:28:07Z`
+///
+/// This function formats timestamp with smart precision: i.e. if it has no
+/// fractional seconds, they aren't written at all. And up to nine digits if
+/// they are.
+///
+/// The value is always UTC and ignores system timezone.
+pub fn format_rfc3339(system_time: SystemTime) -> Rfc3339Timestamp {
+    Rfc3339Timestamp(system_time, Precision::Smart)
+}
+
+/// Format an RFC3339 timestamp `2018-02-14T00:28:07Z`
+///
+/// This format always shows timestamp without fractional seconds.
+///
+/// The value is always UTC and ignores system timezone.
+pub fn format_rfc3339_seconds(system_time: SystemTime) -> Rfc3339Timestamp {
+    Rfc3339Timestamp(system_time, Precision::Seconds)
+}
+
+/// Format an RFC3339 timestamp `2018-02-14T00:28:07.000Z`
+///
+/// This format always shows milliseconds even if millisecond value is zero.
+///
+/// The value is always UTC and ignores system timezone.
+pub fn format_rfc3339_millis(system_time: SystemTime) -> Rfc3339Timestamp {
+    Rfc3339Timestamp(system_time, Precision::Millis)
+}
+
+/// Format an RFC3339 timestamp `2018-02-14T00:28:07.000000Z`
+///
+/// This format always shows microseconds even if microsecond value is zero.
+///
+/// The value is always UTC and ignores system timezone.
+pub fn format_rfc3339_micros(system_time: SystemTime) -> Rfc3339Timestamp {
+    Rfc3339Timestamp(system_time, Precision::Micros)
+}
+
+/// Format an RFC3339 timestamp `2018-02-14T00:28:07.000000000Z`
+///
+/// This format always shows nanoseconds even if nanosecond value is zero.
+///
+/// The value is always UTC and ignores system timezone.
+pub fn format_rfc3339_nanos(system_time: SystemTime) -> Rfc3339Timestamp {
+    Rfc3339Timestamp(system_time, Precision::Nanos)
+}
+
+impl fmt::Display for Rfc3339Timestamp {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        use self::Precision::*;
+
+        let dur = self.0.duration_since(UNIX_EPOCH)
+            .expect("all times should be after the epoch");
+        let secs_since_epoch = dur.as_secs();
+        let nanos = dur.subsec_nanos();
+
+        if secs_since_epoch >= 253_402_300_800 { // year 9999
+            return Err(fmt::Error);
+        }
+
+        /* 2000-03-01 (mod 400 year, immediately after feb29 */
+        const LEAPOCH: i64 = 11017;
+        const DAYS_PER_400Y: i64 = 365*400 + 97;
+        const DAYS_PER_100Y: i64 = 365*100 + 24;
+        const DAYS_PER_4Y: i64 = 365*4 + 1;
+
+        let days = (secs_since_epoch / 86400) as i64 - LEAPOCH;
+        let secs_of_day = secs_since_epoch % 86400;
+
+        let mut qc_cycles = days / DAYS_PER_400Y;
+        let mut remdays = days % DAYS_PER_400Y;
+
+        if remdays < 0 {
+            remdays += DAYS_PER_400Y;
+            qc_cycles -= 1;
+        }
+
+        let mut c_cycles = remdays / DAYS_PER_100Y;
+        if c_cycles == 4 { c_cycles -= 1; }
+        remdays -= c_cycles * DAYS_PER_100Y;
+
+        let mut q_cycles = remdays / DAYS_PER_4Y;
+        if q_cycles == 25 { q_cycles -= 1; }
+        remdays -= q_cycles * DAYS_PER_4Y;
+
+        let mut remyears = remdays / 365;
+        if remyears == 4 { remyears -= 1; }
+        remdays -= remyears * 365;
+
+        let mut year = 2000 +
+            remyears + 4*q_cycles + 100*c_cycles + 400*qc_cycles;
+
+        let months = [31,30,31,30,31,31,30,31,30,31,31,29];
+        let mut mon = 0;
+        for mon_len in months.iter() {
+            mon += 1;
+            if remdays < *mon_len {
+                break;
+            }
+            remdays -= *mon_len;
+        }
+        let mday = remdays+1;
+        let mon = if mon + 2 > 12 {
+            year += 1;
+            mon - 10
+        } else {
+            mon + 2
+        };
+
+        let mut buf: [u8; 30] = [
+            // Too long to write as: b"0000-00-00T00:00:00.000000000Z"
+            b'0', b'0', b'0', b'0', b'-', b'0', b'0', b'-', b'0', b'0', b'T',
+            b'0', b'0', b':', b'0', b'0', b':', b'0', b'0',
+            b'.', b'0', b'0', b'0', b'0', b'0', b'0', b'0', b'0', b'0', b'Z',
+        ];
+        buf[0] = b'0' + (year / 1000) as u8;
+        buf[1] = b'0' + (year / 100 % 10) as u8;
+        buf[2] = b'0' + (year / 10 % 10) as u8;
+        buf[3] = b'0' + (year % 10) as u8;
+        buf[5] = b'0' + (mon / 10) as u8;
+        buf[6] = b'0' + (mon % 10) as u8;
+        buf[8] = b'0' + (mday / 10) as u8;
+        buf[9] = b'0' + (mday % 10) as u8;
+        buf[11] = b'0' + (secs_of_day / 3600 / 10) as u8;
+        buf[12] = b'0' + (secs_of_day / 3600 % 10) as u8;
+        buf[14] = b'0' + (secs_of_day / 60 / 10 % 6) as u8;
+        buf[15] = b'0' + (secs_of_day / 60 % 10) as u8;
+        buf[17] = b'0' + (secs_of_day / 10 % 6) as u8;
+        buf[18] = b'0' + (secs_of_day % 10) as u8;
+
+        let offset = if self.1 == Seconds || nanos == 0 && self.1 == Smart {
+            buf[19] = b'Z';
+            19
+        } else if self.1 == Millis {
+            buf[20] = b'0' + (nanos / 100_000_000) as u8;
+            buf[21] = b'0' + (nanos / 10_000_000 % 10) as u8;
+            buf[22] = b'0' + (nanos / 1_000_000 % 10) as u8;
+            buf[23] = b'Z';
+            23
+        } else if self.1 == Micros {
+            buf[20] = b'0' + (nanos / 100_000_000) as u8;
+            buf[21] = b'0' + (nanos / 10_000_000 % 10) as u8;
+            buf[22] = b'0' + (nanos / 1_000_000 % 10) as u8;
+            buf[23] = b'0' + (nanos / 100_000 % 10) as u8;
+            buf[24] = b'0' + (nanos / 10_000 % 10) as u8;
+            buf[25] = b'0' + (nanos / 1_000 % 10) as u8;
+            buf[26] = b'Z';
+            26
+        } else {
+            buf[20] = b'0' + (nanos / 100_000_000) as u8;
+            buf[21] = b'0' + (nanos / 10_000_000 % 10) as u8;
+            buf[22] = b'0' + (nanos / 1_000_000 % 10) as u8;
+            buf[23] = b'0' + (nanos / 100_000 % 10) as u8;
+            buf[24] = b'0' + (nanos / 10_000 % 10) as u8;
+            buf[25] = b'0' + (nanos / 1_000 % 10) as u8;
+            buf[26] = b'0' + (nanos / 100 % 10) as u8;
+            buf[27] = b'0' + (nanos / 10 % 10) as u8;
+            buf[28] = b'0' + (nanos / 1 % 10) as u8;
+            // 29th is 'Z'
+            29
+        };
+
+        // we know our chars are all ascii
+        f.write_str(str::from_utf8(&buf[..=offset]).expect("Conversion to utf8 failed"))
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use std::str::from_utf8;
+    use std::time::{UNIX_EPOCH, SystemTime, Duration};
+
+    use rand::Rng;
+
+    use super::{parse_rfc3339, parse_rfc3339_weak, format_rfc3339};
+    use super::{format_rfc3339_millis, format_rfc3339_micros};
+    use super::{format_rfc3339_nanos};
+    use super::max;
+
+    fn from_sec(sec: u64) -> (String, SystemTime) {
+        let s = time::at_utc(time::Timespec { sec: sec as i64, nsec: 0 })
+                  .rfc3339().to_string();
+        let time = UNIX_EPOCH + Duration::new(sec, 0);
+        (s, time)
+    }
+
+    #[test]
+    #[cfg(all(target_pointer_width="32", target_os="linux"))]
+    fn year_after_2038_fails_gracefully() {
+        // next second
+        assert_eq!(parse_rfc3339("2038-01-19T03:14:08Z").unwrap_err(),
+                   super::Error::OutOfRange);
+        assert_eq!(parse_rfc3339("9999-12-31T23:59:59Z").unwrap_err(),
+                   super::Error::OutOfRange);
+    }
+
+    #[test]
+    fn smoke_tests_parse() {
+        assert_eq!(parse_rfc3339("1970-01-01T00:00:00Z").unwrap(),
+                   UNIX_EPOCH + Duration::new(0, 0));
+        assert_eq!(parse_rfc3339("1970-01-01T00:00:01Z").unwrap(),
+                   UNIX_EPOCH + Duration::new(1, 0));
+        assert_eq!(parse_rfc3339("2018-02-13T23:08:32Z").unwrap(),
+                   UNIX_EPOCH + Duration::new(1_518_563_312, 0));
+        assert_eq!(parse_rfc3339("2012-01-01T00:00:00Z").unwrap(),
+                   UNIX_EPOCH + Duration::new(1_325_376_000, 0));
+    }
+
+    #[test]
+    fn smoke_tests_format() {
+        assert_eq!(
+            format_rfc3339(UNIX_EPOCH + Duration::new(0, 0)).to_string(),
+            "1970-01-01T00:00:00Z");
+        assert_eq!(
+            format_rfc3339(UNIX_EPOCH + Duration::new(1, 0)).to_string(),
+            "1970-01-01T00:00:01Z");
+        assert_eq!(
+            format_rfc3339(UNIX_EPOCH + Duration::new(1_518_563_312, 0)).to_string(),
+            "2018-02-13T23:08:32Z");
+        assert_eq!(
+            format_rfc3339(UNIX_EPOCH + Duration::new(1_325_376_000, 0)).to_string(),
+            "2012-01-01T00:00:00Z");
+    }
+
+    #[test]
+    fn smoke_tests_format_millis() {
+        assert_eq!(
+            format_rfc3339_millis(UNIX_EPOCH +
+                Duration::new(0, 0)).to_string(),
+            "1970-01-01T00:00:00.000Z");
+        assert_eq!(
+            format_rfc3339_millis(UNIX_EPOCH +
+                Duration::new(1_518_563_312, 123_000_000)).to_string(),
+            "2018-02-13T23:08:32.123Z");
+    }
+
+    #[test]
+    fn smoke_tests_format_micros() {
+        assert_eq!(
+            format_rfc3339_micros(UNIX_EPOCH +
+                Duration::new(0, 0)).to_string(),
+            "1970-01-01T00:00:00.000000Z");
+        assert_eq!(
+            format_rfc3339_micros(UNIX_EPOCH +
+                Duration::new(1_518_563_312, 123_000_000)).to_string(),
+            "2018-02-13T23:08:32.123000Z");
+        assert_eq!(
+            format_rfc3339_micros(UNIX_EPOCH +
+                Duration::new(1_518_563_312, 456_123_000)).to_string(),
+            "2018-02-13T23:08:32.456123Z");
+    }
+
+    #[test]
+    fn smoke_tests_format_nanos() {
+        assert_eq!(
+            format_rfc3339_nanos(UNIX_EPOCH +
+                Duration::new(0, 0)).to_string(),
+            "1970-01-01T00:00:00.000000000Z");
+        assert_eq!(
+            format_rfc3339_nanos(UNIX_EPOCH +
+                Duration::new(1_518_563_312, 123_000_000)).to_string(),
+            "2018-02-13T23:08:32.123000000Z");
+        assert_eq!(
+            format_rfc3339_nanos(UNIX_EPOCH +
+                Duration::new(1_518_563_312, 789_456_123)).to_string(),
+            "2018-02-13T23:08:32.789456123Z");
+    }
+
+    #[test]
+    fn upper_bound() {
+        let max = UNIX_EPOCH + Duration::new(max::SECONDS, 0);
+        assert_eq!(parse_rfc3339(&max::TIMESTAMP).unwrap(), max);
+        assert_eq!(format_rfc3339(max).to_string(), max::TIMESTAMP);
+    }
+
+    #[test]
+    fn leap_second() {
+        assert_eq!(parse_rfc3339("2016-12-31T23:59:60Z").unwrap(),
+                   UNIX_EPOCH + Duration::new(1_483_228_799, 0));
+    }
+
+    #[test]
+    fn first_731_days() {
+        let year_start = 0;  // 1970
+        for day in 0..= 365 * 2 {  // scan leap year and non-leap year
+            let (s, time) = from_sec(year_start + day * 86400);
+            assert_eq!(parse_rfc3339(&s).unwrap(), time);
+            assert_eq!(format_rfc3339(time).to_string(), s);
+        }
+    }
+
+    #[test]
+    fn the_731_consecutive_days() {
+        let year_start = 1_325_376_000;  // 2012
+        for day in 0..= 365 * 2 {  // scan leap year and non-leap year
+            let (s, time) = from_sec(year_start + day * 86400);
+            assert_eq!(parse_rfc3339(&s).unwrap(), time);
+            assert_eq!(format_rfc3339(time).to_string(), s);
+        }
+    }
+
+    #[test]
+    fn all_86400_seconds() {
+        let day_start = 1_325_376_000;
+        for second in 0..86400 {  // scan leap year and non-leap year
+            let (s, time) = from_sec(day_start + second);
+            assert_eq!(parse_rfc3339(&s).unwrap(), time);
+            assert_eq!(format_rfc3339(time).to_string(), s);
+        }
+    }
+
+    #[test]
+    fn random_past() {
+        let upper = SystemTime::now().duration_since(UNIX_EPOCH).unwrap()
+            .as_secs();
+        for _ in 0..10000 {
+            let sec = rand::thread_rng().gen_range(0, upper);
+            let (s, time) = from_sec(sec);
+            assert_eq!(parse_rfc3339(&s).unwrap(), time);
+            assert_eq!(format_rfc3339(time).to_string(), s);
+        }
+    }
+
+    #[test]
+    fn random_wide_range() {
+        for _ in 0..100_000 {
+            let sec = rand::thread_rng().gen_range(0, max::SECONDS);
+            let (s, time) = from_sec(sec);
+            assert_eq!(parse_rfc3339(&s).unwrap(), time);
+            assert_eq!(format_rfc3339(time).to_string(), s);
+        }
+    }
+
+    #[test]
+    fn milliseconds() {
+        assert_eq!(parse_rfc3339("1970-01-01T00:00:00.123Z").unwrap(),
+                   UNIX_EPOCH + Duration::new(0, 123_000_000));
+        assert_eq!(format_rfc3339(UNIX_EPOCH + Duration::new(0, 123_000_000))
+            .to_string(), "1970-01-01T00:00:00.123000000Z");
+    }
+
+    #[test]
+    #[should_panic(expected="OutOfRange")]
+    fn zero_month() {
+        parse_rfc3339("1970-00-01T00:00:00Z").unwrap();
+    }
+
+    #[test]
+    #[should_panic(expected="OutOfRange")]
+    fn big_month() {
+        parse_rfc3339("1970-32-01T00:00:00Z").unwrap();
+    }
+
+    #[test]
+    #[should_panic(expected="OutOfRange")]
+    fn zero_day() {
+        parse_rfc3339("1970-01-00T00:00:00Z").unwrap();
+    }
+
+    #[test]
+    #[should_panic(expected="OutOfRange")]
+    fn big_day() {
+        parse_rfc3339("1970-12-35T00:00:00Z").unwrap();
+    }
+
+    #[test]
+    #[should_panic(expected="OutOfRange")]
+    fn big_day2() {
+        parse_rfc3339("1970-02-30T00:00:00Z").unwrap();
+    }
+
+    #[test]
+    #[should_panic(expected="OutOfRange")]
+    fn big_second() {
+        parse_rfc3339("1970-12-30T00:00:78Z").unwrap();
+    }
+
+    #[test]
+    #[should_panic(expected="OutOfRange")]
+    fn big_minute() {
+        parse_rfc3339("1970-12-30T00:78:00Z").unwrap();
+    }
+
+    #[test]
+    #[should_panic(expected="OutOfRange")]
+    fn big_hour() {
+        parse_rfc3339("1970-12-30T24:00:00Z").unwrap();
+    }
+
+    #[test]
+    fn break_data() {
+        for pos in 0.."2016-12-31T23:59:60Z".len() {
+            let mut s = b"2016-12-31T23:59:60Z".to_vec();
+            s[pos] = b'x';
+            parse_rfc3339(from_utf8(&s).unwrap()).unwrap_err();
+        }
+    }
+
+    #[test]
+    fn weak_smoke_tests() {
+        assert_eq!(parse_rfc3339_weak("1970-01-01 00:00:00").unwrap(),
+                   UNIX_EPOCH + Duration::new(0, 0));
+        parse_rfc3339("1970-01-01 00:00:00").unwrap_err();
+
+        assert_eq!(parse_rfc3339_weak("1970-01-01 00:00:00.000123").unwrap(),
+                   UNIX_EPOCH + Duration::new(0, 123_000));
+        parse_rfc3339("1970-01-01 00:00:00.000123").unwrap_err();
+
+        assert_eq!(parse_rfc3339_weak("1970-01-01T00:00:00.000123").unwrap(),
+                   UNIX_EPOCH + Duration::new(0, 123_000));
+        parse_rfc3339("1970-01-01T00:00:00.000123").unwrap_err();
+
+        assert_eq!(parse_rfc3339_weak("1970-01-01 00:00:00.000123Z").unwrap(),
+                   UNIX_EPOCH + Duration::new(0, 123_000));
+        parse_rfc3339("1970-01-01 00:00:00.000123Z").unwrap_err();
+
+        assert_eq!(parse_rfc3339_weak("1970-01-01 00:00:00Z").unwrap(),
+                   UNIX_EPOCH + Duration::new(0, 0));
+        parse_rfc3339("1970-01-01 00:00:00Z").unwrap_err();
+    }
+}
diff --git a/vendor/humantime/src/duration.rs b/vendor/humantime/src/duration.rs
new file mode 100644
index 000000000..8359b851d
--- /dev/null
+++ b/vendor/humantime/src/duration.rs
@@ -0,0 +1,449 @@
+use std::error::Error as StdError;
+use std::fmt;
+use std::str::Chars;
+use std::time::Duration;
+
+/// Error parsing human-friendly duration
+#[derive(Debug, PartialEq, Clone)]
+pub enum Error {
+    /// Invalid character during parsing
+    ///
+    /// More specifically anything that is not alphanumeric is prohibited
+    ///
+    /// The field is an byte offset of the character in the string.
+    InvalidCharacter(usize),
+    /// Non-numeric value where number is expected
+    ///
+    /// This usually means that either time unit is broken into words,
+    /// e.g. `m sec` instead of `msec`, or just number is omitted,
+    /// for example `2 hours min` instead of `2 hours 1 min`
+    ///
+    /// The field is an byte offset of the errorneous character
+    /// in the string.
+    NumberExpected(usize),
+    /// Unit in the number is not one of allowed units
+    ///
+    /// See documentation of `parse_duration` for the list of supported
+    /// time units.
+    ///
+    /// The two fields are start and end (exclusive) of the slice from
+    /// the original string, containing errorneous value
+    UnknownUnit {
+        /// Start of the invalid unit inside the original string
+        start: usize,
+        /// End of the invalid unit inside the original string
+        end: usize,
+        /// The unit verbatim
+        unit: String,
+        /// A number associated with the unit
+        value: u64,
+    },
+    /// The numeric value is too large
+    ///
+    /// Usually this means value is too large to be useful. If user writes
+    /// data in subsecond units, then the maximum is about 3k years. When
+    /// using seconds, or larger units, the limit is even larger.
+    NumberOverflow,
+    /// The value was an empty string (or consists only whitespace)
+    Empty,
+}
+
+impl StdError for Error {}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Error::InvalidCharacter(offset) => write!(f, "invalid character at {}", offset),
+            Error::NumberExpected(offset) => write!(f, "expected number at {}", offset),
+            Error::UnknownUnit { unit, value, .. } if &unit == &"" => {
+                write!(f,
+                    "time unit needed, for example {0}sec or {0}ms",
+                    value,
+                )
+            }
+            Error::UnknownUnit { unit, .. } => {
+                write!(
+                    f,
+                    "unknown time unit {:?}, \
+                    supported units: ns, us, ms, sec, min, hours, days, \
+                    weeks, months, years (and few variations)",
+                    unit
+                )
+            }
+            Error::NumberOverflow => write!(f, "number is too large"),
+            Error::Empty => write!(f, "value was empty"),
+        }
+    }
+}
+
+/// A wrapper type that allows you to Display a Duration
+#[derive(Debug, Clone)]
+pub struct FormattedDuration(Duration);
+
+trait OverflowOp: Sized {
+    fn mul(self, other: Self) -> Result<Self, Error>;
+    fn add(self, other: Self) -> Result<Self, Error>;
+}
+
+impl OverflowOp for u64 {
+    fn mul(self, other: Self) -> Result<Self, Error> {
+        self.checked_mul(other).ok_or(Error::NumberOverflow)
+    }
+    fn add(self, other: Self) -> Result<Self, Error> {
+        self.checked_add(other).ok_or(Error::NumberOverflow)
+    }
+}
+
+struct Parser<'a> {
+    iter: Chars<'a>,
+    src: &'a str,
+    current: (u64, u64),
+}
+
+impl<'a> Parser<'a> {
+    fn off(&self) -> usize {
+        self.src.len() - self.iter.as_str().len()
+    }
+
+    fn parse_first_char(&mut self) -> Result<Option<u64>, Error> {
+        let off = self.off();
+        for c in self.iter.by_ref() {
+            match c {
+                '0'..='9' => {
+                    return Ok(Some(c as u64 - '0' as u64));
+                }
+                c if c.is_whitespace() => continue,
+                _ => {
+                    return Err(Error::NumberExpected(off));
+                }
+            }
+        }
+        Ok(None)
+    }
+    fn parse_unit(&mut self, n: u64, start: usize, end: usize)
+        -> Result<(), Error>
+    {
+        let (mut sec, nsec) = match &self.src[start..end] {
+            "nanos" | "nsec" | "ns" => (0u64, n),
+            "usec" | "us" => (0u64, n.mul(1000)?),
+            "millis" | "msec" | "ms" => (0u64, n.mul(1_000_000)?),
+            "seconds" | "second" | "secs" | "sec" | "s" => (n, 0),
+            "minutes" | "minute" | "min" | "mins" | "m"
+            => (n.mul(60)?, 0),
+            "hours" | "hour" | "hr" | "hrs" | "h" => (n.mul(3600)?, 0),
+            "days" | "day" | "d" => (n.mul(86400)?, 0),
+            "weeks" | "week" | "w" => (n.mul(86400*7)?, 0),
+            "months" | "month" | "M" => (n.mul(2_630_016)?, 0), // 30.44d
+            "years" | "year" | "y" => (n.mul(31_557_600)?, 0), // 365.25d
+            _ => {
+                return Err(Error::UnknownUnit {
+                    start, end,
+                    unit: self.src[start..end].to_string(),
+                    value: n,
+                });
+            }
+        };
+        let mut nsec = self.current.1.add(nsec)?;
+        if nsec > 1_000_000_000 {
+            sec = sec.add(nsec / 1_000_000_000)?;
+            nsec %= 1_000_000_000;
+        }
+        sec = self.current.0.add(sec)?;
+        self.current = (sec, nsec);
+        Ok(())
+    }
+
+    fn parse(mut self) -> Result<Duration, Error> {
+        let mut n = self.parse_first_char()?.ok_or(Error::Empty)?;
+        'outer: loop {
+            let mut off = self.off();
+            while let Some(c) = self.iter.next() {
+                match c {
+                    '0'..='9' => {
+                        n = n.checked_mul(10)
+                            .and_then(|x| x.checked_add(c as u64 - '0' as u64))
+                            .ok_or(Error::NumberOverflow)?;
+                    }
+                    c if c.is_whitespace() => {}
+                    'a'..='z' | 'A'..='Z' => {
+                        break;
+                    }
+                    _ => {
+                        return Err(Error::InvalidCharacter(off));
+                    }
+                }
+                off = self.off();
+            }
+            let start = off;
+            let mut off = self.off();
+            while let Some(c) = self.iter.next() {
+                match c {
+                    '0'..='9' => {
+                        self.parse_unit(n, start, off)?;
+                        n = c as u64 - '0' as u64;
+                        continue 'outer;
+                    }
+                    c if c.is_whitespace() => break,
+                    'a'..='z' | 'A'..='Z' => {}
+                    _ => {
+                        return Err(Error::InvalidCharacter(off));
+                    }
+                }
+                off = self.off();
+            }
+            self.parse_unit(n, start, off)?;
+            n = match self.parse_first_char()? {
+                Some(n) => n,
+                None => return Ok(
+                    Duration::new(self.current.0, self.current.1 as u32)),
+            };
+        }
+    }
+
+}
+
+/// Parse duration object `1hour 12min 5s`
+///
+/// The duration object is a concatenation of time spans. Where each time
+/// span is an integer number and a suffix. Supported suffixes:
+///
+/// * `nsec`, `ns` -- nanoseconds
+/// * `usec`, `us` -- microseconds
+/// * `msec`, `ms` -- milliseconds
+/// * `seconds`, `second`, `sec`, `s`
+/// * `minutes`, `minute`, `min`, `m`
+/// * `hours`, `hour`, `hr`, `h`
+/// * `days`, `day`, `d`
+/// * `weeks`, `week`, `w`
+/// * `months`, `month`, `M` -- defined as 30.44 days
+/// * `years`, `year`, `y` -- defined as 365.25 days
+///
+/// # Examples
+///
+/// ```
+/// use std::time::Duration;
+/// use humantime::parse_duration;
+///
+/// assert_eq!(parse_duration("2h 37min"), Ok(Duration::new(9420, 0)));
+/// assert_eq!(parse_duration("32ms"), Ok(Duration::new(0, 32_000_000)));
+/// ```
+pub fn parse_duration(s: &str) -> Result<Duration, Error> {
+    Parser {
+        iter: s.chars(),
+        src: s,
+        current: (0, 0),
+    }.parse()
+}
+
+/// Formats duration into a human-readable string
+///
+/// Note: this format is guaranteed to have same value when using
+/// parse_duration, but we can change some details of the exact composition
+/// of the value.
+///
+/// # Examples
+///
+/// ```
+/// use std::time::Duration;
+/// use humantime::format_duration;
+///
+/// let val1 = Duration::new(9420, 0);
+/// assert_eq!(format_duration(val1).to_string(), "2h 37m");
+/// let val2 = Duration::new(0, 32_000_000);
+/// assert_eq!(format_duration(val2).to_string(), "32ms");
+/// ```
+pub fn format_duration(val: Duration) -> FormattedDuration {
+    FormattedDuration(val)
+}
+
+fn item_plural(f: &mut fmt::Formatter, started: &mut bool,
+    name: &str, value: u64)
+    -> fmt::Result
+{
+    if value > 0 {
+        if *started {
+            f.write_str(" ")?;
+        }
+        write!(f, "{}{}", value, name)?;
+        if value > 1 {
+            f.write_str("s")?;
+        }
+        *started = true;
+    }
+    Ok(())
+}
+fn item(f: &mut fmt::Formatter, started: &mut bool, name: &str, value: u32)
+    -> fmt::Result
+{
+    if value > 0 {
+        if *started {
+            f.write_str(" ")?;
+        }
+        write!(f, "{}{}", value, name)?;
+        *started = true;
+    }
+    Ok(())
+}
+
+impl fmt::Display for FormattedDuration {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        let secs = self.0.as_secs();
+        let nanos = self.0.subsec_nanos();
+
+        if secs == 0 && nanos == 0 {
+            f.write_str("0s")?;
+            return Ok(());
+        }
+
+        let years = secs / 31_557_600;  // 365.25d
+        let ydays = secs % 31_557_600;
+        let months = ydays / 2_630_016;  // 30.44d
+        let mdays = ydays % 2_630_016;
+        let days = mdays / 86400;
+        let day_secs = mdays % 86400;
+        let hours = day_secs / 3600;
+        let minutes = day_secs % 3600 / 60;
+        let seconds = day_secs % 60;
+
+        let millis = nanos / 1_000_000;
+        let micros = nanos / 1000 % 1000;
+        let nanosec = nanos % 1000;
+
+        let ref mut started = false;
+        item_plural(f, started, "year", years)?;
+        item_plural(f, started, "month", months)?;
+        item_plural(f, started, "day", days)?;
+        item(f, started, "h", hours as u32)?;
+        item(f, started, "m", minutes as u32)?;
+        item(f, started, "s", seconds as u32)?;
+        item(f, started, "ms", millis)?;
+        item(f, started, "us", micros)?;
+        item(f, started, "ns", nanosec)?;
+        Ok(())
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use std::time::Duration;
+
+    use rand::Rng;
+
+    use super::{parse_duration, format_duration};
+    use super::Error;
+
+    #[test]
+    #[allow(clippy::cognitive_complexity)]
+    fn test_units() {
+        assert_eq!(parse_duration("17nsec"), Ok(Duration::new(0, 17)));
+        assert_eq!(parse_duration("17nanos"), Ok(Duration::new(0, 17)));
+        assert_eq!(parse_duration("33ns"), Ok(Duration::new(0, 33)));
+        assert_eq!(parse_duration("3usec"), Ok(Duration::new(0, 3000)));
+        assert_eq!(parse_duration("78us"), Ok(Duration::new(0, 78000)));
+        assert_eq!(parse_duration("31msec"), Ok(Duration::new(0, 31_000_000)));
+        assert_eq!(parse_duration("31millis"), Ok(Duration::new(0, 31_000_000)));
+        assert_eq!(parse_duration("6ms"), Ok(Duration::new(0, 6_000_000)));
+        assert_eq!(parse_duration("3000s"), Ok(Duration::new(3000, 0)));
+        assert_eq!(parse_duration("300sec"), Ok(Duration::new(300, 0)));
+        assert_eq!(parse_duration("300secs"), Ok(Duration::new(300, 0)));
+        assert_eq!(parse_duration("50seconds"), Ok(Duration::new(50, 0)));
+        assert_eq!(parse_duration("1second"), Ok(Duration::new(1, 0)));
+        assert_eq!(parse_duration("100m"), Ok(Duration::new(6000, 0)));
+        assert_eq!(parse_duration("12min"), Ok(Duration::new(720, 0)));
+        assert_eq!(parse_duration("12mins"), Ok(Duration::new(720, 0)));
+        assert_eq!(parse_duration("1minute"), Ok(Duration::new(60, 0)));
+        assert_eq!(parse_duration("7minutes"), Ok(Duration::new(420, 0)));
+        assert_eq!(parse_duration("2h"), Ok(Duration::new(7200, 0)));
+        assert_eq!(parse_duration("7hr"), Ok(Duration::new(25200, 0)));
+        assert_eq!(parse_duration("7hrs"), Ok(Duration::new(25200, 0)));
+        assert_eq!(parse_duration("1hour"), Ok(Duration::new(3600, 0)));
+        assert_eq!(parse_duration("24hours"), Ok(Duration::new(86400, 0)));
+        assert_eq!(parse_duration("1day"), Ok(Duration::new(86400, 0)));
+        assert_eq!(parse_duration("2days"), Ok(Duration::new(172_800, 0)));
+        assert_eq!(parse_duration("365d"), Ok(Duration::new(31_536_000, 0)));
+        assert_eq!(parse_duration("1week"), Ok(Duration::new(604_800, 0)));
+        assert_eq!(parse_duration("7weeks"), Ok(Duration::new(4_233_600, 0)));
+        assert_eq!(parse_duration("52w"), Ok(Duration::new(31_449_600, 0)));
+        assert_eq!(parse_duration("1month"), Ok(Duration::new(2_630_016, 0)));
+        assert_eq!(parse_duration("3months"), Ok(Duration::new(3*2_630_016, 0)));
+        assert_eq!(parse_duration("12M"), Ok(Duration::new(31_560_192, 0)));
+        assert_eq!(parse_duration("1year"), Ok(Duration::new(31_557_600, 0)));
+        assert_eq!(parse_duration("7years"), Ok(Duration::new(7*31_557_600, 0)));
+        assert_eq!(parse_duration("17y"), Ok(Duration::new(536_479_200, 0)));
+    }
+
+    #[test]
+    fn test_combo() {
+        assert_eq!(parse_duration("20 min 17 nsec "), Ok(Duration::new(1200, 17)));
+        assert_eq!(parse_duration("2h 15m"), Ok(Duration::new(8100, 0)));
+    }
+
+    #[test]
+    fn all_86400_seconds() {
+        for second in 0..86400 {  // scan leap year and non-leap year
+            let d = Duration::new(second, 0);
+            assert_eq!(d,
+                parse_duration(&format_duration(d).to_string()).unwrap());
+        }
+    }
+
+    #[test]
+    fn random_second() {
+        for _ in 0..10000 {
+            let sec = rand::thread_rng().gen_range(0, 253_370_764_800);
+            let d = Duration::new(sec, 0);
+            assert_eq!(d,
+                parse_duration(&format_duration(d).to_string()).unwrap());
+        }
+    }
+
+    #[test]
+    fn random_any() {
+        for _ in 0..10000 {
+            let sec = rand::thread_rng().gen_range(0, 253_370_764_800);
+            let nanos = rand::thread_rng().gen_range(0, 1_000_000_000);
+            let d = Duration::new(sec, nanos);
+            assert_eq!(d,
+                parse_duration(&format_duration(d).to_string()).unwrap());
+        }
+    }
+
+    #[test]
+    fn test_overlow() {
+        // Overflow on subseconds is earlier because of how we do conversion
+        // we could fix it, but I don't see any good reason for this
+        assert_eq!(parse_duration("100000000000000000000ns"),
+            Err(Error::NumberOverflow));
+        assert_eq!(parse_duration("100000000000000000us"),
+            Err(Error::NumberOverflow));
+        assert_eq!(parse_duration("100000000000000ms"),
+            Err(Error::NumberOverflow));
+
+        assert_eq!(parse_duration("100000000000000000000s"),
+            Err(Error::NumberOverflow));
+        assert_eq!(parse_duration("10000000000000000000m"),
+            Err(Error::NumberOverflow));
+        assert_eq!(parse_duration("1000000000000000000h"),
+            Err(Error::NumberOverflow));
+        assert_eq!(parse_duration("100000000000000000d"),
+            Err(Error::NumberOverflow));
+        assert_eq!(parse_duration("10000000000000000w"),
+            Err(Error::NumberOverflow));
+        assert_eq!(parse_duration("1000000000000000M"),
+            Err(Error::NumberOverflow));
+        assert_eq!(parse_duration("10000000000000y"),
+            Err(Error::NumberOverflow));
+    }
+
+    #[test]
+    fn test_nice_error_message() {
+        assert_eq!(parse_duration("123").unwrap_err().to_string(),
+            "time unit needed, for example 123sec or 123ms");
+        assert_eq!(parse_duration("10 months 1").unwrap_err().to_string(),
+            "time unit needed, for example 1sec or 1ms");
+        assert_eq!(parse_duration("10nights").unwrap_err().to_string(),
+            "unknown time unit \"nights\", supported units: \
+            ns, us, ms, sec, min, hours, days, weeks, months, \
+            years (and few variations)");
+    }
+}
diff --git a/vendor/humantime/src/lib.rs b/vendor/humantime/src/lib.rs
new file mode 100644
index 000000000..9be6f2285
--- /dev/null
+++ b/vendor/humantime/src/lib.rs
@@ -0,0 +1,34 @@
+//! Human-friendly time parser and formatter
+//!
+//! 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.
+//!
+//! 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
+
+#![forbid(unsafe_code)]
+#![warn(missing_debug_implementations)]
+#![warn(missing_docs)]
+
+mod duration;
+mod wrapper;
+mod date;
+
+pub use self::duration::{parse_duration, Error as DurationError};
+pub use self::duration::{format_duration, FormattedDuration};
+pub use self::wrapper::{Duration, Timestamp};
+pub use self::date::{parse_rfc3339, parse_rfc3339_weak, Error as TimestampError};
+pub use self::date::{
+    format_rfc3339, format_rfc3339_micros, format_rfc3339_millis, format_rfc3339_nanos,
+    format_rfc3339_seconds,
+};
+pub use self::date::{Rfc3339Timestamp};
diff --git a/vendor/humantime/src/wrapper.rs b/vendor/humantime/src/wrapper.rs
new file mode 100644
index 000000000..99af6502a
--- /dev/null
+++ b/vendor/humantime/src/wrapper.rs
@@ -0,0 +1,107 @@
+use std::str::FromStr;
+use std::ops::Deref;
+use std::fmt;
+use std::time::{Duration as StdDuration, SystemTime};
+
+use crate::duration::{self, parse_duration, format_duration};
+use crate::date::{self, parse_rfc3339_weak, format_rfc3339};
+
+/// A wrapper for duration that has `FromStr` implementation
+///
+/// This is useful if you want to use it somewhere where `FromStr` is
+/// expected.
+///
+/// See `parse_duration` for the description of the format.
+///
+/// # Example
+///
+/// ```
+/// use std::time::Duration;
+/// let x: Duration;
+/// x = "12h 5min 2ns".parse::<humantime::Duration>().unwrap().into();
+/// assert_eq!(x, Duration::new(12*3600 + 5*60, 2))
+/// ```
+///
+#[derive(Debug, PartialEq, Eq, Hash, Clone, Copy)]
+pub struct Duration(StdDuration);
+
+/// A wrapper for SystemTime that has `FromStr` implementation
+///
+/// This is useful if you want to use it somewhere where `FromStr` is
+/// expected.
+///
+/// See `parse_rfc3339_weak` for the description of the format. The "weak"
+/// format is used as it's more pemissive for human input as this is the
+/// expected use of the type (e.g. command-line parsing).
+///
+/// # Example
+///
+/// ```
+/// use std::time::SystemTime;
+/// let x: SystemTime;
+/// x = "2018-02-16T00:31:37Z".parse::<humantime::Timestamp>().unwrap().into();
+/// assert_eq!(humantime::format_rfc3339(x).to_string(), "2018-02-16T00:31:37Z");
+/// ```
+///
+#[derive(Debug, PartialEq, Eq, Clone)]
+pub struct Timestamp(SystemTime);
+
+impl AsRef<StdDuration> for Duration {
+    fn as_ref(&self) -> &StdDuration { &self.0 }
+}
+
+impl Deref for Duration {
+    type Target = StdDuration;
+    fn deref(&self) -> &StdDuration { &self.0 }
+}
+
+impl Into<StdDuration> for Duration {
+    fn into(self) -> StdDuration { self.0 }
+}
+
+impl From<StdDuration> for Duration {
+    fn from(dur: StdDuration) -> Duration { Duration(dur) }
+}
+
+impl FromStr for Duration {
+    type Err = duration::Error;
+    fn from_str(s: &str) -> Result<Duration, Self::Err> {
+        parse_duration(s).map(Duration)
+    }
+}
+
+impl fmt::Display for Duration {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        format_duration(self.0).fmt(f)
+    }
+}
+
+impl AsRef<SystemTime> for Timestamp {
+    fn as_ref(&self) -> &SystemTime { &self.0 }
+}
+
+impl Deref for Timestamp {
+    type Target = SystemTime;
+    fn deref(&self) -> &SystemTime { &self.0 }
+}
+
+impl Into<SystemTime> for Timestamp {
+    fn into(self) -> SystemTime { self.0 }
+}
+
+impl From<SystemTime> for Timestamp {
+    fn from(dur: SystemTime) -> Timestamp { Timestamp(dur) }
+}
+
+impl FromStr for Timestamp {
+    type Err = date::Error;
+    fn from_str(s: &str) -> Result<Timestamp, Self::Err> {
+        parse_rfc3339_weak(s).map(Timestamp)
+    }
+}
+
+impl fmt::Display for Timestamp {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        format_rfc3339(self.0).fmt(f)
+    }
+}