chore(deps): bump chrono from 0.4.19 to 0.4.22

[dependabot]

Bumps chrono from 0.4.19 to 0.4.22.

Release notes

Sourced from chrono's releases.

0.4.22

Unfortunately the introduction of the iana-time-zone dependency in 0.4.21 caused some new regressions with lesser known platforms. This release fixes all of the issues we've encountered, improving the situation on some WebAssembly targets, SGX and on macOS/iOS. We've improved our CI setup to hopefully catch more of these issues before release in the future.

• Make wasm-bindgen optional on wasm32-unknown-unknown target (#771)
• Avoid iana-time-zone dependency on x86_64-fortanix-unknown-sgx (#767, thanks to @​trevor-crypto)
• Update iana-time-zone version to 0.1.44 to avoid cyclic dependencies (#773, thanks to @​Kijewski for the upstream PRs)
• Clarify documentation about year range in formatting/parsing (#765)

0.4.21 is a bugfix release that mainly fixes one regression from 0.4.20:

• Fall back to UTC in case no timezone is found. Unfortunately this is a regression from the changes we made in 0.4.20 where we now parse the timezone database ourselves. Before 0.4.20, TimeZone::now() fell back to UTC in the case it could not find the current timezone, but the new implementation panicked in that case.
• Correctly detect timezone on Android (also #756). Android does have the timezone database installed, but it's in a different path, and it does not use /etc/localtime to keep track of the current timezone. Instead we now use the iana-time-zone crate as a dependency, since it already has quite a bit of logic for finding the current timezone on a host of platforms.

Additionally, there is a documentation fix that reverts an incorrect guarantee:

• Document that %Y can have a negative value, both in formatting and in parsing (#760, thanks to @​alex)

0.4.20

chrono is a date and time library for Rust and 0.4.20 is the first chrono release since Sep 2020. There has been a long hiatus since the previous maintainer was no longer able to spend much time on the crate; thanks to @​quodlibetor for their stewardship of the chrono crate for many years! The new maintainers are @​djc and @​esheppa. Our first priority has been fixing the soundness issues with calls to localtime_r() as first reported in #499 and the RUSTSEC-2020-0159 advisory. In order to do this we adapted code from the tz-rs crate maintained by @​x-hgg-x for use within chrono -- thanks for working on that! With the new implementation, chrono uses safe Rust code to parse the timezone data files on Unix platforms directly instead of relying on libc.

Due to compatibility reasons, this release does not yet remove the time 0.1 dependency, though chrono 0.4.20 does not depend on the vulnerable parts of the time 0.1.x versions. In a future 0.5 release, we will remove the time dependency.

The minimum supported Rust version for 0.4.20 is 1.32.0, which is intentionally still quite conservative. If you are using chrono 0.4 with a Rust version older than 1.52, we'd like to hear from you since we'd like to further modernize the code base to ease maintenance.

Fixes

• Fix unsound call to localtime_r() by parsing timezone files in Rust on Unix (#677 and #728)
• Allow RFC 2822 parser to deal with comments (#733 then #737, thanks to @​Finomnis)
• Avoid panicking during parsing (#686, thanks to @​botahamec)
• Avoid panics when rounding durations (#659, thanks to @​ARBaart)
• Fix Duration::abs() behavior in case of negative durations with nanoseconds (#734, thanks to @​abreis)

Additions

• Make ParserErrorKind public and available through ParseError::kind() (#588, thanks to @​sbrocket)
• Expose associated MIN and MAX const values in favor of free-standing consts (#726)
• Add (optional) support for rkyv (#644 and #701, thanks to @​dovahcrow)
• Support month-based calculations against NaiveDate (#732 with follow up in #752, thanks to @​avantgardnerio)
• Add NaiveWeek type to facilitate week-based calculations (#666, thanks to @​sestrella)
• Add NaiveDateTime::and_local_timezone() method (#711, thanks to @​botahamec)
• Add DateTime::from_local() method (#572, thanks to @​retrhelo)
• Extend serde integration for NaiveDateTime (#664, thanks to @​nickelc)
• Implement DoubleEndedIterator for NaiveDateDaysIterator/NaiveDateWeeksIterator (#697, thanks to @​teobouvard)
• Implement std::iter::Sum for Duration (#522, thanks to @​jakevossen5)
• Add years_since() method to DateTime/Date (#557 then #707, thanks to @​yozhgoor)
• Implement AddAssign/SubAssign for DateTime/Date (#698, thanks to @​MrGunflame)
• Fix imports on WASM targets (#672, thanks to @​danielalvsaaker)
• Implement std::error::Error for ParseWeekdayError (#745)

Non-functional improvements

... (truncated)

Changelog

Sourced from chrono's changelog.

0.4.22

• Allow wasmbindgen to be optional on wasm32-unknown-unknown target [(#771)](chronotope/chrono#771)
• Fix compile error for x86_64-fortanix-unknown-sgx [(#767)](chronotope/chrono#767)
• Update iana-time-zone version to 1.44 [(#773)](chronotope/chrono#773)

0.4.21

• Fall back to UTC timezone in cases where no timezone is found [(#756)](chronotope/chrono#756)
• Correctly detect timezone on Android [(#756)](chronotope/chrono#756)
• Improve documentation for strftime %Y specifier [(#760)](chronotope/chrono#760)

0.4.20

• Add more formatting documentation and examples.
• Add support for microseconds timestamps serde serialization/deserialization (#304)
• Fix DurationRound is not TZ aware (#495)
• Implement DurationRound for NaiveDateTime
• Implement std::iter::Sum for Duration
• Add DateTime::from_local() to construct from given local date and time (#572)
• Add a function that calculates the number of years elapsed between now and a given Date or DateTime (#557)
• Correct build for wasm32-unknown-emscripten target (#568)
• Change Local::now() and Utc::now() documentation from "current date" to "current date and time" (#647)
• Fix duration_round panic on rounding by Duration::zero() (#658)
• Add optional rkyv support.
• Add support for microseconds timestamps serde serialization for NaiveDateTime.
• Add support for optional timestamps serde serialization for NaiveDateTime.
• Fix build for wasm32-unknown-emscripten (@​yu-re-ka #593)
• Make ParseErrorKind public and available through ParseError::kind() (#588)
• Implement DoubleEndedIterator for NaiveDateDaysIterator and NaiveDateWeeksIterator
• Fix panicking when parsing a DateTime (@​botahamec)
• Add support for getting week bounds based on a specific NaiveDate and a Weekday (#666)
• Remove libc dependency from Cargo.toml.
• Add the and_local_timezone method to NaiveDateTime
• Fix the behavior of Duration::abs() for negative durations with non-zero nanos
• Add compatibility with rfc2822 comments (#733)
• Make js-sys and wasm-bindgen enabled by default when target is wasm32-unknown-unknown for ease of API discovery
• Add the Months struct and associated Add and Sub impls

Commits

• 4514276 update changelog
• db8bde3 Apply clippy suggestions
• f6b575c Bump version number to 0.4.22
• af69b90 Require iana-time-zone 0.1.44
• 84f98e0 set fallback feature in iana-time-zone depedency
• 511d368 Add sgx build to CI
• bee614a Do not include iana-time-zone for sgx
• fe4bd22 allow optional wasmbindgen
• 95223ee format: be specific about support year range
• 2d22e57 Bump version number to 0.4.21
• Additional commits viewable in compare view

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