Rust 1.35.0

Language

--------

- [FnOnce, FnMut, and the Fn traits are now implemented for Box,

Box, and Box respectively.][59500]

- [You can now coerce closures into unsafe function pointers.][59580] e.g.

  unsafe fn call_unsafe(func: unsafe fn()) {
func()
}
pub fn main() {
unsafe { call_unsafe(|| {}); }
}

Compiler

--------

- [Added the armv6-unknown-freebsd-gnueabihf and

armv7-unknown-freebsd-gnueabihf targets.][58080]

- [Added the wasm32-unknown-wasi target.][59464]

Libraries

---------

- [Thread will now show its ID in Debug output.][59460]

- [StdinLock, StdoutLock, and StderrLock now implement AsRawFd.][59512]

- [alloc::System now implements Default.][59451]

- [Expanded Debug output ({:#?}) for structs now has a trailing comma on the

last field.][59076]

- [char::{ToLowercase, ToUppercase} now

implement ExactSizeIterator.][58778]

- [All NonZero numeric types now implement FromStr.][58717]

- [Removed the Read trait bounds

on the BufReader::{get_ref, get_mut, into_inner} methods.][58423]

- [You can now call the dbg! macro without any parameters to print the file

and line where it is called.][57847]

- [In place ASCII case conversions are now up to 4× faster.][59283]

e.g. str::make_ascii_lowercase

- [hash_map::{OccupiedEntry, VacantEntry} now implement Sync

and Send.][58369]

Stabilized APIs

---------------

- [f32::copysign]

- [f64::copysign]

- [RefCell::replace_with]

- [RefCell::map_split]

- [ptr::hash]

- [Range::contains]

- [RangeFrom::contains]

- [RangeTo::contains]

- [RangeInclusive::contains]

- [RangeToInclusive::contains]

- [Option::copied]

Cargo

-----

- [You can now set cargo:rustc-cdylib-link-arg at build time to pass custom

linker arguments when building a cdylib.][cargo/6298] Its usage is highly

platform specific.

Misc

----

- [The Rust toolchain is now available natively for musl based distros.][58575]

[59460]: https://github.com/rust-lang/rust/pull/59460/

[59464]: https://github.com/rust-lang/rust/pull/59464/

[59500]: https://github.com/rust-lang/rust/pull/59500/

[59512]: https://github.com/rust-lang/rust/pull/59512/

[59580]: https://github.com/rust-lang/rust/pull/59580/

[59283]: https://github.com/rust-lang/rust/pull/59283/

[59451]: https://github.com/rust-lang/rust/pull/59451/

[59076]: https://github.com/rust-lang/rust/pull/59076/

[58778]: https://github.com/rust-lang/rust/pull/58778/

[58717]: https://github.com/rust-lang/rust/pull/58717/

[58369]: https://github.com/rust-lang/rust/pull/58369/

[58423]: https://github.com/rust-lang/rust/pull/58423/

[58080]: https://github.com/rust-lang/rust/pull/58080/

[57847]: https://github.com/rust-lang/rust/pull/57847/

[58575]: https://github.com/rust-lang/rust/pull/58575

[cargo/6298]: https://github.com/rust-lang/cargo/pull/6298/

[f32::copysign]: https://doc.rust-lang.org/stable/std/primitive.f32.html#method.copysign

[f64::copysign]: https://doc.rust-lang.org/stable/std/primitive.f64.html#method.copysign

[RefCell::replace_with]: https://doc.rust-lang.org/stable/std/cell/struct.RefCell.html#method.replace_with

[RefCell::map_split]: https://doc.rust-lang.org/stable/std/cell/struct.RefCell.html#method.map_split

[ptr::hash]: https://doc.rust-lang.org/stable/std/ptr/fn.hash.html

[Range::contains]: https://doc.rust-lang.org/std/ops/struct.Range.html#method.contains

[RangeFrom::contains]: https://doc.rust-lang.org/std/ops/struct.RangeFrom.html#method.contains

[RangeTo::contains]: https://doc.rust-lang.org/std/ops/struct.RangeTo.html#method.contains

[RangeInclusive::contains]: https://doc.rust-lang.org/std/ops/struct.RangeInclusive.html#method.contains

[RangeToInclusive::contains]: https://doc.rust-lang.org/std/ops/struct.RangeToInclusive.html#method.contains

[Option::copied]: https://doc.rust-lang.org/std/option/enum.Option.html#method.copied