Top rust issues

Resolve `await` syntax

A-async-await AsyncAwait-Focus C-tracking-issue T-lang

RFC: Merging the avr-rust fork upstream

C-feature-request O-AVR T-core WG-embedded

Tracking issue for const generics (RFC 2000)

A-const-fn A-const-generics A-typesystem B-RFC-approved C-tracking-issue F-const_generics T-compiler T-lang requires-nightly

Tracking issue for `..=` inclusive ranges (RFC #1192) -- originally `...`

B-RFC-implemented B-unstable C-tracking-issue E-mentor T-lang T-libs disposition-merge finished-final-comment-period

Tracking issue for async/await (RFC 2394)

A-async-await A-generators AsyncAwait-Triaged B-RFC-approved C-tracking-issue T-lang

Tracking issue for `impl Trait` (RFC 1522, RFC 1951, RFC 2071)

B-RFC-implemented B-unstable C-tracking-issue T-lang disposition-merge finished-final-comment-period

[Stabilization] Pin APIs

T-libs finished-final-comment-period

Tracking issue for `?` operator and `try` blocks (RFC 243, `question_mark` & `try_blocks` features)

A-error-handling B-RFC-approved B-RFC-implemented B-unstable C-tracking-issue F-try_blocks Libs-Tracked T-lang T-libs

Tracking issue for specialization (RFC 1210)

A-specialization A-traits B-RFC-approved B-RFC-implemented B-unstable C-tracking-issue F-specialization T-lang

[Stabilization] async/await MVP

A-async-await AsyncAwait-Focus F-async_await I-nominated T-lang disposition-merge finished-final-comment-period