Changelog #58

#7130 add extract-assignment assist.

#7091 rust-analyzer.server.extraEnv config to specify environment variables for rust-analyzer process.

#7107 add working dir to cargo metadata fail messages.

#7106 produce fine-grained diffs when formatting files.

#7071 pass --all-targets to cargo check when discovering project structure.

#7080 initial support for const type parameters.

#7121 show lifetimes and labels on hover.

#7123 basic support for 2021 edition.

#7070 fix $0 inserted during edits.

#7088 fix false positive "unnecessary braces" diagnostic.

#7064 improve auto-importing completion speed and accuracy.

#7059 fix handling of $_ in macros.

#7075 use .format to trigger postfix format completion.

#7101 fix spacing bug in proc-macro.

#7055 don’t swallow the "rustfmt not installed error".

#7102 fix completion of Default struct update syntax.

#7116 fix proc-macros for deep trees.

#7125 don’t emit arg count diagnostics for method calls with unknown receiver.

#7134 fix type-inference for macro generated arrays.

#7136 fixed nested eager macros.

#7068 add VSCode command to view the rust-analyzer’s hir of a function body.

#7077, #7104 avoid allocations.

#7113 manual updates.

#7115 migrate HasSource::source to return an Option.

#7083 refactor mbe parsing code.