vadimcn/rust forked from rust-lang/rust

Fixes rust-lang#28062

There is no longer a need for that pattern, since enums are now qualified.

Currently, `early_error` and `early_warn` in `librustc::session` always use `ColorConfig::Auto`. Modify them to follow the color configuration set by the `--color` option.

As colored output is also printed during the early stage, parsing the `--color` option should be done as early as possible. However, there are still some cases when the output needs to be colored before knowing the exact color settings. In these cases, it will be defaulted to `ColorConfig::Auto`, which is the same as before.

Fixes rust-lang#27879.

Fixes rust-lang#28105.

Fixes rust-lang#28105.

r? @eddyb

This implements the proposed "read_exact" RFC (rust-lang/rfcs#980).

Tracking issue: rust-lang#27585

As title :-)
Part of rust-lang#24407.

r? @Manishearth

As title :-)
Part of rust-lang#24407.

r? @Manishearth

This allows marking attributes as whitelisted/crate-only independent of
their feature gate status.

Closes rust-lang#24213

…arth

This allows marking attributes as whitelisted/crate-only independent of
their feature gate status.

Closes rust-lang#24213

It is very difficult to find tidy problems in the midst of the output of
the LLVM/jemalloc/etc. build, and travis is great for the former, so
lets remove that problem.

It is very difficult to find tidy problems in the midst of the output of
the LLVM/jemalloc/etc. build, and travis is great for the former, so
lets remove that problem.

Encountered an issue with `pacman` while going through the guide for installing the `mingw` toolchain on Windows with `msys2`, after some googling I found the [solution](msys2/MSYS2-packages#163 (comment)).

I thought it would be good to update the README so people don't get frustrated. 😃 

r? @steveklabnik

See rust-lang#27775.

r? @alexcrichton

This appears to have been an oversight, as the structs are stable but only nameable through `core::fmt`.

closes rust-lang#20803

Use suggested composite command instead of 2 separate commands.