Enforce `#![deny(bare_trait_objects)]` in `src/librustc_errors`.

Some can be avoided by using remove_entry instead of remove.

…atsakis

Deny bare trait objects in librustc_driver

Enforce `#![deny(bare_trait_objects)]` in `src/librustc_driver`.

Previously we'd only do so for stage 0 but with keep-stage
improvements it seems likely that we'll see more developers working in
the stage 1, so we should allow enabling incremental for them.

Ideally, the check we probably want is to only enable incremental for
the last compiler build scheduled, but there's no good way to do so
today. Just enabling incremental in all stages should be sufficient;
we may be doing extra work that's needles -- compiling incrementally
something that will never be recompiled in-place -- but that should be
sufficiently unlikely (i.e., users either don't care or won't be
compiling the compiler twice).

AsRef doc wording tweaks

Don't fail master pull request when an unrelated tool is not test-pass.

update nomicon

Will this trigger a website update automatically or is that a separate step?

Deny bare trait objects in src/librustc_errors

Enforce `#![deny(bare_trait_objects)]` in `src/librustc_errors`.

…arkor

Reduce the number of clone()s needed in obligation_forest

Some can be avoided by using `remove_entry` instead of `remove`.

Calculate the exact capacity for 2 HashMaps

update miri

…age, r=alexcrichton

Enable incremental independent of stage

Previously we'd only do so for stage 0 but with keep-stage
improvements it seems likely that we'll see more developers working in
the stage 1, so we should allow enabling incremental for them.

Block beta if clippy breaks.

Also, don't fail master pull request when an unrelated tool is not test-pass.

…er, r=QuietMisdreavus

Pass edition flags to compiler from rustdoc as expected

Fixes rust-lang#52357.