Update RLS and Rustfmt

[nrc]

Re-opening #56061

@bors: r=kennytm p=2

Closes #55966
Closes #55965

[rust-highfive]

r? @aturon

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[rust-highfive]

⚠️ Warning ⚠️

• These commits modify submodules.

[nrc]

@bors: r=kennytm p=2

[bors]

📌 Commit 9b96ca2 has been approved by kennytm

[rust-highfive]

The job x86_64-gnu-llvm-5.0 of your PR failed on Travis (raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log.

travis_time:end:0034051e:start=1542742010643162847,finish=1542742011685774288,duration=1042611441
$ git checkout -qf FETCH_HEAD
travis_fold:end:git.checkout

Encrypted environment variables have been removed for security reasons.
See https://docs.travis-ci.com/user/pull-requests/#Pull-Requests-and-Security-Restrictions
$ export SCCACHE_BUCKET=rust-lang-ci-sccache2
$ export SCCACHE_REGION=us-west-1
Setting environment variables from .travis.yml
$ export IMAGE=x86_64-gnu-llvm-5.0
---
############################################################              83.3%
######################################################################## 100.0%
[00:02:13] extracting /checkout/obj/build/cache/2018-10-30/cargo-beta-x86_64-unknown-linux-gnu.tar.gz
[00:02:13]     Updating crates.io index
[00:02:20] error: the lock file /checkout/src/Cargo.lock needs to be updated but --locked was passed to prevent this
[00:02:20] Build completed unsuccessfully in 0:00:19
[00:02:20] Makefile:81: recipe for target 'prepare' failed
[00:02:20] make: *** [prepare] Error 1
[00:02:21] Command failed. Attempt 2/5:
[00:02:21] Command failed. Attempt 2/5:
[00:02:21]     Updating crates.io index
[00:02:21] error: the lock file /checkout/src/Cargo.lock needs to be updated but --locked was passed to prevent this
[00:02:21] Build completed unsuccessfully in 0:00:00
[00:02:21] make: *** [prepare] Error 1
[00:02:21] Makefile:81: recipe for target 'prepare' failed
[00:02:23] Command failed. Attempt 3/5:
[00:02:23] Command failed. Attempt 3/5:
[00:02:23]     Updating crates.io index
[00:02:24] error: the lock file /checkout/src/Cargo.lock needs to be updated but --locked was passed to prevent this
[00:02:24] Build completed unsuccessfully in 0:00:00
[00:02:24] Makefile:81: recipe for target 'prepare' failed
[00:02:24] make: *** [prepare] Error 1
[00:02:27] Command failed. Attempt 4/5:
[00:02:27] Command failed. Attempt 4/5:
[00:02:27]     Updating crates.io index
[00:02:27] error: the lock file /checkout/src/Cargo.lock needs to be updated but --locked was passed to prevent this
[00:02:27] Build completed unsuccessfully in 0:00:00
[00:02:27] make: *** [prepare] Error 1
[00:02:27] Makefile:81: recipe for target 'prepare' failed
[00:02:31] Command failed. Attempt 5/5:
[00:02:31] Command failed. Attempt 5/5:
[00:02:31]     Updating crates.io index
[00:02:31] error: the lock file /checkout/src/Cargo.lock needs to be updated but --locked was passed to prevent this
[00:02:31] Build completed unsuccessfully in 0:00:00
2616272 .
1145776 ./src
781828 ./.git

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN. (Feature Requests)

[nrc]

@bors: r=kennytm p=2

[bors]

📌 Commit 595bea6 has been approved by kennytm

[bors]

⌛ Testing commit 595bea6 with merge f1e2fa8...

[bors]

☀️ Test successful - status-appveyor, status-travis
Approved by: kennytm
Pushing f1e2fa8 to master...