Installation instructions are outdated

[voider1]

When I try to install RLS with rustup I'll get a lot of errors because of the nightly toolchain, if I do it without nightly just on stable it works like a charm. This was on MacOS 10.13.1.

[brendanzab]

Yup, I'm running into this after I rustuped least night:

λ rustup update
info: syncing channel updates for 'stable-x86_64-apple-darwin'
info: syncing channel updates for 'nightly-x86_64-apple-darwin'
info: latest update on 2017-12-02, rust version 1.24.0-nightly (bb42071f6 2017-12-01)
info: downloading component 'rustc'
 36.4 MiB /  36.4 MiB (100 %)  99.2 KiB/s ETA:   0 s
info: downloading component 'rust-std'
 52.1 MiB /  52.1 MiB (100 %) 422.1 KiB/s ETA:   0 s
info: downloading component 'cargo'
  2.9 MiB /   2.9 MiB (100 %) 361.6 KiB/s ETA:   0 s
info: downloading component 'rust-docs'
  4.6 MiB /   4.6 MiB (100 %) 406.4 KiB/s ETA:   0 s
info: downloading component 'rust-analysis'
info: downloading component 'rust-src'
  2.3 MiB /   2.3 MiB (100 %) 428.6 KiB/s ETA:   0 s
info: removing component 'rustc'
info: removing component 'rust-std'
info: removing component 'cargo'
info: removing component 'rust-docs'
info: removing component 'rls-preview'
info: removing component 'rust-analysis'
info: removing component 'rust-src'
info: installing component 'rustc'
info: installing component 'rust-std'
info: installing component 'cargo'
info: installing component 'rust-docs'
info: installing component 'rust-analysis'
info: installing component 'rust-src'
info: checking for self-updates

  stable-x86_64-apple-darwin unchanged - rustc 1.22.1 (05e2e1c41 2017-11-22)
   nightly-x86_64-apple-darwin updated - rustc 1.24.0-nightly (bb42071f6 2017-12-01)

Seems like it removed rls-preview, but did not reinstall. Only discovered it after VS Code started complaining.

[jkeiser]

This can happen when the rls-preview build fails for some reason. 2017-11-30 still has it:

rustup install nightly-2017-11-30
rustup component add rls-preview --toolchain nightly-2017-11-30
rustup component add rust-analysis --toolchain nightly-2017-11-30
rustup component add rust-src --toolchain nightly-2017-11-30

Then you can set the version of Rust you want RLS to use in VS Code preferences. (I added "rust-client.channel": "nightly-2017-11-30" to my user preferences.

I imagine this can't be closed until the root cause (the failed build) is diagnosed. This got it running for me. (Note, however, that there is a bug with that version, which is believed fixed in the nonexistent nightly.

[jkeiser]

Note: nightly-2017-11-20 fixed the problem for me. Had to turn off clippy though.

EDIT: updated this, I had further bugs with rls in 2017-11-22 which aren't in 20. I'll check if they recur when the nightly resumes.

[jankeromnes]

This seems like a recurring problem where sometimes rls-preview doesn't make it into nightly: https://www.reddit.com/r/rust/comments/7hczbn/rls_component_gone/

There seems to be a way to install the component from an earlier Nightly that included it (or indeed from stable if you want a more stable but slightly older RLS).

[RReverser]

Looks like this happened again (seems more frequent than before).

[adrianbrink]

I have the same problem :-)

[RReverser]

FWIW I tried all the versions backwards one by one, and currently installing nightly-2017-12-16 seems to be the latest that works (if you're using VSCode, just set rust-client.channel to this, reload window and it will guide you through the installation process).

[albel727]

nightly-2017-12-16

And the latest rustfmt-nightly didn't compile against it for me, which was the reason I have upgraded the toolchain in the first place, and now I have no RLS. Indispensable core development tools randomly unavailable... not to mention the usual clippy story... All this is quite disappointing, I must say.