Rustup Nightly no language support

[alycda]

Summary

I know that a recent issue with nightly was fixed on the RA side, but I've spent HOURS trying to understand why Helix didn't work out of the box for me. I have nightly set in a toolchain file and we recently noticed issues with 1.86 so we are trying 2025-01-03 which seems to be 1.85 but NEITHER 1.86 nor 1.85 from 1/3 will provide any language support with helix. this is easily resolved with rustup override set stable but I'm opening this issue because that wasn't the most obvious solution for me (I was debugging the path to lldb-dap for a bit)

main.rs

fn main() {
    // on this line, begin typing "pr" and expect suggestions like `print` or `println`
    todo!()
}

rust-toolchain

[toolchain]
channel = "nightly"

rustup show
Default host: aarch64-apple-darwin
rustup home:  /Users/davisa/.rustup

installed toolchains
--------------------

stable-aarch64-apple-darwin (default)
stable-x86_64-unknown-linux-gnu
beta-aarch64-apple-darwin
nightly-2024-01-06-aarch64-apple-darwin
nightly-2024-04-15-aarch64-apple-darwin
nightly-2024-11-14-aarch64-apple-darwin
nightly-2024-12-18-aarch64-apple-darwin
nightly-2025-01-01-aarch64-apple-darwin
nightly-2025-01-02-aarch64-apple-darwin
nightly-2025-01-03-aarch64-apple-darwin
nightly-2025-01-04-aarch64-apple-darwin
nightly-2025-01-05-aarch64-apple-darwin
nightly-2025-01-06-aarch64-apple-darwin
nightly-aarch64-apple-darwin

active toolchain
----------------

nightly-aarch64-apple-darwin (overridden by '/Users/davisa/Documents/cs/lc/rust-toolchain')
rustc 1.86.0-nightly (824759493 2025-01-09)

Reproduction Steps

I tried this:

1. hx src/main.rs

I expected this to happen:

type messaging in the top right, autocompletion, etc

Instead, this happened:

no type hints, not autocomplete popups and when I tried Space+K I got "No configured language server supports hover" in the bottom status bar

Helix log

~/.cache/helix/helix.log

...
2025-01-10T00:54:46.579 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:46.580 helix_term::application [DEBUG] received editor event: IdleTimer
2025-01-10T00:54:47.035 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:47.156 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:47.285 helix_term::application [DEBUG] received editor event: IdleTimer
2025-01-10T00:54:47.714 helix_core::auto_pairs [DEBUG] auto pair transaction: Transaction {
    changes: ChangeSet {
        changes: [
            Retain(
                24,
            ),
            Insert(
                "()",
            ),
            Retain(
                16,
            ),
        ],
        len: 40,
        len_after: 42,
    },
    selection: Some(
        Selection {
            ranges: [
                Range {
                    anchor: 25,
                    head: 26,
                    old_visual_position: None,
                },
            ],
            primary_index: 0,
        },
    ),
}
2025-01-10T00:54:47.716 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:47.838 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:47.940 helix_core::auto_pairs [DEBUG] auto pair transaction: Transaction {
    changes: ChangeSet {
        changes: [
            Retain(
                42,
            ),
        ],
        len: 42,
        len_after: 42,
    },
    selection: Some(
        Selection {
            ranges: [
                Range {
                    anchor: 26,
                    head: 27,
                    old_visual_position: None,
                },
            ],
            primary_index: 0,
        },
    ),
}
2025-01-10T00:54:47.942 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:48.063 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:48.192 helix_term::application [DEBUG] received editor event: IdleTimer
2025-01-10T00:54:48.679 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:48.801 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:48.930 helix_term::application [DEBUG] received editor event: IdleTimer
2025-01-10T00:54:49.009 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:49.131 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:49.178 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:49.300 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:49.329 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:49.451 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:49.482 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:49.605 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:49.623 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:49.746 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:49.874 helix_term::application [DEBUG] received editor event: IdleTimer
2025-01-10T00:54:49.927 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:50.049 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:50.177 helix_term::application [DEBUG] received editor event: IdleTimer
2025-01-10T00:54:50.804 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:50.927 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:51.055 helix_term::application [DEBUG] received editor event: IdleTimer
2025-01-10T00:54:51.523 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 2
2025-01-10T00:54:51.774 helix_term::application [DEBUG] received editor event: IdleTimer
2025-01-10T00:54:51.911 helix_term::application [DEBUG] received editor event: Redraw
2025-01-10T00:54:51.912 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 2
2025-01-10T00:54:51.972 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 2
2025-01-10T00:54:52.223 helix_term::application [DEBUG] received editor event: IdleTimer
2025-01-10T00:54:53.297 helix_view::editor [DEBUG] editor status: No configured language server supports hover
2025-01-10T00:54:53.298 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 2
2025-01-10T00:54:53.550 helix_term::application [DEBUG] received editor event: IdleTimer
2025-01-10T00:54:56.627 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 2
2025-01-10T00:54:56.878 helix_term::application [DEBUG] received editor event: IdleTimer
2025-01-10T00:54:57.157 helix_view::view [DEBUG] Syncing view ViewId(2v1) between 2 and 1
2025-01-10T00:54:57.158 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 1
2025-01-10T00:54:57.329 helix_view::view [DEBUG] Syncing view ViewId(2v1) between 1 and 0
2025-01-10T00:54:57.330 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 0
2025-01-10T00:54:57.495 helix_view::editor [DEBUG] editor status: Already at oldest change
2025-01-10T00:54:57.496 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 0
2025-01-10T00:54:57.656 helix_view::editor [DEBUG] editor status: Already at oldest change
2025-01-10T00:54:57.657 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 0
2025-01-10T00:54:57.715 helix_term::application [DEBUG] received editor event: Redraw
2025-01-10T00:54:57.716 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 0
2025-01-10T00:54:57.813 helix_view::editor [DEBUG] editor status: Already at oldest change
2025-01-10T00:54:57.814 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 0
2025-01-10T00:54:57.988 helix_view::editor [DEBUG] editor status: Already at oldest change
2025-01-10T00:54:57.989 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 0
2025-01-10T00:54:58.107 helix_view::editor [DEBUG] editor status: Already at oldest change
2025-01-10T00:54:58.107 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 0
2025-01-10T00:54:58.363 helix_term::application [DEBUG] received editor event: IdleTimer
2025-01-10T00:54:59.050 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 0
2025-01-10T00:54:59.301 helix_term::application [DEBUG] received editor event: IdleTimer
2025-01-10T00:54:59.546 helix_term::commands::typed [DEBUG] quitting...
2025-01-10T00:54:59.547 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 0
2025-01-10T00:55:00.683 helix_view::document [DEBUG] id 2 modified - last saved: 0, current: 0
2025-01-10T00:55:01.518 helix_term::job [DEBUG] waiting on jobs...
2025-01-10T00:55:01.519 helix_term::job [DEBUG] waiting on jobs...

Platform

MacOS

Terminal Emulator

Warp

Installation Method

brew

Helix Version

helix 25.1 (dabfb6c)

[alycda]

• Remove the nightly toolchain file (or specify stable within it)
• or run rustup override set stable