rust does not install binaries under ~/.cargo

[michaelrommel]

Hi,

according to https://mise.jdx.dev/lang/rust.html:

By default, mise uses the default location of rustup/cargo (~/.rustup and ~/.cargo),

compiled binaries should land in ~/.cargo/bin. But instead, mise sets the environment variable to the mise directory like:

CARGO_HOME=/home/<username>/.local/share/mise/installs/rust/1.85.0

Did I overlook something or is the documentation outdated or is this simply a bug? I just used mise install rust@latest and mise use -g rust@latest and activated the shell extension. Then immediately I get this wrong CARGO_HOME var.

[andrewthauer]

This is probably what you are looking for https://mise.jdx.dev/lang/rust.html#settings

[jdx]

those are symlinks

[michaelrommel]

I am not following. Where are the symlinks supposed to be? I have tried the standard installation procedure both an existing and empty ~/.cargo/bin or a non-existing. In all cases, after installation, I

> which mise
/home/rommel/bin/mise
> mise ls
Tool    Version  Source                      Requested
go      1.23.3   ~/.config/mise/config.toml  latest
lua     5.4.7    ~/.config/mise/config.toml  latest
node    22.11.0  ~/.config/mise/config.toml  22
node    23.3.0
python  3.11.8
python  3.13.0   ~/.config/mise/config.toml  latest
rommel  which cargo
cargo not found
rommel  which rustc
rustc not found
> cat .config/mise/config.toml
[tools]
go = "latest"
node = "22"
python = "latest"
lua = "latest"
> ls -la .cargo/bin
total 8
drwxr-xr-x 2 rommel rommel 4096 Feb 25 15:28 .
drwxr-xr-x 3 rommel rommel 4096 Feb 25 15:28 ..
> mise install rust
info: downloading installer
info: profile set to 'default'
info: default host triple is x86_64-unknown-linux-gnu
info: syncing channel updates for '1.85.0-x86_64-unknown-linux-gnu'
info: latest update on 2025-02-20, rust version 1.85.0 (4d91de4e4 2025-02-17)
info: downloading component 'cargo'
info: downloading component 'clippy'
info: downloading component 'rust-docs'
info: retrying download for 'https://static.rust-lang.org/dist/2025-02-20/rust-docs-1.85.0-x86_64-unknown-linux-gnu.tar.xz'
info: retrying download for 'https://static.rust-lang.org/dist/2025-02-20/rust-docs-1.85.0-x86_64-unknown-linux-gnu.tar.xz'
info: retrying download for 'https://static.rust-lang.org/dist/2025-02-20/rust-docs-1.85.0-x86_64-unknown-linux-gnu.tar.xz'
info: retrying download for 'https://static.rust-lang.org/dist/2025-02-20/rust-docs-1.85.0-x86_64-unknown-linux-gnu.tar.xz'
error: component download failed for rust-docs-x86_64-unknown-linux-gnu: could not download file from 'https://static.rust-lang.org/dist/2025-02-20/rust-docs-1.85.0-x86_64-unknown-linux-gnu.tar.xz' to '/home/rommel/.local/share/mise/installs/rust/1.85.0/downloads/350808ad599c7910804d747b3cfc01561afca0ff3729ecdb344399f89a651efb.partial'
mise [email protected] ✓ installed
> eval "$(mise activate)"
> mise ls
Tool    Version  Source                      Requested
go      1.23.3   ~/.config/mise/config.toml  latest
lua     5.4.7    ~/.config/mise/config.toml  latest
node    22.11.0  ~/.config/mise/config.toml  22
node    23.3.0
python  3.11.8
python  3.13.0   ~/.config/mise/config.toml  latest
rust    1.85.0
> mise use -g rust
mise ~/.config/mise/config.toml tools: [email protected]
> which cargo
/home/rommel/.local/share/mise/installs/rust/1.85.0/bin/cargo
> rustup default stable
info: syncing channel updates for 'stable-x86_64-unknown-linux-gnu'
info: latest update on 2025-02-20, rust version 1.85.0 (4d91de4e4 2025-02-17)
info: downloading component 'cargo'
info: downloading component 'rust-std'
info: downloading component 'rustc'
 69.5 MiB /  69.5 MiB (100 %)  45.3 MiB/s in  1s ETA:  0s
info: installing component 'cargo'
info: installing component 'rust-std'
 26.7 MiB /  26.7 MiB (100 %)  18.6 MiB/s in  1s ETA:  0s
info: installing component 'rustc'
 69.5 MiB /  69.5 MiB (100 %)  19.8 MiB/s in  3s ETA:  0s
info: default toolchain set to 'stable-x86_64-unknown-linux-gnu'

  stable-x86_64-unknown-linux-gnu installed - rustc 1.85.0 (4d91de4e4 2025-02-17)

> cargo install silicon
[... output omitted...]
> which silicon
/home/rommel/.local/share/mise/installs/rust/1.85.0/bin/silicon
> ls -la /home/rommel/.local/share/mise/installs/rust/1.85.0/bin/silicon
-rwxr-xr-x 1 rommel rommel 7484840 Feb 25 16:08 /home/rommel/.local/share/mise/installs/rust/1.85.0/bin/silicon

At this point I would have expected that the silicon binary would be installed under ~/.cargo/bin.

Yes, probably I could now modify some variables in the config.toml file, but I just wanted to know, if it is a bug or not.If I change now the config to:

> cat .config/mise/config.toml
[tools]
go = "latest"
node = "22"
python = "latest"
lua = "latest"
rust = { version = "latest", cargo_home = "~/.cargo" }
> cargo install --force silicon
[...omitted...]
> which silicon
/home/rommel/.local/share/mise/installs/rust/1.85.0/bin/silicon
> find .cargo
.cargo
.cargo/bin

It does not change the situation.

 mise --version
              _                                        __
   ____ ___  (_)_______        ___  ____        ____  / /___ _________
  / __ `__ \/ / ___/ _ \______/ _ \/ __ \______/ __ \/ / __ `/ ___/ _ \
 / / / / / / (__  )  __/_____/  __/ / / /_____/ /_/ / / /_/ / /__/  __/
/_/ /_/ /_/_/____/\___/      \___/_/ /_/     / .___/_/\__,_/\___/\___/
                                            /_/
2025.2.8 linux-x64 (2025-02-25)

[michaelrommel]

I think I found the error - there was an older rust 'plugin' installed. I will try now all of this again. Sorry for not detecting that earlier.

[michaelrommel]

Now it works as expected. Only when I ran mise doctor the conflict showed. I will remember this for the future.