rustup issues

Lazy installation of targets listed in rust-toolchain.toml

1

### Problem you are trying to solve My team builds our software for 5 different Rust targets: * aarch64-apple-darwin * x86_64-apple-darwin * x86_64-unknown-linux-gnu * wasm32-unknown-unknown * x86_64-pc-windows-msvc When building for...

vorporeal

enhancement

Undocumented environment variables?

5

### Problem you are trying to solve https://rust-lang.github.io/rustup/environment-variables.html https://rust-lang.github.io/rustup/dev-guide/tips-and-tricks.html After reading the `rustup` code a little (https://github.com/rust-lang/rust-forge/issues/760), I found out that not all the environment variables it supports are documented....

cher-nov

question

"rustup add target ..." could warn user that they meant "rustup target add ..."

2

### Problem you are trying to solve The following error message isn't as helpful as it could be: ``` $ rustup add target x86_64-unknown-linux-gnux32 error: unrecognized subcommand 'x86_64-unknown-linux-gnux32' Usage: rustup...

gmatht

enhancement

Support `.rust-toolchain.toml`

15

### Problem you are trying to solve In the Linux kernel, we would have liked to take advantage of `rustup`'s `rust-toolchain.toml` feature to simplify our Quick Start instructions (see https://github.com/Rust-for-Linux/linux/issues/953)...

ojeda

enhancement

Improve tips when installing tier 3 targets such as `wasm32-wasip2`

1

### Verification - [X] I searched for recent similar issues at https://github.com/rust-lang/rustup/issues?q=is%3Aissue+is%3Aopen%2Cclosed and found no duplicates. - [X] I am on the latest version of Rustup according to https://github.com/rust-lang/rustup/tags and...

AaronFriel

enhancement

rustup update error: detected conflict

2

I run the commands PS E:\dev> rustc --version rustc 1.74.1 (a28077b28 2023-12-04) PS E:\dev> cargo --version cargo 1.74.1 (ecb9851af 2023-10-18) PS E:\dev> rustup update after download, it prompts: ``` nfo:...

Donald2010

Add on_log_quit.

5

Request for comments; Closes https://github.com/rust-lang/rustup/issues/2590 I was unable to find a working at_exit that is publicly available in stable rust today. So I decided to post this and ask what...

guilt

rustup show should include toolchain link paths (maybe only with `show -v`)

2

### Problem you are trying to solve I often need a reminder about which paths in my local development map to which rustup toolchain identifiers. As far as I can...

pnkfelix