From 03102e2bee4c7124c6f9f0193b1dc378ec1bfe5e Mon Sep 17 00:00:00 2001 From: Samuel Moelius Date: Sun, 19 Oct 2025 06:02:39 -0400 Subject: [PATCH] Expand `RUSTUP_TOOLCHAIN_SOURCE`'s documentation --- doc/user-guide/src/environment-variables.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/doc/user-guide/src/environment-variables.md b/doc/user-guide/src/environment-variables.md index a0930aa32f..bb9dc3d512 100644 --- a/doc/user-guide/src/environment-variables.md +++ b/doc/user-guide/src/environment-variables.md @@ -72,7 +72,7 @@ - `RUSTUP_CONCURRENT_DOWNLOADS` *unstable* (default: the number of components to download). Controls the number of downloads made concurrently. -- `RUSTUP_TOOLCHAIN_SOURCE` *unstable*. Set by rustup to tell proxied tools how `RUSTUP_TOOLCHAIN` was determined. +- `RUSTUP_TOOLCHAIN_SOURCE` *unstable*. Set by rustup to tell proxied tools how `RUSTUP_TOOLCHAIN` was determined. Non-rustup tools should not set this environment variable, except insofar as to mirror an earlier invocation from rustup. [directive syntax]: https://docs.rs/tracing-subscriber/latest/tracing_subscriber/filter/struct.EnvFilter.html#directives [dc]: https://docs.docker.com/storage/storagedriver/overlayfs-driver/#modifying-files-or-directories