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Can't install thumbv7neon-unknown-linux-musleabihf #4408
Description
Verification
- I searched for recent similar issues at https://github.com/rust-lang/rustup/issues?q=is%3Aissue+is%3Aopen%2Cclosed and found no duplicates.
- I am on the latest version of Rustup according to https://github.com/rust-lang/rustup/tags and am still able to reproduce my issue.
Problem
I tried to install thumbv7neon-unknown-linux-musleabihf:
$ rustup target add thumbv7neon-unknown-linux-musleabihf
error: toolchain 'nightly-aarch64-unknown-linux-gnu' does not support target 'thumbv7neon-unknown-linux-musleabihf'
note: you can see a list of supported targets with `rustc --print=target-list`
note: if you are adding support for a new target to rustc itself, see https://rustc-dev-guide.rust-lang.org/building/new-target.html
but
$ rustc --print=target-list | grep neon
thumbv7neon-linux-androideabi
thumbv7neon-unknown-linux-gnueabihf
thumbv7neon-unknown-linux-musleabihf
Rustup version
1.28.2Installed toolchains
Default host: aarch64-unknown-linux-gnu
rustup home: /home/gh-hkBst/.rustup
installed toolchains
--------------------
stable-aarch64-unknown-linux-gnu
nightly-aarch64-unknown-linux-gnu (active, default)
nightly-2025-01-16-aarch64-unknown-linux-gnu
nightly-2025-05-31-aarch64-unknown-linux-gnu
nightly-2025-06-26-aarch64-unknown-linux-gnu
rust_stage1
rust_stage2
active toolchain
----------------
name: nightly-aarch64-unknown-linux-gnu
active because: it's the default toolchain
installed targets:
aarch64-unknown-linux-gnu
thumbv7neon-linux-androideabi
thumbv7neon-unknown-linux-gnueabihfOS version
Linux
Activity
djc commentedon Jul 11, 2025
It's a tier 3 target, so no host tools are available for it:
https://doc.rust-lang.org/nightly/rustc/platform-support.html#tier-3
rami3l commentedon Jul 11, 2025
@hkBst Sorry for the bad experience!
@djc I believe it's rather not about the lack of host tools for tier 3 in this case (@hkBst, according to the logs, uses
aarch64-unknown-linux-gnuas the host), but the lack of any reliable officially prebuilt artifacts for tier 3 targets. This means that rustup simply cannot be used to install the target support in question to your toolchains until https://github.com/rust-lang/rust until it gets promoted to tier 2.Given that there aren't many things that we can do about it, I'm closing this issue as won't fix.
For general directions on compiling tier 3 support from source, see: https://doc.rust-lang.org/nightly/rustc/platform-support/armv7-sony-vita-newlibeabihf.html#building-the-target (replace
armv7-sony-vita-newlibeabihfwith your target).hkBst commentedon Jul 11, 2025
Thanks @rami3l, that explains it.
Perhaps something can still be done about the suboptimal self-contradictory error message?
rami3l commentedon Jul 11, 2025
@hkBst Yes, such an issue is on our roadmap already: #4006