Rustup 1.27.0 incompatible with older macOS

[andersm]

Problem

Trying to run rustup self update on macOS 10.14 fails with the error dyld: cannot load 'rustup-init' (load command 0x80000034 is unknown).

Full output:

$ rustup self update
info: checking for self-update
info: downloading self-update
  rustup updated - (unknown) (from 1.26.0)

dyld: cannot load 'rustup-init' (load command 0x80000034 is unknown)
error: self-updated failed to replace rustup executable

$ uname -a
Darwin Caligari.local 18.7.0 Darwin Kernel Version 18.7.0: Tue Jun 22 19:37:08 PDT 2021; root:xnu-4903.278.70~1/RELEASE_X86_64 x86_64

Steps

1. Run rustup self update
2. There is no step 2.

Possible Solution(s)

No response

Notes

No response

Rustup version

rustup 1.26.0 (5af9b9484 2023-04-05)

Installed toolchains

Default host: x86_64-apple-darwin
rustup home:  /Users/anders/.rustup

stable-x86_64-apple-darwin (default)
rustc 1.76.0 (07dca489a 2024-02-04)

[ehuss]

Thanks for the report!

I believe rustup needs to be built with the environment variable MACOSX_DEPLOYMENT_TARGET: 10.12. See rust-lang/rust#104570 for the details. Newer versions of Xcode technically don't support such an old version of macos, but I believe in this case it shouldn't be necessary to downgrade.

[djc]

@ehuss are you suggesting we/the project should build/release a different binary release for macOS, or that the OP builds their own?

[ehuss]

Yea, rustup itself needs to be built with that set, presumably in https://github.com/rust-lang/rustup/blob/master/ci/actions-templates/macos-builds-template.yaml.

You might also consider this for a point release since it is a tier-1 platform.

[rami3l]

@andersm @correabuscar @dlight A new beta release is available, would you mind trying it out?

[andersm]

@rami3l It seems to work.

$ rustup --version
rustup 1.27.1 (54dd3d00f 2024-04-24)
info: This is the version for the rustup toolchain manager, not the rustc compiler.
info: The currently active `rustc` version is `rustc 1.77.2 (25ef9e3d8 2024-04-09)`

[rami3l]

@WhiteMac @XionWin The stable release is now available, so I'm marking our previous discussions as outdated.