Build failure with `rustc_private` crates on `aarch64-unknown-linux-gnu`

[Alexendoo]

On aarch64-unknown-linux-gnu, with a rustup provided rustc-dev component:

#![feature(rustc_private)]

extern crate rustc_attr;

errors with:

error: /home/alex/.rustup/toolchains/nightly-2022-08-14-aarch64-unknown-linux-gnu/lib/rustlib/aarch64-unknown-linux-gnu/lib/libserde_derive-6dc9fea9ed4dba80.so: cannot allocate memory in static TLS block
 --> src/lib.rs:3:1
  |
3 | extern crate rustc_attr;
  | ^^^^^^^^^^^^^^^^^^^^^^^^

I'll try and see if I can reproduce it with ./x.py to test @bjorn3's suggestion: #99944 (comment)

[Alexendoo]

Couldn't reproduce it with an ./x build --stage 2, tried with download-ci-llvm = false also

Does it have to be cross compiled from a different host?

[bjorn3]

Not sure what is necessary to reproduce it. In any case if you open a PR with the likely fix, I can run a try build on CI which you can then locally install to see if it fixes the issue.