Specific toolchain

[adiibanez]

Is there a way to select a specific toolchain?

I have some issues building crates for ios despite apparently installed targets

aarch64-apple-darwin (installed)
aarch64-apple-ios (installed)
x86_64-apple-ios (installed)
aarch64-apple-ios-sim (installed)

Building...
Compiling proc-macro2 v1.0.93
Compiling unicode-ident v1.0.17
Compiling autocfg v1.4.0
Compiling libc v0.2.169
Compiling memchr v2.7.4
error[E0463]: can't find crate for core
|
= note: the aarch64-apple-ios target may not be installed
= help: consider downloading the target with rustup target add aarch64-apple-ios
= help: consider building the standard library from source with cargo build -Zbuild-std

locally it works when i invoke
rustup run nightly cargo build --target aarch64-apple-ios-sim

Didn't have any luck with rustler-precompiled-action so far configuring before the action:
rustup default nightly
rustup override set nightly