Illegal instruction on raspberry pi

[long568]

Build System:
MacBook M2 + Docker(Debian)
rustup 1.27.1 (54dd3d00f 2024-04-24)
rustc 1.78.0 (9b00956e5 2024-04-29)

Target System:
Raspberry Pi Zero 2 W + Raspberry Pi OS Lite 64bit

There are all aarch64-unknown-linux-gnu, I did some tests and they all worked fine.
Then I added once_cell to the code to build a singleton class. The code compiles fine and runs fine in docker, but after copying it to the Raspberry Pi, I get the aforementioned error:Illegal instruction
I guess it's trying to tell me that my program doesn't match the target instruction architecture.
Then I just delete once_cell and abandon the singleton class, the code works well on Raspberry Pi again.
So strange...

[briansmith]

What is the exact command line you are using to build your application? I'm guessing that this is due to rust-lang/rust#125033.

[matklad]

This is potentially still an issue, but I can't debug this personally, and, as no one felt sufficiently motivated to dig into this so far, let's close this. Chances are this was an upstream rustc issue