Could not able to release a file. getting error: could not compile 'libc'

Question

我对这个语言和编码领域很陌生。编码领域的初学者也是如此。我尝试构建和发布文件但出现错误 Compiling libc v0.2.62

error: Could not compile `libc`

pi@raspberrypi:~/Ganesh_Rust/Real_time/led_blink/src $ cargo run
    Finished dev [unoptimized + debuginfo] target(s) in 0.09s
     Running `/home/pi/Ganesh_Rust/Real_time/led_blink/target/debug/led_blink`
pi@raspberrypi:~/Ganesh_Rust/Real_time/led_blink/src $ cargo build --release
   Compiling libc v0.2.62
error: Could not compile `libc`.

Caused by:
  process didn't exit successfully: `rustc --crate-name build_script_build /home/pi/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.62/build.rs --color always --crate-type bin --emit=dep-info,link -C opt-level=3 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=b79e3ef31fa8c249 -C extra-filename=-b79e3ef31fa8c249 --out-dir /home/pi/Ganesh_Rust/Real_time/led_blink/target/release/build/libc-b79e3ef31fa8c249 -L dependency=/home/pi/Ganesh_Rust/Real_time/led_blink/target/release/deps --cap-lints allow` (signal: 11, SIGSEGV: invalid memory reference)

代码：这个程序是我用 VS 代码编写的，用于在 raspberry pi 3

上闪烁 LED

use rust_gpiozero::*;
use std::thread;
use std::time::Duration;

fn main() {
  //create a new LEd attached to pin 17 of raspberry pi 
  let led = LED::new(17);

  //blink the led 5 times
  for _ in 0.. 5{
      led.on();
      thread::sleep(Duration::from_secs(10));
      led.off();
      thread::sleep(Duration::from_secs(10));
}
}

cargo.toml 文件：

[package]
name = "led_blink"
version = "0.1.0"
authors = ["pi"]
edition = "2018"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]
rust_gpiozero = "0.2.0"

我在 Raspberry pi 上得到输出，但可执行文件和二进制文件很大 (5MB)。所以我想如果我真的发布也许我可以减少大小所以尝试使用 cargo build --release 命令发布但是得到这个错误。

Answer 1

如果您使用的是 rustup 提供的二进制文件，那么这是 known issue upstream。该问题有一个解决方法，即在 Cargo.toml 中设置以下内容：

[profile.release]
codegen-units = 1

作为替代方案，您可以使用 Debian rustc 和 cargo 软件包而不是 rustup，它应该可以正常工作。例如，您可以从 https://packages.debian.org/rustc and https://packages.debian.org/cargo, or you can add an appropriate APT line into /etc/sources.list (see https://deb.debian.org/ 下载软件包）。请注意，Debian 并不总是有最新版本，但它们应该可以使用。

Could not able to release a file. getting error: could not compile 'libc'

Could not able to release a file. getting error: could not compile 'libc'

rust

rust-cargo