"os": "none",

Compiling avr-device v0.2.1warning: target json file contains unused fields: target-env, target-vendorerror: cannot find macro`llvm_asm`in this scope --> /home/mike/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/avr-device-0.2.1/src/asm.rs:6:14|6|     unsafe { llvm_asm!("nop") }|              ^^^^^^^^error: cannot find macro`llvm_asm`in this scope  --> /home/mike/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/avr-device-0.2.1/src/asm.rs:12:14|12|     unsafe { llvm_asm!("sleep") }|              ^^^^^^^^error: cannot find macro`llvm_asm`in this scope  --> /home/mike/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/avr-device-0.2.1/src/asm.rs:18:14|18|     unsafe { llvm_asm!("wdr") }|              ^^^^^^^^error: cannot find macro`llvm_asm`in this scope  --> /home/mike/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/avr-device-0.2.1/src/interrupt.rs:17:9|17|         llvm_asm!(|         ^^^^^^^^error: cannot find macro`llvm_asm`in this scope  --> /home/mike/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/avr-device-0.2.1/src/interrupt.rs:30:5|30|     llvm_asm!(|     ^^^^^^^^error: cannot find macro`llvm_asm`in this scope  --> /home/mike/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/avr-device-0.2.1/src/interrupt.rs:46:9|46|         llvm_asm!(|         ^^^^^^^^error[E0635]: unknown feature`llvm_asm`  --> /home/mike/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/avr-device-0.2.1/src/lib.rs:23:12|23|#![feature(llvm_asm)]|            ^^^^^^^^For more information about this error, try`rustc --explain E0635`.warning:`avr-device` (lib) generated 1 warningerror: could not compile`avr-device` (lib) due to 7 previous errors; 1 warning emitted

Default host: x86_64-unknown-linux-gnurustup home:  /home/mike/.rustupinstalled toolchains--------------------stable-x86_64-unknown-linux-gnunightly-2024-03-22-x86_64-unknown-linux-gnunightly-x86_64-unknown-linux-gnu (default)active toolchain----------------nightly-x86_64-unknown-linux-gnu (default)rustc 1.87.0-nightly (96cfc7558 2025-02-27)