rust-analyzer version: rust-analyzer version: 0.4.2665-standalone [/home/patchmixolydic/.vscode-oss/extensions/rust-lang.rust-analyzer-0.4.2665-linux-x64/server/rust-analyzer]
rustc version: rustc 1.93.0-nightly (34f954f 2025-10-25)
editor or extension: VSCodium, extension version 0.4.2665 (prerelease)
relevant settings:
.cargo/config.toml:
[build]
target = "x86_64-unknown-snowkernel.json"
x86_64-unknown-snowkernel.json:
{
"arch": "x86_64",
"code-model": "kernel",
"data-layout": "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128",
"disable-redzone": true,
"executables": true,
"features": "-mmx,-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-avx,-avx2,+soft-float",
"linker": "rust-lld",
"linker-flavor": "ld.lld",
"llvm-target": "x86_64-unknown-none-elf",
"max-atomic-width": 64,
"os": "none",
"panic-strategy": "abort",
"plt-by-default": false,
"position-independent-executables": false,
"relocation-model": "static",
"rustc-abi": "x86-softfloat",
"target-c-int-width": 32,
"target-endian": "little",
"target-pointer-width": 64
}repository link (if public, optional): MCVE
Opening src/main.rs in VSCodium causes rust-analyzer to fail with a warning:
Error log
[Error - 12:04:22 PM] Server process exited with code 0.
2025-11-02T12:04:22.917411284-06:00 WARN `cargo metadata` failed and returning succeeded result with `--no-deps` error=`cargo metadata` exited with an error: error: target path "x86_64-unknown-snowkernel.json" is not a valid file
Caused by:
No such file or directory (os error 2)
Stack backtrace:
0: anyhow::error::<impl core::convert::From<E> for anyhow::Error>::from
1: project_model::cargo_workspace::FetchMetadata::exec
2: project_model::sysroot::Sysroot::load_workspace
3: std::sys::backtrace::__rust_begin_short_backtrace
4: core::ops::function::FnOnce::call_once{{vtable.shim}}
5: std::sys::thread::unix::Thread::new::thread_start
6: <unknown>
7: <unknown>
2025-11-02T12:04:23.21419815-06:00 WARN `cargo metadata` failed and returning succeeded result with `--no-deps` error=`cargo metadata` exited with an error: error: target path "x86_64-unknown-snowkernel.json" is not a valid file
Caused by:
No such file or directory (os error 2)
Stack backtrace:
0: anyhow::error::<impl core::convert::From<E> for anyhow::Error>::from
1: project_model::cargo_workspace::FetchMetadata::exec
2: project_model::sysroot::Sysroot::load_workspace
3: std::sys::backtrace::__rust_begin_short_backtrace
4: core::ops::function::FnOnce::call_once{{vtable.shim}}
5: std::sys::thread::unix::Thread::new::thread_start
6: <unknown>
7: <unknown>
2025-11-02T12:04:23.4442489-06:00 WARN `cargo metadata` failed and returning succeeded result with `--no-deps` error=`cargo metadata` exited with an error: error: target path "x86_64-unknown-snowkernel.json" is not a valid file
Caused by:
No such file or directory (os error 2)
Stack backtrace:
0: anyhow::error::<impl core::convert::From<E> for anyhow::Error>::from
1: project_model::cargo_workspace::FetchMetadata::exec
2: project_model::sysroot::Sysroot::load_workspace
3: std::sys::backtrace::__rust_begin_short_backtrace
4: core::ops::function::FnOnce::call_once{{vtable.shim}}
5: std::sys::thread::unix::Thread::new::thread_start
6: <unknown>
7: <unknown>
2025-11-02T12:04:23.56289269-06:00 ERROR Received compiler message for unknown package: path+file:///home/patchmixolydic/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/compiler-builtins/compiler-builtins#compiler_builtins@0.1.160
path+file:///home/patchmixolydic/Programming/Rust/ra-target-json#0.1.0
2025-11-02T12:04:23.567259565-06:00 ERROR Received compiler message for unknown package: path+file:///home/patchmixolydic/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/compiler-builtins/compiler-builtins#compiler_builtins@0.1.160
path+file:///home/patchmixolydic/Programming/Rust/ra-target-json#0.1.0
2025-11-02T12:04:25.468548069-06:00 WARN overly long loop turn took 152.574921ms (event handling took 151.982301ms): PrimeCaches(End { cancelled: false })
In the project this was minimized from, this also breaks autocompletion and typechecking (eg. calling <[T]>::iter on SpinMutexGuard<'_, Vec<T>> produces an unknown type), though it seems to work in simpler cases.
Running cargo metadata manually seems to work fine. The target spec is accepted by rustc (via cargo build/cargo run) and can successfully build a kernel.
rust-analyzer version: rust-analyzer version: 0.4.2665-standalone [/home/patchmixolydic/.vscode-oss/extensions/rust-lang.rust-analyzer-0.4.2665-linux-x64/server/rust-analyzer]
rustc version: rustc 1.93.0-nightly (34f954f 2025-10-25)
editor or extension: VSCodium, extension version 0.4.2665 (prerelease)
relevant settings:
.cargo/config.toml:x86_64-unknown-snowkernel.json:{ "arch": "x86_64", "code-model": "kernel", "data-layout": "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128", "disable-redzone": true, "executables": true, "features": "-mmx,-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-avx,-avx2,+soft-float", "linker": "rust-lld", "linker-flavor": "ld.lld", "llvm-target": "x86_64-unknown-none-elf", "max-atomic-width": 64, "os": "none", "panic-strategy": "abort", "plt-by-default": false, "position-independent-executables": false, "relocation-model": "static", "rustc-abi": "x86-softfloat", "target-c-int-width": 32, "target-endian": "little", "target-pointer-width": 64 }repository link (if public, optional): MCVE
Opening
src/main.rsin VSCodium causes rust-analyzer to fail with a warning:Error log
In the project this was minimized from, this also breaks autocompletion and typechecking (eg. calling
<[T]>::iteronSpinMutexGuard<'_, Vec<T>>produces an unknown type), though it seems to work in simpler cases.Running
cargo metadatamanually seems to work fine. The target spec is accepted byrustc(viacargo build/cargo run) and can successfully build a kernel.