Started to panic on build script after update

[Ddystopia]

rust-analyzer version: rust-analyzer set (9cd7a5958f 2025-10-06)

rustc version: rustc 1.92.0-nightly (8392220 2025-10-05)

editor or extension: neovim

relevant settings: -

repository link (if public, optional): https://github.com/Ddystopia/ra6m3-rtic (useless for you probably, needs specific env variables for C compiler and libraries)

Everything works fine there: rust-analyzer set (b1ff108869 2025-07-11)

Now, I am getting this (pretty formatted):

[START][2025-10-08 12:35:13] LSP logging initiated
[ERROR][2025-10-08 12:35:13] .../vim/lsp/rpc.lua:770	"rpc"	"/home/ddystopia/.cargo/bin/rust-analyzer"	"stderr"	'2025-10-08T12:35:13.646119016+02:00  WARN notify error: No such file or directory (os error 2) about ["/home/ddystopia/.config/rust-analyzer/rust-analyzer.toml"]'
[ERROR][2025-10-08 12:35:13] .../vim/lsp/rpc.lua:770	"rpc"	"/home/ddystopia/.cargo/bin/rust-analyzer"	"stderr"	"\nthread 'Worker5' (1719818) panicked at crates/project-model/src/build_dependencies.rs:300:21:\ninternal error: entered unreachable code: Received compiler message for unknown package: <redacted: lots of packages>
[ERROR][2025-10-08 12:35:13]
   0:     0x5a81d07575be - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h6669656a4f8f3b5a
   
   1:     0x5a81cefb5eff - core::fmt::write::ha5e19fa14f12dd78
   2:     0x5a81d075682f - std::io::Write::write_fmt::heb45c07d9683d402
   3:     0x5a81d0757413 - std::sys::backtrace::BacktraceLock::print::hb0b6a19e74a681dd
   4:     0x5a81d0756de2 - std::panicking::default_hook::had85215a8e6d7509
   5:     0x5a81cef636ce - base_db::DbPanicContext::enter::set_hook::{{closure}}::h4a919b043bb68a5f
   6:     0x5a81d075646d - std::panicking::panic_with_hook::h2d59c212e39e78ca
   7:     0x5a81d077fbf8 - std::panicking::panic_handler::{{closure}}::h41af77c8fb5f4c83
   8:     0x5a81d077fb59 - std::sys::backtrace::__rust_end_short_backtrace::h0795954f3c683fbc
   9:     0x5a81d077fb4e - __rustc[38e0a62eac12ee08]::rust_begin_unwind
  10:     0x5a81cefb118f - core::panicking::panic_fmt::h570277b8f8b588d0
  11:     0x5a81d023e381 - project_model::build_dependencies::WorkspaceBuildScripts::run_per_ws::{{closure}}::h51c5816cb3542076
  12:     0x5a81d02354ac - project_model::build_dependencies::WorkspaceBuildScripts::run_command::{{closure}}::h0b4597eea45441df
  13:     0x5a81d07a9e4a - stdx::process::streaming_output::{{closure}}::ha7dadb6434531061
  14:     0x5a81d07a982e - stdx::process::streaming_output::hb575197f201496b4
  15:     0x5a81d07aa1ae - stdx::process::spawn_with_streaming_output::he5cabc0c42b0c6a8
  16:     0x5a81d02330a9 - project_model::workspace::ProjectWorkspace::run_build_scripts::h518c158974640037
  17:     0x5a81d051c560 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h9f7f4802e213cb27
  18:     0x5a81d07a26af - std::sys::backtrace::__rust_begin_short_backtrace::h993f45a2a2c2ddf5
  19:     0x5a81d07a9296 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h2c70ea7295837e60
  20:     0x5a81d078addf - std::sys::thread::unix::Thread::new::thread_start::h8abc8cd43373286d
  21:     0x781f314969cb - <unknown>
  23:     0x781f3151aa0c - <unknown>
  23:                0x0 - <unknown>

Raw

[ERROR][2025-10-08 12:35:13] .../vim/lsp/rpc.lua:770 "rpc" "/home/ddystopia/.cargo/bin/rust-analyzer" "stderr" '2025-10-08T12:35:13.646119016+02:00 WARN notify error: No such file or directory (os error 2) about ["/home/ddystopia/.config/rust-analyzer/rust-analyzer.toml"]\n' [ERROR][2025-10-08 12:35:13] .../vim/lsp/rpc.lua:770 "rpc" "/home/ddystopia/.cargo/bin/rust-analyzer" "stderr" "\nthread 'Worker5' (1719818) panicked at crates/project-model/src/build_dependencies.rs:300:21:\ninternal error: entered unreachable code: Received compiler message for unknown package: registry+https://github.com/rust-lang/crates.io-index#linux-raw-sys@0.4.15\n registry+https://github.com/rust-lang/crates.io-index#num_enum_derive@0.7.3, path+file:///home/ddystopia/job/minimq#0.10.0, registry+https://github.com/rust-lang/crates.io-index#heck@0.5.0, registry+https://github.com/rust-lang/crates.io-index#lazycell@1.3.0, registry+https://github.com/rust-lang/crates.io-index#errno@0.3.12, registry+https://github.com/rust-lang/crates.io-index#nb@0.1.3, registry+https://github.com/rust-lang/crates.io-index#digest@0.10.7, registry+https://github.com/rust-lang/crates.io-index#minimal-lexical@0.2.1, registry+https://github.com/rust-lang/crates.io-index#strum@0.27.1, registry+https://github.com/rust-lang/crates.io-index#rustix@0.38.44, registry+https://github.com/rust-lang/crates.io-index#thiserror-impl@2.0.12, registry+https://github.com/rust-lang/crates.io-index#bitfield@0.13.2, git+https://github.com/probe-rs/rtt-target.git#rtt-target@0.6.1, registry+https://github.com/rust-lang/crates.io-index#thiserror@2.0.12, registry+https://github.com/rust-lang/crates.io-index#ryu@1.0.20, registry+https://github.com/rust-lang/crates.io-index#rtic-monotonics@2.0.3, registry+https://github.com/rust-lang/crates.io-index#futures-task@0.3.31, registry+https://github.com/rust-lang/crates.io-index#itertools@0.12.1, registry+https://github.com/rust-lang/crates.io-index#log@0.4.27, registry+https://github.com/rust-lang/crates.io-index#portable-atomic@1.11.0, registry+https://github.com/rust-lang/crates.io-index#prettyplease@0.2.32, registry+https://github.com/rust-lang/crates.io-index#rand_chacha@0.3.1, registry+https://github.com/rust-lang/crates.io-index#konst_proc_macros@0.3.10, registry+https://github.com/rust-lang/crates.io-index#proc-macro-error2@2.0.1, registry+https://github.com/rust-lang/crates.io-index#rand_core@0.6.4, registry+https://github.com/rust-lang/crates.io-index#convert_case@0.4.0, registry+https://github.com/rust-lang/crates.io-index#rtic-common@1.0.0, registry+https://github.com/rust-lang/crates.io-index#serde-json-core@0.6.0, registry+https://github.com/rust-lang/crates.io-index#stable_deref_trait@1.2.0, registry+https://github.com/rust-lang/crates.io-index#walkdir@2.5.0, registry+https://github.com/rust-lang/crates.io-index#libloading@0.8.7, registry+https://github.com/rust-lang/crates.io-index#rtic-core@1.0.0, registry+https://github.com/rust-lang/crates.io-index#either@1.15.0, registry+https://github.com/rust-lang/crates.io-index#nb@1.1.0, registry+https://github.com/rust-lang/crates.io-index#build_cfg@1.1.0, registry+https://github.com/rust-lang/crates.io-index#byteorder@1.5.0, registry+https://github.com/rust-lang/crates.io-index#lhash@1.1.0, registry+https://github.com/rust-lang/crates.io-index#cexpr@0.6.0, registry+https://github.com/rust-lang/crates.io-index#num@0.3.1, registry+https://github.com/rust-lang/crates.io-index#num-traits@0.2.19, registry+https://github.com/rust-lang/crates.io-index#nom@7.1.3, registry+https://github.com/rust-lang/crates.io-index#konst_kernel@0.3.15, registry+https://github.com/rust-lang/crates.io-index#equivalent@1.0.2, registry+https://github.com/rust-lang/crates.io-index#ppv-lite86@0.2.21, registry+https://github.com/rust-lang/crates.io-index#hashbrown@0.15.3, registry+https://github.com/rust-lang/crates.io-index#num-iter@0.1.45, registry+https://github.com/rust-lang/crates.io-index#generic-array@0.14.7, registry+https://github.com/rust-lang/crates.io-index#hash32@0.3.1, registry+https://github.com/rust-lang/crates.io-index#smoltcp@0.12.0, registry+https://github.com/rust-lang/crates.io-index#regex-automata@0.4.9, registry+https://github.com/rust-lang/crates.io-index#which@4.4.2, registry+https://github.com/rust-lang/crates.io-index#glob@0.3.2, registry+https://github.com/rust-lang/crates.io-index#typewit@1.11.0, registry+https://github.com/rust-lang/crates.io-index#sha2@0.10.9, registry+https://github.com/rust-lang/crates.io-index#build_cfg_shared@1.1.0, registry+https://github.com/rust-lang/crates.io-index#crypto-common@0.1.6, registry+https://github.com/rust-lang/crates.io-index#bare-metal@1.0.0, registry+https://github.com/rust-lang/crates.io-index#rustc_version@0.2.3, registry+https://github.com/rust-lang/crates.io-index#unicode-ident@1.0.18, registry+https://github.com/rust-lang/crates.io-index#version_check@0.9.5, registry+https://github.com/rust-lang/crates.io-index#quote@1.0.40, registry+https://github.com/rust-lang/crates.io-index#futures-lite@2.6.0, registry+https://github.com/rust-lang/crates.io-index#libc@0.2.172, registry+https://github.com/rust-lang/crates.io-index#regex@1.11.1, git+https://github.com/rtic-rs/rtic#rtic-macros@2.2.0, registry+https://github.com/rust-lang/crates.io-index#build_cfg_macros@1.1.0, git+https://github.com/rtic-rs/rtic#2.2.0, registry+https://github.com/rust-lang/crates.io-index#rustversion@1.0.20, registry+https://github.com/rust-lang/crates.io-index#embedded-io-async@0.6.1, registry+https://github.com/rust-lang/crates.io-index#extend_mut@0.4.2, registry+https://github.com/rust-lang/crates.io-index#ra6m3-fsp-pac@0.1.10, registry+https://github.com/rust-lang/crates.io-index#semver@0.9.0, registry+https://github.com/rust-lang/crates.io-index#syn@2.0.101, registry+https://github.com/rust-lang/crates.io-index#volatile-register@0.2.2, registry+https://github.com/rust-lang/crates.io-index#futures-util@0.3.31, registry+https://github.com/rust-lang/crates.io-index#zerocopy@0.8.25, registry+https://github.com/rust-lang/crates.io-index#picoserve@0.15.1, registry+https://github.com/rust-lang/crates.io-index#pin-utils@0.1.0, registry+https://github.com/rust-lang/crates.io-index#regex-syntax@0.8.5, registry+https://github.com/rust-lang/crates.io-index#same-file@1.0.6, registry+https://github.com/rust-lang/crates.io-index#semver@1.0.26, registry+https://github.com/rust-lang/crates.io-index#bitflags@1.3.2, registry+https://github.com/rust-lang/crates.io-index#serde@1.0.219, registry+https://github.com/rust-lang/crates.io-index#static_cell@2.1.0, registry+https://github.com/rust-lang/crates.io-index#typenum@1.18.0, registry+https://github.com/rust-lang/crates.io-index#data-encoding@2.9.0, registry+https://github.com/rust-lang/crates.io-index#num-complex@0.3.1, registry+https://github.com/rust-lang/crates.io-index#semver-parser@0.7.0, registry+https://github.com/rust-lang/crates.io-index#embedded-hal-async@1.0.0, registry+https://github.com/rust-lang/crates.io-index#bare-metal@0.2.5, registry+https://github.com/rust-lang/crates.io-index#rustc-hash@1.1.0, registry+https://github.com/rust-lang/crates.io-index#replace_with@0.1.7, registry+https://github.com/rust-lang/crates.io-index#num-rational@0.3.2, registry+https://github.com/rust-lang/crates.io-index#ufmt-write@0.1.0, registry+https://github.com/rust-lang/crates.io-index#bindgen@0.69.5, registry+https://github.com/rust-lang/crates.io-index#futures-core@0.3.31, path+file:///home/ddystopia/code/ra6m3-rtic#project@0.1.0, registry+https://github.com/rust-lang/crates.io-index#once_cell@1.21.3, registry+https://github.com/rust-lang/crates.io-index#fugit@0.3.7, registry+https://github.com/rust-lang/crates.io-index#derive_more@0.99.20, registry+https://github.com/rust-lang/crates.io-index#proc-macro2@1.0.95, registry+https://github.com/rust-lang/crates.io-index#indexmap@2.9.0, registry+https://github.com/rust-lang/crates.io-index#gcd@2.3.0, registry+https://github.com/rust-lang/crates.io-index#memchr@2.7.4, registry+https://github.com/rust-lang/crates.io-index#proc-macro-error-attr2@2.0.0, registry+https://github.com/rust-lang/crates.io-index#picoserve_derive@0.1.3, registry+https://github.com/rust-lang/crates.io-index#shlex@1.3.0, registry+https://github.com/rust-lang/crates.io-index#num_enum@0.7.3, registry+https://github.com/rust-lang/crates.io-index#diatomic-waker@0.2.3, registry+https://github.com/rust-lang/crates.io-index#bitflags@2.9.1, path+file:///home/ddystopia/job/ra/ra-fsp-rs#0.1.10, registry+https://github.com/rust-lang/crates.io-index#critical-section@1.2.0, registry+https://github.com/rust-lang/crates.io-index#managed@0.8.0, registry+https://github.com/rust-lang/crates.io-index#embedded-time@0.12.1, registry+https://github.com/rust-lang/crates.io-index#embedded-hal@1.0.0, registry+https://github.com/rust-lang/crates.io-index#embedded-nal@0.9.0, registry+https://github.com/rust-lang/crates.io-index#embedded-io@0.6.1, registry+https://github.com/rust-lang/crates.io-index#num-integer@0.1.46, registry+https://github.com/rust-lang/crates.io-index#serde_derive@1.0.219, registry+https://github.com/rust-lang/crates.io-index#rustc_version@0.4.1, registry+https://github.com/rust-lang/crates.io-index#smlang-macros@0.8.0, registry+https://github.com/rust-lang/crates.io-index#cortex-m@0.7.7, registry+https://github.com/rust-lang/crates.io-index#typewit_proc_macros@1.8.1, registry+https://github.com/rust-lang/crates.io-index#embedded-hal@0.2.7, registry+https://github.com/rust-lang/crates.io-index#lazy_static@1.5.0, registry+https://github.com/rust-lang/crates.io-index#bit_field@0.10.2, registry+https://github.com/rust-lang/crates.io-index#autocfg@1.4.0, registry+https://github.com/rust-lang/crates.io-index#cfg-if@1.0.0, registry+https://github.com/rust-lang/crates.io-index#clang-sys@1.8.1, registry+https://github.com/rust-lang/crates.io-index#cortex-m-semihosting@0.5.0, registry+https://github.com/rust-lang/crates.io-index#aho-corasick@1.1.3, registry+https://github.com/rust-lang/crates.io-index#block-buffer@0.10.4, registry+https://github.com/rust-lang/crates.io-index#cc@1.2.23, registry+https://github.com/rust-lang/crates.io-index#heapless@0.8.0, registry+https://github.com/rust-lang/crates.io-index#vcell@0.1.3, path+file:///home/ddystopia/job/ra/ra-fsp-sys#0.1.10, registry+https://github.com/rust-lang/crates.io-index#varint-rs@2.2.0, registry+https://github.com/rust-lang/crates.io-index#konst@0.3.16, registry+https://github.com/rust-lang/crates.io-index#smlang@0.8.0, registry+https://github.com/rust-lang/crates.io-index#void@1.0.2, registry+https://github.com/rust-lang/crates.io-index#rtic-time@2.0.0, registry+https://github.com/rust-lang/crates.io-index#const-sha1@0.3.0, registry+https://github.com/rust-lang/crates.io-index#strum_macros@0.27.1, registry+https://github.com/rust-lang/crates.io-index#string_morph@0.1.0, registry+https://github.com/rust-lang/crates.io-index#const_panic@0.2.12, registry+https://github.com/rust-lang/crates.io-index#syn@1.0.109, registry+https://github.com/rust-lang/crates.io-index#pin-project-lite@0.2.16\nstack backtrace:\n" [ERROR][2025-10-08 12:35:13] .../vim/lsp/rpc.lua:770 "rpc" "/home/ddystopia/.cargo/bin/rust-analyzer" "stderr" " 0: 0x5a81d07575be - ::fmt::h6669656a4f8f3b5a\n 1: 0x5a81cefb5eff - core::fmt::write::ha5e19fa14f12dd78\n 2: 0x5a81d075682f - std::io::Write::write_fmt::heb45c07d9683d402\n 3: 0x5a81d0757413 - std::sys::backtrace::BacktraceLock::print::hb0b6a19e74a681dd\n 4: 0x5a81d0756de2 - std::panicking::default_hook::had85215a8e6d7509\n 5: 0x5a81cef636ce - base_db::DbPanicContext::enter::set_hook::{{closure}}::h4a919b043bb68a5f\n" [ERROR][2025-10-08 12:35:13] .../vim/lsp/rpc.lua:770 "rpc" "/home/ddystopia/.cargo/bin/rust-analyzer" "stderr" " 6: 0x5a81d075646d - std::panicking::panic_with_hook::h2d59c212e39e78ca\n 7: 0x5a81d077fbf8 - std::panicking::panic_handler::{{closure}}::h41af77c8fb5f4c83\n 8: 0x5a81d077fb59 - std::sys::backtrace::__rust_end_short_backtrace::h0795954f3c683fbc\n 9: 0x5a81d077fb4e - __rustc[38e0a62eac12ee08]::rust_begin_unwind\n 10: 0x" [ERROR][2025-10-08 12:35:13] .../vim/lsp/rpc.lua:770 "rpc" "/home/ddystopia/.cargo/bin/rust-analyzer" "stderr" "5a81cefb118f - core::panicking::panic_fmt::h570277b8f8b588d0\n 11: 0x5a81d023e381 - project_model::build_dependencies::WorkspaceBuildScripts::run_per_ws::{{closure}}::h51c5816cb3542076\n 12: 0x5a81d02354ac - project_model::build_dependencies::WorkspaceBuildScripts::run_command::{{closure}}::h0b4597eea45441df\n 13: 0x5a81d07a9e4a - stdx::process::streaming_output::{{closure}}::ha7dadb6434531061\n" [ERROR][2025-10-08 12:35:13] .../vim/lsp/rpc.lua:770 "rpc" "/home/ddystopia/.cargo/bin/rust-analyzer" "stderr" " 14: 0x5a81d07a982e - stdx::process::streaming_output::hb575197f201496b4\n 15: 0x5a81d07aa1ae - stdx::process::spawn_with_streaming_output::he5cabc0c42b0c6a8\n 16: 0x5a81d02330a9 - project_model::workspace::ProjectWorkspace::run_build_scripts::h518c158974640037\n 17: 0x5a81d051c560 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h9f7f4802e213cb27\n 18: " [ERROR][2025-10-08 12:35:13] .../vim/lsp/rpc.lua:770 "rpc" "/home/ddystopia/.cargo/bin/rust-analyzer" "stderr" " 0x5a81d07a26af - std::sys::backtrace::__rust_begin_short_backtrace::h993f45a2a2c2ddf5\n 19: 0x5a81d07a9296 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h2c70ea7295837e60\n 20: 0x5a81d078addf - std::sys::thread::unix::Thread::new::thread_start::h8abc8cd43373286d\n" [ERROR][2025-10-08 12:35:13] .../vim/lsp/rpc.lua:770 "rpc" "/home/ddystopia/.cargo/bin/rust-analyzer" "stderr" " 21: 0x781f314969cb - \n" [ERROR][2025-10-08 12:35:13] .../vim/lsp/rpc.lua:770 "rpc" "/home/ddystopia/.cargo/bin/rust-analyzer" "stderr" " 22: 0x781f3151aa0c - \n 23: 0x0 - \n"

[ShoyuVanilla]

Did you build rust-analyzer from source or install via our release artifact or other package manager like mason.nvim?

[Ddystopia]

I built rust-analyzer from source both times. I do it just to add target-cpu=native, nothing more

[ShoyuVanilla]

Thanks. I see which line panics based on that. Though I don't know what causes it yet 😅 (We have some internal assertions that triggers panic when rust-analyzer is built from source and not when it is built with our release command) I'll try reproducing the panic.

[ShoyuVanilla]

I guess setting "rust-analyzer.cargo.target": "thumbv7em-none-eabihf" (https://rust-analyzer.github.io/book/configuration.html#cargo.target) would fix the issue for your case, though I think we should improve our target handling to honor .cargo/config.toml better

[Ddystopia]

Thanks for quick response, thank you for your work!

By the way, does rust-analyzer already have per-project configuration files? I am trying my best to not include some scripts into my editor to change rust-analyzer settings per project...

[ShoyuVanilla]

No it doesn't have it yet 😢 I really want that feature too and actually there was an attempt to introduce .rust-analyzer.toml in #18915 but it's blocked by VFS rewrite. vs-code and helix supports per-workspace setting quite well but nvim is not, so I have my own lua script to import per-project rust-analyzer setting 😅

[ShoyuVanilla]

BTW I believe fixing this is quite straightforward and I'll open a PR some hours later

[ShoyuVanilla]

Oops, the cause is more complex than I expected. I should track it down more but I suspect a cargo bug 🤔

[Leandros]

I'm running into the same issue with a project configuration similar to this:

workspace/
├── .vscode/
│   └── settings.json
├── cross/
│   ├── .cargo/
│   │   └── config.toml
│   ├── crate1/
│   │   ├── src/
│   │   │   └── lib.rs
│   │   └── Cargo.toml
│   ├── crate2/
│   │   ├── src/
│   │   │   └── main.rs
│   │   └── Cargo.toml
│   └── Cargo.toml
├── crate3/
│   ├── src/
│   │   └── lib.rs
│   └── Cargo.toml
└── Cargo.toml

The cross workspace is inside a parent workspace. The cross workspace is configured (via .cargo/config.toml to build for a foreign non_std target, e.g., thumbv7m-none-eabi), while the parent workspace is configured to build for the host device by default and may use std.

In .vscode/settings.json, the two workspaces are linked together:

{
  // ...
  rust-analyzer.linkedProjects": ["/path/to/outer/Cargo.toml", "/path/to/cross/Cargo.toml"]
}

Stacktrace

RA is panicking with the following error:

thread 'Worker13' panicked at crates/project-model/src/build_dependencies.rs:299:21:
internal error: entered unreachable code: Received compiler message for unknown package: path+file:///local/home/<redacted>/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/compiler-builtins/compiler-builtins#compiler_builtins@0.1.160
 registry+https://github.com/rust-lang/crates.io-index#embassy-sync@0.7.2, registry+https://github.com/rust-lang/crates.io-index#as-slice@0.2.1, registry+https://github.com/rust-lang/crates.io-index#bitflags@1.3.2, registry+https://github.com/rust-lang/crates.io-index#stable_deref_trait@1.2.1, registry+https://github.com/rust-lang/crates.io-index#nb@0.1.3, registry+https://github.com/rust-lang/crates.io-index#semver-parser@0.7.0, registry+https://github.com/rust-lang/crates.io-index#quote@1.0.41, registry+https://github.com/rust-lang/crates.io-index#embedded-hal-async@1.0.0, registry+https://github.com/rust-lang/crates.io-index#embassy-usb-driver@0.2.0, registry+https://github.com/rust-lang/crates.io-index#bitfield@0.13.2, registry+https://github.com/rust-lang/crates.io-index#bare-metal@0.2.5, registry+https://github.com/rust-lang/crates.io-index#proc-macro2@1.0.101, registry+https://github.com/rust-lang/crates.io-index#stm32-fmc@0.3.2, registry+https://github.com/rust-lang/crates.io-index#embassy-stm32@0.4.0, registry+https://github.com/rust-lang/crates.io-index#futures-core@0.3.31, registry+https://github.com/rust-lang/crates.io-index#futures-task@0.3.31, registry+https://github.com/rust-lang/crates.io-index#static_assertions@1.1.0, registry+https://github.com/rust-lang/crates.io-index#syn@2.0.107, registry+https://github.com/rust-lang/crates.io-index#embassy-hal-internal@0.3.0, registry+https://github.com/rust-lang/crates.io-index#embedded-hal-nb@1.0.0, registry+https://github.com/rust-lang/crates.io-index#bit_field@0.10.3, registry+https://github.com/rust-lang/crates.io-index#bitflags@2.9.4, registry+https://github.com/rust-lang/crates.io-index#proc-macro-error2@2.0.1, registry+https://github.com/rust-lang/crates.io-index#embedded-can@0.4.1, registry+https://github.com/rust-lang/crates.io-index#rand_core@0.6.4, registry+https://github.com/rust-lang/crates.io-index#embassy-usb-synopsys-otg@0.3.1, registry+https://github.com/rust-lang/crates.io-index#embassy-time-driver@0.2.1, registry+https://github.com/rust-lang/crates.io-index#proc-macro-error-attr2@2.0.0, registry+https://github.com/rust-lang/crates.io-index#block-device-driver@0.2.0, registry+https://github.com/rust-lang/crates.io-index#embassy-net-driver@0.2.0, registry+https://github.com/rust-lang/crates.io-index#nb@1.1.0, registry+https://github.com/rust-lang/crates.io-index#aligned@0.4.2, registry+https://github.com/rust-lang/crates.io-index#critical-section@1.2.0, registry+https://github.com/rust-lang/crates.io-index#thiserror@2.0.17, registry+https://github.com/rust-lang/crates.io-index#embedded-hal@1.0.0, registry+https://github.com/rust-lang/crates.io-index#byteorder@1.5.0, registry+https://github.com/rust-lang/crates.io-index#embedded-io@0.6.1, registry+https://github.com/rust-lang/crates.io-index#cortex-m@0.7.7, registry+https://github.com/rust-lang/crates.io-index#embedded-storage-async@0.4.1, registry+https://github.com/rust-lang/crates.io-index#embedded-hal@0.2.7, registry+https://github.com/rust-lang/crates.io-index#defmt@1.0.1, registry+https://github.com/rust-lang/crates.io-index#embassy-futures@0.1.2, registry+https://github.com/rust-lang/crates.io-index#futures-sink@0.3.31, registry+https://github.com/rust-lang/crates.io-index#num-traits@0.2.19, registry+https://github.com/rust-lang/crates.io-index#document-features@0.2.11, registry+https://github.com/rust-lang/crates.io-index#sdio-host@0.9.0, registry+https://github.com/rust-lang/crates.io-index#hash32@0.3.1, path+file:///local/home/<redacted>/github/reflow1/cross/firmware#0.0.0, registry+https://github.com/rust-lang/crates.io-index#embassy-embedded-hal@0.5.0, registry+https://github.com/rust-lang/crates.io-index#embassy-time@0.5.0, registry+https://github.com/rust-lang/crates.io-index#panic-probe@1.0.0, path+file:///local/home/<redacted>/github/reflow1/cross/self-tests#0.0.0, registry+https://github.com/rust-lang/crates.io-index#embedded-storage@0.3.1, registry+https://github.com/rust-lang/crates.io-index#rustc_version@0.2.3, registry+https://github.com/rust-lang/crates.io-index#heapless@0.8.0, registry+https://github.com/rust-lang/crates.io-index#cfg-if@1.0.4, registry+https://github.com/rust-lang/crates.io-index#stm32-metapac@18.0.0, registry+https://github.com/rust-lang/crates.io-index#unicode-ident@1.0.19, registry+https://github.com/rust-lang/crates.io-index#vcell@0.1.3, registry+https://github.com/rust-lang/crates.io-index#rand_core@0.9.3, registry+https://github.com/rust-lang/crates.io-index#defmt-rtt@1.1.0, registry+https://github.com/rust-lang/crates.io-index#void@1.0.2, registry+https://github.com/rust-lang/crates.io-index#litrs@0.4.2, registry+https://github.com/rust-lang/crates.io-index#defmt@0.3.100, registry+https://github.com/rust-lang/crates.io-index#thiserror-impl@2.0.17, registry+https://github.com/rust-lang/crates.io-index#volatile-register@0.2.2, registry+https://github.com/rust-lang/crates.io-index#cortex-m-rt@0.7.5, registry+https://github.com/rust-lang/crates.io-index#defmt-parser@1.0.0, registry+https://github.com/rust-lang/crates.io-index#autocfg@1.5.0, registry+https://github.com/rust-lang/crates.io-index#embedded-io-async@0.6.1, registry+https://github.com/rust-lang/crates.io-index#cortex-m-rt-macros@0.7.5, registry+https://github.com/rust-lang/crates.io-index#defmt-macros@1.0.1, registry+https://github.com/rust-lang/crates.io-index#futures-util@0.3.31, path+file:///local/home/<redacted>/github/reflow1/cross/boardconfig#0.0.0, registry+https://github.com/rust-lang/crates.io-index#pin-project-lite@0.2.16, registry+https://github.com/rust-lang/crates.io-index#pin-utils@0.1.0, registry+https://github.com/rust-lang/crates.io-index#semver@0.9.0

stack backtrace:

   0: __rustc::rust_begin_unwind

   1: core::panicking::panic_fmt
   2: project_model::build_dependencies::WorkspaceBuildScripts::run_per_ws::{{closure}}
   3: project_model::build_dependencies::WorkspaceBuildScripts::run_command::{{closure}}
   4: stdx::process::streaming_output::{{closure}}
   5: stdx::process::imp::read2
   6: stdx::process::streaming_output
   7: stdx::process::spawn_with_streaming_output
   8: project_model::build_dependencies::
WorkspaceBuildScripts::run_for_workspace
   9: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
  10: <alloc::vec::Vec<T> as alloc::vec::spec_from_iter::SpecFromIter<T,I>>::from_iter
  11: project_model::workspace::ProjectWorkspace::run_all_build_scripts
  12: core::ops::function::FnOnce::call_once{{vtable.shim}}

note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

Versions:

rustc 1.90.0 (1159e78c4 2025-09-14)
binary: rustc
commit-hash: 1159e78c4747b02ef996e55082b704c09b970588
commit-date: 2025-09-14
host: x86_64-unknown-linux-gnu
release: 1.90.0
LLVM version: 20.1.8

rust-analyzer 0.0.0 (6b2e677795 2025-08-25)

[ShoyuVanilla]

Thanks! I'll look into this more this week

[Leandros]

Let me know if you need anything.