esp-backtrace (0.12.1) - error[E0583]: file not found for module arc

[Token-Thinker]

Discussed in #1783

^{Originally posted by Token-Thinker July 11, 2024}
I strongly believe it is user error but I can't find the answer. Some assistance would be appreciated.

toolchain = esp

rustc 1.77.0-nightly (424037dcb 2024-03-18) (1.77.0.0)
binary: rustc
host: x86_64-unknown-linux-gnu
release: 1.77.0-nightly
LLVM version: 17.0.1

error[E0583]: file not found for module `arch`
  --> ~/.cargo/registry/src/index.crates.io-6f17d22bba15001f/esp-backtrace-0.12.1/src/lib.rs:50:1
   |
50 | pub mod arch;
   | ^^^^^^^^^^^^^
   |
   = help: to create the module `arch`, create file "~/.cargo/registry/src/index.crates.io-6f17d22bba15001f/esp-backtrace-0.12.1/src/arch.rs" or "/home/mguerrier/.cargo/registry/src/index.crates.io-6f17d22bba15001f/esp-backtrace-0.12.1/src/arch/mod.rs"
   = note: if there is a `mod arch` elsewhere in the crate already, import it with `use crate::...` instead

error[E0425]: cannot find function `backtrace` in module `crate::arch`
   --> ~/.cargo/registry/src/index.crates.io-6f17d22bba15001f/esp-backtrace-0.12.1/src/lib.rs:105:34
    |
105 |     let backtrace = crate::arch::backtrace();
    |                                  ^^^^^^^^^ not found in `crate::arch`

error[E0425]: cannot find value `RA_OFFSET` in module `crate::arch`
   --> ~/.cargo/registry/src/index.crates.io-6f17d22bba15001f/esp-backtrace-0.12.1/src/lib.rs:116:52
    |
116 |             println!("0x{:x}", addr - crate::arch::RA_OFFSET);
    |                                                    ^^^^^^^^^ not found in `crate::arch`

Some errors have detailed explanations: E0425, E0583.
For more information about an error, try `rustc --explain E0425`.
error: could not compile `esp-backtrace` (lib) due to 3 previous errors

``` </div>

[MabezDev]

I have replied in the original discussion.