'esp32-s3' is not a recognized processor for this target

[adrien3d]

Not sure about where to post for my issue, as it seems related to rustc-std-workspace-core.
I started a project from the cargo generate with std, and, as I already have a functional esp32c6 project, I put the code and config to another one, targeting esp32s3.
Source of the new project is here
But, when running cargo build, I have the following errors:

Compiling rustc-std-workspace-core v1.99.0 (/home/achapelet/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/rustc-std-workspace-core)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
error: data-layout for target xtensa-esp32s3-espidf, e-m:e-p:32:32-v1:8:8-i64:64-i128:128-n32, differs from LLVM target's xtensa-none-elf default layout, e-m:e-p:32:32-i8:8:32-i16:16:32-i64:64-n32

'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
error: could not compile rustc-std-workspace-core (lib) due to 1 previous error
warning: build failed, waiting for other jobs to finish...
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
error: could not compile core (lib) due to 1 previous error
error: could not compile libc (lib) due to 1 previous error
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
'esp32-s3' is not a recognized processor for this target (ignoring processor)
error: could not compile compiler_builtins (lib) due to 1 previous error

[SergioGasquez]

Looks like you are not using the esp toolchain to build the project. You need to install the Xtensa Rust with espup, see https://docs.esp-rs.org/book/installation/riscv-and-xtensa.html. And you can override the cargo command with cargo +esp build....

As for the CI, you can add the +esp on the cargo command or add the override: true in the input of the toolchain.

Please, use the Matrix channel for similar questions.