About "Cargo didn't build a cdylib..."

[km19809]

After the build command, maturin fails with a message: Cargo didn't build a cdylib. Did you miss crate-type = ["cdylib"] in the lib section of your Cargo.toml?
However, the crate was compiled successfully.
Also, there is crate-type = ["cdylib"] in the lib section. here.

What happened to me?
How can I solve this problem?

The last 4 lines of the message:

   Compiling unindent v0.1.10
    Finished release [optimized] target(s) in 1m 12s
💥 maturin failed
  Caused by: Cargo didn't build a cdylib. Did you miss crate-type = ["cdylib"] in the lib section of your Cargo.toml?

Environments
Rust: 1.64.0
Rust-nightly: 1.66.0-nightly (8b705839c 2022-09-26)
Host: x86_64-unknown-linux-gnu

Maturin: 0.13.4

How to reproduce

1. Clone a repository.
   git clone https://github.com/km19809/pyxel
2. Build with maturin.
   RUSTUP_TOOLCHAIN=nightly maturin build -o dist --release --target wasm32-unknown-emscripten -- -Clink-arg=-sUSE_SDL=2

[messense]

Thanks for the report, I think it's a regression in maturin 0.13.4.

Should be fixed by #1142