can't find crate for vulkano_shaders

[nulvinge]

• Version of vulkano: 0.34.0, and latest master
• OS: ubuntu linux
• GPU (the selected PhysicalDevice): Intel UHD
• GPU Driver: Mesa
• Rust version: 1.75 and latest 1.80

Issue

I'm trying to run one of the examples. I have the repo checked out and run:
SHADERC_LIB_DIR=/home/nik/prj/shaderc/install/lib cargo run -v --bin triangle

Which results in this:

     Running `rustc --crate-name triangle --edition=2021 examples/triangle/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --diagnostic-width=105 --crate-type bin --emit=dep-info,link -C opt-level=3 -C embed-bitcode=no -C metadata=5a98d40c8cfda99c -C extra-filename=-5a98d40c8cfda99c --out-dir /home/nik/prj/vulkano/target/release/deps -L dependency=/home/nik/prj/vulkano/target/release/deps --extern vulkano=/home/nik/prj/vulkano/target/release/deps/libvulkano-6ff585a2bb4978f9.rlib --extern vulkano_shaders=/home/nik/prj/vulkano/target/release/deps/libvulkano_shaders-db6fd8155ed47d7b.so --extern winit=/home/nik/prj/vulkano/target/release/deps/libwinit-83039023fbbc3866.rlib`

error[E0463]: can't find crate for `vulkano_shaders`
   --> examples/triangle/main.rs:306:9
    |
306 |         vulkano_shaders::shader! {
    |         ^^^^^^^^^^^^^^^ can't find crate

I've tried many things, but nothing seems to work.
Does anyone know what is going wrong?

[marc0246]

I suggest making a fresh crate and running it like this:

cargo new shaderc-test && cd shaderc-test && cargo add shaderc && cargo build

Because you aren't going to go far with that diagnostic that Rust outputs when a linker error happens when building a proc macro dependency.

[nulvinge]

Thanks for being so quick to answer, sorry for being so slow.

That succeeded:

cargo new shaderc-test && cd shaderc-test && cargo add shaderc && cargo build
     Created binary (application) `shaderc-test` package
    Updating crates.io index
      Adding shaderc v0.8.3 to dependencies.
             Features:
             - build-from-source
             - prefer-static-linking
    Updating crates.io index
   Compiling shlex v1.3.0
   Compiling xmlparser v0.13.6
   Compiling libc v0.2.158
   Compiling cc v1.1.14
   Compiling roxmltree v0.14.1
   Compiling cmake v0.1.51
   Compiling shaderc-sys v0.8.3
   Compiling shaderc v0.8.3
   Compiling shaderc-test v0.1.0 (/home/nik/prj/shaderc-test)
    Finished dev [unoptimized + debuginfo] target(s) in 2.36s

I'm quite new at rust, so I'm unsure of what exactly is going wrong.
But I guess looking into shaderc is a good start?

[marc0246]

I was expecting that to fail, actually, and show you the errors (which Rust doesn't display when compiling the proc macro). I don't know what to do now.