cargo +nightly build                                       (base) 
   Compiling wgpu-example-runner v0.1.0 (/home/dvc/implicit/marching_rays/runner)
error: failed to run custom build command for `wgpu-example-runner v0.1.0 (/home/dvc/implicit/marching_rays/runner)`

Caused by:
  process didn't exit successfully: `/home/dvc/implicit/marching_rays/target/debug/build/wgpu-example-runner-fbbe94bc606d1aa7/build-script-build` (exit code: 1)
  --- stderr
     Compiling wgpu-example-shader v0.1.0 (/home/dvc/implicit/marching_rays/shader)
  error[E0463]: can't find crate for `unroll`
    --> shader/src/lib.rs:45:3
     |
  45 | #[unroll::unroll_for_loops]
     |   ^^^^^^ can't find crate
     |
     = note: extern location for unroll is of an unknown type: /home/dvc/implicit/marching_rays/target/release/deps/libunroll-75b6e6a2c714c829.so
     = help: file name should be lib*.rlib or *..spv

  error: aborting due to previous error

  For more information about this error, try `rustc --explain E0463`.
  error: could not compile `wgpu-example-shader`

  To learn more, run the command again with --verbose.
  Error: BuildFailed