Doesn't work with custom rustc path

[valff]

cargo clippy doesn't work with the following .cargo/config:

[build]
rustc = ".cargo/rustc.sh"

Output:

error: failed to run `rustc` to learn about target-specific information

Caused by:
  process didn't exit successfully: `/home/val/.cargo/bin/clippy-driver /home/val/Projects/drone-os/drone-stm32/.cargo/rustc.sh - --crate-name ___ --print=file-names --crate-type bin --crate-type rlib --crate-type dylib --crate-type cdylib --crate-type staticlib --crate-type proc-macro` (exit code: 101)
--- stderr
error: multiple input filenames provided

.cargo/rustc.sh is just a wrapper:

#!/bin/bash
exec rustc --cfg procmacro2_semver_exempt $@

The wrapper is needed because of rust-lang/cargo#4423.

---

clippy v0.0.200
rustc 1.27.0-nightly (f0fdaba 2018-05-15)

[valff]

Looks like the issue starts here: https://github.com/rust-lang-nursery/rust-clippy/blob/master/src/driver.rs#L165

    if orig_args[1] == "rustc" {
        // we still want to be able to invoke it normally though
        orig_args.remove(1);
    }

[oli-obk]

yea sorry, we need that hack for cargo-clippy.

The hack is at https://github.com/rust-lang-nursery/rust-clippy/blob/master/src/main.rs#L101

What you can do is change your script to use $RUSTC_WRAPPER instead of rustc. That should work.

[uberjay]

Unrelated to your actual issue, but you probably want to quote the args in your wrapper script.

exec rustc --cfg procmacro2_semver_exempt "$@"

😬