"Error: Can not find Rust compiler"

[kangaroo42]

I am trying to run the "word-count" example and am getting a "Can not find Rust compiler" error, which I believe is being thrown from the get_rust_version method in setuptools_rust/utils.py. Running rustc -V gives me "rustc 1.36.0-nightly (d595b1135 2019-05-10)".

🌍 Environment

• Your operating system and version: Ubuntu 18.04.1
• Your python version: 3.6.7 [GCC 8.2.0] on Linux
• How did you install python (e.g. apt or pyenv)? Did you use a virtualenv?: apt. No.
• Your rust version (rustc --version): "rustc 1.36.0-nightly"
• Are you using the latest pyo3 version? Have you tried using latest master (replace version = "0.x.y" with git = "https://github.com/PyO3/pyo3")? Yes. Yes.

💥 Reproducing

CLI:
[/pyo3/examples/word-count/] sudo python3 setup.py install

Trace:

running install
running bdist_egg
running egg_info
writing word_count.egg-info/PKG-INFO
writing dependency_links to word_count.egg-info/dependency_links.txt
writing top-level names to word_count.egg-info/top_level.txt
reading manifest file 'word_count.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
writing manifest file 'word_count.egg-info/SOURCES.txt'
installing library code to build/bdist.linux-x86_64/egg
running install_lib
running build_py
creating build
creating build/lib.linux-x86_64-3.6
creating build/lib.linux-x86_64-3.6/word_count
copying word_count/init.py -> build/lib.linux-x86_64-3.6/word_count
running build_ext
running build_rust
error: Can not find Rust compiler

[kngwyu]

Could you please open an issue in setuptools-rust repository?

[althonos]

I believe the sudo is messing up with things in here. What does sudo rustc --version give you ?

[kangaroo42]

I believe the sudo is messing up with things in here. What does sudo rustc --version give you ?

This was the issue.