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I have installed the Rust programming language (Debian). Now i can compile and run programs from terminal (with the cargo build and cargo run commands), but not from inside emacs. The cargo compiler stays on my system in /home/me/.cargo/bin/cargo and emacs is not looking there to find the interpreter. I get this error /bin/bash: cargo: command not found by running M-x &, cargo build. So how can i tell emacs the address of cargo binary, or is it better to send the binary to the address emacs looks in?

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    I think you forgot to add export PATH="$HOME/.cargo/bin:$PATH" to your bashrc ? You should also try cargo.el.
    – bertfred
    Aug 7, 2017 at 11:36
  • export PATH="$HOME/.cargo/bin:$PATH" is already in bashrc. I have installed the cargo.el package, same error. Emacs can't find the cargo binary.
    – user12021
    Aug 7, 2017 at 12:47

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I set up the exec-path variable so that emacs finds the cargo binary at ~/.cargo/bin:

(setenv "PATH" (concat (getenv "PATH") ":" (expand-file-name "~/.cargo/bin")))
(setq exec-path (append exec-path (list (expand-file-name "~/.cargo/bin"))))
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