Rust Enhanced chokes on "possible candidate is found in another module"

error: src\main.rs:205: cannot find type `PluginInstance` in this scope
error: src\main.rs:205: not found in this scope
help: src\main.rs:139: possible candidate is found in another module, you can import it into scope
Rust Enhanced Internal Error: Traceback (most recent call last):
  File "rust.rust_proc in C:\Users\me\AppData\Roaming\Sublime Text 3\Installed Packages\Rust Enhanced.sublime-package", line 300, in _read_stdout
  File "rust.opanel in C:\Users\me\AppData\Roaming\Sublime Text 3\Installed Packages\Rust Enhanced.sublime-package", line 109, in on_json
  File "rust.messages in C:\Users\me\AppData\Roaming\Sublime Text 3\Installed Packages\Rust Enhanced.sublime-package", line 587, in add_rust_messages
  File "./python3.3/re.py", line 191, in split
TypeError: expected string or buffer

On the cmd line, it looks like this:

{
  "message": {
    "children": [
      {
        "children": [],
        "code": null,
        "level": "help",
        "message": "possible candidate is found in another module, you can import it into scope",
        "rendered": null,
        "spans": [
          {
            "byte_end": 4399,
            "byte_start": 4399,
            "column_end": 1,
            "column_start": 1,
            "expansion": null,
            "file_name": "main.rs",
            "is_primary": true,
            "label": null,
            "line_end": 139,
            "line_start": 139,
            "suggested_replacement": "use vst2::host::PluginInstance;\n",
            "text": [
              {
                "highlight_end": 1,
                "highlight_start": 1,
                "text": "use vst2::plugin::{Info, Plugin};"
              }
            ]
          }
        ]
      }
    ],
    "code": {
      "code": "E0412",
      "explanation": "\nThe type name used is not in scope.\n\nErroneous code examples:\n\n```compile_fail,E0412\nimpl Something {} // error: type name `Something` is not in scope\n\n// or:\n\ntrait Foo {\n    fn bar(N); // error: type name `N` is not in scope\n}\n\n// or:\n\nfnfoo(x: T) {} // type name `T` is not in scope\n```\n\nTo fix this error, pleaseverify you didn't misspell the type name, you did\ndeclare it or imported it into the scope. Examples:\n\n```\nstruct Something;\n\nimpl Something {} // ok!\n\n// or:\n\ntrait Foo {\n    type N;\n\n    fn bar(_: Self::N); // ok!\n}\n\n// or:\n\nfn foo<T>(x: T) {} // ok!\n```\n\nAnother case that causes this error is when a type is imported into a parent\nmodule. To fix this, you can follow the suggestion and use File directly or\n`use super::File;` which will import the types from the parent namespace. An\nexample that causes this error is below:\n\n```compile_fail,E0412\nuse std::fs::File;\n\nmod foo {\n    fn some_function(f: File) {}\n}\n```\n\n```\nuse std::fs::File;\n\nmod foo {\n    // either\n    use super::File;\n    // or\n    // use std::fs::File;\n    fn foo(f: File) {}\n}\n# fn main() {} // don't insert it for us; that'll break imports\n```\n"
    },
    "level": "error",
    "message": "cannot find type `PluginInstance` in this scope",
    "rendered": null,
    "spans": [
      {
        "byte_end": 9662,
        "byte_start": 9648,
        "column_end": 55,
        "column_start": 41,
        "expansion": null,
        "file_name": "main.rs",
        "is_primary": true,
        "label": "not found in this scope",
        "line_end": 261,
        "line_start": 261,
        "suggested_replacement": null,
        "text": [
          {
            "highlight_end": 55,
            "highlight_start": 41,
            "text": "\tpub fn process(&mut self, plugin: &mut PluginInstance) {"
          }
        ]
      }
    ]
  },
  "package_id": "foo 0.1.0 (path+file:///D:/projects/foo)",
  "reason": "compiler-message",
  "target": {
    "crate_types": [
      "bin"
    ],
    "kind": [
      "bin"
    ],
    "name": "foo",
    "src_path": "D:\\projects\\foo\\src\\main.rs"
  }
}

[ehuss]

I’m working on a fix. There has been some recent refactoring for how suggestions are handled in rustc, which has changed the way they are stored in the JSON output.

[jasonwilliams]

@Boscop are you able to try out https://github.com/rust-lang/rust-enhanced/pull/228 and let us know if it works for you?