GotoDef failed to complete successfully

[topecongiro]

When I use Go to Definition (f12) few times, rls fails with the following error message:

[Error - 23:53:49] Request textDocument/definition failed.
  Message: GotoDef failed to complete successfully
  Code: -32601 

Environment

• Visual Studio Code: 1.14.2
• rls: 0.1.0-nightly (ee92edb 2017-07-22)
• rls-vscode: 0.1.0
• OS: Arch Linux (4.11.9-1)

[topecongiro]

After creating this issue I found a very similar one in #74.
However, I am using the latest rls which should include the fix (rust-lang/rls@220116c), but it is still giving the same error messages.

[nrc]

What project were you looking at? When you tried to goto def, which symbol were you on?

[mominul]

I always see this kind of error to occur when I ctrl+click on any std functions.

[doxxx]

I get this error when I hold down Control and mouse over comments. Also when hovering over the derive or ... in #[derive(...)] lines. And keywords like impl or fn.

[doxxx]

Updating to the latest rust nightly toolchain (rustc 1.20.0-nightly (598eddf4f 2017-07-24)) resolved these errors for me.

[doxxx]

Although I still get a slightly different error when hovering of std types like std::fs::File at actual usage sites:

[Error - 6:13:27 PM] Request textDocument/definition failed.
  Message: GotoDef failed to complete successfully
  Code: -32603 

[topecongiro]

@nrc I was looking at rustfmt, rust, and my personal project. Symbols were local variables, macros, functions and structs, both internal and external.

However, when I start vscode from the shell, the issue seems disappear.

[nrc]

This should be fixed with latest RLS

[doxxx]

Verified using rustc/rls nightly ba1d065ff 2017-08-06.