Traits from transitive dependencies incorrectly show up in completion

[Riateche]

Environment

• Intellij-Rust plugin version: v0.2.98.2618-191-nightly
• Rust toolchain version: stable
• IDE name and version: CLion 2019.1.2
• Operating system: Linux

Problem description

The IDE suggests traits that are not actually available in the current context. It seems that it happens when these traits are available in dependencies.

Steps to reproduce

fn main() {
    std::iter::once(()).colle
}

When there are no dependencies, it correctly suggests collect and nothing else. But if I add mdbook = "0.2.3" to Cargo.toml, it starts suggesting collect_vec and collect_tuple from itertools because mdbook depends on itertools. If I accept the suggestion, the code will not compile because I can't import itertools (it's not a direct dependency of the current crate).

[Undin]

Fixed by #9945