racer does not complete external crates

[PeterDing]

I installed racer with nightly rust. racer completes only std libs.

Following is my test:

My environment info:

macOS 10.13.6
rustc 1.31.0-nightly (424a749a0 2018-10-21)
racer 2.1.9

RUST_SRC_PATH="$(rustc --print sysroot)/lib/rustlib/src/rust/src"

In my project directory, following is test result.

• ls

Cargo.lock      Cargo.toml      src        target

• cat Cargo.toml

[package]
name = "ttt"
version = "0.1.0"
authors = ["PeterDing <dfhayst@gmail.com>"]
edition = "2018"

[dependencies]
hyper = "0.12.12"
tokio = "0.1.11"

• cat src/main.rs

use hyper;
fn main() {
    return ();
}

• RUST_BACKTRACE=1 RUST_LOG=trace racer complete std (complete stdlib)

DEBUG 2018-10-23T08:39:53.083789000Z: racer::util: Getting rust source path. Trying env var RUST_SRC_PATH.
DEBUG 2018-10-23T08:39:53.083879000Z: racer::nameres: do_file_search with search string "std"
DEBUG 2018-10-23T08:39:53.083889000Z: racer::util: Getting rust source path. Trying env var RUST_SRC_PATH.
DEBUG 2018-10-23T08:39:53.083905000Z: racer::nameres: do_file_search std_path: Some("/Users/peter/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src")
DEBUG 2018-10-23T08:39:53.083935000Z: racer::nameres: do_file_search v: ["/Users/peter/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src", "."]
MATCH std,1,0,/Users/peter/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/lib.rs,Module,std

• RUST_BACKTRACE=1 RUST_LOG=trace racer complete 1 9 src/main.rs (no complete external lib)

DEBUG 2018-10-23T08:36:10.555840000Z: racer::util: Getting rust source path. Trying env var RUST_SRC_PATH.
PREFIX 4,9,hyper
DEBUG 2018-10-23T08:36:10.556294000Z: racer::core: Path: contextstr is ||, searchstr is |hyper|
DEBUG 2018-10-23T08:36:10.556318000Z: racer::scopes: [find_stmt_start] now we are in scope BytePos(0) ~ BytePos(9)
DEBUG 2018-10-23T08:36:10.556329000Z: racer::core: Complete path with line: "use hyper"
DEBUG 2018-10-23T08:36:10.556354000Z: racer::core: path: P[hyper], prefix: None
DEBUG 2018-10-23T08:36:10.556366000Z: racer::nameres: resolve_path P[hyper] "src/main.rs" BytePos(9) StartsWith
DEBUG 2018-10-23T08:36:10.556379000Z: racer::nameres: search_local_scopes PathSegment { name: "hyper", generics: [], output: None } "src/main.rs" BytePos(9) StartsWith Crate | Mod | Space | Enum | Struct | Union | Trait | TypeDef | Type | PathParen | Const | Static | Func | Macro | PathChild | Path
DEBUG 2018-10-23T08:36:10.556409000Z: racer::nameres: searching scope Crate | Mod | Space | Enum | Struct | Union | Trait | TypeDef | Type | PathParen | Const | Static | Func | Macro | PathChild | Path start: BytePos(0) point: BytePos(9) 'hyper' "src/main.rs" StartsWith local: true, session: Session { .. }
DEBUG 2018-10-23T08:36:10.556433000Z: racer::nameres: [run_matchers_on_blob] src: fn main() {
    let url = "                ".parse::<hyper::Uri>().unwrap();
}, cxt: MatchCxt { filepath: "src/main.rs", search_str: "hyper", range: ByteRange(11..89), search_type: StartsWith, is_local: true }, namespace: Crate | Mod | Space | Enum | Struct | Union | Trait | TypeDef | Type | PathParen | Const | Static | Func | Macro | PathChild | Path
TRACE 2018-10-23T08:36:10.556471000Z: racer::typeinf: searching fn args for self: || false
TRACE 2018-10-23T08:36:10.556487000Z: racer::nameres: Searching 1 delayed imports for `hyper`
DEBUG 2018-10-23T08:36:10.556492000Z: racer::nameres: [run_matchers_on_blob] src: use hyper;, cxt: MatchCxt { filepath: "src/main.rs", search_str: "hyper", range: ByteRange(0..10), search_type: StartsWith, is_local: true }, namespace: Crate | Mod | Space | Enum | Struct | Union | Trait | TypeDef | Type | PathParen | Const | Static | Func | Macro | PathChild | Path
DEBUG 2018-10-23T08:36:10.556733000Z: syntax::parse::lexer: scanning whitespace: Some(TokenAndSpan { tok: Whitespace, sp: Span { lo: BytePos(3), hi: BytePos(4), ctxt: #0 } })
DEBUG 2018-10-23T08:36:10.556787000Z: syntax::source_map: byte pos BytePos(0) is on the line at byte pos BytePos(0)
DEBUG 2018-10-23T08:36:10.556791000Z: syntax::source_map: char pos CharPos(0) is on the line at char pos CharPos(0)
DEBUG 2018-10-23T08:36:10.556793000Z: syntax::source_map: byte is on line: 1
DEBUG 2018-10-23T08:36:10.556807000Z: syntax::parse::attr: parse_outer_attributes: self.token=Ident(use#0, false)
DEBUG 2018-10-23T08:36:10.556940000Z: racer::matchers: [match_use] found item: UseVisitor { path_list: [PathAlias { kind: Ident("hyper"), path: P[hyper] }], contains_glob: false }, searchstr: hyper
DEBUG 2018-10-23T08:36:10.556957000Z: racer::nameres: resolve_path P[hyper] "src/main.rs" BytePos(0) ExactMatch
DEBUG 2018-10-23T08:36:10.556965000Z: racer::nameres: search_local_scopes PathSegment { name: "hyper", generics: [], output: None } "src/main.rs" BytePos(0) ExactMatch Crate | Mod | Space | Enum | Struct | Union | Trait | TypeDef | Type | PathParen | Const | Static | Func | Macro | PathChild | Path
DEBUG 2018-10-23T08:36:10.556973000Z: racer::nameres: searching scope Crate | Mod | Space | Enum | Struct | Union | Trait | TypeDef | Type | PathParen | Const | Static | Func | Macro | PathChild | Path start: BytePos(0) point: BytePos(0) 'hyper' "src/main.rs" ExactMatch local: true, session: Session { .. }
DEBUG 2018-10-23T08:36:10.556982000Z: racer::nameres: [run_matchers_on_blob] src: fn main() {
    let url = "                ".parse::<hyper::Uri>().unwrap();
}, cxt: MatchCxt { filepath: "src/main.rs", search_str: "hyper", range: ByteRange(11..89), search_type: ExactMatch, is_local: true }, namespace: Crate | Mod | Space | Enum | Struct | Union | Trait | TypeDef | Type | PathParen | Const | Static | Func | Macro | PathChild | Path
TRACE 2018-10-23T08:36:10.556995000Z: racer::typeinf: searching fn args for self: || false
TRACE 2018-10-23T08:36:10.557000000Z: racer::nameres: Searching 1 delayed imports for `hyper`
DEBUG 2018-10-23T08:36:10.557002000Z: racer::nameres: [run_matchers_on_blob] src: use hyper;, cxt: MatchCxt { filepath: "src/main.rs", search_str: "hyper", range: ByteRange(0..10), search_type: ExactMatch, is_local: true }, namespace: Crate | Mod | Space | Enum | Struct | Union | Trait | TypeDef | Type | PathParen | Const | Static | Func | Macro | PathChild | Path
DEBUG 2018-10-23T08:36:10.557009000Z: racer::matchers: import use hyper; involved in a cycle; ignoring
TRACE 2018-10-23T08:36:10.557014000Z: racer::nameres: Closure definition match is looking for `hyper` in 90 characters
DEBUG 2018-10-23T08:36:10.557016000Z: racer::nameres: search_scope found matches ExactMatch []
DEBUG 2018-10-23T08:36:10.557019000Z: racer::nameres: search_crate_root |PathSegment { name: "hyper", generics: [], output: None }| "src/main.rs"
DEBUG 2018-10-23T08:36:10.557043000Z: racer::nameres: search_prelude file PathSegment { name: "hyper", generics: [], output: None } ExactMatch Crate | Mod | Space | Enum | Struct | Union | Trait | TypeDef | Type | PathParen | Const | Static | Func | Macro | PathChild | Path
DEBUG 2018-10-23T08:36:10.557047000Z: racer::util: Getting rust source path. Trying env var RUST_SRC_PATH.
DEBUG 2018-10-23T08:36:10.557169000Z: racer::nameres: searching scope Crate | Mod | Space | Enum | Struct | Union | Trait | TypeDef | Type | PathParen | Const | Static | Func | Macro | PathChild | Path start: BytePos(0) point: BytePos(0) 'hyper' "/Users/peter/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/prelude/v1.rs" ExactMatch local: true, session: Session { .. }
TRACE 2018-10-23T08:36:10.557197000Z: racer::nameres: Closure definition match is looking for `hyper` in 2576 characters
DEBUG 2018-10-23T08:36:10.557201000Z: racer::nameres: search_scope found matches ExactMatch []
TRACE 2018-10-23T08:36:10.557208000Z: racer::nameres: Closure definition match is looking for `hyper` in 90 characters
DEBUG 2018-10-23T08:36:10.557211000Z: racer::nameres: search_scope found matches StartsWith []
DEBUG 2018-10-23T08:36:10.557213000Z: racer::nameres: search_crate_root |PathSegment { name: "hyper", generics: [], output: None }| "src/main.rs"
DEBUG 2018-10-23T08:36:10.557230000Z: racer::nameres: search_prelude file PathSegment { name: "hyper", generics: [], output: None } StartsWith Crate | Mod | Space | Enum | Struct | Union | Trait | TypeDef | Type | PathParen | Const | Static | Func | Macro | PathChild | Path
DEBUG 2018-10-23T08:36:10.557245000Z: racer::nameres: searching scope Crate | Mod | Space | Enum | Struct | Union | Trait | TypeDef | Type | PathParen | Const | Static | Func | Macro | PathChild | Path start: BytePos(0) point: BytePos(0) 'hyper' "/Users/peter/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/prelude/v1.rs" StartsWith local: true, session: Session { .. }
TRACE 2018-10-23T08:36:10.557267000Z: racer::nameres: Closure definition match is looking for `hyper` in 2576 characters
DEBUG 2018-10-23T08:36:10.557269000Z: racer::nameres: search_scope found matches StartsWith []
DEBUG 2018-10-23T08:36:10.557275000Z: racer::nameres: do_file_search with search string "hyper"
DEBUG 2018-10-23T08:36:10.557277000Z: racer::nameres: do_file_search std_path: Some("/Users/peter/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src")
DEBUG 2018-10-23T08:36:10.557284000Z: racer::nameres: do_file_search v: ["/Users/peter/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src", "src"]
END

• RUST_BACKTRACE=1 RUST_LOG=trace racer complete hyper

DEBUG 2018-10-23T08:50:00.909610000Z: racer::util: Getting rust source path. Trying env var RUST_SRC_PATH.
DEBUG 2018-10-23T08:50:00.909706000Z: racer::nameres: do_file_search with search string "hyper"
DEBUG 2018-10-23T08:50:00.909716000Z: racer::util: Getting rust source path. Trying env var RUST_SRC_PATH.
DEBUG 2018-10-23T08:50:00.909731000Z: racer::nameres: do_file_search std_path: Some("/Users/peter/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src")
DEBUG 2018-10-23T08:50:00.909761000Z: racer::nameres: do_file_search v: ["/Users/peter/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src", "."]

I viewed #551 , finding nothing to solve the problem.

[kngwyu]

Looks same as #916

[qzio]

I'm having the same issue, same versions, but on linux (debian)
I've read #916 and tried adding extern crate hyper; but it didn't solve anything for me.

[kngwyu]

@qzio
I think it's fixed by e0da9bd.
Could you please try current master?
Thanks.

[qzio]

@kngwyu I've built racer from this repo, I still have the same issue, no completion or definition for hyper.

[kngwyu]

@qzio
Could you please paste the output of cargo --version?

[qzio]

@kngwyu

$ cargo --version
cargo 1.31.0-nightly (2d0863f65 2018-10-20)

[qzio]

@kngwyu some more output:

saito:src/private/foo(master✗)$ ~/src/other/racer/target/release/racer --version && cargo --version && rustc --version && echo -e "\n## file: Cargo.toml\n$(cat Cargo.toml)\n\n## file: src/main.rs\n\n$(cat src/main.rs)"
racer 2.1.9
cargo 1.31.0-nightly (2d0863f65 2018-10-20)
rustc 1.31.0-nightly (a66dc8a14 2018-10-22)

## file: Cargo.toml
[package]
name = "foo"
version = "0.1.0"
authors = ["user adminson <user@example.com>"]
edition = "2018"

[dependencies]

hyper = "0.12"

## file: src/main.rs

extern crate hyper;
use hyper;
fn main() {
    println!("Hello, world!");
}
saito:src/private/foo(master✗)$ ~/src/other/racer/target/release/racer complete 2 8 src/main.rs                                                                                                            
PREFIX 24,28,hype
END
saito:src/private/foo(master✗)$ ~/src/other/racer/target/release/racer complete 4 10 src/main.rs
PREFIX 47,53,printl
MATCH println!,157,13,/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/libstd/macros.rs,Macro,macro_rules! println {
END
saito:src/private/foo(master✗)$ 

[PeterDing]

Completion works at neovim using vim-racer and rust.vim after I add extern crate hyper; to main.ts

[kngwyu]

@PeterDing
Thanks!
Now I found racer fails to resolve external crates given a relative path.

@qzio
Now I think it's fixed by d538540.
Could you please try it out?
Sorry for taking your time again.

[qzio]

$ ~/src/other/racer/target/release/racer complete 2 8 src/main.rs                                                                                                                                        
PREFIX 24,28,hype
MATCH hyper,1,0,/home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/hyper-0.12.12/src/lib.rs,Module,/home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/hyper-0.12.12/src/lib.rs                                         
END

success! Thank you for taking the time to fix this <3

[qzio]

As far as I'm concerned, the commit d538540 closes this issue.

[kathampy]

Is racer complete <external crate> supposed to work in the terminal in the presence of cargo.lock, because it doesn't for me? I don't get auto-complete for trait methods implemented on a struct.