cargo build --release hangs on Mac

[jasonivers]

I went to the gem directory and attempted to run

cargo build --release --verbose

It hung at this:

Updating registry https://github.com/rust-lang/crates.io-index``

So I ran

RUST_LOG=cargo::core::resolve,cargo::core::registry cargo build --release --verbose

and it hung after outputting

TRACE:cargo::core::registry: register_lock: faster_path v0.0.1 (file:///Users/jason/.rvm/gems/ruby-2.4.0@wedo/gems/faster_path-0.1.11)
TRACE:cargo::core::registry: 	-> libc v0.2.11
TRACE:cargo::core::registry: register_lock: libc v0.2.11
DEBUG:cargo::core::registry: load/missing  file:///Users/jason/.rvm/gems/ruby-2.4.0@wedo/gems/faster_path-0.1.11
TRACE:cargo::core::registry: locking summary of faster_path v0.0.1 (file:///Users/jason/.rvm/gems/ruby-2.4.0@wedo/gems/faster_path-0.1.11)
TRACE:cargo::core::registry: 	libc/^0.2.11/registry https://github.com/rust-lang/crates.io-index
TRACE:cargo::core::registry: 	first hit on libc v0.2.11
DEBUG:cargo::core::resolver: initial activation: faster_path v0.0.1 (file:///Users/jason/.rvm/gems/ruby-2.4.0@wedo/gems/faster_path-0.1.11)
TRACE:cargo::core::resolver: activating faster_path v0.0.1 (file:///Users/jason/.rvm/gems/ruby-2.4.0@wedo/gems/faster_path-0.1.11)
DEBUG:cargo::core::registry: load/missing  registry https://github.com/rust-lang/crates.io-index
TRACE:cargo::core::registry: locking summary of libc v0.2.11
TRACE:cargo::core::resolver: faster_path[0]>libc 1 candidates
TRACE:cargo::core::resolver: faster_path[0]>libc 0 prev activations
TRACE:cargo::core::resolver: faster_path[0]>libc trying 0.2.11
TRACE:cargo::core::resolver: activating libc v0.2.11
TRACE:cargo::core::resolver: resolved: graph: Graph {
  - libc v0.2.11
  - faster_path v0.0.1 (file:///Users/jason/.rvm/gems/ruby-2.4.0@wedo/gems/faster_path-0.1.11)
    - libc v0.2.11
}

features: {
  libc v0.2.11: {"default", "use_std"}
}
TRACE:cargo::core::registry: register_lock: libc v0.2.11
TRACE:cargo::core::registry: register_lock: faster_path v0.0.1 (file:///Users/jason/.rvm/gems/ruby-2.4.0@wedo/gems/faster_path-0.1.11)
TRACE:cargo::core::registry: 	-> libc v0.2.11
DEBUG:cargo::core::registry: load/locked   file:///Users/jason/.rvm/gems/ruby-2.4.0@wedo/gems/faster_path-0.1.11
TRACE:cargo::core::registry: locking summary of faster_path v0.0.1 (file:///Users/jason/.rvm/gems/ruby-2.4.0@wedo/gems/faster_path-0.1.11)
TRACE:cargo::core::registry: 	libc/^0.2.11/registry https://github.com/rust-lang/crates.io-index
TRACE:cargo::core::registry: 	first hit on libc v0.2.11
DEBUG:cargo::core::resolver: initial activation: faster_path v0.0.1 (file:///Users/jason/.rvm/gems/ruby-2.4.0@wedo/gems/faster_path-0.1.11)
TRACE:cargo::core::resolver: activating faster_path v0.0.1 (file:///Users/jason/.rvm/gems/ruby-2.4.0@wedo/gems/faster_path-0.1.11)
DEBUG:cargo::core::registry: load/match    registry https://github.com/rust-lang/crates.io-index
TRACE:cargo::core::registry: locking summary of libc v0.2.11
TRACE:cargo::core::resolver: faster_path[0]>libc 1 candidates
TRACE:cargo::core::resolver: faster_path[0]>libc 0 prev activations
TRACE:cargo::core::resolver: faster_path[0]>libc trying 0.2.11
TRACE:cargo::core::resolver: activating libc v0.2.11
TRACE:cargo::core::resolver: resolved: graph: Graph {
  - faster_path v0.0.1 (file:///Users/jason/.rvm/gems/ruby-2.4.0@wedo/gems/faster_path-0.1.11)
    - libc v0.2.11
  - libc v0.2.11
}

features: {
  libc v0.2.11: {"use_std", "default"}
}
TRACE:cargo::core::registry: getting packages; sources=2

I don't seem to be able to get this gem to build.

[danielpclark]

Can you provide the following information:

rustc --version --verbose
cargo --version --verbose

Also delete the Cargo.lock file and try again. http://doc.crates.io/guide.html#cargo.toml-vs-cargo.lock

I'm looking into what may be the issue. Could be related to:

rust-lang/cargo#2845 , rust-lang/cargo#2090 , rust-lang/cargo#2975 , rust-lang/cargo#2078

And check your global git config for SSH preference.

git config core.gitproxy

I appreciate the details!

[danielpclark]

Also any info you can give me on your Mac's architecture will be super helpful.

[heibor]

rustc 1.16.0
binary: rustc
commit-hash: unknown
commit-date: unknown
host: x86_64-apple-darwin
release: 1.16.0
LLVM version: 3.9

cargo-0.17.0-dev (f9e5481 2017-03-03)
release: 0.17.0
commit-hash: f9e54817e53c7b9845cc7c1ede4c11e4d3e42e36
commit-date: 2017-03-03

[danielpclark]

The Rakefile has been updated on this project to provide more details about the system. Please run rake sysinfo and put the information here.

According to @jasonivers' debugging info this is related to libc. Have you looked into libc verifying you have libc on your Mac?

[jasonivers]

So... this appears to have been caused by homebrew on my Mac NOT updating rust itself properly. After a whole lot of debugging stuff and looking errors up on Google, I found that the error came from rust version 1.15, while everything seemed to indicate I was on 1.16. Finally just uninstalled the whole thing, wiped all rust directories, etc, then reinstalled, and everything worked fine and completed in about 2 seconds, rather than hanging for hours. Can't believe how much of a pain that was... I'll make sure that all of my servers do a clean install of rust 1.16, as well.