[INFO] cloning repository zackgomez/rust-channel-server
[INFO] running `"git" "clone" "--bare" "git://github.com/zackgomez/rust-channel-server.git" "work/cache/sources/gh/zackgomez/rust-channel-server"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/zackgomez/rust-channel-server'...
[INFO] running `"git" "clone" "work/cache/sources/gh/zackgomez/rust-channel-server" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/zackgomez/rust-channel-server"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/zackgomez/rust-channel-server'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zackgomez/rust-channel-server" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/zackgomez/rust-channel-server"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/zackgomez/rust-channel-server'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e253d29910f9e2a296119fde9d8f01ee0ade70bc
[INFO] sha for GitHub repo zackgomez/rust-channel-server: e253d29910f9e2a296119fde9d8f01ee0ade70bc
[INFO] validating manifest of zackgomez/rust-channel-server on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of zackgomez/rust-channel-server on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing zackgomez/rust-channel-server
[INFO] finished frobbing zackgomez/rust-channel-server
[INFO] frobbed toml for zackgomez/rust-channel-server written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/zackgomez/rust-channel-server/Cargo.toml
[INFO] started frobbing zackgomez/rust-channel-server
[INFO] finished frobbing zackgomez/rust-channel-server
[INFO] frobbed toml for zackgomez/rust-channel-server written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/zackgomez/rust-channel-server/Cargo.toml
[INFO] crate zackgomez/rust-channel-server already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking zackgomez/rust-channel-server against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-1/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/zackgomez/rust-channel-server:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a15b60fe315586bb6bfa6fd26f9dabe3f0f2a0dd83708ef5831224bc20db1b6e
[INFO] running `"docker" "start" "-a" "a15b60fe315586bb6bfa6fd26f9dabe3f0f2a0dd83708ef5831224bc20db1b6e"`
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking ascii v0.9.1
[INFO] [stderr]    Compiling redis v0.10.0
[INFO] [stderr]     Checking tokio-sync v0.1.4
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking ws v0.8.0
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking channel-server-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::cell::RefCell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::cell::RefCell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `shake`
[INFO] [stderr]    --> src/main.rs:126:27
[INFO] [stderr]     |
[INFO] [stderr] 126 |     fn on_open(&mut self, shake: ws::Handshake) -> ws::Result<()> {
[INFO] [stderr]     |                           ^^^^^ help: consider prefixing with an underscore: `_shake`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `shake`
[INFO] [stderr]    --> src/main.rs:126:27
[INFO] [stderr]     |
[INFO] [stderr] 126 |     fn on_open(&mut self, shake: ws::Handshake) -> ws::Result<()> {
[INFO] [stderr]     |                           ^^^^^ help: consider prefixing with an underscore: `_shake`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.20s
[INFO] running `"docker" "inspect" "a15b60fe315586bb6bfa6fd26f9dabe3f0f2a0dd83708ef5831224bc20db1b6e"`
[INFO] running `"docker" "rm" "-f" "a15b60fe315586bb6bfa6fd26f9dabe3f0f2a0dd83708ef5831224bc20db1b6e"`
[INFO] [stdout] a15b60fe315586bb6bfa6fd26f9dabe3f0f2a0dd83708ef5831224bc20db1b6e