[INFO] updating cached repository https://github.com/lynaghk/question-rust-websocket
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7871d9e6864180d12de1abd7d7b6f379b53859ce
[INFO] checking lynaghk/question-rust-websocket against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Flynaghk%2Fquestion-rust-websocket" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lynaghk/question-rust-websocket on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/lynaghk/question-rust-websocket
[INFO] finished tweaking git repo https://github.com/lynaghk/question-rust-websocket
[INFO] tweaked toml for git repo https://github.com/lynaghk/question-rust-websocket written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/lynaghk/question-rust-websocket already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4060656c1163d70f3547e1fb99e4f05b7ec1329c7f94f8b8cf7d33373d3a8b2a
[INFO] running `"docker" "start" "-a" "4060656c1163d70f3547e1fb99e4f05b7ec1329c7f94f8b8cf7d33373d3a8b2a"`
[INFO] [stderr]     Checking base64 v0.5.2
[INFO] [stderr]     Checking tokio-io v0.1.6
[INFO] [stderr]     Checking openssl-sys v0.9.31
[INFO] [stderr]     Checking openssl v0.9.24
[INFO] [stderr]     Checking tokio-reactor v0.1.1
[INFO] [stderr]     Checking tokio-fs v0.1.0
[INFO] [stderr]     Checking tokio-udp v0.1.0
[INFO] [stderr]     Checking tokio-tcp v0.1.0
[INFO] [stderr]     Checking tokio v0.1.6
[INFO] [stderr]     Checking native-tls v0.1.5
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking tokio-tls v0.1.4
[INFO] [stderr]     Checking websocket v0.20.2
[INFO] [stderr]     Checking websocket_sync v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]   --> src/bin/client.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     thread::sleep_ms(10000);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]   --> src/bin/client.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     thread::sleep_ms(10000);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.47s
[INFO] running `"docker" "inspect" "4060656c1163d70f3547e1fb99e4f05b7ec1329c7f94f8b8cf7d33373d3a8b2a"`
[INFO] running `"docker" "rm" "-f" "4060656c1163d70f3547e1fb99e4f05b7ec1329c7f94f8b8cf7d33373d3a8b2a"`
[INFO] [stdout] 4060656c1163d70f3547e1fb99e4f05b7ec1329c7f94f8b8cf7d33373d3a8b2a