[INFO] updating cached repository https://github.com/CryptoFacilities/WebSocket-v1-Rust
[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] 8f112ff24bc633dd8a8bdc0b454c579ae2d21901
[INFO] checking CryptoFacilities/WebSocket-v1-Rust against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FCryptoFacilities%2FWebSocket-v1-Rust" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CryptoFacilities/WebSocket-v1-Rust 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/CryptoFacilities/WebSocket-v1-Rust
[INFO] finished tweaking git repo https://github.com/CryptoFacilities/WebSocket-v1-Rust
[INFO] tweaked toml for git repo https://github.com/CryptoFacilities/WebSocket-v1-Rust written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/CryptoFacilities/WebSocket-v1-Rust 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-2/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] 1a6fa493c0fb667d81b6ea7c76ec203a9fe1c7a69d8cf269cf5467e2c59cd78d
[INFO] running `"docker" "start" "-a" "1a6fa493c0fb667d81b6ea7c76ec203a9fe1c7a69d8cf269cf5467e2c59cd78d"`
[INFO] [stderr]    Compiling openssl-sys v0.9.48
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]     Checking tokio-tls v0.2.1
[INFO] [stderr]     Checking websocket v0.23.0
[INFO] [stderr]     Checking serde v1.0.98
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking cf-ws-v1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Read`, `self`, `sync::mpsc`, `thread`
[INFO] [stderr]   --> examples/tester.rs:26:10
[INFO] [stderr]    |
[INFO] [stderr] 26 |     io::{self, Read},
[INFO] [stderr]    |          ^^^^  ^^^^
[INFO] [stderr] 27 |     sync::mpsc,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 28 |     thread
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `log::info`
[INFO] [stderr]   --> examples/tester.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 | use log::info;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.51s
[INFO] running `"docker" "inspect" "1a6fa493c0fb667d81b6ea7c76ec203a9fe1c7a69d8cf269cf5467e2c59cd78d"`
[INFO] running `"docker" "rm" "-f" "1a6fa493c0fb667d81b6ea7c76ec203a9fe1c7a69d8cf269cf5467e2c59cd78d"`
[INFO] [stdout] 1a6fa493c0fb667d81b6ea7c76ec203a9fe1c7a69d8cf269cf5467e2c59cd78d