[INFO] updating cached repository https://github.com/Jasperav/WebsocketRust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] cfb5c30a54b81f47833c9416b2e2eff1143d2822
[INFO] checking Jasperav/WebsocketRust against master#3dbade652ed8ebac70f903e01f51cd92c4e4302c for pr-69880
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJasperav%2FWebsocketRust" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jasperav/WebsocketRust on toolchain 3dbade652ed8ebac70f903e01f51cd92c4e4302c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Jasperav/WebsocketRust
[INFO] finished tweaking git repo https://github.com/Jasperav/WebsocketRust
[INFO] tweaked toml for git repo https://github.com/Jasperav/WebsocketRust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Jasperav/WebsocketRust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4ba30039124e0a6e345ff35c30ef26088c4f47f580f236b99f3e3985345b8d0b
[INFO] running `"docker" "start" "-a" "4ba30039124e0a6e345ff35c30ef26088c4f47f580f236b99f3e3985345b8d0b"`
[INFO] [stderr]     Checking ws v0.9.1
[INFO] [stderr]     Checking websocketshutdown v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `listen`
[INFO] [stderr]  --> src/main.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ws::{listen, connect, Sender, Handler, Message, Handshake};
[INFO] [stderr]   |          ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/main.rs:40:15
[INFO] [stderr]    |
[INFO] [stderr] 40 |         move |msg| {
[INFO] [stderr]    |               ^^^ help: consider prefixing with an underscore: `_msg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/main.rs:16:30
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn on_message(&mut self, msg: Message) -> Result<(), ws::Error> {
[INFO] [stderr]    |                              ^^^ help: consider prefixing with an underscore: `_msg`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             c.send(""); // Send something back
[INFO] [stderr]    |             ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `listen`
[INFO] [stderr]  --> src/main.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ws::{listen, connect, Sender, Handler, Message, Handshake};
[INFO] [stderr]   |          ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/main.rs:40:15
[INFO] [stderr]    |
[INFO] [stderr] 40 |         move |msg| {
[INFO] [stderr]    |               ^^^ help: consider prefixing with an underscore: `_msg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/main.rs:16:30
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn on_message(&mut self, msg: Message) -> Result<(), ws::Error> {
[INFO] [stderr]    |                              ^^^ help: consider prefixing with an underscore: `_msg`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             c.send(""); // Send something back
[INFO] [stderr]    |             ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.39s
[INFO] running `"docker" "inspect" "4ba30039124e0a6e345ff35c30ef26088c4f47f580f236b99f3e3985345b8d0b"`
[INFO] running `"docker" "rm" "-f" "4ba30039124e0a6e345ff35c30ef26088c4f47f580f236b99f3e3985345b8d0b"`
[INFO] [stdout] 4ba30039124e0a6e345ff35c30ef26088c4f47f580f236b99f3e3985345b8d0b