[INFO] cloning repository https://github.com/yingkitw/meeting
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yingkitw/meeting" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyingkitw%2Fmeeting", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyingkitw%2Fmeeting'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c508bdaded8d3886af31d33757077c71d8ff273
[INFO] checking yingkitw/meeting/4c508bdaded8d3886af31d33757077c71d8ff273 against master#df1ae0f7dd168513de2d89beb2cb7a95d4fdc118 for pr-159343
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyingkitw%2Fmeeting" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/yingkitw/meeting
[INFO] finished tweaking git repo https://github.com/yingkitw/meeting
[INFO] tweaked toml for git repo https://github.com/yingkitw/meeting written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/yingkitw/meeting on toolchain df1ae0f7dd168513de2d89beb2cb7a95d4fdc118
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+df1ae0f7dd168513de2d89beb2cb7a95d4fdc118" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/yingkitw/meeting already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+df1ae0f7dd168513de2d89beb2cb7a95d4fdc118" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "7aa162e3304b8c79ba7bff30a9b9fd88cd42d221eea75f83c7f4fc2aab4ae3fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7aa162e3304b8c79ba7bff30a9b9fd88cd42d221eea75f83c7f4fc2aab4ae3fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7aa162e3304b8c79ba7bff30a9b9fd88cd42d221eea75f83c7f4fc2aab4ae3fd" "/opt/rustwide/cargo-home/bin/cargo" "+df1ae0f7dd168513de2d89beb2cb7a95d4fdc118" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7aa162e3304b8c79ba7bff30a9b9fd88cd42d221eea75f83c7f4fc2aab4ae3fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7aa162e3304b8c79ba7bff30a9b9fd88cd42d221eea75f83c7f4fc2aab4ae3fd" "/opt/rustwide/cargo-home/bin/cargo" "+df1ae0f7dd168513de2d89beb2cb7a95d4fdc118" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `peer_b_id`
[INFO] [stdout]    --> tests/integration.rs:969:9
[INFO] [stdout]     |
[INFO] [stdout] 969 |     let peer_b_id = welcome_b["peer_id"].as_str().unwrap().to_string();
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_peer_b_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b_joined`
[INFO] [stdout]     --> tests/integration.rs:1003:9
[INFO] [stdout]      |
[INFO] [stdout] 1003 |     let b_joined = recv_msg(&mut peer_b).await;
[INFO] [stdout]      |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_b_joined`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peer_b_id`
[INFO] [stdout]     --> tests/integration.rs:1141:9
[INFO] [stdout]      |
[INFO] [stdout] 1141 |     let peer_b_id = b_joined["peer_id"].as_str().unwrap().to_string();
[INFO] [stdout]      |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_peer_b_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peer_b_id`
[INFO] [stdout]     --> tests/integration.rs:1409:9
[INFO] [stdout]      |
[INFO] [stdout] 1409 |     let peer_b_id = b_joined["peer_id"].as_str().unwrap().to_string();
[INFO] [stdout]      |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_peer_b_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peer_b_id`
[INFO] [stdout]     --> tests/integration.rs:1436:9
[INFO] [stdout]      |
[INFO] [stdout] 1436 |     let peer_b_id = b_joined["peer_id"].as_str().unwrap().to_string();
[INFO] [stdout]      |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_peer_b_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` in tuple element 0 that must be used
[INFO] [stdout]    --> tests/integration.rs:733:9
[INFO] [stdout]     |
[INFO] [stdout] 733 |         tokio::join!(ws_task, http_task);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` in tuple element 1 that must be used
[INFO] [stdout]    --> tests/integration.rs:733:9
[INFO] [stdout]     |
[INFO] [stdout] 733 |         tokio::join!(ws_task, http_task);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` in tuple element 0 that must be used
[INFO] [stdout]    --> tests/integration.rs:794:9
[INFO] [stdout]     |
[INFO] [stdout] 794 |         tokio::join!(ws_task, http_task);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` in tuple element 1 that must be used
[INFO] [stdout]    --> tests/integration.rs:794:9
[INFO] [stdout]     |
[INFO] [stdout] 794 |         tokio::join!(ws_task, http_task);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` in tuple element 0 that must be used
[INFO] [stdout]    --> tests/integration.rs:886:9
[INFO] [stdout]     |
[INFO] [stdout] 886 |         tokio::join!(ws_task, http_task);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` in tuple element 1 that must be used
[INFO] [stdout]    --> tests/integration.rs:886:9
[INFO] [stdout]     |
[INFO] [stdout] 886 |         tokio::join!(ws_task, http_task);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` in tuple element 0 that must be used
[INFO] [stdout]    --> tests/integration.rs:959:9
[INFO] [stdout]     |
[INFO] [stdout] 959 |         tokio::join!(ws_task, http_task);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` in tuple element 1 that must be used
[INFO] [stdout]    --> tests/integration.rs:959:9
[INFO] [stdout]     |
[INFO] [stdout] 959 |         tokio::join!(ws_task, http_task);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 22s
[INFO] running `Command { std: "docker" "inspect" "7aa162e3304b8c79ba7bff30a9b9fd88cd42d221eea75f83c7f4fc2aab4ae3fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aa162e3304b8c79ba7bff30a9b9fd88cd42d221eea75f83c7f4fc2aab4ae3fd", kill_on_drop: false }`
[INFO] [stdout] 7aa162e3304b8c79ba7bff30a9b9fd88cd42d221eea75f83c7f4fc2aab4ae3fd
