[INFO] fetching crate wakezilla 0.1.43...
[INFO] checking wakezilla-0.1.43 against try#0bdee9e879c87b7211d316e9152109cfd46c576b for pr-150097
[INFO] extracting crate wakezilla 0.1.43 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate wakezilla 0.1.43
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate wakezilla 0.1.43
[INFO] tweaked toml for crates.io crate wakezilla 0.1.43 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wakezilla 0.1.43 on toolchain 0bdee9e879c87b7211d316e9152109cfd46c576b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate wakezilla 0.1.43 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" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c08af7044b24cd1b7684dab29d21ec8b7a79330d49b1983281d7cdea0ad23dc
[INFO] running `Command { std: "docker" "start" "-a" "1c08af7044b24cd1b7684dab29d21ec8b7a79330d49b1983281d7cdea0ad23dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c08af7044b24cd1b7684dab29d21ec8b7a79330d49b1983281d7cdea0ad23dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c08af7044b24cd1b7684dab29d21ec8b7a79330d49b1983281d7cdea0ad23dc", kill_on_drop: false }`
[INFO] [stdout] 1c08af7044b24cd1b7684dab29d21ec8b7a79330d49b1983281d7cdea0ad23dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0bdee9e879c87b7211d316e9152109cfd46c576b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3cb5dbbd48bc526acaa3cd8eb8a10e0b8a3433ad3b502669c0689591306e53d4
[INFO] running `Command { std: "docker" "start" "-a" "3cb5dbbd48bc526acaa3cd8eb8a10e0b8a3433ad3b502669c0689591306e53d4", kill_on_drop: false }`
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[INFO] [stderr]     Checking wakezilla v0.1.43 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `tokio::net::TcpStream`
[INFO] [stdout]    --> src/connection_pool.rs:238:9
[INFO] [stdout]     |
[INFO] [stdout] 238 |     use tokio::net::TcpStream;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::net::TcpStream`
[INFO] [stdout]    --> src/connection_pool.rs:238:9
[INFO] [stdout]     |
[INFO] [stdout] 238 |     use tokio::net::TcpStream;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `return_connection` is never used
[INFO] [stdout]   --> src/connection_pool.rs:77:18
[INFO] [stdout]    |
[INFO] [stdout] 66 | impl ConnectionPool {
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub async fn return_connection(&self, target_addr: SocketAddr, stream: TcpStream) {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 55.57s
[INFO] running `Command { std: "docker" "inspect" "3cb5dbbd48bc526acaa3cd8eb8a10e0b8a3433ad3b502669c0689591306e53d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cb5dbbd48bc526acaa3cd8eb8a10e0b8a3433ad3b502669c0689591306e53d4", kill_on_drop: false }`
[INFO] [stdout] 3cb5dbbd48bc526acaa3cd8eb8a10e0b8a3433ad3b502669c0689591306e53d4