[INFO] fetching crate rhythm 0.1.0...
[INFO] building rhythm-0.1.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate rhythm 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate rhythm 0.1.0
[INFO] finished tweaking crates.io crate rhythm 0.1.0
[INFO] tweaked toml for crates.io crate rhythm 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rhythm 0.1.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rhythm 0.1.0 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d77a9051f9aa25947bdd341930c90ac12ab5319336432e7efda3dd0fb7e271d4
[INFO] running `Command { std: "docker" "start" "-a" "d77a9051f9aa25947bdd341930c90ac12ab5319336432e7efda3dd0fb7e271d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d77a9051f9aa25947bdd341930c90ac12ab5319336432e7efda3dd0fb7e271d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d77a9051f9aa25947bdd341930c90ac12ab5319336432e7efda3dd0fb7e271d4", kill_on_drop: false }`
[INFO] [stdout] d77a9051f9aa25947bdd341930c90ac12ab5319336432e7efda3dd0fb7e271d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6c2245e85900aa84c57769af9640b577cf78821a8c8ef1c588f115d4225af81
[INFO] running `Command { std: "docker" "start" "-a" "d6c2245e85900aa84c57769af9640b577cf78821a8c8ef1c588f115d4225af81", kill_on_drop: false }`
[INFO] [stderr]    Compiling rhythm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "d6c2245e85900aa84c57769af9640b577cf78821a8c8ef1c588f115d4225af81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6c2245e85900aa84c57769af9640b577cf78821a8c8ef1c588f115d4225af81", kill_on_drop: false }`
[INFO] [stdout] d6c2245e85900aa84c57769af9640b577cf78821a8c8ef1c588f115d4225af81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecefd3dc37050ae93a814bdadf903e2a2931a9f2ab70aa0f76f9289ac3db34bb
[INFO] running `Command { std: "docker" "start" "-a" "ecefd3dc37050ae93a814bdadf903e2a2931a9f2ab70aa0f76f9289ac3db34bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling smallvec v1.11.0
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.10
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]    Compiling syn v2.0.27
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling mio v0.8.8
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling rhythm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `ip` and `port` are never read
[INFO] [stdout]   --> examples/ddos.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct Server {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 32 |     ip: String,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 33 |     port: u16,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `disconnect` is never used
[INFO] [stdout]   --> examples/ddos.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl Server {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 64 |     fn disconnect(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 15.40s
[INFO] running `Command { std: "docker" "inspect" "ecefd3dc37050ae93a814bdadf903e2a2931a9f2ab70aa0f76f9289ac3db34bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecefd3dc37050ae93a814bdadf903e2a2931a9f2ab70aa0f76f9289ac3db34bb", kill_on_drop: false }`
[INFO] [stdout] ecefd3dc37050ae93a814bdadf903e2a2931a9f2ab70aa0f76f9289ac3db34bb