[INFO] fetching crate p2p_communication 0.1.0...
[INFO] testing p2p_communication-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate p2p_communication 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate p2p_communication 0.1.0
[INFO] finished tweaking crates.io crate p2p_communication 0.1.0
[INFO] tweaked toml for crates.io crate p2p_communication 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate p2p_communication 0.1.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate p2p_communication 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" "+beta-2026-04-21" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a354654be30d2f47e3b935dcd6ffe60d7e6a67cee235473314cbf1f3282d84d
[INFO] running `Command { std: "docker" "start" "-a" "4a354654be30d2f47e3b935dcd6ffe60d7e6a67cee235473314cbf1f3282d84d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a354654be30d2f47e3b935dcd6ffe60d7e6a67cee235473314cbf1f3282d84d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a354654be30d2f47e3b935dcd6ffe60d7e6a67cee235473314cbf1f3282d84d", kill_on_drop: false }`
[INFO] [stdout] 4a354654be30d2f47e3b935dcd6ffe60d7e6a67cee235473314cbf1f3282d84d
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95db492c63351ac681daa28e4b83f4dd2fd6e5ecdc6d6d0e2dce00cdb5588849
[INFO] running `Command { std: "docker" "start" "-a" "95db492c63351ac681daa28e4b83f4dd2fd6e5ecdc6d6d0e2dce00cdb5588849", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.71
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.43
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling tokio v1.35.1
[INFO] [stderr]    Compiling p2p_communication v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `AsyncWriteExt`
[INFO] [stdout]  --> src/main.rs:2:31
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::io::{AsyncReadExt, AsyncWriteExt};
[INFO] [stdout]   |                               ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let (tx, mut rx) = mpsc::channel::<String>(100);
[INFO] [stdout]    |              ----^^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.09s
[INFO] running `Command { std: "docker" "inspect" "95db492c63351ac681daa28e4b83f4dd2fd6e5ecdc6d6d0e2dce00cdb5588849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95db492c63351ac681daa28e4b83f4dd2fd6e5ecdc6d6d0e2dce00cdb5588849", kill_on_drop: false }`
[INFO] [stdout] 95db492c63351ac681daa28e4b83f4dd2fd6e5ecdc6d6d0e2dce00cdb5588849
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cfe22309bee2227aa4a8c8a01fba186000dfa0dc30d5fcc0dec69d55d9f4df6
[INFO] running `Command { std: "docker" "start" "-a" "4cfe22309bee2227aa4a8c8a01fba186000dfa0dc30d5fcc0dec69d55d9f4df6", kill_on_drop: false }`
[INFO] [stderr]    Compiling p2p_communication v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `AsyncWriteExt`
[INFO] [stdout]  --> src/main.rs:2:31
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::io::{AsyncReadExt, AsyncWriteExt};
[INFO] [stdout]   |                               ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let (tx, mut rx) = mpsc::channel::<String>(100);
[INFO] [stdout]    |              ----^^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "4cfe22309bee2227aa4a8c8a01fba186000dfa0dc30d5fcc0dec69d55d9f4df6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cfe22309bee2227aa4a8c8a01fba186000dfa0dc30d5fcc0dec69d55d9f4df6", kill_on_drop: false }`
[INFO] [stdout] 4cfe22309bee2227aa4a8c8a01fba186000dfa0dc30d5fcc0dec69d55d9f4df6
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b73afd47ccad4a02851f38684d6f74a8029e0226ec01773aeb69e3dd7f237567
[INFO] running `Command { std: "docker" "start" "-a" "b73afd47ccad4a02851f38684d6f74a8029e0226ec01773aeb69e3dd7f237567", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `AsyncWriteExt`
[INFO] [stderr]  --> src/main.rs:2:31
[INFO] [stderr]   |
[INFO] [stderr] 2 | use tokio::io::{AsyncReadExt, AsyncWriteExt};
[INFO] [stderr]   |                               ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:13:14
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let (tx, mut rx) = mpsc::channel::<String>(100);
[INFO] [stderr]    |              ----^^
[INFO] [stderr]    |              |
[INFO] [stderr]    |              help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `p2p_communication` (bin "p2p_communication" test) generated 2 warnings (run `cargo fix --bin "p2p_communication" -p p2p_communication --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/p2p_communication-22163e2c86ae31da)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b73afd47ccad4a02851f38684d6f74a8029e0226ec01773aeb69e3dd7f237567", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b73afd47ccad4a02851f38684d6f74a8029e0226ec01773aeb69e3dd7f237567", kill_on_drop: false }`
[INFO] [stdout] b73afd47ccad4a02851f38684d6f74a8029e0226ec01773aeb69e3dd7f237567
