[INFO] fetching crate warm_channels 0.2.1...
[INFO] building warm_channels-0.2.1 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate warm_channels 0.2.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate warm_channels 0.2.1
[INFO] finished tweaking crates.io crate warm_channels 0.2.1
[INFO] tweaked toml for crates.io crate warm_channels 0.2.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate warm_channels 0.2.1 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate warm_channels 0.2.1 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] [stderr]   Downloaded warm_channels v0.1.4
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19f82b5e0f82c39924d8d3a1fb21d4e77f3cd0d5426f1682c26b2eeebf656754
[INFO] running `Command { std: "docker" "start" "-a" "19f82b5e0f82c39924d8d3a1fb21d4e77f3cd0d5426f1682c26b2eeebf656754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19f82b5e0f82c39924d8d3a1fb21d4e77f3cd0d5426f1682c26b2eeebf656754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19f82b5e0f82c39924d8d3a1fb21d4e77f3cd0d5426f1682c26b2eeebf656754", kill_on_drop: false }`
[INFO] [stdout] 19f82b5e0f82c39924d8d3a1fb21d4e77f3cd0d5426f1682c26b2eeebf656754
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fe7ca59d314738d1b8c8bee2b543cb8065c5fe0c0a80625d67d5793f576709c
[INFO] running `Command { std: "docker" "start" "-a" "7fe7ca59d314738d1b8c8bee2b543cb8065c5fe0c0a80625d67d5793f576709c", kill_on_drop: false }`
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[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/channel.rs:129:24
[INFO] [stdout]     |
[INFO] [stdout] 129 |     S::Error: Into<Box<(dyn std::error::Error + std::marker::Send + Sync + 'static)>> + Send + Sync,
[INFO] [stdout]     |                        ^                                                          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 129 -     S::Error: Into<Box<(dyn std::error::Error + std::marker::Send + Sync + 'static)>> + Send + Sync,
[INFO] [stdout] 129 +     S::Error: Into<Box<dyn std::error::Error + std::marker::Send + Sync + 'static >> + Send + Sync,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/channel.rs:151:24
[INFO] [stdout]     |
[INFO] [stdout] 151 |     S::Error: Into<Box<(dyn std::error::Error + std::marker::Send + Sync + 'static)>>,
[INFO] [stdout]     |                        ^                                                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 151 -     S::Error: Into<Box<(dyn std::error::Error + std::marker::Send + Sync + 'static)>>,
[INFO] [stdout] 151 +     S::Error: Into<Box<dyn std::error::Error + std::marker::Send + Sync + 'static >>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 46.60s
[INFO] running `Command { std: "docker" "inspect" "7fe7ca59d314738d1b8c8bee2b543cb8065c5fe0c0a80625d67d5793f576709c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fe7ca59d314738d1b8c8bee2b543cb8065c5fe0c0a80625d67d5793f576709c", kill_on_drop: false }`
[INFO] [stdout] 7fe7ca59d314738d1b8c8bee2b543cb8065c5fe0c0a80625d67d5793f576709c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c3fb3fa2daada69a93b82ec0fbc069901328eb100f288999945d5d0eb046ffd
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[INFO] [stderr]    Compiling warm_channels v0.1.4
[INFO] [stderr]    Compiling warm_channels v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/channel.rs:129:24
[INFO] [stdout]     |
[INFO] [stdout] 129 |     S::Error: Into<Box<(dyn std::error::Error + std::marker::Send + Sync + 'static)>> + Send + Sync,
[INFO] [stdout]     |                        ^                                                          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 129 -     S::Error: Into<Box<(dyn std::error::Error + std::marker::Send + Sync + 'static)>> + Send + Sync,
[INFO] [stdout] 129 +     S::Error: Into<Box<dyn std::error::Error + std::marker::Send + Sync + 'static >> + Send + Sync,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/channel.rs:151:24
[INFO] [stdout]     |
[INFO] [stdout] 151 |     S::Error: Into<Box<(dyn std::error::Error + std::marker::Send + Sync + 'static)>>,
[INFO] [stdout]     |                        ^                                                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 151 -     S::Error: Into<Box<(dyn std::error::Error + std::marker::Send + Sync + 'static)>>,
[INFO] [stdout] 151 +     S::Error: Into<Box<dyn std::error::Error + std::marker::Send + Sync + 'static >>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling comprehensive_warm_channels v0.1.1
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/channel.rs:129:24
[INFO] [stdout]     |
[INFO] [stdout] 129 |     S::Error: Into<Box<(dyn std::error::Error + std::marker::Send + Sync + 'static)>> + Send + Sync,
[INFO] [stdout]     |                        ^                                                          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 129 -     S::Error: Into<Box<(dyn std::error::Error + std::marker::Send + Sync + 'static)>> + Send + Sync,
[INFO] [stdout] 129 +     S::Error: Into<Box<dyn std::error::Error + std::marker::Send + Sync + 'static >> + Send + Sync,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/channel.rs:151:24
[INFO] [stdout]     |
[INFO] [stdout] 151 |     S::Error: Into<Box<(dyn std::error::Error + std::marker::Send + Sync + 'static)>>,
[INFO] [stdout]     |                        ^                                                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 151 -     S::Error: Into<Box<(dyn std::error::Error + std::marker::Send + Sync + 'static)>>,
[INFO] [stdout] 151 +     S::Error: Into<Box<dyn std::error::Error + std::marker::Send + Sync + 'static >>,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 50.85s
[INFO] running `Command { std: "docker" "inspect" "3c3fb3fa2daada69a93b82ec0fbc069901328eb100f288999945d5d0eb046ffd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c3fb3fa2daada69a93b82ec0fbc069901328eb100f288999945d5d0eb046ffd", kill_on_drop: false }`
[INFO] [stdout] 3c3fb3fa2daada69a93b82ec0fbc069901328eb100f288999945d5d0eb046ffd
