[INFO] fetching crate metalmq-client 0.2.1...
[INFO] checking metalmq-client-0.2.1 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate metalmq-client 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate metalmq-client 0.2.1 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metalmq-client 0.2.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate metalmq-client 0.2.1
[INFO] tweaked toml for crates.io crate metalmq-client 0.2.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e6434d2abf9ec7c7841018b343a190bd1c24af1127765f6093471f0dda7b514
[INFO] running `Command { std: "docker" "start" "-a" "5e6434d2abf9ec7c7841018b343a190bd1c24af1127765f6093471f0dda7b514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e6434d2abf9ec7c7841018b343a190bd1c24af1127765f6093471f0dda7b514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e6434d2abf9ec7c7841018b343a190bd1c24af1127765f6093471f0dda7b514", kill_on_drop: false }`
[INFO] [stdout] 5e6434d2abf9ec7c7841018b343a190bd1c24af1127765f6093471f0dda7b514
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0925da561ab5b955173e51dc4b911b731d342b7656be6d408aad63fa1638478
[INFO] running `Command { std: "docker" "start" "-a" "d0925da561ab5b955173e51dc4b911b731d342b7656be6d408aad63fa1638478", kill_on_drop: false }`
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[INFO] [stderr]    Compiling proc-macro2 v1.0.28
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[INFO] [stderr]     Checking metalmq-client v0.2.1 (/opt/rustwide/workdir)
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[INFO] [stdout] warning: field is never read: `receiver`
[INFO] [stdout]  --> tests/exchange.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     receiver: metalmq_client::Client,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `last_result`
[INFO] [stdout]  --> tests/exchange.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     last_result: Result<()>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `channel`
[INFO] [stdout]  --> tests/acceptance.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     channel: Option<metalmq_client::Channel>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.17s
[INFO] running `Command { std: "docker" "inspect" "d0925da561ab5b955173e51dc4b911b731d342b7656be6d408aad63fa1638478", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0925da561ab5b955173e51dc4b911b731d342b7656be6d408aad63fa1638478", kill_on_drop: false }`
[INFO] [stdout] d0925da561ab5b955173e51dc4b911b731d342b7656be6d408aad63fa1638478