[INFO] fetching crate amqp_serde 0.4.2...
[INFO] checking amqp_serde-0.4.2 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate amqp_serde 0.4.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate amqp_serde 0.4.2
[INFO] finished tweaking crates.io crate amqp_serde 0.4.2
[INFO] tweaked toml for crates.io crate amqp_serde 0.4.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate amqp_serde 0.4.2 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate amqp_serde 0.4.2 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4df697f34ad04a6e21a3704ab01411b305cf42e6c6b84be6801e9e2760a873bf
[INFO] running `Command { std: "docker" "start" "-a" "4df697f34ad04a6e21a3704ab01411b305cf42e6c6b84be6801e9e2760a873bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4df697f34ad04a6e21a3704ab01411b305cf42e6c6b84be6801e9e2760a873bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4df697f34ad04a6e21a3704ab01411b305cf42e6c6b84be6801e9e2760a873bf", kill_on_drop: false }`
[INFO] [stdout] 4df697f34ad04a6e21a3704ab01411b305cf42e6c6b84be6801e9e2760a873bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba001bd6ef5ce5299f6e632f0e98184f56924a1da2bb04f0b8ebc5cd67d23f87
[INFO] running `Command { std: "docker" "start" "-a" "ba001bd6ef5ce5299f6e632f0e98184f56924a1da2bb04f0b8ebc5cd67d23f87", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.71
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]     Checking serde_bytes v0.11.15
[INFO] [stderr]     Checking amqp_serde v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/de.rs:739:22
[INFO] [stdout]     |
[INFO] [stdout] 739 |         struct Frame(u32);
[INFO] [stdout]     |                ----- ^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/de.rs:748:22
[INFO] [stdout]     |
[INFO] [stdout] 748 |         struct Frame(Vec<u8>);
[INFO] [stdout]     |                ----- ^^^^^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]    --> src/de.rs:757:22
[INFO] [stdout]     |
[INFO] [stdout] 757 |         struct Frame(u8, Vec<u8>);
[INFO] [stdout]     |                ----- ^^  ^^^^^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                fields in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing these fields
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.53s
[INFO] running `Command { std: "docker" "inspect" "ba001bd6ef5ce5299f6e632f0e98184f56924a1da2bb04f0b8ebc5cd67d23f87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba001bd6ef5ce5299f6e632f0e98184f56924a1da2bb04f0b8ebc5cd67d23f87", kill_on_drop: false }`
[INFO] [stdout] ba001bd6ef5ce5299f6e632f0e98184f56924a1da2bb04f0b8ebc5cd67d23f87