[INFO] fetching crate amqp-codec 0.1.0...
[INFO] testing amqp-codec-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate amqp-codec 0.1.0 into /workspace/builds/worker-57/source
[INFO] validating manifest of crates.io crate amqp-codec 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate amqp-codec 0.1.0
[INFO] finished tweaking crates.io crate amqp-codec 0.1.0
[INFO] tweaked toml for crates.io crate amqp-codec 0.1.0 written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5599123c13f589670b74f381ec0c105ec842a17a12f9eb7d9e092e0b54391ef
[INFO] running `Command { std: "docker" "start" "-a" "a5599123c13f589670b74f381ec0c105ec842a17a12f9eb7d9e092e0b54391ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5599123c13f589670b74f381ec0c105ec842a17a12f9eb7d9e092e0b54391ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5599123c13f589670b74f381ec0c105ec842a17a12f9eb7d9e092e0b54391ef", kill_on_drop: false }`
[INFO] [stdout] a5599123c13f589670b74f381ec0c105ec842a17a12f9eb7d9e092e0b54391ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9fb93dd20d08d80fe3532aba12ea81603b9cb644058144f1bf9ccec1b936b35
[INFO] running `Command { std: "docker" "start" "-a" "f9fb93dd20d08d80fe3532aba12ea81603b9cb644058144f1bf9ccec1b936b35", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling amqp-codec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling bytestring v0.1.5
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling actix-codec v0.2.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling ordered-float v1.1.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stdout] warning: unused return value of `BytesMut::split_to` that must be used
[INFO] [stdout]   --> src/io.rs:71:21
[INFO] [stdout]    |
[INFO] [stdout] 71 |                     src.split_to(4);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: consider BytesMut::advance if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.81s
[INFO] running `Command { std: "docker" "inspect" "f9fb93dd20d08d80fe3532aba12ea81603b9cb644058144f1bf9ccec1b936b35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9fb93dd20d08d80fe3532aba12ea81603b9cb644058144f1bf9ccec1b936b35", kill_on_drop: false }`
[INFO] [stdout] f9fb93dd20d08d80fe3532aba12ea81603b9cb644058144f1bf9ccec1b936b35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84b13f2d72b58c0138f4056219926703b12443d3d984f99d45a9e73c4334a376
[INFO] running `Command { std: "docker" "start" "-a" "84b13f2d72b58c0138f4056219926703b12443d3d984f99d45a9e73c4334a376", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling amqp-codec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `BytesMut::split_to` that must be used
[INFO] [stdout]   --> src/io.rs:71:21
[INFO] [stdout]    |
[INFO] [stdout] 71 |                     src.split_to(4);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: consider BytesMut::advance if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `decode` is private
[INFO] [stdout]    --> src/codec/decode.rs:606:59
[INFO] [stdout]     |
[INFO] [stdout] 606 |                 assert_eq!($expected, unwrap_value($kind::decode(b1)));
[INFO] [stdout]     |                                                           ^^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `decode` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0603`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `amqp-codec` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "84b13f2d72b58c0138f4056219926703b12443d3d984f99d45a9e73c4334a376", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84b13f2d72b58c0138f4056219926703b12443d3d984f99d45a9e73c4334a376", kill_on_drop: false }`
[INFO] [stdout] 84b13f2d72b58c0138f4056219926703b12443d3d984f99d45a9e73c4334a376