[INFO] fetching crate kafka-io 0.1.0...
[INFO] testing kafka-io-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate kafka-io 0.1.0 into /workspace/builds/worker-33/source
[INFO] validating manifest of crates.io crate kafka-io 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 kafka-io 0.1.0
[INFO] finished tweaking crates.io crate kafka-io 0.1.0
[INFO] tweaked toml for crates.io crate kafka-io 0.1.0 written to /workspace/builds/worker-33/source/Cargo.toml
[INFO] crate crates.io crate kafka-io 0.1.0 already has a lockfile, it will not be regenerated
[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-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] 0762649b0e8610087e2908feb2a3ed3a0b0e649e126af4e4a9b3b078edf53402
[INFO] running `Command { std: "docker" "start" "-a" "0762649b0e8610087e2908feb2a3ed3a0b0e649e126af4e4a9b3b078edf53402", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0762649b0e8610087e2908feb2a3ed3a0b0e649e126af4e4a9b3b078edf53402", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0762649b0e8610087e2908feb2a3ed3a0b0e649e126af4e4a9b3b078edf53402", kill_on_drop: false }`
[INFO] [stdout] 0762649b0e8610087e2908feb2a3ed3a0b0e649e126af4e4a9b3b078edf53402
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] b067976522042a813d4cb19c1b4aa49235d995a6b392bee71967fb4d1eb44309
[INFO] running `Command { std: "docker" "start" "-a" "b067976522042a813d4cb19c1b4aa49235d995a6b392bee71967fb4d1eb44309", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling futures-sink v0.3.9
[INFO] [stderr]    Compiling futures-core v0.3.9
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling futures-io v0.3.9
[INFO] [stderr]    Compiling pin-project-lite v0.2.3
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling encode_unicode v0.3.6
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling thread_local v1.1.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling futures-task v0.3.9
[INFO] [stderr]    Compiling futures-channel v0.3.9
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling rdkafka-sys v2.1.0+1.5.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling futures-macro v0.3.9
[INFO] [stderr]    Compiling derivative v2.1.3
[INFO] [stderr]    Compiling futures-util v0.3.9
[INFO] [stderr]    Compiling futures-executor v0.3.9
[INFO] [stderr]    Compiling futures v0.3.9
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling prettytable-rs v0.8.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.1
[INFO] [stderr]    Compiling num_enum v0.5.1
[INFO] [stderr]    Compiling rdkafka v0.24.0
[INFO] [stderr]    Compiling kafka-io v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `Command { std: "docker" "inspect" "b067976522042a813d4cb19c1b4aa49235d995a6b392bee71967fb4d1eb44309", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b067976522042a813d4cb19c1b4aa49235d995a6b392bee71967fb4d1eb44309", kill_on_drop: false }`
[INFO] [stdout] b067976522042a813d4cb19c1b4aa49235d995a6b392bee71967fb4d1eb44309
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] 956216a4f737c6b3856a81498dce139437524b90df7c82770562e2372b419987
[INFO] running `Command { std: "docker" "start" "-a" "956216a4f737c6b3856a81498dce139437524b90df7c82770562e2372b419987", kill_on_drop: false }`
[INFO] [stderr]    Compiling kafka-io v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `Command { std: "docker" "inspect" "956216a4f737c6b3856a81498dce139437524b90df7c82770562e2372b419987", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "956216a4f737c6b3856a81498dce139437524b90df7c82770562e2372b419987", kill_on_drop: false }`
[INFO] [stdout] 956216a4f737c6b3856a81498dce139437524b90df7c82770562e2372b419987
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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", kill_on_drop: false }`
[INFO] [stdout] 730d91875b6092b9e3d696aa3ebb332168ef6c1265fcdd6a64ad95a8a198e0fa
[INFO] running `Command { std: "docker" "start" "-a" "730d91875b6092b9e3d696aa3ebb332168ef6c1265fcdd6a64ad95a8a198e0fa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.80s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kafka_io-674f19abae47e059)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kio-db6bbb54a99ad05e)
[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] [stderr]    Doc-tests kafka-io
[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" "730d91875b6092b9e3d696aa3ebb332168ef6c1265fcdd6a64ad95a8a198e0fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "730d91875b6092b9e3d696aa3ebb332168ef6c1265fcdd6a64ad95a8a198e0fa", kill_on_drop: false }`
[INFO] [stdout] 730d91875b6092b9e3d696aa3ebb332168ef6c1265fcdd6a64ad95a8a198e0fa