[INFO] fetching crate kafka-serde 0.1.0...
[INFO] testing kafka-serde-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate kafka-serde 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate kafka-serde 0.1.0
[INFO] finished tweaking crates.io crate kafka-serde 0.1.0
[INFO] tweaked toml for crates.io crate kafka-serde 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate kafka-serde 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded endianness v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b15bd296f40ccef47124a2c30eddbc214c93a39a74cbb7055d4bd81ab02506f
[INFO] running `Command { std: "docker" "start" "-a" "6b15bd296f40ccef47124a2c30eddbc214c93a39a74cbb7055d4bd81ab02506f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b15bd296f40ccef47124a2c30eddbc214c93a39a74cbb7055d4bd81ab02506f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b15bd296f40ccef47124a2c30eddbc214c93a39a74cbb7055d4bd81ab02506f", kill_on_drop: false }`
[INFO] [stdout] 6b15bd296f40ccef47124a2c30eddbc214c93a39a74cbb7055d4bd81ab02506f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c4451bceec88c65689670e925c4b158392f7b2cf33aa98f208c3db524b85575
[INFO] running `Command { std: "docker" "start" "-a" "9c4451bceec88c65689670e925c4b158392f7b2cf33aa98f208c3db524b85575", kill_on_drop: false }`
[INFO] [stderr]    Compiling endianness v0.2.0
[INFO] [stderr]    Compiling kafka-serde v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "9c4451bceec88c65689670e925c4b158392f7b2cf33aa98f208c3db524b85575", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c4451bceec88c65689670e925c4b158392f7b2cf33aa98f208c3db524b85575", kill_on_drop: false }`
[INFO] [stdout] 9c4451bceec88c65689670e925c4b158392f7b2cf33aa98f208c3db524b85575
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fb4a8982c2ed2884a8063fa4a9010ac65042e0e6016c1e3fe7136c42e97467c
[INFO] running `Command { std: "docker" "start" "-a" "8fb4a8982c2ed2884a8063fa4a9010ac65042e0e6016c1e3fe7136c42e97467c", kill_on_drop: false }`
[INFO] [stderr]    Compiling kafka-serde v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `string` and `bytes` are never read
[INFO] [stdout]    --> src/de.rs:465:9
[INFO] [stdout]     |
[INFO] [stdout] 464 |     struct Foo<'a> {
[INFO] [stdout]     |            --- fields in this struct
[INFO] [stdout] 465 |         string: &'a str,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 466 |         bytes: &'a [u8],
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Foo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "8fb4a8982c2ed2884a8063fa4a9010ac65042e0e6016c1e3fe7136c42e97467c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fb4a8982c2ed2884a8063fa4a9010ac65042e0e6016c1e3fe7136c42e97467c", kill_on_drop: false }`
[INFO] [stdout] 8fb4a8982c2ed2884a8063fa4a9010ac65042e0e6016c1e3fe7136c42e97467c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9b26a070bbac8f97771a43aab177f78883628b6dc4f0a50047a000d66c063a2a
[INFO] running `Command { std: "docker" "start" "-a" "9b26a070bbac8f97771a43aab177f78883628b6dc4f0a50047a000d66c063a2a", kill_on_drop: false }`
[INFO] [stderr] warning: fields `string` and `bytes` are never read
[INFO] [stderr]    --> src/de.rs:465:9
[INFO] [stderr]     |
[INFO] [stderr] 464 |     struct Foo<'a> {
[INFO] [stderr]     |            --- fields in this struct
[INFO] [stderr] 465 |         string: &'a str,
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr] 466 |         bytes: &'a [u8],
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Foo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `kafka-serde` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/kafka_serde-527c0ab293d0f4d8)
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test de::test::test_serde_decode_byte_reference ... ok
[INFO] [stdout] test de::test::test_nullable_bytes ... ok
[INFO] [stdout] test de::test::test_serde_decode_empty_string_reference ... ok
[INFO] [stdout] test de::test::test_serde_decode_empty_byte_reference ... ok
[INFO] [stdout] test de::test::test_serde_decode_byte_reference_sequence ... ok
[INFO] [stdout] test de::test::test_serde_decode_i32 ... ok
[INFO] [stdout] test de::test::test_serde_decode_nullable_string ... ok
[INFO] [stdout] test de::test::test_serde_decode_string ... ok
[INFO] [stdout] test de::test::test_serde_decode_seq_u32 ... ok
[INFO] [stdout] test de::test::test_serde_decode_string_reference ... ok
[INFO] [stdout] test de::test::test_de_u8 ... ok
[INFO] [stdout] test de::test::test_serde_decode_u32 ... ok
[INFO] [stdout] test ser::test::test_enum_repr ... ok
[INFO] [stdout] test ser::test::test_integers ... ok
[INFO] [stdout] test ser::test::test_list ... ok
[INFO] [stdout] test ser::test::test_some ... ok
[INFO] [stdout] test ser::test::test_struct ... ok
[INFO] [stdout] test ser::test::test_strings ... ok
[INFO] [stdout] test ser::test::test_none ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests kafka_serde
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/de.rs - de::from_bytes (line 101) ... ok
[INFO] [stdout] test src/ser.rs - ser::to_writer (line 20) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.36s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9b26a070bbac8f97771a43aab177f78883628b6dc4f0a50047a000d66c063a2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b26a070bbac8f97771a43aab177f78883628b6dc4f0a50047a000d66c063a2a", kill_on_drop: false }`
[INFO] [stdout] 9b26a070bbac8f97771a43aab177f78883628b6dc4f0a50047a000d66c063a2a