[INFO] fetching crate kafka-serde 0.1.0...
[INFO] testing kafka-serde-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate kafka-serde 0.1.0 into /workspace/builds/worker-4-tc2/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-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate kafka-serde 0.1.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b0a14a97c7fa125015a3f17030fc8d457922c9d34103323b3518c69213026a6
[INFO] running `Command { std: "docker" "start" "-a" "5b0a14a97c7fa125015a3f17030fc8d457922c9d34103323b3518c69213026a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b0a14a97c7fa125015a3f17030fc8d457922c9d34103323b3518c69213026a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b0a14a97c7fa125015a3f17030fc8d457922c9d34103323b3518c69213026a6", kill_on_drop: false }`
[INFO] [stdout] 5b0a14a97c7fa125015a3f17030fc8d457922c9d34103323b3518c69213026a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80414e2d5a564dc756e19e224380f4f2974d4776ad116787ca4fb9d197c1421a
[INFO] running `Command { std: "docker" "start" "-a" "80414e2d5a564dc756e19e224380f4f2974d4776ad116787ca4fb9d197c1421a", 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 0.42s
[INFO] running `Command { std: "docker" "inspect" "80414e2d5a564dc756e19e224380f4f2974d4776ad116787ca4fb9d197c1421a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80414e2d5a564dc756e19e224380f4f2974d4776ad116787ca4fb9d197c1421a", kill_on_drop: false }`
[INFO] [stdout] 80414e2d5a564dc756e19e224380f4f2974d4776ad116787ca4fb9d197c1421a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75ac9c22152b5c55d1dd46e89ab0e92258dcb3947303f31544abb316d1586eee
[INFO] running `Command { std: "docker" "start" "-a" "75ac9c22152b5c55d1dd46e89ab0e92258dcb3947303f31544abb316d1586eee", 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "75ac9c22152b5c55d1dd46e89ab0e92258dcb3947303f31544abb316d1586eee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75ac9c22152b5c55d1dd46e89ab0e92258dcb3947303f31544abb316d1586eee", kill_on_drop: false }`
[INFO] [stdout] 75ac9c22152b5c55d1dd46e89ab0e92258dcb3947303f31544abb316d1586eee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a9f9fb23842df1c55034b2a250613da6debe45c24b2f2f0482b48baba7b4a24d
[INFO] running `Command { std: "docker" "start" "-a" "a9f9fb23842df1c55034b2a250613da6debe45c24b2f2f0482b48baba7b4a24d", 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)]` (part of `#[warn(unused)]`) 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 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/kafka_serde-95e61f773aad2c9c)
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test de::test::test_serde_decode_byte_reference ... ok
[INFO] [stdout] test de::test::test_de_u8 ... ok
[INFO] [stdout] test de::test::test_nullable_bytes ... ok
[INFO] [stdout] test de::test::test_serde_decode_byte_reference_sequence ... ok
[INFO] [stdout] test de::test::test_serde_decode_empty_byte_reference ... ok
[INFO] [stdout] test de::test::test_serde_decode_empty_string_reference ... ok
[INFO] [stdout] test de::test::test_serde_decode_i32 ... ok
[INFO] [stdout] test de::test::test_serde_decode_seq_u32 ... ok
[INFO] [stdout] test de::test::test_serde_decode_u32 ... ok
[INFO] [stdout] test ser::test::test_enum_repr ... ok
[INFO] [stdout] test de::test::test_serde_decode_string_reference ... ok
[INFO] [stdout] test ser::test::test_list ... ok
[INFO] [stdout] test de::test::test_serde_decode_string ... ok
[INFO] [stdout] test ser::test::test_some ... ok
[INFO] [stdout] test ser::test::test_strings ... ok
[INFO] [stdout] test ser::test::test_none ... ok
[INFO] [stdout] test ser::test::test_struct ... ok
[INFO] [stdout] test de::test::test_serde_decode_nullable_string ... ok
[INFO] [stdout] test ser::test::test_integers ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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 0.33s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a9f9fb23842df1c55034b2a250613da6debe45c24b2f2f0482b48baba7b4a24d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9f9fb23842df1c55034b2a250613da6debe45c24b2f2f0482b48baba7b4a24d", kill_on_drop: false }`
[INFO] [stdout] a9f9fb23842df1c55034b2a250613da6debe45c24b2f2f0482b48baba7b4a24d