[INFO] fetching crate kafka-serde 0.1.0...
[INFO] checking kafka-serde-0.1.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate kafka-serde 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate kafka-serde 0.1.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 763cca852882192ea02baba586a2468e092ebf1060bbc95385d41a91b6d56bce
[INFO] running `Command { std: "docker" "start" "-a" "763cca852882192ea02baba586a2468e092ebf1060bbc95385d41a91b6d56bce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "763cca852882192ea02baba586a2468e092ebf1060bbc95385d41a91b6d56bce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "763cca852882192ea02baba586a2468e092ebf1060bbc95385d41a91b6d56bce", kill_on_drop: false }`
[INFO] [stdout] 763cca852882192ea02baba586a2468e092ebf1060bbc95385d41a91b6d56bce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce0350e3e114a44646170a72e6bb4b8e3a90f9e397da330d4533ab148fa46cfb
[INFO] running `Command { std: "docker" "start" "-a" "ce0350e3e114a44646170a72e6bb4b8e3a90f9e397da330d4533ab148fa46cfb", kill_on_drop: false }`
[INFO] [stderr]     Checking endianness v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stderr]    Compiling serde_repr v0.1.19
[INFO] [stderr]     Checking serde v1.0.209
[INFO] [stderr]     Checking 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 derived impls for the traits `Default` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.14s
[INFO] running `Command { std: "docker" "inspect" "ce0350e3e114a44646170a72e6bb4b8e3a90f9e397da330d4533ab148fa46cfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce0350e3e114a44646170a72e6bb4b8e3a90f9e397da330d4533ab148fa46cfb", kill_on_drop: false }`
[INFO] [stdout] ce0350e3e114a44646170a72e6bb4b8e3a90f9e397da330d4533ab148fa46cfb