[INFO] fetching crate polywrap_msgpack_serde 0.0.2...
[INFO] checking polywrap_msgpack_serde-0.0.2 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate polywrap_msgpack_serde 0.0.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate polywrap_msgpack_serde 0.0.2
[INFO] finished tweaking crates.io crate polywrap_msgpack_serde 0.0.2
[INFO] tweaked toml for crates.io crate polywrap_msgpack_serde 0.0.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate polywrap_msgpack_serde 0.0.2 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 19 packages to latest compatible versions
[INFO] [stderr]       Adding bigdecimal v0.3.1 (available: v0.4.8)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.16)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 223d81ec71358e58f2086abc44242cc4430763c30ca9adacdbfdd90401a3d4dd
[INFO] running `Command { std: "docker" "start" "-a" "223d81ec71358e58f2086abc44242cc4430763c30ca9adacdbfdd90401a3d4dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "223d81ec71358e58f2086abc44242cc4430763c30ca9adacdbfdd90401a3d4dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "223d81ec71358e58f2086abc44242cc4430763c30ca9adacdbfdd90401a3d4dd", kill_on_drop: false }`
[INFO] [stdout] 223d81ec71358e58f2086abc44242cc4430763c30ca9adacdbfdd90401a3d4dd
[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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3181cb0eeebc433944569a3d861feb3ea1dc1c3aa6dea923956b08a9ec787fcd
[INFO] running `Command { std: "docker" "start" "-a" "3181cb0eeebc433944569a3d861feb3ea1dc1c3aa6dea923956b08a9ec787fcd", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking serde_bytes v0.11.17
[INFO] [stderr]     Checking bigdecimal v0.3.1
[INFO] [stderr]     Checking polywrap_msgpack_serde v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Enum` is never constructed
[INFO] [stdout]  --> src/de/_enum.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Enum<'a> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Enum` is never constructed
[INFO] [stdout]  --> src/de/_enum.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Enum<'a> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.91s
[INFO] running `Command { std: "docker" "inspect" "3181cb0eeebc433944569a3d861feb3ea1dc1c3aa6dea923956b08a9ec787fcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3181cb0eeebc433944569a3d861feb3ea1dc1c3aa6dea923956b08a9ec787fcd", kill_on_drop: false }`
[INFO] [stdout] 3181cb0eeebc433944569a3d861feb3ea1dc1c3aa6dea923956b08a9ec787fcd