[INFO] fetching crate plykit 0.1.7...
[INFO] testing plykit-0.1.7 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate plykit 0.1.7 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate plykit 0.1.7
[INFO] finished tweaking crates.io crate plykit 0.1.7
[INFO] tweaked toml for crates.io crate plykit 0.1.7 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate plykit 0.1.7 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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-2025-10-28" "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 11 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-2025-10-28" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b16a1e7b7a6f09c290073e0a995a352d6e9c91ee2fd88e2910168024f4d24a89
[INFO] running `Command { std: "docker" "start" "-a" "b16a1e7b7a6f09c290073e0a995a352d6e9c91ee2fd88e2910168024f4d24a89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b16a1e7b7a6f09c290073e0a995a352d6e9c91ee2fd88e2910168024f4d24a89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b16a1e7b7a6f09c290073e0a995a352d6e9c91ee2fd88e2910168024f4d24a89", kill_on_drop: false }`
[INFO] [stdout] b16a1e7b7a6f09c290073e0a995a352d6e9c91ee2fd88e2910168024f4d24a89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d51972fa2e85c65c1db95231c84d3e224a9648baa89d292637675153a7ffd54
[INFO] running `Command { std: "docker" "start" "-a" "1d51972fa2e85c65c1db95231c84d3e224a9648baa89d292637675153a7ffd54", kill_on_drop: false }`
[INFO] [stderr]    Compiling plykit v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `cause` is never read
[INFO] [stdout]   --> src/model/mod.rs:22:26
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct StringError { cause:String }
[INFO] [stdout]    |            -----------   ^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `StringError` has derived impls for the traits `Debug` and `Clone`, but these are 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 `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "1d51972fa2e85c65c1db95231c84d3e224a9648baa89d292637675153a7ffd54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d51972fa2e85c65c1db95231c84d3e224a9648baa89d292637675153a7ffd54", kill_on_drop: false }`
[INFO] [stdout] 1d51972fa2e85c65c1db95231c84d3e224a9648baa89d292637675153a7ffd54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b725ef12368b18d26427d822766a8d8e15e7cf906b11847c2be59718e81c732
[INFO] running `Command { std: "docker" "start" "-a" "9b725ef12368b18d26427d822766a8d8e15e7cf906b11847c2be59718e81c732", kill_on_drop: false }`
[INFO] [stdout] warning: field `cause` is never read
[INFO] [stdout]   --> src/model/mod.rs:22:26
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct StringError { cause:String }
[INFO] [stdout]    |            -----------   ^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `StringError` has derived impls for the traits `Debug` and `Clone`, but these are 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]    Compiling plykit v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `cause` is never read
[INFO] [stdout]   --> src/model/mod.rs:22:26
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct StringError { cause:String }
[INFO] [stdout]    |            -----------   ^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `StringError` has derived impls for the traits `Debug` and `Clone`, but these are 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 0.70s
[INFO] running `Command { std: "docker" "inspect" "9b725ef12368b18d26427d822766a8d8e15e7cf906b11847c2be59718e81c732", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b725ef12368b18d26427d822766a8d8e15e7cf906b11847c2be59718e81c732", kill_on_drop: false }`
[INFO] [stdout] 9b725ef12368b18d26427d822766a8d8e15e7cf906b11847c2be59718e81c732
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] acc85f14b6f37d74db072340f580043c0b3d3b4401720cc65f7832a59df2c34f
[INFO] running `Command { std: "docker" "start" "-a" "acc85f14b6f37d74db072340f580043c0b3d3b4401720cc65f7832a59df2c34f", kill_on_drop: false }`
[INFO] [stderr] warning: field `cause` is never read
[INFO] [stderr]   --> src/model/mod.rs:22:26
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub struct StringError { cause:String }
[INFO] [stderr]    |            -----------   ^^^^^
[INFO] [stderr]    |            |
[INFO] [stderr]    |            field in this struct
[INFO] [stderr]    |
[INFO] [stderr]    = note: `StringError` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `plykit` (lib) generated 1 warning
[INFO] [stderr] warning: `plykit` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/plykit-a29a7a81ec40b5e9)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests plykit
[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" "acc85f14b6f37d74db072340f580043c0b3d3b4401720cc65f7832a59df2c34f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acc85f14b6f37d74db072340f580043c0b3d3b4401720cc65f7832a59df2c34f", kill_on_drop: false }`
[INFO] [stdout] acc85f14b6f37d74db072340f580043c0b3d3b4401720cc65f7832a59df2c34f