[INFO] fetching crate wacky_traits 2.0.0...
[INFO] testing wacky_traits-2.0.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate wacky_traits 2.0.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate wacky_traits 2.0.0
[INFO] finished tweaking crates.io crate wacky_traits 2.0.0
[INFO] tweaked toml for crates.io crate wacky_traits 2.0.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wacky_traits 2.0.0 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] 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] be19855c4d1975a64b9fafac22c302dbcf619716e2eb91f8788993d954cac468
[INFO] running `Command { std: "docker" "start" "-a" "be19855c4d1975a64b9fafac22c302dbcf619716e2eb91f8788993d954cac468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be19855c4d1975a64b9fafac22c302dbcf619716e2eb91f8788993d954cac468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be19855c4d1975a64b9fafac22c302dbcf619716e2eb91f8788993d954cac468", kill_on_drop: false }`
[INFO] [stdout] be19855c4d1975a64b9fafac22c302dbcf619716e2eb91f8788993d954cac468
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 4204d923ab6a8426bc66a72b9390e4b3f2f9dbe331133a841e8210f51f4bc855
[INFO] running `Command { std: "docker" "start" "-a" "4204d923ab6a8426bc66a72b9390e4b3f2f9dbe331133a841e8210f51f4bc855", kill_on_drop: false }`
[INFO] [stderr]    Compiling wacky_traits v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Collector` is never used
[INFO] [stdout]  --> src/in_out/collector.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait Collector<Input,Next>:Mapper<Input>{
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Collectable` is never used
[INFO] [stdout]   --> src/in_out/collector.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub trait Collectable<TCollector> {
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FnCollector` is never constructed
[INFO] [stdout]  --> src/in_out/collectors.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct FnCollector<TFn>(pub TFn);
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FnMutCollector` is never constructed
[INFO] [stdout]   --> src/in_out/collectors.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct FnMutCollector<TFn>(pub TFn);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MapperCollector` is never constructed
[INFO] [stdout]   --> src/in_out/collectors.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub struct MapperCollector<TMapper,TCollector>(pub TMapper,pub TCollector);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Mapper` is never used
[INFO] [stdout]  --> src/in_out/mapper.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub trait Mapper<Input>{
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AsSelf` is never constructed
[INFO] [stdout]  --> src/in_out/mappers.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct AsSelf;
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MapperMapper` is never constructed
[INFO] [stdout]   --> src/in_out/mappers.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct MapperMapper<TMapperA,TMapperB>(pub TMapperA,pub TMapperB);
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "4204d923ab6a8426bc66a72b9390e4b3f2f9dbe331133a841e8210f51f4bc855", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4204d923ab6a8426bc66a72b9390e4b3f2f9dbe331133a841e8210f51f4bc855", kill_on_drop: false }`
[INFO] [stdout] 4204d923ab6a8426bc66a72b9390e4b3f2f9dbe331133a841e8210f51f4bc855
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d9815e1ddd67757707efdd14f0bdc200a2dc50351969093ad412fcd91a670f3b
[INFO] running `Command { std: "docker" "start" "-a" "d9815e1ddd67757707efdd14f0bdc200a2dc50351969093ad412fcd91a670f3b", kill_on_drop: false }`
[INFO] [stdout] warning: trait `Collector` is never used
[INFO] [stdout]  --> src/in_out/collector.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait Collector<Input,Next>:Mapper<Input>{
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Collectable` is never used
[INFO] [stdout]   --> src/in_out/collector.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub trait Collectable<TCollector> {
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FnCollector` is never constructed
[INFO] [stdout]  --> src/in_out/collectors.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct FnCollector<TFn>(pub TFn);
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FnMutCollector` is never constructed
[INFO] [stdout]   --> src/in_out/collectors.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct FnMutCollector<TFn>(pub TFn);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MapperCollector` is never constructed
[INFO] [stdout]   --> src/in_out/collectors.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub struct MapperCollector<TMapper,TCollector>(pub TMapper,pub TCollector);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Mapper` is never used
[INFO] [stdout]  --> src/in_out/mapper.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub trait Mapper<Input>{
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AsSelf` is never constructed
[INFO] [stdout]  --> src/in_out/mappers.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct AsSelf;
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MapperMapper` is never constructed
[INFO] [stdout]   --> src/in_out/mappers.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct MapperMapper<TMapperA,TMapperB>(pub TMapperA,pub TMapperB);
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling wacky_traits v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Collector` is never used
[INFO] [stdout]  --> src/in_out/collector.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait Collector<Input,Next>:Mapper<Input>{
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Collectable` is never used
[INFO] [stdout]   --> src/in_out/collector.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub trait Collectable<TCollector> {
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FnCollector` is never constructed
[INFO] [stdout]  --> src/in_out/collectors.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct FnCollector<TFn>(pub TFn);
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FnMutCollector` is never constructed
[INFO] [stdout]   --> src/in_out/collectors.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct FnMutCollector<TFn>(pub TFn);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MapperCollector` is never constructed
[INFO] [stdout]   --> src/in_out/collectors.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub struct MapperCollector<TMapper,TCollector>(pub TMapper,pub TCollector);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Mapper` is never used
[INFO] [stdout]  --> src/in_out/mapper.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub trait Mapper<Input>{
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AsSelf` is never constructed
[INFO] [stdout]  --> src/in_out/mappers.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct AsSelf;
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MapperMapper` is never constructed
[INFO] [stdout]   --> src/in_out/mappers.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct MapperMapper<TMapperA,TMapperB>(pub TMapperA,pub TMapperB);
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "d9815e1ddd67757707efdd14f0bdc200a2dc50351969093ad412fcd91a670f3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9815e1ddd67757707efdd14f0bdc200a2dc50351969093ad412fcd91a670f3b", kill_on_drop: false }`
[INFO] [stdout] d9815e1ddd67757707efdd14f0bdc200a2dc50351969093ad412fcd91a670f3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e6aa291489e9b3b7c31f3c3f2b2ecfa678436837c34065933a23b64086c83258
[INFO] running `Command { std: "docker" "start" "-a" "e6aa291489e9b3b7c31f3c3f2b2ecfa678436837c34065933a23b64086c83258", kill_on_drop: false }`
[INFO] [stderr] warning: trait `Collector` is never used
[INFO] [stderr]  --> src/in_out/collector.rs:5:11
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub trait Collector<Input,Next>:Mapper<Input>{
[INFO] [stderr]   |           ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Collectable` is never used
[INFO] [stderr]   --> src/in_out/collector.rs:13:11
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub trait Collectable<TCollector> {
[INFO] [stderr]    |           ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FnCollector` is never constructed
[INFO] [stderr]  --> src/in_out/collectors.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct FnCollector<TFn>(pub TFn);
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FnMutCollector` is never constructed
[INFO] [stderr]   --> src/in_out/collectors.rs:27:12
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub struct FnMutCollector<TFn>(pub TFn);
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `MapperCollector` is never constructed
[INFO] [stderr]   --> src/in_out/collectors.rs:67:12
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub struct MapperCollector<TMapper,TCollector>(pub TMapper,pub TCollector);
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Mapper` is never used
[INFO] [stderr]  --> src/in_out/mapper.rs:8:11
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub trait Mapper<Input>{
[INFO] [stderr]   |           ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `AsSelf` is never constructed
[INFO] [stderr]  --> src/in_out/mappers.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct AsSelf;
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `MapperMapper` is never constructed
[INFO] [stderr]   --> src/in_out/mappers.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct MapperMapper<TMapperA,TMapperB>(pub TMapperA,pub TMapperB);
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `wacky_traits` (lib) generated 8 warnings
[INFO] [stderr] warning: `wacky_traits` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/wacky_traits-d34f3aab0d88b771)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests wacky_traits
[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] [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" "e6aa291489e9b3b7c31f3c3f2b2ecfa678436837c34065933a23b64086c83258", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6aa291489e9b3b7c31f3c3f2b2ecfa678436837c34065933a23b64086c83258", kill_on_drop: false }`
[INFO] [stdout] e6aa291489e9b3b7c31f3c3f2b2ecfa678436837c34065933a23b64086c83258