[INFO] fetching crate sokoban 0.2.3...
[INFO] testing sokoban-0.2.3 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate sokoban 0.2.3 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate sokoban 0.2.3
[INFO] finished tweaking crates.io crate sokoban 0.2.3
[INFO] tweaked toml for crates.io crate sokoban 0.2.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sokoban 0.2.3 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 23 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.18)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9101bf16f07afba0c4530d3786e890c56de9834508b166220d0b0f8f58780a9
[INFO] running `Command { std: "docker" "start" "-a" "b9101bf16f07afba0c4530d3786e890c56de9834508b166220d0b0f8f58780a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9101bf16f07afba0c4530d3786e890c56de9834508b166220d0b0f8f58780a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9101bf16f07afba0c4530d3786e890c56de9834508b166220d0b0f8f58780a9", kill_on_drop: false }`
[INFO] [stdout] b9101bf16f07afba0c4530d3786e890c56de9834508b166220d0b0f8f58780a9
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 464147f319375805696fb1e8f6ff441f8bebd78384d555f2cfe72a42940f9d9c
[INFO] running `Command { std: "docker" "start" "-a" "464147f319375805696fb1e8f6ff441f8bebd78384d555f2cfe72a42940f9d9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling sokoban v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:302:17
[INFO] [stdout]     |
[INFO] [stdout] 302 |     pub fn iter(&self) -> StateIterator {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 302 |     pub fn iter(&self) -> StateIterator<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "464147f319375805696fb1e8f6ff441f8bebd78384d555f2cfe72a42940f9d9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "464147f319375805696fb1e8f6ff441f8bebd78384d555f2cfe72a42940f9d9c", kill_on_drop: false }`
[INFO] [stdout] 464147f319375805696fb1e8f6ff441f8bebd78384d555f2cfe72a42940f9d9c
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f545a1984204da62d12fce97a645ec0fb98e049a6043d7886b6db43d209be4cb
[INFO] running `Command { std: "docker" "start" "-a" "f545a1984204da62d12fce97a645ec0fb98e049a6043d7886b6db43d209be4cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libfuzzer-sys v0.4.12
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:302:17
[INFO] [stdout]     |
[INFO] [stdout] 302 |     pub fn iter(&self) -> StateIterator {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 302 |     pub fn iter(&self) -> StateIterator<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sokoban v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:302:17
[INFO] [stdout]     |
[INFO] [stdout] 302 |     pub fn iter(&self) -> StateIterator {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 302 |     pub fn iter(&self) -> StateIterator<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 28.17s
[INFO] running `Command { std: "docker" "inspect" "f545a1984204da62d12fce97a645ec0fb98e049a6043d7886b6db43d209be4cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f545a1984204da62d12fce97a645ec0fb98e049a6043d7886b6db43d209be4cb", kill_on_drop: false }`
[INFO] [stdout] f545a1984204da62d12fce97a645ec0fb98e049a6043d7886b6db43d209be4cb
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 31a8c99e5208622f62d081c46cd7d517ed7c073e43d2a52ed2e819a3a841d41c
[INFO] running `Command { std: "docker" "start" "-a" "31a8c99e5208622f62d081c46cd7d517ed7c073e43d2a52ed2e819a3a841d41c", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:302:17
[INFO] [stderr]     |
[INFO] [stderr] 302 |     pub fn iter(&self) -> StateIterator {
[INFO] [stderr]     |                 ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 302 |     pub fn iter(&self) -> StateIterator<'_> {
[INFO] [stderr]     |                                        ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `sokoban` (lib) generated 1 warning (run `cargo fix --lib -p sokoban` to apply 1 suggestion)
[INFO] [stderr] warning: `sokoban` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sokoban-4733fb02ceb90d47)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sokoban
[INFO] [stdout] running 18 tests
[INFO] [stdout] test tests::basic_invalid_crate_doesnt_work ... ok
[INFO] [stdout] test tests::basic_invalid_oob_doesnt_work ... ok
[INFO] [stdout] test tests::basic_invalid_wall_doesnt_work ... ok
[INFO] [stdout] test tests::hits_crate_and_dies ... ok
[INFO] [stdout] test tests::basic_invalid_target_oob_doesnt_work ... ok
[INFO] [stdout] test tests::basic_not_solution_state_works ... ok
[INFO] [stdout] test tests::basic_on_target_works ... ok
[INFO] [stdout] test tests::basic_solution_state_works ... ok
[INFO] [stdout] test tests::basic_works ... ok
[INFO] [stdout] test tests::hits_hole_and_dies ... ok
[INFO] [stdout] test tests::hits_wall_and_dies ... ok
[INFO] [stdout] test tests::invalid_target_wall_doesnt_work ... ok
[INFO] [stdout] test tests::move_left ... ok
[INFO] [stdout] test tests::move_right_with_box ... ok
[INFO] [stdout] test tests::move_up_right_with_box ... ok
[INFO] [stdout] test tests::pushes_crate_in_hole_and_dies ... ok
[INFO] [stdout] test tests::pushes_crate_to_target ... ok
[INFO] [stdout] test tests::valid_target_crate_does_work ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 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" "31a8c99e5208622f62d081c46cd7d517ed7c073e43d2a52ed2e819a3a841d41c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31a8c99e5208622f62d081c46cd7d517ed7c073e43d2a52ed2e819a3a841d41c", kill_on_drop: false }`
[INFO] [stdout] 31a8c99e5208622f62d081c46cd7d517ed7c073e43d2a52ed2e819a3a841d41c
