[INFO] fetching crate tree-layout 0.0.2...
[INFO] testing tree-layout-0.0.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate tree-layout 0.0.2 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate tree-layout 0.0.2
[INFO] finished tweaking crates.io crate tree-layout 0.0.2
[INFO] tweaked toml for crates.io crate tree-layout 0.0.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tree-layout 0.0.2 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] crate crates.io crate tree-layout 0.0.2 already has a lockfile, it will not be regenerated
[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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 184d44513c147462dedef9a4e4e30e0847d60779a49aa997a33de9491a12508c
[INFO] running `Command { std: "docker" "start" "-a" "184d44513c147462dedef9a4e4e30e0847d60779a49aa997a33de9491a12508c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "184d44513c147462dedef9a4e4e30e0847d60779a49aa997a33de9491a12508c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "184d44513c147462dedef9a4e4e30e0847d60779a49aa997a33de9491a12508c", kill_on_drop: false }`
[INFO] [stdout] 184d44513c147462dedef9a4e4e30e0847d60779a49aa997a33de9491a12508c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] d7d5f9a2470f27ed5cd17702cc5c3627d0e9a4e82d208ade3e2d16e9550af148
[INFO] running `Command { std: "docker" "start" "-a" "d7d5f9a2470f27ed5cd17702cc5c3627d0e9a4e82d208ade3e2d16e9550af148", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling distantia v0.0.0
[INFO] [stderr]    Compiling color-core v0.1.6
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling hashbrown v0.14.2
[INFO] [stderr]    Compiling projective v0.3.0
[INFO] [stderr]    Compiling shape-core v0.1.16
[INFO] [stderr]    Compiling tree-layout v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.40s
[INFO] running `Command { std: "docker" "inspect" "d7d5f9a2470f27ed5cd17702cc5c3627d0e9a4e82d208ade3e2d16e9550af148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7d5f9a2470f27ed5cd17702cc5c3627d0e9a4e82d208ade3e2d16e9550af148", kill_on_drop: false }`
[INFO] [stdout] d7d5f9a2470f27ed5cd17702cc5c3627d0e9a4e82d208ade3e2d16e9550af148
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c542662c4f00a244bbc4a0a841b141f129453d60d569c42630ea109ecccad504
[INFO] running `Command { std: "docker" "start" "-a" "c542662c4f00a244bbc4a0a841b141f129453d60d569c42630ea109ecccad504", kill_on_drop: false }`
[INFO] [stderr]    Compiling hashbrown v0.14.2
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling indexmap v2.0.2
[INFO] [stderr]    Compiling tree-layout v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling petgraph v0.6.4
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> examples/binary.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let layout = layout(&Tree, &node);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.93s
[INFO] running `Command { std: "docker" "inspect" "c542662c4f00a244bbc4a0a841b141f129453d60d569c42630ea109ecccad504", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c542662c4f00a244bbc4a0a841b141f129453d60d569c42630ea109ecccad504", kill_on_drop: false }`
[INFO] [stdout] c542662c4f00a244bbc4a0a841b141f129453d60d569c42630ea109ecccad504
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] b776bc28c56d17a2806b47cd8616e29404c713de885727b0551acaad2a3bce2c
[INFO] running `Command { std: "docker" "start" "-a" "b776bc28c56d17a2806b47cd8616e29404c713de885727b0551acaad2a3bce2c", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `layout`
[INFO] [stderr]   --> examples/binary.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let layout = layout(&Tree, &node);
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tree-layout` (example "binary") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tree_layout-10948f1509d33b30)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tree::test::is_leaf_false ... ok
[INFO] [stdout] test tree::test::is_root_false ... ok
[INFO] [stdout] test tree::test::is_leaf_true ... ok
[INFO] [stdout] test tree::test::new ... ok
[INFO] [stdout] test tree::test::root ... ok
[INFO] [stdout] test tree::test::is_root_true ... ok
[INFO] [stdout] test tree::test::post_order ... ok
[INFO] [stdout] test tree::test::breadth_first ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-354d258bd46629ef)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test petgraph ... ok
[INFO] [stdout] test ptc ... ok
[INFO] [stderr]    Doc-tests tree_layout
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 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" "b776bc28c56d17a2806b47cd8616e29404c713de885727b0551acaad2a3bce2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b776bc28c56d17a2806b47cd8616e29404c713de885727b0551acaad2a3bce2c", kill_on_drop: false }`
[INFO] [stdout] b776bc28c56d17a2806b47cd8616e29404c713de885727b0551acaad2a3bce2c