[INFO] fetching crate tree-iter 0.6.0...
[INFO] testing tree-iter-0.6.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate tree-iter 0.6.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate tree-iter 0.6.0
[INFO] finished tweaking crates.io crate tree-iter 0.6.0
[INFO] tweaked toml for crates.io crate tree-iter 0.6.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tree-iter 0.6.0 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] crate crates.io crate tree-iter 0.6.0 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-2025-10-28" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0530cbd7564aa2cae0945c6fbbb8d5629f416328b15290764a1c502b589f7895
[INFO] running `Command { std: "docker" "start" "-a" "0530cbd7564aa2cae0945c6fbbb8d5629f416328b15290764a1c502b589f7895", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0530cbd7564aa2cae0945c6fbbb8d5629f416328b15290764a1c502b589f7895", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0530cbd7564aa2cae0945c6fbbb8d5629f416328b15290764a1c502b589f7895", kill_on_drop: false }`
[INFO] [stdout] 0530cbd7564aa2cae0945c6fbbb8d5629f416328b15290764a1c502b589f7895
[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=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] 793de8f39888d945987b8d89fa5a5a4d7a649d8d18613f193b423bbc0f8f50f6
[INFO] running `Command { std: "docker" "start" "-a" "793de8f39888d945987b8d89fa5a5a4d7a649d8d18613f193b423bbc0f8f50f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling tree-iter v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "793de8f39888d945987b8d89fa5a5a4d7a649d8d18613f193b423bbc0f8f50f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "793de8f39888d945987b8d89fa5a5a4d7a649d8d18613f193b423bbc0f8f50f6", kill_on_drop: false }`
[INFO] [stdout] 793de8f39888d945987b8d89fa5a5a4d7a649d8d18613f193b423bbc0f8f50f6
[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=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] 29fd558cded02b44550dcc8ac87eecb8688e3f3e007cf6d785314b91f4e2f843
[INFO] running `Command { std: "docker" "start" "-a" "29fd558cded02b44550dcc8ac87eecb8688e3f3e007cf6d785314b91f4e2f843", kill_on_drop: false }`
[INFO] [stderr]    Compiling tree-iter v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "29fd558cded02b44550dcc8ac87eecb8688e3f3e007cf6d785314b91f4e2f843", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29fd558cded02b44550dcc8ac87eecb8688e3f3e007cf6d785314b91f4e2f843", kill_on_drop: false }`
[INFO] [stdout] 29fd558cded02b44550dcc8ac87eecb8688e3f3e007cf6d785314b91f4e2f843
[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=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] 4dcec5cdf44d9caf2a030b5058a3feaa0b0664615d56c9a1540c52257fbb080b
[INFO] running `Command { std: "docker" "start" "-a" "4dcec5cdf44d9caf2a030b5058a3feaa0b0664615d56c9a1540c52257fbb080b", kill_on_drop: false }`
[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_iter-439bf9eda41b43fb)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tree::tests::test_breadth_first_traversal ... ok
[INFO] [stdout] test tree::tests::test_mutable_breadth_first_traversal ... ok
[INFO] [stdout] test tree::tests::test_forest_traversal ... ok
[INFO] [stdout] test tree::tests::test_mutable_depth_first_traversal ... ok
[INFO] [stdout] test tree::tests::test_tree_modification ... ok
[INFO] [stdout] test tree::tests::test_complex_tree_traversal ... ok
[INFO] [stdout] test tree::tests::test_depth_first_traversal ... ok
[INFO] [stdout] test tree::tests::test_empty_tree ... 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]    Doc-tests tree_iter
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/iter.rs - iter::TreeNode (line 13) ... ok
[INFO] [stdout] test src/iter_mut.rs - iter_mut::TreeNodeMut (line 20) ... ok
[INFO] [stdout] test src/lib.rs - (line 18) ... ok
[INFO] [stdout] test src/tree.rs - tree::Node (line 15) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.71s; merged doctests compilation took 0.70s
[INFO] running `Command { std: "docker" "inspect" "4dcec5cdf44d9caf2a030b5058a3feaa0b0664615d56c9a1540c52257fbb080b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dcec5cdf44d9caf2a030b5058a3feaa0b0664615d56c9a1540c52257fbb080b", kill_on_drop: false }`
[INFO] [stdout] 4dcec5cdf44d9caf2a030b5058a3feaa0b0664615d56c9a1540c52257fbb080b