[INFO] fetching crate flat-tree 6.0.0...
[INFO] testing flat-tree-6.0.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate flat-tree 6.0.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate flat-tree 6.0.0
[INFO] finished tweaking crates.io crate flat-tree 6.0.0
[INFO] tweaked toml for crates.io crate flat-tree 6.0.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate flat-tree 6.0.0 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] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 64 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.7.0)
[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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c20ad464fa16fa4d6ad455e39c87ff86284367ef061c48bce461b0e9a8e9abad
[INFO] running `Command { std: "docker" "start" "-a" "c20ad464fa16fa4d6ad455e39c87ff86284367ef061c48bce461b0e9a8e9abad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c20ad464fa16fa4d6ad455e39c87ff86284367ef061c48bce461b0e9a8e9abad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c20ad464fa16fa4d6ad455e39c87ff86284367ef061c48bce461b0e9a8e9abad", kill_on_drop: false }`
[INFO] [stdout] c20ad464fa16fa4d6ad455e39c87ff86284367ef061c48bce461b0e9a8e9abad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 4df660e626a922932e60847ce20d04c245a0c5009f1aae30deea4e54f7bb21e1
[INFO] running `Command { std: "docker" "start" "-a" "4df660e626a922932e60847ce20d04c245a0c5009f1aae30deea4e54f7bb21e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling flat-tree v6.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "4df660e626a922932e60847ce20d04c245a0c5009f1aae30deea4e54f7bb21e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4df660e626a922932e60847ce20d04c245a0c5009f1aae30deea4e54f7bb21e1", kill_on_drop: false }`
[INFO] [stdout] 4df660e626a922932e60847ce20d04c245a0c5009f1aae30deea4e54f7bb21e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 94231f1304fe27b269a20189742ec1f3363dd35501ac8149da3c5590cd035a7a
[INFO] running `Command { std: "docker" "start" "-a" "94231f1304fe27b269a20189742ec1f3363dd35501ac8149da3c5590cd035a7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling half v1.8.3
[INFO] [stderr]    Compiling criterion-plot v0.4.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling csv v1.3.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stderr]    Compiling flat-tree v6.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 10.64s
[INFO] running `Command { std: "docker" "inspect" "94231f1304fe27b269a20189742ec1f3363dd35501ac8149da3c5590cd035a7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94231f1304fe27b269a20189742ec1f3363dd35501ac8149da3c5590cd035a7a", kill_on_drop: false }`
[INFO] [stdout] 94231f1304fe27b269a20189742ec1f3363dd35501ac8149da3c5590cd035a7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 321aea0c47146d1dcec4f8792b536c66fcdf8b00898772285653e7efd96f6069
[INFO] running `Command { std: "docker" "start" "-a" "321aea0c47146d1dcec4f8792b536c66fcdf8b00898772285653e7efd96f6069", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/flat_tree-4cbbff8c5c0059ce)
[INFO] [stdout] test tests::test_child_to_parent_to_child ... ok
[INFO] [stdout] test tests::test_parent_gt_int32 ... ok
[INFO] [stdout] test tests::test_is_even ... ok
[INFO] [stdout] test iterator::tests::test_two_pow ... ok
[INFO] [stdout] test tests::test_is_odd ... ok
[INFO] [stderr]      Running tests/iterator.rs (/opt/rustwide/target/debug/deps/iterator-738322fb5338b23f)
[INFO] [stdout] test iterator::tests::test_two_pow_64bit ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test iterator ... ok
[INFO] [stdout] test non_leaf_start ... ok
[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] [stderr]      Running tests/iterator_regression.rs (/opt/rustwide/target/debug/deps/iterator_regression-7740186ddd65770b)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test parent_and_odd_offset ... 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 flat_tree
[INFO] [stdout] 
[INFO] [stdout] running 33 tests
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::new (line 25) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::count_nodes (line 154) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::contains (line 110) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::next_tree (line 323) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::prev_tree (line 341) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::right_child (line 303) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::left_child (line 284) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::is_left (line 84) ... ok
[INFO] [stdout] test src/iterator.rs - iterator (line 2) ... ok
[INFO] [stdout] test src/lib.rs - children (line 164) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::prev (line 191) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::sibling (line 210) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::seek (line 62) ... ok
[INFO] [stdout] test src/lib.rs - count (line 282) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::is_right (line 97) ... ok
[INFO] [stdout] test src/lib.rs - count_leaves (line 301) ... ok
[INFO] [stdout] test src/lib.rs - depth (line 82) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::parent (line 227) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::left_span (line 248) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::count_leaves (line 174) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::full_root (line 375) ... ok
[INFO] [stdout] test src/lib.rs - offset (line 98) ... ok
[INFO] [stdout] test src/lib.rs - parent (line 118) ... ok
[INFO] [stdout] test src/iterator.rs - iterator::Iterator::right_span (line 266) ... ok
[INFO] [stdout] test src/lib.rs - left_span (line 247) ... ok
[INFO] [stdout] test src/lib.rs - right_child (line 206) ... ok
[INFO] [stdout] test src/lib.rs - uncle (line 149) ... ok
[INFO] [stdout] test src/lib.rs - index (line 63) ... ok
[INFO] [stdout] test src/lib.rs - full_roots (line 326) ... ok
[INFO] [stdout] test src/lib.rs - right_span (line 227) ... ok
[INFO] [stdout] test src/lib.rs - spans (line 267) ... ok
[INFO] [stdout] test src/lib.rs - left_child (line 186) ... ok
[INFO] [stdout] test src/lib.rs - sibling (line 134) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 33 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.18s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "321aea0c47146d1dcec4f8792b536c66fcdf8b00898772285653e7efd96f6069", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "321aea0c47146d1dcec4f8792b536c66fcdf8b00898772285653e7efd96f6069", kill_on_drop: false }`
[INFO] [stdout] 321aea0c47146d1dcec4f8792b536c66fcdf8b00898772285653e7efd96f6069