[INFO] fetching crate tree-iter 0.6.0...
[INFO] testing tree-iter-0.6.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate tree-iter 0.6.0 into /workspace/builds/worker-4-tc1/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-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tree-iter 0.6.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6675230f36542f26ab37d8eca4df4fe6c9e5a27c2a0184978ddfe81561b7bb3e
[INFO] running `Command { std: "docker" "start" "-a" "6675230f36542f26ab37d8eca4df4fe6c9e5a27c2a0184978ddfe81561b7bb3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6675230f36542f26ab37d8eca4df4fe6c9e5a27c2a0184978ddfe81561b7bb3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6675230f36542f26ab37d8eca4df4fe6c9e5a27c2a0184978ddfe81561b7bb3e", kill_on_drop: false }`
[INFO] [stdout] 6675230f36542f26ab37d8eca4df4fe6c9e5a27c2a0184978ddfe81561b7bb3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09ce868e6516ff3e30b117b3c4f142a622da25d4331f8817207d72b8a44b5283
[INFO] running `Command { std: "docker" "start" "-a" "09ce868e6516ff3e30b117b3c4f142a622da25d4331f8817207d72b8a44b5283", 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 0.15s
[INFO] running `Command { std: "docker" "inspect" "09ce868e6516ff3e30b117b3c4f142a622da25d4331f8817207d72b8a44b5283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09ce868e6516ff3e30b117b3c4f142a622da25d4331f8817207d72b8a44b5283", kill_on_drop: false }`
[INFO] [stdout] 09ce868e6516ff3e30b117b3c4f142a622da25d4331f8817207d72b8a44b5283
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 738becda094c330f248f803ce0b110739bac890a76744a41f854dee64bf999cc
[INFO] running `Command { std: "docker" "start" "-a" "738becda094c330f248f803ce0b110739bac890a76744a41f854dee64bf999cc", 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 0.58s
[INFO] running `Command { std: "docker" "inspect" "738becda094c330f248f803ce0b110739bac890a76744a41f854dee64bf999cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "738becda094c330f248f803ce0b110739bac890a76744a41f854dee64bf999cc", kill_on_drop: false }`
[INFO] [stdout] 738becda094c330f248f803ce0b110739bac890a76744a41f854dee64bf999cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 54b02d18de57d22d557f189d85cb419574e4db7169199f2834e7eefad20dbd3b
[INFO] running `Command { std: "docker" "start" "-a" "54b02d18de57d22d557f189d85cb419574e4db7169199f2834e7eefad20dbd3b", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tree_iter-d1669409d2b207ae)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tree_iter
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tree::tests::test_breadth_first_traversal ... ok
[INFO] [stdout] test tree::tests::test_depth_first_traversal ... ok
[INFO] [stdout] test tree::tests::test_complex_tree_traversal ... ok
[INFO] [stdout] test tree::tests::test_forest_traversal ... ok
[INFO] [stdout] test tree::tests::test_empty_tree ... ok
[INFO] [stdout] test tree::tests::test_mutable_breadth_first_traversal ... ok
[INFO] [stdout] test tree::tests::test_mutable_depth_first_traversal ... ok
[INFO] [stdout] test tree::tests::test_tree_modification ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/iter.rs - iter::TreeNode (line 13) ... ok
[INFO] [stdout] test src/tree.rs - tree::Node (line 15) ... 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] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "54b02d18de57d22d557f189d85cb419574e4db7169199f2834e7eefad20dbd3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54b02d18de57d22d557f189d85cb419574e4db7169199f2834e7eefad20dbd3b", kill_on_drop: false }`
[INFO] [stdout] 54b02d18de57d22d557f189d85cb419574e4db7169199f2834e7eefad20dbd3b