[INFO] fetching crate indextree 4.3.1...
[INFO] testing indextree-4.3.1 against try#ddc023471205c186b40f4bf8ffb598008dbf4885 for pr-87041-1
[INFO] extracting crate indextree 4.3.1 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate indextree 4.3.1 on toolchain ddc023471205c186b40f4bf8ffb598008dbf4885
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddc023471205c186b40f4bf8ffb598008dbf4885" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate indextree 4.3.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate indextree 4.3.1
[INFO] tweaked toml for crates.io crate indextree 4.3.1 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate crates.io crate indextree 4.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddc023471205c186b40f4bf8ffb598008dbf4885" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.115
[INFO] [stderr]   Downloaded memoffset v0.5.5
[INFO] [stderr]   Downloaded either v1.6.0
[INFO] [stderr]   Downloaded rayon v1.4.0
[INFO] [stderr]   Downloaded serde v1.0.115
[INFO] [stderr]   Downloaded rayon-core v1.8.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.20
[INFO] [stderr]   Downloaded libc v0.2.76
[INFO] [stderr]   Downloaded syn v1.0.39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+ddc023471205c186b40f4bf8ffb598008dbf4885" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49d4a695fed7090a99e7e916c659300c8d6e5eaa905dbf00f09ce33da6e4e3ac
[INFO] running `Command { std: "docker" "start" "-a" "49d4a695fed7090a99e7e916c659300c8d6e5eaa905dbf00f09ce33da6e4e3ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49d4a695fed7090a99e7e916c659300c8d6e5eaa905dbf00f09ce33da6e4e3ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49d4a695fed7090a99e7e916c659300c8d6e5eaa905dbf00f09ce33da6e4e3ac", kill_on_drop: false }`
[INFO] [stdout] 49d4a695fed7090a99e7e916c659300c8d6e5eaa905dbf00f09ce33da6e4e3ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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=forbid" "-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:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+ddc023471205c186b40f4bf8ffb598008dbf4885" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46b2d29f3f129d9eda3471a92c09778f3c1f389a74af7520f6953c559fa554a7
[INFO] running `Command { std: "docker" "start" "-a" "46b2d29f3f129d9eda3471a92c09778f3c1f389a74af7520f6953c559fa554a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling indextree v4.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "46b2d29f3f129d9eda3471a92c09778f3c1f389a74af7520f6953c559fa554a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46b2d29f3f129d9eda3471a92c09778f3c1f389a74af7520f6953c559fa554a7", kill_on_drop: false }`
[INFO] [stdout] 46b2d29f3f129d9eda3471a92c09778f3c1f389a74af7520f6953c559fa554a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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=forbid" "-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:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+ddc023471205c186b40f4bf8ffb598008dbf4885" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57805423712d135e0eb17f74001312fa47253f327f44c6c026788b72b1e6df59
[INFO] running `Command { std: "docker" "start" "-a" "57805423712d135e0eb17f74001312fa47253f327f44c6c026788b72b1e6df59", kill_on_drop: false }`
[INFO] [stderr]    Compiling indextree v4.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tests/lib.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "57805423712d135e0eb17f74001312fa47253f327f44c6c026788b72b1e6df59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57805423712d135e0eb17f74001312fa47253f327f44c6c026788b72b1e6df59", kill_on_drop: false }`
[INFO] [stdout] 57805423712d135e0eb17f74001312fa47253f327f44c6c026788b72b1e6df59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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=forbid" "-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:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+ddc023471205c186b40f4bf8ffb598008dbf4885" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c3eee4af74b80386aef4f69b1b884f5a2fef1ec7a1e608d073ffd7bce9cf2dc9
[INFO] running `Command { std: "docker" "start" "-a" "c3eee4af74b80386aef4f69b1b884f5a2fef1ec7a1e608d073ffd7bce9cf2dc9", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> tests/lib.rs:14:6
[INFO] [stderr]    |
[INFO] [stderr] 14 |     };
[INFO] [stderr]    |      ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `indextree` (test "lib") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/indextree-7e63d80f5ca13206)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test arena::reuse_node ... 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]      Running tests/insert-error.rs (/opt/rustwide/target/debug/deps/insert_error-21ba3fe63cb165fe)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test append_self ... ok
[INFO] [stdout] test insert_after_self ... ok
[INFO] [stdout] test insert_before_self ... ok
[INFO] [stdout] test prepend_self ... 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] [stderr]      Running tests/lib.rs (/opt/rustwide/target/debug/deps/lib-d4c78fe7199d53d2)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test first_prepend ... ok
[INFO] [stdout] test get ... ok
[INFO] [stdout] test get_mut ... ok
[INFO] [stdout] test insert_removed_node ... ok
[INFO] [stdout] test is_removed ... ok
[INFO] [stdout] test iter ... ok
[INFO] [stdout] test retrieve_node_id ... ok
[INFO] [stdout] test remove ... ok
[INFO] [stdout] test success_create ... ok
[INFO] [stdout] test success_detach ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/remove.rs (/opt/rustwide/target/debug/deps/remove-b7e35ce9e8867d3d)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test first_child_with_no_children ... ok
[INFO] [stdout] test last_child_with_no_children ... ok
[INFO] [stdout] test middle_child_with_multiple_children ... ok
[INFO] [stdout] test middle_child_with_no_children ... ok
[INFO] [stdout] test middle_child_with_single_child ... ok
[INFO] [stdout] test single_child_with_no_children ... ok
[INFO] [stdout] test toplevel_with_multiple_children ... ok
[INFO] [stdout] test single_child_with_single_child ... ok
[INFO] [stdout] test toplevel_with_no_child ... ok
[INFO] [stderr]    Doc-tests indextree
[INFO] [stdout] test toplevel_with_single_child ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 37 tests
[INFO] [stdout] test src/arena.rs - arena::Arena<T>::iter (line 192) ... ok
[INFO] [stdout] test src/arena.rs - arena::Arena<T>::new_node (line 72) ... ok
[INFO] [stdout] test src/arena.rs - arena::Arena<T>::get_mut (line 172) ... ok
[INFO] [stdout] test src/arena.rs - arena::Arena<T>::get (line 139) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::checked_prepend (line 658) ... ok
[INFO] [stdout] test src/arena.rs - arena::Arena<T>::get (line 149) ... ok
[INFO] [stdout] test src/arena.rs - arena::Arena<T>::is_empty (line 118) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::checked_insert_before (line 853) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::checked_append (line 568) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::next_sibling (line 228) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::following_siblings (line 189) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::next_sibling (line 252) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::previous_sibling (line 174) ... ok
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::reverse_children (line 259) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::remove (line 902) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::remove_subtree (line 980) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::checked_insert_after (line 753) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::first_child (line 117) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::children (line 224) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::detach (line 455) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::ancestors (line 107) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::preceding_siblings (line 150) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::insert_after (line 702) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::parent (line 89) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::append (line 523) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::insert_before (line 802) ... ok
[INFO] [stdout] test src/arena.rs - arena::Arena<T>::count (line 100) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::is_removed (line 281) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::descendants (line 299) ... ok
[INFO] [stdout] test src/arena.rs - arena::Arena<T>::iter (line 204) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::last_child (line 145) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::reverse_traverse (line 388) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::prepend (line 613) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::traverse (line 344) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::reverse_traverse (line 422) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::previous_sibling (line 198) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 37 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.65s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c3eee4af74b80386aef4f69b1b884f5a2fef1ec7a1e608d073ffd7bce9cf2dc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3eee4af74b80386aef4f69b1b884f5a2fef1ec7a1e608d073ffd7bce9cf2dc9", kill_on_drop: false }`
[INFO] [stdout] c3eee4af74b80386aef4f69b1b884f5a2fef1ec7a1e608d073ffd7bce9cf2dc9