[INFO] fetching crate indextree 4.3.1...
[INFO] testing indextree-4.3.1 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate indextree 4.3.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate indextree 4.3.1 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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-5/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b0c6b25952cd94a060b083d25a383a79d14857013df532445ba82a8e37bb424
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0b0c6b25952cd94a060b083d25a383a79d14857013df532445ba82a8e37bb424", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b0c6b25952cd94a060b083d25a383a79d14857013df532445ba82a8e37bb424", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b0c6b25952cd94a060b083d25a383a79d14857013df532445ba82a8e37bb424", kill_on_drop: false }`
[INFO] [stdout] 0b0c6b25952cd94a060b083d25a383a79d14857013df532445ba82a8e37bb424
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52833104ff64c700385bd3dc7ac74ad144a54d8218b9e893b6fdf95e27ac0a56
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "52833104ff64c700385bd3dc7ac74ad144a54d8218b9e893b6fdf95e27ac0a56", kill_on_drop: false }`
[INFO] [stderr]    Compiling indextree v4.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "52833104ff64c700385bd3dc7ac74ad144a54d8218b9e893b6fdf95e27ac0a56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52833104ff64c700385bd3dc7ac74ad144a54d8218b9e893b6fdf95e27ac0a56", kill_on_drop: false }`
[INFO] [stdout] 52833104ff64c700385bd3dc7ac74ad144a54d8218b9e893b6fdf95e27ac0a56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2842bbf1d1f97df723c3f66511c7145e4fc67b26aca9ff9b36fbb67e57c2bd4c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2842bbf1d1f97df723c3f66511c7145e4fc67b26aca9ff9b36fbb67e57c2bd4c", 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 2.41s
[INFO] running `Command { std: "docker" "inspect" "2842bbf1d1f97df723c3f66511c7145e4fc67b26aca9ff9b36fbb67e57c2bd4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2842bbf1d1f97df723c3f66511c7145e4fc67b26aca9ff9b36fbb67e57c2bd4c", kill_on_drop: false }`
[INFO] [stdout] 2842bbf1d1f97df723c3f66511c7145e4fc67b26aca9ff9b36fbb67e57c2bd4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 43e80df39385f4b94870d6e2f87e23d2f10422ffb73108993ea2b01deacbd830
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "43e80df39385f4b94870d6e2f87e23d2f10422ffb73108993ea2b01deacbd830", 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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/indextree-fa80e93139abd354)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/insert-error.rs (/opt/rustwide/target/debug/deps/insert_error-da3b8fe71e6b5e84)
[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] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test insert_after_self ... ok
[INFO] [stdout] test insert_before_self ... ok
[INFO] [stdout] test append_self ... ok
[INFO] [stderr]      Running tests/lib.rs (/opt/rustwide/target/debug/deps/lib-2f510094985a4d14)
[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 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test first_prepend ... ok
[INFO] [stdout] test retrieve_node_id ... ok
[INFO] [stdout] test insert_removed_node ... ok
[INFO] [stdout] test success_create ... ok
[INFO] [stdout] test get ... ok
[INFO] [stdout] test get_mut ... ok
[INFO] [stdout] test success_detach ... ok
[INFO] [stdout] test iter ... ok
[INFO] [stdout] test is_removed ... ok
[INFO] [stdout] test remove ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/remove.rs (/opt/rustwide/target/debug/deps/remove-314e005049f9b553)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test toplevel_with_multiple_children ... ok
[INFO] [stdout] test middle_child_with_no_children ... ok
[INFO] [stdout] test first_child_with_no_children ... ok
[INFO] [stdout] test middle_child_with_single_child ... ok
[INFO] [stdout] test middle_child_with_multiple_children ... ok
[INFO] [stdout] test toplevel_with_no_child ... ok
[INFO] [stdout] test single_child_with_single_child ... ok
[INFO] [stdout] test single_child_with_no_children ... ok
[INFO] [stderr]    Doc-tests indextree
[INFO] [stdout] test last_child_with_no_children ... ok
[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 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 37 tests
[INFO] [stdout] test src/id.rs - id::NodeId::checked_append (line 568) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::descendants (line 299) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::last_child (line 145) ... ok
[INFO] [stdout] test src/arena.rs - arena::Arena<T>::get (line 139) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::ancestors (line 107) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::checked_insert_before (line 853) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::checked_insert_after (line 753) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::prepend (line 613) ... ok
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name indextree --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern indextree=/opt/rustwide/target/debug/deps/libindextree-b75377ad99fef5c7.rlib -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="std"' --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "43e80df39385f4b94870d6e2f87e23d2f10422ffb73108993ea2b01deacbd830", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43e80df39385f4b94870d6e2f87e23d2f10422ffb73108993ea2b01deacbd830", kill_on_drop: false }`
[INFO] [stdout] 43e80df39385f4b94870d6e2f87e23d2f10422ffb73108993ea2b01deacbd830