[INFO] fetching crate indextree 4.3.1...
[INFO] testing indextree-4.3.1 against 1.59.0 for beta-1.60-1
[INFO] extracting crate indextree 4.3.1 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate indextree 4.3.1 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-19/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" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12fe347fa54a081c5f930a2f1e549821a751f1343b619ec6ffd423389ed65721
[INFO] running `Command { std: "docker" "start" "-a" "12fe347fa54a081c5f930a2f1e549821a751f1343b619ec6ffd423389ed65721", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12fe347fa54a081c5f930a2f1e549821a751f1343b619ec6ffd423389ed65721", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12fe347fa54a081c5f930a2f1e549821a751f1343b619ec6ffd423389ed65721", kill_on_drop: false }`
[INFO] [stdout] 12fe347fa54a081c5f930a2f1e549821a751f1343b619ec6ffd423389ed65721
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b6863aed05138ec27f3a1aff7b792665c2fed9b23ca56de0c90e63d90806b2b
[INFO] running `Command { std: "docker" "start" "-a" "6b6863aed05138ec27f3a1aff7b792665c2fed9b23ca56de0c90e63d90806b2b", kill_on_drop: false }`
[INFO] [stderr]    Compiling indextree v4.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "6b6863aed05138ec27f3a1aff7b792665c2fed9b23ca56de0c90e63d90806b2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b6863aed05138ec27f3a1aff7b792665c2fed9b23ca56de0c90e63d90806b2b", kill_on_drop: false }`
[INFO] [stdout] 6b6863aed05138ec27f3a1aff7b792665c2fed9b23ca56de0c90e63d90806b2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b80f83708883342d4c1567c048db9e5443e582d1c4380c081efa4bbab369615a
[INFO] running `Command { std: "docker" "start" "-a" "b80f83708883342d4c1567c048db9e5443e582d1c4380c081efa4bbab369615a", 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 0.57s
[INFO] running `Command { std: "docker" "inspect" "b80f83708883342d4c1567c048db9e5443e582d1c4380c081efa4bbab369615a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b80f83708883342d4c1567c048db9e5443e582d1c4380c081efa4bbab369615a", kill_on_drop: false }`
[INFO] [stdout] b80f83708883342d4c1567c048db9e5443e582d1c4380c081efa4bbab369615a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cfde264d67a14b9a3136e2b1cb9ba1ca5df05e9f598778e55596de63c605ec0e
[INFO] running `Command { std: "docker" "start" "-a" "cfde264d67a14b9a3136e2b1cb9ba1ca5df05e9f598778e55596de63c605ec0e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/indextree-9725ccf87e94c784)
[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-b24024066c627542)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test append_self ... ok
[INFO] [stdout] test prepend_self ... ok
[INFO] [stdout] test insert_before_self ... ok
[INFO] [stdout] test insert_after_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-bbf97a9ef90ebf7b)
[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_detach ... ok
[INFO] [stdout] test success_create ... 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-b967949bcc590602)
[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 single_child_with_single_child ... ok
[INFO] [stdout] test single_child_with_no_children ... ok
[INFO] [stdout] test middle_child_with_single_child ... ok
[INFO] [stdout] test toplevel_with_multiple_children ... ok
[INFO] [stdout] test toplevel_with_no_child ... 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 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests indextree
[INFO] [stdout] 
[INFO] [stdout] running 37 tests
[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-c792ec4744c456bd.rlib -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="std"' --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "cfde264d67a14b9a3136e2b1cb9ba1ca5df05e9f598778e55596de63c605ec0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfde264d67a14b9a3136e2b1cb9ba1ca5df05e9f598778e55596de63c605ec0e", kill_on_drop: false }`
[INFO] [stdout] cfde264d67a14b9a3136e2b1cb9ba1ca5df05e9f598778e55596de63c605ec0e