[INFO] fetching crate binartree 2.0.2...
[INFO] testing binartree-2.0.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate binartree 2.0.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate binartree 2.0.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate binartree 2.0.2
[INFO] finished tweaking crates.io crate binartree 2.0.2
[INFO] tweaked toml for crates.io crate binartree 2.0.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e02ab1c06c632940ea61ee44ff5c28f5933bae913de5998d6fa9d101eb323fa3
[INFO] running `Command { std: "docker" "start" "-a" "e02ab1c06c632940ea61ee44ff5c28f5933bae913de5998d6fa9d101eb323fa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e02ab1c06c632940ea61ee44ff5c28f5933bae913de5998d6fa9d101eb323fa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e02ab1c06c632940ea61ee44ff5c28f5933bae913de5998d6fa9d101eb323fa3", kill_on_drop: false }`
[INFO] [stdout] e02ab1c06c632940ea61ee44ff5c28f5933bae913de5998d6fa9d101eb323fa3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b91846e18962c4bc7277f3378c1e851e19d7d7cf4891fec5550aaf5f550c8e5c
[INFO] running `Command { std: "docker" "start" "-a" "b91846e18962c4bc7277f3378c1e851e19d7d7cf4891fec5550aaf5f550c8e5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling binartree v2.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "b91846e18962c4bc7277f3378c1e851e19d7d7cf4891fec5550aaf5f550c8e5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b91846e18962c4bc7277f3378c1e851e19d7d7cf4891fec5550aaf5f550c8e5c", kill_on_drop: false }`
[INFO] [stdout] b91846e18962c4bc7277f3378c1e851e19d7d7cf4891fec5550aaf5f550c8e5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 975c6400bceb6bf209152934200b09ae3f9504cfc7d96f04d82fa08d39094176
[INFO] running `Command { std: "docker" "start" "-a" "975c6400bceb6bf209152934200b09ae3f9504cfc7d96f04d82fa08d39094176", kill_on_drop: false }`
[INFO] [stderr]    Compiling binartree v2.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "975c6400bceb6bf209152934200b09ae3f9504cfc7d96f04d82fa08d39094176", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "975c6400bceb6bf209152934200b09ae3f9504cfc7d96f04d82fa08d39094176", kill_on_drop: false }`
[INFO] [stdout] 975c6400bceb6bf209152934200b09ae3f9504cfc7d96f04d82fa08d39094176
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 209144b1016cbbeffeabf9932c84bcb8527edbb4d6a36c8c76794d2c242a539d
[INFO] running `Command { std: "docker" "start" "-a" "209144b1016cbbeffeabf9932c84bcb8527edbb4d6a36c8c76794d2c242a539d", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 59 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/binartree-06e438d802946bd4)
[INFO] [stdout] test tests::iter_test::iter_append_test ... ok
[INFO] [stdout] test tests::iter_test::iter_capacity_test ... ok
[INFO] [stdout] test tests::iter_test::iter_empty_test ... ok
[INFO] [stdout] test tests::iter_test::iter_dedup_test ... ok
[INFO] [stdout] test tests::iter_test::iter_extend_test ... ok
[INFO] [stdout] test tests::iter_test::iter_clear_test ... ok
[INFO] [stdout] test tests::iter_test::iter_extend_slice_test ... ok
[INFO] [stdout] test tests::iter_test::iter_from_iterator_len_test ... ok
[INFO] [stdout] test tests::iter_test::iter_push_back_test ... ok
[INFO] [stdout] test tests::iter_test::iter_insert_test ... ok
[INFO] [stdout] test tests::iter_test::iter_shrink_test ... ok
[INFO] [stdout] test tests::iter_test::iter_reserve_test ... ok
[INFO] [stdout] test tests::node_test::node_drop_test ... ok
[INFO] [stdout] test tests::node_test::node_find_test ... ok
[INFO] [stdout] test tests::iter_test::iter_swap_front ... ok
[INFO] [stdout] test tests::iter_test::iter_truncate_test ... ok
[INFO] [stdout] test tests::node_test::node_default_test ... ok
[INFO] [stdout] test tests::node_test::node_get_key_test ... ok
[INFO] [stdout] test tests::iter_test::iter_push_front_test ... ok
[INFO] [stdout] test tests::iter_test::iter_remove_test ... ok
[INFO] [stdout] test tests::iter_test::iter_pop_back_test ... ok
[INFO] [stdout] test tests::iter_test::iter_swap_back ... ok
[INFO] [stdout] test tests::iter_test::iter_retain_test ... ok
[INFO] [stdout] test tests::iter_test::iter_drain_filter_test ... ok
[INFO] [stdout] test tests::iter_test::iter_pop_front_test ... ok
[INFO] [stdout] test tests::iter_test::iter_drain_test ... ok
[INFO] [stdout] test tests::tree_test::tree_contains_test ... ok
[INFO] [stdout] test tests::tree_test::tree_default_test ... ok
[INFO] [stdout] test tests::tree_test::tree_pop_last ... ok
[INFO] [stdout] test tests::node_test::node_walk_test ... ok
[INFO] [stdout] test tests::node_test::node_min_max_test ... ok
[INFO] [stdout] test tests::tree_test::tree_append_test ... ok
[INFO] [stdout] test tests::node_test::node_insert_test ... ok
[INFO] [stdout] test tests::node_test::node_insert_full_test ... ok
[INFO] [stdout] test tests::node_test::node_ignores_test ... ok
[INFO] [stdout] test tests::node_test::node_new_test ... ok
[INFO] [stdout] test tests::tree_test::tree_insert_test ... ok
[INFO] [stdout] test tests::tree_test::tree_insert_full_test ... ok
[INFO] [stdout] test tests::node_test::node_remove_test ... ok
[INFO] [stdout] test tests::tree_test::tree_new_test ... ok
[INFO] [stdout] test tests::tree_test::tree_first_last_test ... ok
[INFO] [stdout] test tests::tree_test::tree_pop_first ... ok
[INFO] [stdout] test tests::tree_test::tree_remove_test ... ok
[INFO] [stdout] test tests::tree_test::tree_len_test ... ok
[INFO] [stdout] test tests::tree_test::tree_iter_test ... ok
[INFO] [stdout] test tests::tree_test::tree_empty_test ... ok
[INFO] [stdout] test tests::iter_test::iter_split_off_test ... ok
[INFO] [stdout] test tests::tree_test::tree_multi_remove_test ... ok
[INFO] [stdout] test tests::tree_test::tree_clear_test ... ok
[INFO] [stdout] test tests::tree_test::tree_intersection_test ... ok
[INFO] [stdout] test tests::tree_test::tree_difference_test ... ok
[INFO] [stdout] test tests::tree_test::tree_replace_val_test ... ok
[INFO] [stdout] test tests::tree_test::tree_sym_dif_test ... ok
[INFO] [stdout] test tests::tree_test::tree_is_disjoint_test ... ok
[INFO] [stdout] test tests::tree_test::tree_bitxor_test ... ok
[INFO] [stdout] test tests::tree_test::tree_union_test ... ok
[INFO] [stdout] test tests::tree_test::tree_bitand_test ... ok
[INFO] [stdout] test tests::tree_test::tree_drain_filter_test ... ok
[INFO] [stderr]    Doc-tests binartree
[INFO] [stdout] test tests::tree_test::tree_bitor_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 59 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.43s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 67 tests
[INFO] [stdout] test src/iter.rs - iter::TreeIter<T>::is_empty (line 140) ... ok
[INFO] [stdout] test src/iter.rs - iter::TreeIter<T>::pop_back (line 415) ... ok
[INFO] [stdout] test src/iter.rs - iter::TreeIter<T>::capacity (line 102) ... 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 binartree --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern binartree=/opt/rustwide/target/debug/deps/libbinartree-2cd693aa1bcaf7cc.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "209144b1016cbbeffeabf9932c84bcb8527edbb4d6a36c8c76794d2c242a539d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "209144b1016cbbeffeabf9932c84bcb8527edbb4d6a36c8c76794d2c242a539d", kill_on_drop: false }`
[INFO] [stdout] 209144b1016cbbeffeabf9932c84bcb8527edbb4d6a36c8c76794d2c242a539d