[INFO] fetching crate treers 0.1.2...
[INFO] testing treers-0.1.2 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate treers 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate treers 0.1.2 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate treers 0.1.2
[INFO] finished tweaking crates.io crate treers 0.1.2
[INFO] tweaked toml for crates.io crate treers 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate treers 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3811f121372afca5cfd8770afc57b63901c8d8c2ba6a2db929be5369d3504210
[INFO] running `Command { std: "docker" "start" "-a" "3811f121372afca5cfd8770afc57b63901c8d8c2ba6a2db929be5369d3504210", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3811f121372afca5cfd8770afc57b63901c8d8c2ba6a2db929be5369d3504210", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3811f121372afca5cfd8770afc57b63901c8d8c2ba6a2db929be5369d3504210", kill_on_drop: false }`
[INFO] [stdout] 3811f121372afca5cfd8770afc57b63901c8d8c2ba6a2db929be5369d3504210
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5bdaa6b5e14762901920c01a8eed8873ae786a18ad3d50fb4f1d0cddfee9131e
[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" "5bdaa6b5e14762901920c01a8eed8873ae786a18ad3d50fb4f1d0cddfee9131e", kill_on_drop: false }`
[INFO] [stderr]    Compiling treers v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "5bdaa6b5e14762901920c01a8eed8873ae786a18ad3d50fb4f1d0cddfee9131e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bdaa6b5e14762901920c01a8eed8873ae786a18ad3d50fb4f1d0cddfee9131e", kill_on_drop: false }`
[INFO] [stdout] 5bdaa6b5e14762901920c01a8eed8873ae786a18ad3d50fb4f1d0cddfee9131e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 22c1d924ba6cf154bcf9f5c6e2b1c589c03e85256eb21d7977d9ee7ec5d4dc98
[INFO] running `Command { std: "docker" "start" "-a" "22c1d924ba6cf154bcf9f5c6e2b1c589c03e85256eb21d7977d9ee7ec5d4dc98", kill_on_drop: false }`
[INFO] [stderr]    Compiling bencher v0.1.5
[INFO] [stderr]    Compiling treers v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.29s
[INFO] running `Command { std: "docker" "inspect" "22c1d924ba6cf154bcf9f5c6e2b1c589c03e85256eb21d7977d9ee7ec5d4dc98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22c1d924ba6cf154bcf9f5c6e2b1c589c03e85256eb21d7977d9ee7ec5d4dc98", kill_on_drop: false }`
[INFO] [stdout] 22c1d924ba6cf154bcf9f5c6e2b1c589c03e85256eb21d7977d9ee7ec5d4dc98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d59db2dddff95fd670b6598e399aa4ed0afe30f20972763ba1eb920792915063
[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" "d59db2dddff95fd670b6598e399aa4ed0afe30f20972763ba1eb920792915063", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/treers-d75dd127ebd0e794)
[INFO] [stdout] 
[INFO] [stdout] running 53 tests
[INFO] [stdout] test bst::tests::test_contains ... ok
[INFO] [stdout] test bst::tests::test_in_order ... ok
[INFO] [stdout] test bst::tests::test_get ... ok
[INFO] [stdout] test bst::tests::test_is_empty ... ok
[INFO] [stdout] test bst::tests::test_is_not_empty ... ok
[INFO] [stdout] test bst::tests::test_level_order ... ok
[INFO] [stdout] test bst::tests::test_min ... ok
[INFO] [stdout] test bst::tests::test_post_order ... ok
[INFO] [stdout] test bst::tests::test_put ... ok
[INFO] [stdout] test btree::tests::test_get ... ok
[INFO] [stdout] test bst::tests::test_size_zero ... ok
[INFO] [stdout] test bst::tests::test_pre_order ... ok
[INFO] [stdout] test bst::tests::test_max ... ok
[INFO] [stdout] test bst::tests::test_size_two ... ok
[INFO] [stdout] test btree::tests::test_contains ... ok
[INFO] [stdout] test btree::tests::test_is_not_empty ... ok
[INFO] [stdout] test btree::tests::test_is_empty ... ok
[INFO] [stdout] test rbtree::tests::test_is_not_empty ... ok
[INFO] [stdout] test rbtree::tests::test_left_rotate_pre_order ... ok
[INFO] [stdout] test rbtree::tests::test_left_rotate_size_and_height ... ok
[INFO] [stdout] test rbtree::tests::test_get ... ok
[INFO] [stdout] test rbtree::tests::test_contains ... ok
[INFO] [stdout] test rbtree::tests::test_is_empty ... ok
[INFO] [stdout] test rbtree::tests::test_left_rotate_in_order ... ok
[INFO] [stdout] test rbtree::tests::test_left_rotate_level_order ... ok
[INFO] [stdout] test rbtree::tests::test_left_rotate_min ... ok
[INFO] [stdout] test btree::tests::test_left_rotate_one_thousand ... ok
[INFO] [stdout] test btree::tests::test_put ... ok
[INFO] [stdout] test btree::tests::test_size_zero ... ok
[INFO] [stdout] test rbtree::tests::test_left_rotate_post_order ... ok
[INFO] [stdout] test rbtree::tests::test_right_rotate_min ... ok
[INFO] [stdout] test rbtree::tests::test_random_in_order ... ok
[INFO] [stdout] test rbtree::tests::test_right_rotate_post_order ... ok
[INFO] [stdout] test rbtree::tests::test_right_rotate_pre_order ... ok
[INFO] [stdout] test rbtree::tests::test_right_rotate_max ... ok
[INFO] [stdout] test rbtree::tests::test_random_post_order ... ok
[INFO] [stdout] test rbtree::tests::test_right_rotate_level_order ... ok
[INFO] [stdout] test rbtree::tests::test_random_level_order ... ok
[INFO] [stdout] test rbtree::tests::test_put ... ok
[INFO] [stdout] test bst::tests::test_index_panic - should panic ... ok
[INFO] [stdout] test rbtree::tests::test_random_pre_order ... ok
[INFO] [stdout] test rbtree::tests::test_right_rotate_in_order ... ok
[INFO] [stdout] test rbtree::tests::test_shuffle_max ... ok
[INFO] [stdout] test tests::test_empty ... ok
[INFO] [stdout] test rbtree::tests::test_size_zero ... ok
[INFO] [stdout] test tests::its_42 ... ok
[INFO] [stdout] test btree::tests::test_index_panic - should panic ... ok
[INFO] [stdout] test rbtree::tests::test_index_panic - should panic ... ok
[INFO] [stdout] test rbtree::tests::test_left_rotate_thousand ... ok
[INFO] [stdout] test bst::tests::test_size_and_height_one_thousand ... ok
[INFO] [stdout] test rbtree::tests::test_right_rotate_size_and_height ... ok
[INFO] [stdout] test btree::tests::test_right_rotate_one_thousand ... ok
[INFO] [stdout] test rbtree::tests::test_right_rotate_thousand ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 53 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests treers
[INFO] [stdout] 
[INFO] [stdout] running 36 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 treers --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bencher=/opt/rustwide/target/debug/deps/libbencher-37e478862afe2758.rlib --extern treers=/opt/rustwide/target/debug/deps/libtreers-d814f1c2de010aba.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "d59db2dddff95fd670b6598e399aa4ed0afe30f20972763ba1eb920792915063", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d59db2dddff95fd670b6598e399aa4ed0afe30f20972763ba1eb920792915063", kill_on_drop: false }`
[INFO] [stdout] d59db2dddff95fd670b6598e399aa4ed0afe30f20972763ba1eb920792915063