[INFO] fetching crate rust_black_tree 0.1.5...
[INFO] testing rust_black_tree-0.1.5 against 1.49.0 for beta-1.50-1
[INFO] extracting crate rust_black_tree 0.1.5 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate rust_black_tree 0.1.5 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_black_tree 0.1.5
[INFO] finished tweaking crates.io crate rust_black_tree 0.1.5
[INFO] tweaked toml for crates.io crate rust_black_tree 0.1.5 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate rust_black_tree 0.1.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 803222adb4903b113d25d4e5dcb0c687291f0f8965db005324d719171ba8c54f
[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" "803222adb4903b113d25d4e5dcb0c687291f0f8965db005324d719171ba8c54f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "803222adb4903b113d25d4e5dcb0c687291f0f8965db005324d719171ba8c54f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "803222adb4903b113d25d4e5dcb0c687291f0f8965db005324d719171ba8c54f", kill_on_drop: false }`
[INFO] [stdout] 803222adb4903b113d25d4e5dcb0c687291f0f8965db005324d719171ba8c54f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3862d3ebbc6ac9410cd5c2307d594217ab56b87befbdcfd8ebb31e7b997e0d00
[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" "3862d3ebbc6ac9410cd5c2307d594217ab56b87befbdcfd8ebb31e7b997e0d00", kill_on_drop: false }`
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling isatty v0.1.9
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling lexical-core v0.6.7
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling rustyline v6.0.0
[INFO] [stderr]    Compiling rust_black_tree v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.76s
[INFO] running `Command { std: "docker" "inspect" "3862d3ebbc6ac9410cd5c2307d594217ab56b87befbdcfd8ebb31e7b997e0d00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3862d3ebbc6ac9410cd5c2307d594217ab56b87befbdcfd8ebb31e7b997e0d00", kill_on_drop: false }`
[INFO] [stdout] 3862d3ebbc6ac9410cd5c2307d594217ab56b87befbdcfd8ebb31e7b997e0d00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9ce17af3b15a8f00d9d00d301cba4261efeafac93203a92e9cc2783e2572b62
[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" "d9ce17af3b15a8f00d9d00d301cba4261efeafac93203a92e9cc2783e2572b62", kill_on_drop: false }`
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling regex-syntax v0.6.15
[INFO] [stderr]    Compiling oorandom v11.1.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling regex-automata v0.1.8
[INFO] [stderr]    Compiling plotters v0.2.12
[INFO] [stderr]    Compiling bstr v0.2.11
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling criterion-plot v0.4.1
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling tinytemplate v1.0.3
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling criterion v0.3.1
[INFO] [stderr]    Compiling rust_black_tree v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 44.99s
[INFO] running `Command { std: "docker" "inspect" "d9ce17af3b15a8f00d9d00d301cba4261efeafac93203a92e9cc2783e2572b62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9ce17af3b15a8f00d9d00d301cba4261efeafac93203a92e9cc2783e2572b62", kill_on_drop: false }`
[INFO] [stdout] d9ce17af3b15a8f00d9d00d301cba4261efeafac93203a92e9cc2783e2572b62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e0c32f085420a9c756a7f1f92c4cbe7795215c3303b4da3d7cf5517a94d81484
[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" "e0c32f085420a9c756a7f1f92c4cbe7795215c3303b4da3d7cf5517a94d81484", 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]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_black_trees-e48d0b5d151e0ce5
[INFO] [stdout] running 33 tests
[INFO] [stdout] test avltree::tests::balance_factor_helpers ... ok
[INFO] [stdout] test avltree::tests::insert_one ... ok
[INFO] [stdout] test node::tests::get_size ... ok
[INFO] [stdout] test node::tests::get_uncle_test ... ok
[INFO] [stdout] test node::tests::print_tree_test ... ok
[INFO] [stdout] test avltree::tests::new ... ok
[INFO] [stdout] test avltree::tests::insert_few ... ok
[INFO] [stdout] test node::tests::get_sibling_test ... ok
[INFO] [stdout] test rbtree::tests::test_delete_mem ... ok
[INFO] [stdout] test rbtree::tests::test_height ... ok
[INFO] [stdout] test rbtree::tests::test_delete ... ok
[INFO] [stdout] test rbtree::tests::test_insert_2 ... ok
[INFO] [stdout] test rbtree::tests::test_insert ... ok
[INFO] [stdout] test rbtree::tests::test_tree_print ... ok
[INFO] [stdout] test unbalancetree::tests::test_contains ... ok
[INFO] [stdout] test unbalancetree::tests::test_delete_mem ... ok
[INFO] [stdout] test unbalancetree::tests::test_delete ... ok
[INFO] [stdout] test unbalancetree::tests::test_height ... ok
[INFO] [stdout] test unbalancetree::tests::test_insert ... ok
[INFO] [stdout] test unbalancetree::tests::test_tree_print ... ok
[INFO] [stdout] test node::tests::get_height ... ok
[INFO] [stdout] test node::tests::get_child_test ... ok
[INFO] [stdout] test node::tests::find_min ... ok
[INFO] [stdout] test rbtree::tests::find_leaf_count ... ok
[INFO] [stdout] test rbtree::tests::is_empty ... ok
[INFO] [stdout] test rbtree::tests::test_contains ... ok
[INFO] [stdout] test node::tests::find_leaf_count ... ok
[INFO] [stdout] test avltree::tests::avl_del ... ok
[INFO] [stdout] test prettynodeprinter::tests::test_3 ... ok
[INFO] [stdout] test prettynodeprinter::tests::test_avl ... ok
[INFO] [stdout] test prettynodeprinter::tests::test_easy ... ok
[INFO] [stdout] test prettynodeprinter::tests::test_4 ... ok
[INFO] [stdout] test prettynodeprinter::tests::test_2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 33 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/demo-e4ccc93edaeb2834
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust_black_trees
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e0c32f085420a9c756a7f1f92c4cbe7795215c3303b4da3d7cf5517a94d81484", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0c32f085420a9c756a7f1f92c4cbe7795215c3303b4da3d7cf5517a94d81484", kill_on_drop: false }`
[INFO] [stdout] e0c32f085420a9c756a7f1f92c4cbe7795215c3303b4da3d7cf5517a94d81484