[INFO] fetching crate truetree 0.1.3...
[INFO] testing truetree-0.1.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate truetree 0.1.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate truetree 0.1.3 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 truetree 0.1.3
[INFO] finished tweaking crates.io crate truetree 0.1.3
[INFO] tweaked toml for crates.io crate truetree 0.1.3 written to /workspace/builds/worker-0/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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] ac08d1db6a7e53ac0bc56d6697e5440a332ece2abb53a809f788b1d3191aee91
[INFO] running `Command { std: "docker" "start" "-a" "ac08d1db6a7e53ac0bc56d6697e5440a332ece2abb53a809f788b1d3191aee91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac08d1db6a7e53ac0bc56d6697e5440a332ece2abb53a809f788b1d3191aee91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac08d1db6a7e53ac0bc56d6697e5440a332ece2abb53a809f788b1d3191aee91", kill_on_drop: false }`
[INFO] [stdout] ac08d1db6a7e53ac0bc56d6697e5440a332ece2abb53a809f788b1d3191aee91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 88921b35a00961e63a0aa36ba78a762a730b235e7179ceecc3cae66b8218f297
[INFO] running `Command { std: "docker" "start" "-a" "88921b35a00961e63a0aa36ba78a762a730b235e7179ceecc3cae66b8218f297", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling truetree v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.38s
[INFO] running `Command { std: "docker" "inspect" "88921b35a00961e63a0aa36ba78a762a730b235e7179ceecc3cae66b8218f297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88921b35a00961e63a0aa36ba78a762a730b235e7179ceecc3cae66b8218f297", kill_on_drop: false }`
[INFO] [stdout] 88921b35a00961e63a0aa36ba78a762a730b235e7179ceecc3cae66b8218f297
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] f49b9614ab86b1db5f2de5814fdf37c562b6c4ba231f5ec628a2f35b9e4acc6b
[INFO] running `Command { std: "docker" "start" "-a" "f49b9614ab86b1db5f2de5814fdf37c562b6c4ba231f5ec628a2f35b9e4acc6b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling truetree v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.75s
[INFO] running `Command { std: "docker" "inspect" "f49b9614ab86b1db5f2de5814fdf37c562b6c4ba231f5ec628a2f35b9e4acc6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f49b9614ab86b1db5f2de5814fdf37c562b6c4ba231f5ec628a2f35b9e4acc6b", kill_on_drop: false }`
[INFO] [stdout] f49b9614ab86b1db5f2de5814fdf37c562b6c4ba231f5ec628a2f35b9e4acc6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] ba6bee595dfb6eba77821dddd3feb77d7c0c93297b563c96893d2cb9b3d213cf
[INFO] running `Command { std: "docker" "start" "-a" "ba6bee595dfb6eba77821dddd3feb77d7c0c93297b563c96893d2cb9b3d213cf", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/truetree-bd0c6b3ff2b5719b)
[INFO] [stdout] 
[INFO] [stdout] running 39 tests
[INFO] [stdout] test test_node::test_create ... ok
[INFO] [stdout] test test_node::test_create_node ... ok
[INFO] [stdout] test test_node::test_delete ... ok
[INFO] [stdout] test test_node::test_create_tree ... ok
[INFO] [stdout] test test_node::test_dump ... ok
[INFO] [stdout] test test_node::test_get ... ok
[INFO] [stdout] test test_node::test_get_missing ... ok
[INFO] [stdout] test test_node::test_get_not_modifying ... ok
[INFO] [stdout] test test_node::test_get_remove ... ok
[INFO] [stdout] test test_node::test_insert ... ok
[INFO] [stdout] test test_node::test_min_max ... ok
[INFO] [stdout] test test_node::test_rebalance ... ok
[INFO] [stdout] test test_node::test_rebalance_twice ... ok
[INFO] [stdout] test test_node::test_remove ... ok
[INFO] [stdout] test test_node::test_remove_complex ... ok
[INFO] [stdout] test test_node::test_remove_min ... ok
[INFO] [stdout] test test_node::test_rotate_left ... ok
[INFO] [stdout] test test_node::test_rotate_left_right ... ok
[INFO] [stdout] test test_node::test_rotate_right ... ok
[INFO] [stdout] test test_node::test_rotate_right_left ... ok
[INFO] [stdout] test test_node::test_sanity_check ... ok
[INFO] [stdout] test test_node::test_side ... ok
[INFO] [stdout] test test_node::test_width_depth_count ... ok
[INFO] [stdout] test test_tree::test_balancing ... ok
[INFO] [stdout] test test_tree::test_contains ... ok
[INFO] [stdout] test test_tree::test_create ... ok
[INFO] [stdout] test test_tree::test_delete_complex ... ok
[INFO] [stdout] test test_tree::test_delete_heap ... ok
[INFO] [stdout] test test_tree::test_height ... ok
[INFO] [stdout] test test_tree::test_get_set ... ok
[INFO] [stdout] test test_tree::test_insert ... ok
[INFO] [stdout] test test_tree::test_insert_complex ... ok
[INFO] [stdout] test test_tree::test_insert_heap_var ... ok
[INFO] [stdout] test test_tree::test_insert_thrice ... ok
[INFO] [stdout] test test_tree::test_insert_twice ... ok
[INFO] [stdout] test test_tree::test_min_max ... ok
[INFO] [stdout] test test_tree::test_remove ... ok
[INFO] [stdout] test test_tree::test_remove_duplicates ... ok
[INFO] [stdout] test test_tree::test_width_count_depth ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 39 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration_avl.rs (/opt/rustwide/target/debug/deps/integration_avl-550ae1bf390f3080)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_avl ... 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]    Doc-tests truetree
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ba6bee595dfb6eba77821dddd3feb77d7c0c93297b563c96893d2cb9b3d213cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba6bee595dfb6eba77821dddd3feb77d7c0c93297b563c96893d2cb9b3d213cf", kill_on_drop: false }`
[INFO] [stdout] ba6bee595dfb6eba77821dddd3feb77d7c0c93297b563c96893d2cb9b3d213cf