[INFO] fetching crate generic-tree 0.2.0...
[INFO] testing generic-tree-0.2.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate generic-tree 0.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate generic-tree 0.2.0 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 generic-tree 0.2.0
[INFO] finished tweaking crates.io crate generic-tree 0.2.0
[INFO] tweaked toml for crates.io crate generic-tree 0.2.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e887b0fcac1ac24e92d1fabf714fef8e174bdddba14a94616c92a2bb299f2c61
[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" "e887b0fcac1ac24e92d1fabf714fef8e174bdddba14a94616c92a2bb299f2c61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e887b0fcac1ac24e92d1fabf714fef8e174bdddba14a94616c92a2bb299f2c61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e887b0fcac1ac24e92d1fabf714fef8e174bdddba14a94616c92a2bb299f2c61", kill_on_drop: false }`
[INFO] [stdout] e887b0fcac1ac24e92d1fabf714fef8e174bdddba14a94616c92a2bb299f2c61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5d9d91a415943bafc9f95c4b46748a4ddc1bf847895e8ce91624dc75d2ba6f6
[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" "c5d9d91a415943bafc9f95c4b46748a4ddc1bf847895e8ce91624dc75d2ba6f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling generic-tree v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "c5d9d91a415943bafc9f95c4b46748a4ddc1bf847895e8ce91624dc75d2ba6f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5d9d91a415943bafc9f95c4b46748a4ddc1bf847895e8ce91624dc75d2ba6f6", kill_on_drop: false }`
[INFO] [stdout] c5d9d91a415943bafc9f95c4b46748a4ddc1bf847895e8ce91624dc75d2ba6f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 2d9cdc7051e07a68ec1cf6c5012da46e27997ff9f54a5ca35d6f8125b80667af
[INFO] running `Command { std: "docker" "start" "-a" "2d9cdc7051e07a68ec1cf6c5012da46e27997ff9f54a5ca35d6f8125b80667af", kill_on_drop: false }`
[INFO] [stderr]    Compiling generic-tree v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "2d9cdc7051e07a68ec1cf6c5012da46e27997ff9f54a5ca35d6f8125b80667af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d9cdc7051e07a68ec1cf6c5012da46e27997ff9f54a5ca35d6f8125b80667af", kill_on_drop: false }`
[INFO] [stdout] 2d9cdc7051e07a68ec1cf6c5012da46e27997ff9f54a5ca35d6f8125b80667af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", 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] b95b67bf52775cb8b55c9a6bd1459df801ba18d4571d60fc55a2881da96c5aaf
[INFO] running `Command { std: "docker" "start" "-a" "b95b67bf52775cb8b55c9a6bd1459df801ba18d4571d60fc55a2881da96c5aaf", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/generic_tree-d87164add43b056d
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests generic-tree
[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 14 tests
[INFO] [stdout] test src/lib.rs - Tree<K, V>::get_node (line 63) ... ok
[INFO] [stdout] test src/lib.rs - Node<K, V>::mut_value (line 441) ... ok
[INFO] [stdout] test src/lib.rs - Node<K, V>::new (line 204) ... ok
[INFO] [stdout] test src/lib.rs - Node<K, V>::add_child (line 224) ... ok
[INFO] [stdout] test src/lib.rs - Node<K, V>::value (line 426) ... ok
[INFO] [stdout] test src/lib.rs - Tree<K, V>::get_mut_node (line 94) ... ok
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] test src/lib.rs - Node<K, V>::get_child (line 297) ... ok
[INFO] [stdout] test src/lib.rs - Tree<K, V>::add_node (line 128) ... ok
[INFO] [stdout] test src/lib.rs - Node<K, V>::add_child_at_path (line 261) ... ok
[INFO] [stdout] test src/lib.rs - Node<K, V>::key (line 460) ... ok
[INFO] [stdout] test src/lib.rs - Tree<K, V>::remove_node (line 168) ... ok
[INFO] [stdout] test src/lib.rs - Node<K, V>::remove_child (line 382) ... ok
[INFO] [stdout] test src/lib.rs - Node<K, V>::get_mut_child (line 339) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b95b67bf52775cb8b55c9a6bd1459df801ba18d4571d60fc55a2881da96c5aaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b95b67bf52775cb8b55c9a6bd1459df801ba18d4571d60fc55a2881da96c5aaf", kill_on_drop: false }`
[INFO] [stdout] b95b67bf52775cb8b55c9a6bd1459df801ba18d4571d60fc55a2881da96c5aaf