[INFO] fetching crate nano_arena 0.5.1...
[INFO] testing nano_arena-0.5.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate nano_arena 0.5.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate nano_arena 0.5.1 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 nano_arena 0.5.1
[INFO] finished tweaking crates.io crate nano_arena 0.5.1
[INFO] tweaked toml for crates.io crate nano_arena 0.5.1 written to /workspace/builds/worker-8/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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 17dc41981ea5e035a1f114f6becc54614996bf5270411a643a50f2a7919c2558
[INFO] running `Command { std: "docker" "start" "-a" "17dc41981ea5e035a1f114f6becc54614996bf5270411a643a50f2a7919c2558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17dc41981ea5e035a1f114f6becc54614996bf5270411a643a50f2a7919c2558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17dc41981ea5e035a1f114f6becc54614996bf5270411a643a50f2a7919c2558", kill_on_drop: false }`
[INFO] [stdout] 17dc41981ea5e035a1f114f6becc54614996bf5270411a643a50f2a7919c2558
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] f0862fd0306a9b5fea79faf126433f2d84e9e937e8604bbe9c1becf92696ca5d
[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" "f0862fd0306a9b5fea79faf126433f2d84e9e937e8604bbe9c1becf92696ca5d", kill_on_drop: false }`
[INFO] [stderr]    Compiling nano_arena v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "f0862fd0306a9b5fea79faf126433f2d84e9e937e8604bbe9c1becf92696ca5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0862fd0306a9b5fea79faf126433f2d84e9e937e8604bbe9c1becf92696ca5d", kill_on_drop: false }`
[INFO] [stdout] f0862fd0306a9b5fea79faf126433f2d84e9e937e8604bbe9c1becf92696ca5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 4fd4d68216eaab44bc591898483e06c41dbfc30e88c7b14baab014d7f5149e4b
[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" "4fd4d68216eaab44bc591898483e06c41dbfc30e88c7b14baab014d7f5149e4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling nano_arena v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.91s
[INFO] running `Command { std: "docker" "inspect" "4fd4d68216eaab44bc591898483e06c41dbfc30e88c7b14baab014d7f5149e4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fd4d68216eaab44bc591898483e06c41dbfc30e88c7b14baab014d7f5149e4b", kill_on_drop: false }`
[INFO] [stdout] 4fd4d68216eaab44bc591898483e06c41dbfc30e88c7b14baab014d7f5149e4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] da24004b5bbff4bd6cd5663d2beb25a5a48f57dc6c5be1fb046d4ffd1ba48044
[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" "da24004b5bbff4bd6cd5663d2beb25a5a48f57dc6c5be1fb046d4ffd1ba48044", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/nano_arena-f189b6fc63a22166
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test tests::arena_length ... ok
[INFO] [stdout] test tests::cloned_index_should_equal ... ok
[INFO] [stdout] test tests::apply_ordering ... ok
[INFO] [stdout] test tests::alloc_with_idx ... ok
[INFO] [stdout] test tests::index_should_be_hashable ... ok
[INFO] [stdout] test tests::get_mut ... ok
[INFO] [stdout] test tests::getting_by_index ... ok
[INFO] [stdout] test tests::convert_to_vec ... ok
[INFO] [stdout] test tests::debug_printing ... ok
[INFO] [stdout] test tests::mut_iter ... ok
[INFO] [stdout] test tests::iter ... ok
[INFO] [stdout] test tests::split_at ... ok
[INFO] [stdout] test tests::truncate ... ok
[INFO] [stdout] test tests::swap_remove ... ok
[INFO] [stdout] test tests::remove ... ok
[INFO] [stdout] test tests::turn_iterator_into_vector ... ok
[INFO] [stdout] test tests::remove_should_remove_last_value ... ok
[INFO] [stdout] test tests::retain ... ok
[INFO] [stdout] test tests::should_construct_with_capacity ... ok
[INFO] [stdout] test tests::should_construct_default ... ok
[INFO] [stdout] test tests::swap_indexes ... ok
[INFO] [stderr]    Doc-tests nano_arena
[INFO] [stdout] test tests::position ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 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" "da24004b5bbff4bd6cd5663d2beb25a5a48f57dc6c5be1fb046d4ffd1ba48044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da24004b5bbff4bd6cd5663d2beb25a5a48f57dc6c5be1fb046d4ffd1ba48044", kill_on_drop: false }`
[INFO] [stdout] da24004b5bbff4bd6cd5663d2beb25a5a48f57dc6c5be1fb046d4ffd1ba48044