[INFO] fetching crate leonardo-heap 0.3.0...
[INFO] testing leonardo-heap-0.3.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate leonardo-heap 0.3.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate leonardo-heap 0.3.0 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 leonardo-heap 0.3.0
[INFO] finished tweaking crates.io crate leonardo-heap 0.3.0
[INFO] tweaked toml for crates.io crate leonardo-heap 0.3.0 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] [stderr]     Blocking waiting for file lock on package cache
[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] [stdout] efadda0f16f8cd885c8e6344f7a62cd4c8a9cca798f4187b3a9638c0b25615f9
[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" "efadda0f16f8cd885c8e6344f7a62cd4c8a9cca798f4187b3a9638c0b25615f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "efadda0f16f8cd885c8e6344f7a62cd4c8a9cca798f4187b3a9638c0b25615f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efadda0f16f8cd885c8e6344f7a62cd4c8a9cca798f4187b3a9638c0b25615f9", kill_on_drop: false }`
[INFO] [stdout] efadda0f16f8cd885c8e6344f7a62cd4c8a9cca798f4187b3a9638c0b25615f9
[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] 017ce1b7e16eef8e30e42edb4e345e4425b149c3eef3dbef01dc00627fe444fa
[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" "017ce1b7e16eef8e30e42edb4e345e4425b149c3eef3dbef01dc00627fe444fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling leonardo-heap v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `leonardo_closed`
[INFO] [stdout]   --> src/leonardo.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn leonardo_closed(order: u32) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `leonardo_naive`
[INFO] [stdout]   --> src/leonardo.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn leonardo_naive(order: u32) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_from_len`
[INFO] [stdout]   --> src/layout.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn new_from_len(size: usize) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "017ce1b7e16eef8e30e42edb4e345e4425b149c3eef3dbef01dc00627fe444fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "017ce1b7e16eef8e30e42edb4e345e4425b149c3eef3dbef01dc00627fe444fa", kill_on_drop: false }`
[INFO] [stdout] 017ce1b7e16eef8e30e42edb4e345e4425b149c3eef3dbef01dc00627fe444fa
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8e9e8f1afeae2e2754cdcc1492596b63f10cb4a23196d448d2e60728bd559871
[INFO] running `Command { std: "docker" "start" "-a" "8e9e8f1afeae2e2754cdcc1492596b63f10cb4a23196d448d2e60728bd559871", kill_on_drop: false }`
[INFO] [stderr]    Compiling leonardo-heap v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.81s
[INFO] running `Command { std: "docker" "inspect" "8e9e8f1afeae2e2754cdcc1492596b63f10cb4a23196d448d2e60728bd559871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e9e8f1afeae2e2754cdcc1492596b63f10cb4a23196d448d2e60728bd559871", kill_on_drop: false }`
[INFO] [stdout] 8e9e8f1afeae2e2754cdcc1492596b63f10cb4a23196d448d2e60728bd559871
[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] b5a879cae960aebadaa0756fffd772ecac951a188ba3ec14da2ece121e8d262a
[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" "b5a879cae960aebadaa0756fffd772ecac951a188ba3ec14da2ece121e8d262a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/leonardo_heap-7506730db9fd738d
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test leonardo::tests::test_leonardo_lookup_matches ... ok
[INFO] [stdout] test tests::test_balance_after_pop_empty ... ok
[INFO] [stdout] test tests::test_balance_after_pop_restring_after_sift ... ok
[INFO] [stdout] test tests::test_balance_after_pop_split_heaps ... ok
[INFO] [stdout] test tests::test_balance_after_pop_two ... ok
[INFO] [stdout] test tests::test_balance_after_push_second ... ok
[INFO] [stdout] test tests::test_iter ... ok
[INFO] [stdout] test tests::test_push_pop ... ok
[INFO] [stdout] test tests::test_random ... ok
[INFO] [stdout] test tests::test_sift_down_three ... ok
[INFO] [stdout] test tests::test_sift_down_sorting ... ok
[INFO] [stdout] test tests::test_balance_after_push_first ... ok
[INFO] [stdout] test leonardo::tests::test_leonardo_closed_matches ... ok
[INFO] [stdout] test tests::test_sift_down_two ... ok
[INFO] [stdout] test tests::test_balance_after_push_merge ... ok
[INFO] [stdout] test tests::test_balance_after_pop_mutiple_layers ... ok
[INFO] [stdout] test tests::test_sort_random ... ok
[INFO] [stdout] test tests::test_balance_after_pop_one ... ok
[INFO] [stdout] test tests::test_sift_down_one ... ok
[INFO] [stdout] test tests::test_sift_down_zero ... ok
[INFO] [stdout] test tests::test_balance_after_pop_mismatched_lengths ... ok
[INFO] [stdout] test tests::test_balance_after_push_mismatched_lengths ... ok
[INFO] [stdout] test tests::test_sift_down_wrong_order ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b5a879cae960aebadaa0756fffd772ecac951a188ba3ec14da2ece121e8d262a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5a879cae960aebadaa0756fffd772ecac951a188ba3ec14da2ece121e8d262a", kill_on_drop: false }`
[INFO] [stdout] b5a879cae960aebadaa0756fffd772ecac951a188ba3ec14da2ece121e8d262a