[INFO] crate leonardo-heap 0.3.0 is already in cache
[INFO] extracting crate leonardo-heap 0.3.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/leonardo-heap/0.3.0
[INFO] extracting crate leonardo-heap 0.3.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/leonardo-heap/0.3.0
[INFO] validating manifest of leonardo-heap-0.3.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of leonardo-heap-0.3.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing leonardo-heap-0.3.0
[INFO] finished frobbing leonardo-heap-0.3.0
[INFO] frobbed toml for leonardo-heap-0.3.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/leonardo-heap/0.3.0/Cargo.toml
[INFO] started frobbing leonardo-heap-0.3.0
[INFO] finished frobbing leonardo-heap-0.3.0
[INFO] frobbed toml for leonardo-heap-0.3.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/leonardo-heap/0.3.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing leonardo-heap-0.3.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/leonardo-heap/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] e2e0e0200b5b4b342fdaede358474f5ab3afeba0f7bd5bf7929a6e7377a5f753
[INFO] running `"docker" "start" "-a" "e2e0e0200b5b4b342fdaede358474f5ab3afeba0f7bd5bf7929a6e7377a5f753"`
[INFO] [stderr]    Compiling leonardo-heap v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `leonardo_closed`
[INFO] [stderr]   --> src/leonardo.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn leonardo_closed(order: u32) -> usize {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `leonardo_naive`
[INFO] [stderr]   --> src/leonardo.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn leonardo_naive(order: u32) -> usize {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new_from_len`
[INFO] [stderr]   --> src/layout.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn new_from_len(size: usize) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `"docker" "inspect" "e2e0e0200b5b4b342fdaede358474f5ab3afeba0f7bd5bf7929a6e7377a5f753"`
[INFO] running `"docker" "rm" "-f" "e2e0e0200b5b4b342fdaede358474f5ab3afeba0f7bd5bf7929a6e7377a5f753"`
[INFO] [stdout] e2e0e0200b5b4b342fdaede358474f5ab3afeba0f7bd5bf7929a6e7377a5f753
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/leonardo-heap/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] ad48877a2f4a3e42e7a7aadc45705a6394397714fe75deb5e501e59073b0ef39
[INFO] running `"docker" "start" "-a" "ad48877a2f4a3e42e7a7aadc45705a6394397714fe75deb5e501e59073b0ef39"`
[INFO] [stderr]    Compiling leonardo-heap v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `"docker" "inspect" "ad48877a2f4a3e42e7a7aadc45705a6394397714fe75deb5e501e59073b0ef39"`
[INFO] running `"docker" "rm" "-f" "ad48877a2f4a3e42e7a7aadc45705a6394397714fe75deb5e501e59073b0ef39"`
[INFO] [stdout] ad48877a2f4a3e42e7a7aadc45705a6394397714fe75deb5e501e59073b0ef39
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/leonardo-heap/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 94e9158ba01af668d5d5a09709c2ba5129981052381f37d69549c352f825c210
[INFO] running `"docker" "start" "-a" "94e9158ba01af668d5d5a09709c2ba5129981052381f37d69549c352f825c210"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/leonardo_heap-63951b8f13a9f392
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[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_one ... ok
[INFO] [stdout] test tests::test_balance_after_pop_two ... ok
[INFO] [stdout] test tests::test_balance_after_push_first ... ok
[INFO] [stdout] test tests::test_balance_after_push_merge ... ok
[INFO] [stdout] test tests::test_balance_after_push_second ... ok
[INFO] [stdout] test tests::test_balance_after_pop_mutiple_layers ... ok
[INFO] [stdout] test tests::test_iter ... ok
[INFO] [stdout] test tests::test_balance_after_pop_empty ... ok
[INFO] [stdout] test tests::test_push_pop ... ok
[INFO] [stdout] test leonardo::tests::test_leonardo_lookup_matches ... ok
[INFO] [stdout] test tests::test_sift_down_one ... ok
[INFO] [stdout] test tests::test_sift_down_sorting ... ok
[INFO] [stdout] test leonardo::tests::test_leonardo_closed_matches ... ok
[INFO] [stdout] test tests::test_sift_down_zero ... ok
[INFO] [stdout] test tests::test_sift_down_two ... ok
[INFO] [stdout] test tests::test_random ... ok
[INFO] [stdout] test tests::test_sort_random ... ok
[INFO] [stdout] test tests::test_sift_down_three ... 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 `"docker" "inspect" "94e9158ba01af668d5d5a09709c2ba5129981052381f37d69549c352f825c210"`
[INFO] running `"docker" "rm" "-f" "94e9158ba01af668d5d5a09709c2ba5129981052381f37d69549c352f825c210"`
[INFO] [stdout] 94e9158ba01af668d5d5a09709c2ba5129981052381f37d69549c352f825c210