[INFO] fetching crate bucket_queue 2.0.0...
[INFO] extracting crate bucket_queue 2.0.0 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/bucket_queue/2.0.0
[INFO] extracting crate bucket_queue 2.0.0 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/bucket_queue/2.0.0
[INFO] validating manifest of bucket_queue-2.0.0 on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bucket_queue-2.0.0 on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bucket_queue-2.0.0
[INFO] finished frobbing bucket_queue-2.0.0
[INFO] frobbed toml for bucket_queue-2.0.0 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/bucket_queue/2.0.0/Cargo.toml
[INFO] started frobbing bucket_queue-2.0.0
[INFO] finished frobbing bucket_queue-2.0.0
[INFO] frobbed toml for bucket_queue-2.0.0 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/bucket_queue/2.0.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] testing bucket_queue-2.0.0 against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/bucket_queue/2.0.0:/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=forbid" "-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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] 36d29e01a35c25dc463b727a6020bf07e20c6a7123b9960b95395c3d5c9f6625
[INFO] running `"docker" "start" "-a" "36d29e01a35c25dc463b727a6020bf07e20c6a7123b9960b95395c3d5c9f6625"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]    Compiling bucket_queue v2.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `"docker" "inspect" "36d29e01a35c25dc463b727a6020bf07e20c6a7123b9960b95395c3d5c9f6625"`
[INFO] running `"docker" "rm" "-f" "36d29e01a35c25dc463b727a6020bf07e20c6a7123b9960b95395c3d5c9f6625"`
[INFO] [stdout] 36d29e01a35c25dc463b727a6020bf07e20c6a7123b9960b95395c3d5c9f6625
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/bucket_queue/2.0.0:/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=forbid" "-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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] c8f18579ba8a7fad69b70449ff2ff0117a731ffea2b1c6533cd579ac1a413d64
[INFO] running `"docker" "start" "-a" "c8f18579ba8a7fad69b70449ff2ff0117a731ffea2b1c6533cd579ac1a413d64"`
[INFO] [stderr]    Compiling bucket_queue v2.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `"docker" "inspect" "c8f18579ba8a7fad69b70449ff2ff0117a731ffea2b1c6533cd579ac1a413d64"`
[INFO] running `"docker" "rm" "-f" "c8f18579ba8a7fad69b70449ff2ff0117a731ffea2b1c6533cd579ac1a413d64"`
[INFO] [stdout] c8f18579ba8a7fad69b70449ff2ff0117a731ffea2b1c6533cd579ac1a413d64
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/bucket_queue/2.0.0:/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=forbid" "-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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"`
[INFO] [stdout] 2e35f7c7081dd30d4a3d9384da6841d697d08e07c8d89acb9d21f8307d4f0dad
[INFO] running `"docker" "start" "-a" "2e35f7c7081dd30d4a3d9384da6841d697d08e07c8d89acb9d21f8307d4f0dad"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/bucket_queue-dd5683817d823f41
[INFO] [stderr]      Running /opt/crater/target/debug/deps/custom_queue-4617af0ce59b76a5
[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] [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] [stderr]      Running /opt/crater/target/debug/deps/bucket_queue-55c3db8b5b75c49a
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test double_ended::it_can_pop_front_and_back_with_maximum_priority ... ok
[INFO] [stdout] test double_ended::it_can_push_and_pop_front_and_back_with_priority ... ok
[INFO] [stdout] test deferrals::it_can_ask_questions_of_buckets_more_than_once ... ok
[INFO] [stdout] test clear::it_can_clear_deferred_buckets ... ok
[INFO] [stdout] test double_ended::it_can_pop_front_and_back_with_minimum_priority ... ok
[INFO] [stdout] test deferrals::it_adds_to_bucket_zero_if_there_are_no_buckets ... ok
[INFO] [stdout] test clear::it_removes_all_items_from_the_bucket_queue ... ok
[INFO] [stdout] test double_ended::it_can_set_the_priority_then_push_and_pop_front_and_back ... ok
[INFO] [stdout] test last_in_first_out::it_can_pop_with_maximum_priority ... ok
[INFO] [stdout] test first_in_first_out::it_can_dequeue_with_maximum_priority ... ok
[INFO] [stdout] test first_in_first_out::it_can_dequeue_with_minimum_priority ... ok
[INFO] [stdout] test last_in_first_out::it_can_set_the_priority_then_push_and_pop ... ok
[INFO] [stdout] test first_in_first_out::it_can_enqueue_and_dequeue_with_priority ... ok
[INFO] [stdout] test len::it_returns_the_number_of_enqueued_items ... ok
[INFO] [stdout] test first_in_first_out::it_can_set_the_priority_then_enqueue_and_dequeue ... ok
[INFO] [stdout] test min_and_max_priority::it_can_return_the_min_and_max_priority ... ok
[INFO] [stdout] test last_in_first_out::it_can_pop_with_minimum_priority ... ok
[INFO] [stdout] test last_in_first_out::it_can_push_and_pop_with_priority ... ok
[INFO] [stdout] test is_empty::it_returns_true_if_no_items_are_enqueued ... ok
[INFO] [stdout] test nested_bucket_queue::it_can_be_arbitrarily_nested ... ok
[INFO] [stdout] test nested_bucket_queue::it_supports_using_a_bucket_queue_as_a_type_of_bucket ... ok
[INFO] [stdout] test replace::it_can_remove_a_bucket_by_replacing_it_with_none ... ok
[INFO] [stdout] test nested_bucket_queue::it_supports_accessing_nested_buckets_via_deferrals ... ok
[INFO] [stdout] test replace::it_returns_the_bucket_of_replaced_items ... ok
[INFO] [stdout] test replace::it_replaces_a_bucket_in_the_bucket_queue ... ok
[INFO] [stdout] test nested_bucket_queue::it_supports_replacing_nested_buckets_via_deferrals ... ok
[INFO] [stdout] test replace::it_can_replace_a_bucket_that_doesnt_exist_yet ... ok
[INFO] [stdout] test nested_bucket_queue::it_can_replace_arbitrarily_nested_buckets_via_deferrals ... ok
[INFO] [stdout] test deferrals::it_prevents_adding_to_the_bucket_more_than_once ... ok
[INFO] [stdout] test deferrals::it_prevents_removing_from_the_bucket_more_than_once ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bucket_queue
[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 `"docker" "inspect" "2e35f7c7081dd30d4a3d9384da6841d697d08e07c8d89acb9d21f8307d4f0dad"`
[INFO] running `"docker" "rm" "-f" "2e35f7c7081dd30d4a3d9384da6841d697d08e07c8d89acb9d21f8307d4f0dad"`
[INFO] [stdout] 2e35f7c7081dd30d4a3d9384da6841d697d08e07c8d89acb9d21f8307d4f0dad