[INFO] fetching crate lfu_cache 1.2.1...
[INFO] testing lfu_cache-1.2.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate lfu_cache 1.2.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate lfu_cache 1.2.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lfu_cache 1.2.1
[INFO] finished tweaking crates.io crate lfu_cache 1.2.1
[INFO] tweaked toml for crates.io crate lfu_cache 1.2.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 07a107d5950931911bab5071073c967973ddc758ea8e6ed4a8049edd7986f093
[INFO] running `Command { std: "docker" "start" "-a" "07a107d5950931911bab5071073c967973ddc758ea8e6ed4a8049edd7986f093", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07a107d5950931911bab5071073c967973ddc758ea8e6ed4a8049edd7986f093", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07a107d5950931911bab5071073c967973ddc758ea8e6ed4a8049edd7986f093", kill_on_drop: false }`
[INFO] [stdout] 07a107d5950931911bab5071073c967973ddc758ea8e6ed4a8049edd7986f093
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07d451e96d443f8db487ac7db4eae3022c786c3796cd7fd0faab7600cd7d4886
[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" "07d451e96d443f8db487ac7db4eae3022c786c3796cd7fd0faab7600cd7d4886", kill_on_drop: false }`
[INFO] [stderr]    Compiling lfu_cache v1.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "07d451e96d443f8db487ac7db4eae3022c786c3796cd7fd0faab7600cd7d4886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07d451e96d443f8db487ac7db4eae3022c786c3796cd7fd0faab7600cd7d4886", kill_on_drop: false }`
[INFO] [stdout] 07d451e96d443f8db487ac7db4eae3022c786c3796cd7fd0faab7600cd7d4886
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d855c82d9396bef722c9b0655bb2219dea4f99f0026f93381d1ec2bd5fcbbd70
[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" "d855c82d9396bef722c9b0655bb2219dea4f99f0026f93381d1ec2bd5fcbbd70", kill_on_drop: false }`
[INFO] [stderr]    Compiling lfu_cache v1.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `Command { std: "docker" "inspect" "d855c82d9396bef722c9b0655bb2219dea4f99f0026f93381d1ec2bd5fcbbd70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d855c82d9396bef722c9b0655bb2219dea4f99f0026f93381d1ec2bd5fcbbd70", kill_on_drop: false }`
[INFO] [stdout] d855c82d9396bef722c9b0655bb2219dea4f99f0026f93381d1ec2bd5fcbbd70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] c689316486abd6421d9c544d284179c463c46a248cc6574be93ef502d2d37088
[INFO] running `Command { std: "docker" "start" "-a" "c689316486abd6421d9c544d284179c463c46a248cc6574be93ef502d2d37088", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lfu_cache-f4ec1b7c171fbe8e)
[INFO] [stdout] 
[INFO] [stdout] running 37 tests
[INFO] [stdout] test lfu::bookkeeping::capacity_reports_internal_capacity ... ok
[INFO] [stdout] test lfu::entry::new_constructs_dangling_entry_with_owner ... ok
[INFO] [stdout] test lfu::bookkeeping::freq_list_node_merges ... ok
[INFO] [stdout] test lfu::frequency_list::init_front_empty ... ok
[INFO] [stdout] test lfu::bookkeeping::getting_one_element_has_constant_freq_list_size ... ok
[INFO] [stdout] test lfu::frequency_list::init_front_non_empty ... ok
[INFO] [stdout] test lfu::node::append_non_empty ... ok
[INFO] [stdout] test lfu::insert::reinsertion_of_same_key_resets_freq ... ok
[INFO] [stdout] test lfu::node::create_increment_next_empty ... ok
[INFO] [stdout] test lfu::insert::insert_unbounded ... ok
[INFO] [stdout] test lfu::bookkeeping::clear_is_ok ... ok
[INFO] [stdout] test lfu::node::append_empty ... ok
[INFO] [stdout] test lfu::insert::insert_returns_evicted ... ok
[INFO] [stdout] test lfu::node::peek_empty ... ok
[INFO] [stdout] test lfu::node::create_increment_next_non_empty ... ok
[INFO] [stdout] test lfu::node::peek_non_empty ... ok
[INFO] [stdout] test lfu::get::bounded_alternating_values ... ok
[INFO] [stdout] test lfu::bookkeeping::unbounded_is_unbounded ... ok
[INFO] [stdout] test lfu::get::get_mut ... ok
[INFO] [stdout] test lfu::get::getting_is_ok_after_adding_other_value ... ok
[INFO] [stdout] test lfu::node::pop_empty ... ok
[INFO] [stdout] test lfu::remove::remove_to_empty ... ok
[INFO] [stdout] test lfu::frequency_list::new_is_empty ... ok
[INFO] [stdout] test lfu::bookkeeping::freq_list_multi_items ... ok
[INFO] [stdout] test lfu::remove::remove_middle ... ok
[INFO] [stdout] test lfu::remove::remove_empty ... ok
[INFO] [stdout] test lfu::remove::remove_end ... ok
[INFO] [stdout] test lfu::remove::remove_to_nonempty ... ok
[INFO] [stdout] test lfu::pop::pop_empty ... ok
[INFO] [stdout] test lfu::remove::remove_start ... ok
[INFO] [stdout] test lfu::node::pop_non_empty ... ok
[INFO] [stdout] test lfu::node::pop_single ... ok
[INFO] [stdout] test lfu::insert::insert_bounded ... ok
[INFO] [stdout] test lfu::get::empty ... ok
[INFO] [stdout] test lfu::pop::pop ... ok
[INFO] [stdout] test timed_lfu::timed::non_expired_remains ... ok
[INFO] [stderr]    Doc-tests lfu_cache
[INFO] [stdout] test timed_lfu::timed::old_items_are_evicted ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 37 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.51s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lfu.rs - lfu::LfuCache<Key, Value>::with_capacity (line 50) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.68s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c689316486abd6421d9c544d284179c463c46a248cc6574be93ef502d2d37088", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c689316486abd6421d9c544d284179c463c46a248cc6574be93ef502d2d37088", kill_on_drop: false }`
[INFO] [stdout] c689316486abd6421d9c544d284179c463c46a248cc6574be93ef502d2d37088