[INFO] crate hat_trie 0.2.4 is already in cache
[INFO] testing hat_trie-0.2.4 against 1.45.2 for beta-1.46-1
[INFO] extracting crate hat_trie 0.2.4 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate hat_trie 0.2.4 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hat_trie 0.2.4
[INFO] finished tweaking crates.io crate hat_trie 0.2.4
[INFO] tweaked toml for crates.io crate hat_trie 0.2.4 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c7249e1facdd78f4aae5262d57abf1275e2c792c835721076f35190aa2c33a4b
[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" "c7249e1facdd78f4aae5262d57abf1275e2c792c835721076f35190aa2c33a4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7249e1facdd78f4aae5262d57abf1275e2c792c835721076f35190aa2c33a4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7249e1facdd78f4aae5262d57abf1275e2c792c835721076f35190aa2c33a4b", kill_on_drop: false }`
[INFO] [stdout] c7249e1facdd78f4aae5262d57abf1275e2c792c835721076f35190aa2c33a4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ab8acce356d9014b57921be0811d872217b8969dda7734ffc80c3114262aa49
[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" "9ab8acce356d9014b57921be0811d872217b8969dda7734ffc80c3114262aa49", kill_on_drop: false }`
[INFO] [stderr]    Compiling twox-hash v1.5.0
[INFO] [stderr]    Compiling ahtable v0.1.2
[INFO] [stderr]    Compiling hat_trie v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/htrie/dense/mod.rs:195:21
[INFO] [stdout]     |
[INFO] [stdout] 195 |                     std::mem::replace(&mut *self._internal_pointer[k], trie);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/htrie/dense/mod.rs:210:21
[INFO] [stdout]     |
[INFO] [stdout] 210 |                     std::mem::replace(&mut self[key], NodeType::Pure(table));
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.07s
[INFO] running `Command { std: "docker" "inspect" "9ab8acce356d9014b57921be0811d872217b8969dda7734ffc80c3114262aa49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ab8acce356d9014b57921be0811d872217b8969dda7734ffc80c3114262aa49", kill_on_drop: false }`
[INFO] [stdout] 9ab8acce356d9014b57921be0811d872217b8969dda7734ffc80c3114262aa49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2bf344d73772a26224fd935ad9ede017fc94550edb90b23069bb4103af9537e9
[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" "2bf344d73772a26224fd935ad9ede017fc94550edb90b23069bb4103af9537e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling hat_trie v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/htrie/dense/mod.rs:195:21
[INFO] [stdout]     |
[INFO] [stdout] 195 |                     std::mem::replace(&mut *self._internal_pointer[k], trie);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/htrie/dense/mod.rs:210:21
[INFO] [stdout]     |
[INFO] [stdout] 210 |                     std::mem::replace(&mut self[key], NodeType::Pure(table));
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/htrie/dense/mod.rs:195:21
[INFO] [stdout]     |
[INFO] [stdout] 195 |                     std::mem::replace(&mut *self._internal_pointer[k], trie);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/htrie/dense/mod.rs:210:21
[INFO] [stdout]     |
[INFO] [stdout] 210 |                     std::mem::replace(&mut self[key], NodeType::Pure(table));
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.22s
[INFO] running `Command { std: "docker" "inspect" "2bf344d73772a26224fd935ad9ede017fc94550edb90b23069bb4103af9537e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bf344d73772a26224fd935ad9ede017fc94550edb90b23069bb4103af9537e9", kill_on_drop: false }`
[INFO] [stdout] 2bf344d73772a26224fd935ad9ede017fc94550edb90b23069bb4103af9537e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b8a96c1b53c948967cc4335cf09fdae07157fa183cb139321185ce046417029c
[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" "b8a96c1b53c948967cc4335cf09fdae07157fa183cb139321185ce046417029c", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/htrie/dense/mod.rs:195:21
[INFO] [stderr]     |
[INFO] [stderr] 195 |                     std::mem::replace(&mut *self._internal_pointer[k], trie);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/htrie/dense/mod.rs:210:21
[INFO] [stderr]     |
[INFO] [stderr] 210 |                     std::mem::replace(&mut self[key], NodeType::Pure(table));
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/htrie/dense/mod.rs:195:21
[INFO] [stderr]     |
[INFO] [stderr] 195 |                     std::mem::replace(&mut *self._internal_pointer[k], trie);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/htrie/dense/mod.rs:210:21
[INFO] [stderr]     |
[INFO] [stderr] 210 |                     std::mem::replace(&mut self[key], NodeType::Pure(table));
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hat_trie-89d163cde9ac173e
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test htrie::dense::tests::string_dense_trie ... ok
[INFO] [stdout] test htrie::dense::tests::test_longest_prefix ... ok
[INFO] [stdout] test htrie::dense::tests::test_prefix_by_exact_match_str ... ok
[INFO] [stdout] test htrie::dense::tests::test_multi_prefix_with_exact_match ... ok
[INFO] [stdout] test htrie::dense::tests::test_prefix_empty ... ok
[INFO] [stdout] test htrie::dense::tests::test_very_long_query ... ignored
[INFO] [stdout] test htrie::dense::tests::test_prefix ... ok
[INFO] [stdout] test htrie::dense::tests::test_find_half ... ok
[INFO] [stdout] test htrie::dense::tests::i16_dense_trie ... ok
[INFO] [stdout] test htrie::dense::tests::test_hybrid_2_2hybrid_split ... ok
[INFO] [stdout] test htrie::dense::tests::test_hybrid_2_hybridpure_split ... ok
[INFO] [stdout] test htrie::dense::tests::test_hybrid_2_purehybrid_split ... ok
[INFO] [stdout] test htrie::dense::tests::test_pure_2_hybrid_split ... ok
[INFO] [stdout] test htrie::dense::tests::test_layered_trie_prefix ... ok
[INFO] [stdout] test htrie::dense::tests::test_deep_split_spec ... ok
[INFO] [stdout] test htrie::dense::tests::test_hybrid_2_purepure_split ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hat_trie
[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" "b8a96c1b53c948967cc4335cf09fdae07157fa183cb139321185ce046417029c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8a96c1b53c948967cc4335cf09fdae07157fa183cb139321185ce046417029c", kill_on_drop: false }`
[INFO] [stdout] b8a96c1b53c948967cc4335cf09fdae07157fa183cb139321185ce046417029c