[INFO] fetching crate hash-rings 1.1.0...
[INFO] testing hash-rings-1.1.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate hash-rings 1.1.0 into /workspace/builds/worker-46/source
[INFO] validating manifest of crates.io crate hash-rings 1.1.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hash-rings 1.1.0
[INFO] finished tweaking crates.io crate hash-rings 1.1.0
[INFO] tweaked toml for crates.io crate hash-rings 1.1.0 written to /workspace/builds/worker-46/source/Cargo.toml
[INFO] crate crates.io crate hash-rings 1.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--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-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3d7af56c6a8c5a8acc785891a3891df846b2a034dbeb14e6c5a97c9688d90c9
[INFO] running `Command { std: "docker" "start" "-a" "a3d7af56c6a8c5a8acc785891a3891df846b2a034dbeb14e6c5a97c9688d90c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3d7af56c6a8c5a8acc785891a3891df846b2a034dbeb14e6c5a97c9688d90c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3d7af56c6a8c5a8acc785891a3891df846b2a034dbeb14e6c5a97c9688d90c9", kill_on_drop: false }`
[INFO] [stdout] a3d7af56c6a8c5a8acc785891a3891df846b2a034dbeb14e6c5a97c9688d90c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a69ef191f19ee50664ddc1cf76d1812430eccf4872f2c8f8d3a02c23fc78a1a0
[INFO] running `Command { std: "docker" "start" "-a" "a69ef191f19ee50664ddc1cf76d1812430eccf4872f2c8f8d3a02c23fc78a1a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling hamming v0.1.3
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling smallvec v0.6.10
[INFO] [stderr]    Compiling primal-estimate v0.2.1
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling primal-bit v0.2.4
[INFO] [stderr]    Compiling primal-sieve v0.2.9
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling primal-check v0.2.3
[INFO] [stderr]    Compiling primal v0.2.3
[INFO] [stderr]    Compiling hash-rings v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/maglev.rs:207:17
[INFO] [stdout]     |
[INFO] [stdout] 207 |     type Item = (&'a T);
[INFO] [stdout]     |                 ^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/mpc.rs:269:17
[INFO] [stdout]     |
[INFO] [stdout] 269 |     type Item = (&'a T);
[INFO] [stdout]     |                 ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.14s
[INFO] running `Command { std: "docker" "inspect" "a69ef191f19ee50664ddc1cf76d1812430eccf4872f2c8f8d3a02c23fc78a1a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a69ef191f19ee50664ddc1cf76d1812430eccf4872f2c8f8d3a02c23fc78a1a0", kill_on_drop: false }`
[INFO] [stdout] a69ef191f19ee50664ddc1cf76d1812430eccf4872f2c8f8d3a02c23fc78a1a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e200f76c9769d898694f16eb8c81f410e238ab8dbd51917e9d3da00d27220544
[INFO] running `Command { std: "docker" "start" "-a" "e200f76c9769d898694f16eb8c81f410e238ab8dbd51917e9d3da00d27220544", kill_on_drop: false }`
[INFO] [stderr]    Compiling hash-rings v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/maglev.rs:207:17
[INFO] [stdout]     |
[INFO] [stdout] 207 |     type Item = (&'a T);
[INFO] [stdout]     |                 ^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/mpc.rs:269:17
[INFO] [stdout]     |
[INFO] [stdout] 269 |     type Item = (&'a T);
[INFO] [stdout]     |                 ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/maglev.rs:207:17
[INFO] [stdout]     |
[INFO] [stdout] 207 |     type Item = (&'a T);
[INFO] [stdout]     |                 ^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/mpc.rs:269:17
[INFO] [stdout]     |
[INFO] [stdout] 269 |     type Item = (&'a T);
[INFO] [stdout]     |                 ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/consistent.rs:734:13
[INFO] [stdout]     |
[INFO] [stdout] 734 |         let mut client: Client<'_, u32, u32, BuildDefaultHasher> = Client::default();
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/rendezvous.rs:689:13
[INFO] [stdout]     |
[INFO] [stdout] 689 |         let mut client: Client<'_, u32, u32, BuildDefaultHasher> = Client::default();
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/weighted_rendezvous.rs:675:13
[INFO] [stdout]     |
[INFO] [stdout] 675 |         let mut client: Client<'_, u32, u32, BuildDefaultHasher> = Client::default();
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.60s
[INFO] running `Command { std: "docker" "inspect" "e200f76c9769d898694f16eb8c81f410e238ab8dbd51917e9d3da00d27220544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e200f76c9769d898694f16eb8c81f410e238ab8dbd51917e9d3da00d27220544", kill_on_drop: false }`
[INFO] [stdout] e200f76c9769d898694f16eb8c81f410e238ab8dbd51917e9d3da00d27220544
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5fa7e207f118888d7329062ccf8c92d596b1f420243b00233167a15cdbced6fd
[INFO] running `Command { std: "docker" "start" "-a" "5fa7e207f118888d7329062ccf8c92d596b1f420243b00233167a15cdbced6fd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/maglev.rs:207:17
[INFO] [stderr]     |
[INFO] [stderr] 207 |     type Item = (&'a T);
[INFO] [stderr]     |                 ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/mpc.rs:269:17
[INFO] [stderr]     |
[INFO] [stderr] 269 |     type Item = (&'a T);
[INFO] [stderr]     |                 ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/maglev.rs:207:17
[INFO] [stderr]     |
[INFO] [stderr] 207 |     type Item = (&'a T);
[INFO] [stderr]     |                 ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/mpc.rs:269:17
[INFO] [stderr]     |
[INFO] [stderr] 269 |     type Item = (&'a T);
[INFO] [stderr]     |                 ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/consistent.rs:734:13
[INFO] [stderr]     |
[INFO] [stderr] 734 |         let mut client: Client<'_, u32, u32, BuildDefaultHasher> = Client::default();
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/rendezvous.rs:689:13
[INFO] [stderr]     |
[INFO] [stderr] 689 |         let mut client: Client<'_, u32, u32, BuildDefaultHasher> = Client::default();
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/weighted_rendezvous.rs:675:13
[INFO] [stderr]     |
[INFO] [stderr] 675 |         let mut client: Client<'_, u32, u32, BuildDefaultHasher> = Client::default();
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hash_rings-e34e7f16006b5b2e)
[INFO] [stdout] 
[INFO] [stdout] running 63 tests
[INFO] [stdout] test carp::tests::test_get_node ... ok
[INFO] [stdout] test carp::tests::test_insert_node ... ok
[INFO] [stdout] test carp::tests::test_insert_node_replace ... ok
[INFO] [stdout] test carp::tests::test_correct_weights ... ok
[INFO] [stdout] test carp::tests::test_iter ... ok
[INFO] [stdout] test carp::tests::test_new_replace ... ok
[INFO] [stdout] test carp::tests::test_remove_node ... ok
[INFO] [stdout] test carp::tests::test_size_empty ... ok
[INFO] [stdout] test consistent::tests::test_get_node ... ok
[INFO] [stdout] test consistent::tests::test_insert_node_same_node ... ok
[INFO] [stdout] test consistent::tests::test_insert_node_share_node ... ok
[INFO] [stdout] test consistent::tests::test_insert_point ... ok
[INFO] [stdout] test consistent::tests::test_iter ... ok
[INFO] [stdout] test consistent::tests::test_remove_node ... ok
[INFO] [stdout] test consistent::tests::test_remove_point ... ok
[INFO] [stdout] test consistent::tests::test_size_empty ... ok
[INFO] [stdout] test jump::tests::test_get_node ... ok
[INFO] [stdout] test jump::tests::test_nodes ... ok
[INFO] [stdout] test maglev::tests::test_capacity ... ok
[INFO] [stdout] test maglev::tests::test_iter ... ok
[INFO] [stdout] test maglev::tests::test_get_node ... ok
[INFO] [stdout] test mpc::tests::test_get_node ... ok
[INFO] [stdout] test mpc::tests::test_is_empty ... ok
[INFO] [stdout] test maglev::tests::test_nodes ... ok
[INFO] [stdout] test mpc::tests::test_iter ... ok
[INFO] [stdout] test rendezvous::tests::test_get_node ... ok
[INFO] [stdout] test rendezvous::tests::test_insert_node ... ok
[INFO] [stdout] test rendezvous::tests::test_insert_point ... ok
[INFO] [stdout] test rendezvous::tests::test_iter ... ok
[INFO] [stdout] test rendezvous::tests::test_ring_iter ... ok
[INFO] [stdout] test rendezvous::tests::test_remove_node ... ok
[INFO] [stdout] test rendezvous::tests::test_remove_point ... ok
[INFO] [stdout] test rendezvous::tests::test_ring_len ... ok
[INFO] [stdout] test rendezvous::tests::test_size_empty ... ok
[INFO] [stdout] test mpc::tests::test_len ... ok
[INFO] [stdout] test weighted_rendezvous::tests::test_get_node ... ok
[INFO] [stdout] test weighted_rendezvous::tests::test_insert_node ... ok
[INFO] [stdout] test weighted_rendezvous::tests::test_insert_point ... ok
[INFO] [stdout] test weighted_rendezvous::tests::test_iter ... ok
[INFO] [stdout] test weighted_rendezvous::tests::test_remove_node ... ok
[INFO] [stdout] test weighted_rendezvous::tests::test_remove_point ... ok
[INFO] [stdout] test weighted_rendezvous::tests::test_ring_iter ... ok
[INFO] [stdout] test weighted_rendezvous::tests::test_ring_len ... ok
[INFO] [stdout] test weighted_rendezvous::tests::test_size_empty ... ok
[INFO] [stdout] test consistent::tests::test_panic_get_node_empty_client - should panic ... ok
[INFO] [stdout] test consistent::tests::test_panic_insert_point_empty_client - should panic ... ok
[INFO] [stdout] test consistent::tests::test_panic_remove_node_empty_client - should panic ... ok
[INFO] [stdout] test consistent::tests::test_panic_remove_node_non_existent_node - should panic ... ok
[INFO] [stdout] test jump::tests::test_new_zero_nodes - should panic ... ok
[INFO] [stdout] test consistent::tests::test_panic_remove_point_empty_client - should panic ... ok
[INFO] [stdout] test maglev::tests::test_new_empty - should panic ... ok
[INFO] [stdout] test mpc::tests::test_get_node_empty_ring - should panic ... ok
[INFO] [stdout] test mpc::tests::test_new_zero_hash_count - should panic ... ok
[INFO] [stdout] test rendezvous::tests::test_panic_get_node_empty_client - should panic ... ok
[INFO] [stdout] test rendezvous::tests::test_panic_insert_point_empty_client - should panic ... ok
[INFO] [stdout] test rendezvous::tests::test_panic_remove_node_empty_client - should panic ... ok
[INFO] [stdout] test rendezvous::tests::test_panic_remove_node_non_existent_node - should panic ... ok
[INFO] [stdout] test rendezvous::tests::test_panic_remove_point_empty_client - should panic ... ok
[INFO] [stdout] test weighted_rendezvous::tests::test_panic_get_node_empty_client - should panic ... ok
[INFO] [stdout] test weighted_rendezvous::tests::test_panic_remove_node_empty_client - should panic ... ok
[INFO] [stdout] test weighted_rendezvous::tests::test_panic_remove_node_non_existent_node - should panic ... ok
[INFO] [stdout] test weighted_rendezvous::tests::test_panic_insert_point_empty_client - should panic ... ok
[INFO] [stdout] test weighted_rendezvous::tests::test_panic_remove_point_empty_client - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 63 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bench-e90cbbae1a3f860c)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hash-rings
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> /opt/rustwide/workdir/src/maglev.rs:207:17
[INFO] [stderr]     |
[INFO] [stderr] 207 |     type Item = (&'a T);
[INFO] [stderr]     |                 ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> /opt/rustwide/workdir/src/mpc.rs:269:17
[INFO] [stderr]     |
[INFO] [stderr] 269 |     type Item = (&'a T);
[INFO] [stderr]     |                 ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] running 97 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name hash_rings --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern hash_rings=/opt/rustwide/target/debug/deps/libhash_rings-449fe6b7bc7fb641.rlib --extern primal=/opt/rustwide/target/debug/deps/libprimal-c6530897645ba94d.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-f854e467f873528f.rlib --extern siphasher=/opt/rustwide/target/debug/deps/libsiphasher-cafbb31788f4725d.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "5fa7e207f118888d7329062ccf8c92d596b1f420243b00233167a15cdbced6fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fa7e207f118888d7329062ccf8c92d596b1f420243b00233167a15cdbced6fd", kill_on_drop: false }`
[INFO] [stdout] 5fa7e207f118888d7329062ccf8c92d596b1f420243b00233167a15cdbced6fd
