[INFO] fetching crate holyhashmap 0.1.2...
[INFO] testing holyhashmap-0.1.2 against 1.47.0 for beta-1.48-1
[INFO] extracting crate holyhashmap 0.1.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate holyhashmap 0.1.2 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate holyhashmap 0.1.2
[INFO] finished tweaking crates.io crate holyhashmap 0.1.2
[INFO] tweaked toml for crates.io crate holyhashmap 0.1.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] 1aa63e90b4ad3db4b6c2979a1374d83d085bb83485dd9ac43e505923c3f1c260
[INFO] running `Command { std: "docker" "start" "-a" "1aa63e90b4ad3db4b6c2979a1374d83d085bb83485dd9ac43e505923c3f1c260", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1aa63e90b4ad3db4b6c2979a1374d83d085bb83485dd9ac43e505923c3f1c260", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1aa63e90b4ad3db4b6c2979a1374d83d085bb83485dd9ac43e505923c3f1c260", kill_on_drop: false }`
[INFO] [stdout] 1aa63e90b4ad3db4b6c2979a1374d83d085bb83485dd9ac43e505923c3f1c260
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 648a4780dc3b656e3fc32fcd1b2d2c2d2e08ce6e1e6dff5c2a5ea4abdb340e0a
[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" "648a4780dc3b656e3fc32fcd1b2d2c2d2e08ce6e1e6dff5c2a5ea4abdb340e0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling holyhashmap v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:676:21
[INFO] [stdout]     |
[INFO] [stdout] 676 |                 let mut candidate = &mut self.buckets[index];
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "648a4780dc3b656e3fc32fcd1b2d2c2d2e08ce6e1e6dff5c2a5ea4abdb340e0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "648a4780dc3b656e3fc32fcd1b2d2c2d2e08ce6e1e6dff5c2a5ea4abdb340e0a", kill_on_drop: false }`
[INFO] [stdout] 648a4780dc3b656e3fc32fcd1b2d2c2d2e08ce6e1e6dff5c2a5ea4abdb340e0a
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1863e3c88b6f8d81354bfc5017eef7cc33b85f084b5c2ddb1893d7c4e4328f8d
[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" "1863e3c88b6f8d81354bfc5017eef7cc33b85f084b5c2ddb1893d7c4e4328f8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:676:21
[INFO] [stdout]     |
[INFO] [stdout] 676 |                 let mut candidate = &mut self.buckets[index];
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling quickcheck v0.8.5
[INFO] [stderr]    Compiling holyhashmap v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:676:21
[INFO] [stdout]     |
[INFO] [stdout] 676 |                 let mut candidate = &mut self.buckets[index];
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.63s
[INFO] running `Command { std: "docker" "inspect" "1863e3c88b6f8d81354bfc5017eef7cc33b85f084b5c2ddb1893d7c4e4328f8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1863e3c88b6f8d81354bfc5017eef7cc33b85f084b5c2ddb1893d7c4e4328f8d", kill_on_drop: false }`
[INFO] [stdout] 1863e3c88b6f8d81354bfc5017eef7cc33b85f084b5c2ddb1893d7c4e4328f8d
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 07fb2293d887b164aa1626edbcb02e11c619150e87836219f3b9aa3a053e4738
[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" "07fb2293d887b164aa1626edbcb02e11c619150e87836219f3b9aa3a053e4738", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:676:21
[INFO] [stderr]     |
[INFO] [stderr] 676 |                 let mut candidate = &mut self.buckets[index];
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:676:21
[INFO] [stderr]     |
[INFO] [stderr] 676 |                 let mut candidate = &mut self.buckets[index];
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/holyhashmap-9cfd7b924db91eb5
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test test::test_empty_remove ... ok
[INFO] [stdout] test test::test_create_capacity_zero ... ok
[INFO] [stdout] test test::test_entry ... ok
[INFO] [stdout] test test::test_empty_entry ... ok
[INFO] [stdout] test test::test_extend_ref ... ok
[INFO] [stdout] test test::test_iter_len ... ok
[INFO] [stdout] test test::test_find ... ok
[INFO] [stdout] test test::test_insert ... ok
[INFO] [stdout] test test::test_indices ... ok
[INFO] [stdout] test test::test_iterate ... ok
[INFO] [stdout] test test::test_empty_iter ... ok
[INFO] [stdout] test test::test_index ... ok
[INFO] [stdout] test test::test_entry_index ... ok
[INFO] [stdout] test test::test_occupied_entry_key ... ok
[INFO] [stdout] test test::test_remove_index ... ok
[INFO] [stdout] test test::test_size_hint ... ok
[INFO] [stdout] test test::test_clone ... ok
[INFO] [stdout] test test::test_zero_capacities ... ok
[INFO] [stdout] test test::test_vacant_entry_key ... ok
[INFO] [stdout] test test::test_capacity_not_less_than_len ... ok
[INFO] [stdout] test test::test_into_iter_drops ... ok
[INFO] [stdout] test test::test_from_iter ... ok
[INFO] [stdout] test test::test_drops ... ok
[INFO] [stdout] test test::test_index_nonexistent ... ok
[INFO] [stdout] test test::test_lots_of_insertions ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 25 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/quickcheck-b7d4f9ce185420af
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test contains ... ok
[INFO] [stdout] test contains_not ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests holyhashmap
[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" "07fb2293d887b164aa1626edbcb02e11c619150e87836219f3b9aa3a053e4738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07fb2293d887b164aa1626edbcb02e11c619150e87836219f3b9aa3a053e4738", kill_on_drop: false }`
[INFO] [stdout] 07fb2293d887b164aa1626edbcb02e11c619150e87836219f3b9aa3a053e4738
