[INFO] fetching crate holyhashmap 0.1.2...
[INFO] testing holyhashmap-0.1.2 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate holyhashmap 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate holyhashmap 0.1.2 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 713e8063c59f22eb7f9aea1c0c2c4b60e2105ece0135c0f23d20ba375b56f9e7
[INFO] running `"docker" "start" "-a" "713e8063c59f22eb7f9aea1c0c2c4b60e2105ece0135c0f23d20ba375b56f9e7"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling holyhashmap v0.1.2 (/opt/rustwide/workdir)
[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 dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "713e8063c59f22eb7f9aea1c0c2c4b60e2105ece0135c0f23d20ba375b56f9e7"`
[INFO] running `"docker" "rm" "-f" "713e8063c59f22eb7f9aea1c0c2c4b60e2105ece0135c0f23d20ba375b56f9e7"`
[INFO] [stdout] 713e8063c59f22eb7f9aea1c0c2c4b60e2105ece0135c0f23d20ba375b56f9e7
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e6187c0e57f36f29b0b0d31799d9b5bea9a90d2d0e65850db02e2c372049c09d
[INFO] running `"docker" "start" "-a" "e6187c0e57f36f29b0b0d31799d9b5bea9a90d2d0e65850db02e2c372049c09d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[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]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha 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] [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 13.37s
[INFO] running `"docker" "inspect" "e6187c0e57f36f29b0b0d31799d9b5bea9a90d2d0e65850db02e2c372049c09d"`
[INFO] running `"docker" "rm" "-f" "e6187c0e57f36f29b0b0d31799d9b5bea9a90d2d0e65850db02e2c372049c09d"`
[INFO] [stdout] e6187c0e57f36f29b0b0d31799d9b5bea9a90d2d0e65850db02e2c372049c09d
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7f9bc8483ceafc42534c1f644c42e5494dc0f5df9d38c1af57e8458920bcae61
[INFO] running `"docker" "start" "-a" "7f9bc8483ceafc42534c1f644c42e5494dc0f5df9d38c1af57e8458920bcae61"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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-f102fbdde4040b03
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test test::test_clone ... ok
[INFO] [stdout] test test::test_empty_remove ... ok
[INFO] [stdout] test test::test_from_iter ... ok
[INFO] [stdout] test test::test_entry ... ok
[INFO] [stdout] test test::test_index ... ok
[INFO] [stdout] test test::test_empty_iter ... ok
[INFO] [stdout] test test::test_empty_entry ... ok
[INFO] [stdout] test test::test_create_capacity_zero ... ok
[INFO] [stdout] test test::test_indices ... ok
[INFO] [stdout] test test::test_entry_index ... ok
[INFO] [stdout] test test::test_find ... ok
[INFO] [stdout] test test::test_extend_ref ... ok
[INFO] [stdout] test test::test_insert ... ok
[INFO] [stdout] test test::test_size_hint ... ok
[INFO] [stdout] test test::test_vacant_entry_key ... ok
[INFO] [stdout] test test::test_iterate ... ok
[INFO] [stdout] test test::test_zero_capacities ... ok
[INFO] [stdout] test test::test_into_iter_drops ... ok
[INFO] [stdout] test test::test_occupied_entry_key ... ok
[INFO] [stdout] test test::test_iter_len ... ok
[INFO] [stdout] test test::test_remove_index ... ok
[INFO] [stdout] test test::test_capacity_not_less_than_len ... 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-93361742ff2246ff
[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 `"docker" "inspect" "7f9bc8483ceafc42534c1f644c42e5494dc0f5df9d38c1af57e8458920bcae61"`
[INFO] running `"docker" "rm" "-f" "7f9bc8483ceafc42534c1f644c42e5494dc0f5df9d38c1af57e8458920bcae61"`
[INFO] [stdout] 7f9bc8483ceafc42534c1f644c42e5494dc0f5df9d38c1af57e8458920bcae61