[INFO] crate raft-consensus 0.4.0 is already in cache
[INFO] extracting crate raft-consensus 0.4.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/raft-consensus/0.4.0
[INFO] extracting crate raft-consensus 0.4.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/raft-consensus/0.4.0
[INFO] validating manifest of raft-consensus-0.4.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of raft-consensus-0.4.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing raft-consensus-0.4.0
[INFO] finished frobbing raft-consensus-0.4.0
[INFO] frobbed toml for raft-consensus-0.4.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/raft-consensus/0.4.0/Cargo.toml
[INFO] started frobbing raft-consensus-0.4.0
[INFO] finished frobbing raft-consensus-0.4.0
[INFO] frobbed toml for raft-consensus-0.4.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/raft-consensus/0.4.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing raft-consensus-0.4.0 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/raft-consensus/0.4.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] b5e67280cd9bd3d983b35e032738f1d5bfdcd852dc0b261f39bf62bc43eb9e15
[INFO] running `"docker" "start" "-a" "b5e67280cd9bd3d983b35e032738f1d5bfdcd852dc0b261f39bf62bc43eb9e15"`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling raft-consensus v0.4.0 (/opt/crater/workdir)
[INFO] [stderr]    Compiling uuid v0.5.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.19s
[INFO] running `"docker" "inspect" "b5e67280cd9bd3d983b35e032738f1d5bfdcd852dc0b261f39bf62bc43eb9e15"`
[INFO] running `"docker" "rm" "-f" "b5e67280cd9bd3d983b35e032738f1d5bfdcd852dc0b261f39bf62bc43eb9e15"`
[INFO] [stdout] b5e67280cd9bd3d983b35e032738f1d5bfdcd852dc0b261f39bf62bc43eb9e15
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/raft-consensus/0.4.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0ec44fb50e0382c45c43b47fc8d4ecbbe315d4a55aff5953f6baa56f8ab6dc44
[INFO] running `"docker" "start" "-a" "0ec44fb50e0382c45c43b47fc8d4ecbbe315d4a55aff5953f6baa56f8ab6dc44"`
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling pretty_env_logger v0.2.5
[INFO] [stderr]    Compiling raft-consensus v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/consensus.rs:1112:24
[INFO] [stderr]      |
[INFO] [stderr] 1112 |             for (peer, mut consensus) in self.peers.iter_mut() {
[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/consensus.rs:1119:21
[INFO] [stderr]      |
[INFO] [stderr] 1119 |                 let mut entry = timeouts.entry(peer.clone()).or_insert(HashSet::new());
[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/consensus.rs:1132:21
[INFO] [stderr]      |
[INFO] [stderr] 1132 |                 let mut peer_consensus = self.peers.get_mut(&to).unwrap();
[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/consensus.rs:1141:21
[INFO] [stderr]      |
[INFO] [stderr] 1141 |                 let mut entry = timeouts
[INFO] [stderr]      |                     ----^^^^^
[INFO] [stderr]      |                     |
[INFO] [stderr]      |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.47s
[INFO] running `"docker" "inspect" "0ec44fb50e0382c45c43b47fc8d4ecbbe315d4a55aff5953f6baa56f8ab6dc44"`
[INFO] running `"docker" "rm" "-f" "0ec44fb50e0382c45c43b47fc8d4ecbbe315d4a55aff5953f6baa56f8ab6dc44"`
[INFO] [stdout] 0ec44fb50e0382c45c43b47fc8d4ecbbe315d4a55aff5953f6baa56f8ab6dc44
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/raft-consensus/0.4.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 45bceb92b5c87f2be3131c7ae36816928c4589e970327eec4dcba3b8940eea00
[INFO] running `"docker" "start" "-a" "45bceb92b5c87f2be3131c7ae36816928c4589e970327eec4dcba3b8940eea00"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/raft_consensus-bd8601def7f800be
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test consensus::test::test_append_reorder ... ok
[INFO] [stdout] test consensus::test::test_solitary_consensus_transition_to_leader ... ok
[INFO] [stdout] test consensus::test::test_heartbeat ... ok
[INFO] [stdout] test persistent_log::fs::test::test_append_entries ... ok
[INFO] [stdout] test consensus::test::test_majority ... ok
[INFO] [stdout] test consensus::test::test_election ... ok
[INFO] [stdout] test persistent_log::mem::test::test_voted_for ... ok
[INFO] [stdout] test consensus::test::test_slow_heartbeat ... ok
[INFO] [stdout] test persistent_log::fs::test::test_restore_log ... ok
[INFO] [stdout] test persistent_log::fs::test::test_voted_for ... ok
[INFO] [stdout] test consensus::test::test_proposal ... ok
[INFO] [stdout] test persistent_log::mem::test::test_current_term ... ok
[INFO] [stdout] test persistent_log::mem::test::test_append_entries ... ok
[INFO] [stdout] test state::tests::test_count_match_indexes ... ok
[INFO] [stdout] test persistent_log::fs::test::test_current_term ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests raft-consensus
[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" "45bceb92b5c87f2be3131c7ae36816928c4589e970327eec4dcba3b8940eea00"`
[INFO] running `"docker" "rm" "-f" "45bceb92b5c87f2be3131c7ae36816928c4589e970327eec4dcba3b8940eea00"`
[INFO] [stdout] 45bceb92b5c87f2be3131c7ae36816928c4589e970327eec4dcba3b8940eea00