Dec 19 18:20:41.949 INFO checking dat2/rust-raft against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 18:20:41.949 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/dat2/rust-raft:/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=forbid" "-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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 18:20:42.369 INFO [stdout] 9243e12225d1b5901e487d9650eb231becc93f202e1649f04eb32160a720ca10
Dec 19 18:20:42.372 INFO running `"docker" "start" "-a" "9243e12225d1b5901e487d9650eb231becc93f202e1649f04eb32160a720ca10"`
Dec 19 18:20:43.872 INFO [stderr]     Checking serde v1.0.4
Dec 19 18:20:43.878 INFO [stderr]     Checking net2 v0.2.29
Dec 19 18:20:43.896 INFO [stderr]     Checking bytes v0.4.3
Dec 19 18:20:43.896 INFO [stderr]     Checking backtrace-sys v0.1.10
Dec 19 18:20:43.896 INFO [stderr]    Compiling serde_derive v1.0.4
Dec 19 18:20:43.896 INFO [stderr]     Checking env_logger v0.4.1
Dec 19 18:20:44.524 INFO [stderr]     Checking backtrace v0.3.0
Dec 19 18:20:45.544 INFO [stderr]     Checking error-chain v0.7.2
Dec 19 18:20:45.844 INFO [stderr]     Checking mio v0.6.7
Dec 19 18:20:47.233 INFO [stderr]     Checking tokio-io v0.1.1
Dec 19 18:20:48.806 INFO [stderr]     Checking tokio-core v0.1.7
Dec 19 18:20:50.949 INFO [stderr]     Checking tokio-proto v0.1.1
Dec 19 18:20:56.024 INFO [stderr]     Checking bincode v0.8.0
Dec 19 18:20:56.636 INFO [stderr]     Checking raft v0.1.0 (/opt/crater/workdir)
Dec 19 18:20:57.096 INFO [stderr] warning: unused import: `std::str`
Dec 19 18:20:57.097 INFO [stderr]  --> src/server.rs:4:5
Dec 19 18:20:57.097 INFO [stderr]   |
Dec 19 18:20:57.097 INFO [stderr] 4 | use std::str;
Dec 19 18:20:57.097 INFO [stderr]   |     ^^^^^^^^
Dec 19 18:20:57.097 INFO [stderr]   |
Dec 19 18:20:57.097 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 18:20:57.097 INFO [stderr] 
Dec 19 18:20:57.097 INFO [stderr] warning: unused import: `UnboundedReceiver`
Dec 19 18:20:57.097 INFO [stderr]   --> src/server.rs:13:55
Dec 19 18:20:57.097 INFO [stderr]    |
Dec 19 18:20:57.097 INFO [stderr] 13 | use futures::sync::mpsc::{unbounded, UnboundedSender, UnboundedReceiver};
Dec 19 18:20:57.106 INFO [stderr]    |                                                       ^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.106 INFO [stderr] 
Dec 19 18:20:57.106 INFO [stderr] warning: unused import: `std::str`
Dec 19 18:20:57.106 INFO [stderr]  --> src/client.rs:4:5
Dec 19 18:20:57.106 INFO [stderr]   |
Dec 19 18:20:57.106 INFO [stderr] 4 | use std::str;
Dec 19 18:20:57.106 INFO [stderr]   |     ^^^^^^^^
Dec 19 18:20:57.106 INFO [stderr] 
Dec 19 18:20:57.216 INFO [stderr] warning: unused import: `std::str`
Dec 19 18:20:57.216 INFO [stderr]  --> src/server.rs:4:5
Dec 19 18:20:57.216 INFO [stderr]   |
Dec 19 18:20:57.216 INFO [stderr] 4 | use std::str;
Dec 19 18:20:57.216 INFO [stderr]   |     ^^^^^^^^
Dec 19 18:20:57.216 INFO [stderr]   |
Dec 19 18:20:57.216 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 18:20:57.216 INFO [stderr] 
Dec 19 18:20:57.216 INFO [stderr] warning: unused import: `UnboundedReceiver`
Dec 19 18:20:57.216 INFO [stderr]   --> src/server.rs:13:55
Dec 19 18:20:57.216 INFO [stderr]    |
Dec 19 18:20:57.216 INFO [stderr] 13 | use futures::sync::mpsc::{unbounded, UnboundedSender, UnboundedReceiver};
Dec 19 18:20:57.216 INFO [stderr]    |                                                       ^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.216 INFO [stderr] 
Dec 19 18:20:57.216 INFO [stderr] warning: unused import: `std::str`
Dec 19 18:20:57.216 INFO [stderr]  --> src/client.rs:4:5
Dec 19 18:20:57.216 INFO [stderr]   |
Dec 19 18:20:57.216 INFO [stderr] 4 | use std::str;
Dec 19 18:20:57.216 INFO [stderr]   |     ^^^^^^^^
Dec 19 18:20:57.216 INFO [stderr] 
Dec 19 18:20:57.372 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 19 18:20:57.372 INFO [stderr]   --> src/errors.rs:1:1
Dec 19 18:20:57.372 INFO [stderr]    |
Dec 19 18:20:57.372 INFO [stderr] 1  | / error_chain! {
Dec 19 18:20:57.372 INFO [stderr] 2  | |
Dec 19 18:20:57.372 INFO [stderr] 3  | |   types {
Dec 19 18:20:57.372 INFO [stderr] 4  | |     Error, ErrorKind, ResultExt, Result;
Dec 19 18:20:57.372 INFO [stderr] ...  |
Dec 19 18:20:57.372 INFO [stderr] 12 | |   }
Dec 19 18:20:57.372 INFO [stderr] 13 | | }
Dec 19 18:20:57.372 INFO [stderr]    | |_^
Dec 19 18:20:57.372 INFO [stderr]    |
Dec 19 18:20:57.372 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 19 18:20:57.372 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 18:20:57.372 INFO [stderr] 
Dec 19 18:20:57.372 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 19 18:20:57.376 INFO [stderr]   --> src/errors.rs:1:1
Dec 19 18:20:57.376 INFO [stderr]    |
Dec 19 18:20:57.376 INFO [stderr] 1  | / error_chain! {
Dec 19 18:20:57.376 INFO [stderr] 2  | |
Dec 19 18:20:57.376 INFO [stderr] 3  | |   types {
Dec 19 18:20:57.376 INFO [stderr] 4  | |     Error, ErrorKind, ResultExt, Result;
Dec 19 18:20:57.376 INFO [stderr] ...  |
Dec 19 18:20:57.376 INFO [stderr] 12 | |   }
Dec 19 18:20:57.376 INFO [stderr] 13 | | }
Dec 19 18:20:57.376 INFO [stderr]    | |_^
Dec 19 18:20:57.376 INFO [stderr]    |
Dec 19 18:20:57.376 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 18:20:57.376 INFO [stderr] 
Dec 19 18:20:57.517 INFO [stderr] warning: method is never used: `new`
Dec 19 18:20:57.517 INFO [stderr]  --> src/state.rs:7:3
Dec 19 18:20:57.518 INFO [stderr]   |
Dec 19 18:20:57.518 INFO [stderr] 7 |   pub fn new() -> RaftState {
Dec 19 18:20:57.518 INFO [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.518 INFO [stderr]   |
Dec 19 18:20:57.518 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 18:20:57.518 INFO [stderr] 
Dec 19 18:20:57.518 INFO [stderr] warning: method is never used: `vote`
Dec 19 18:20:57.518 INFO [stderr]   --> src/state.rs:11:3
Dec 19 18:20:57.518 INFO [stderr]    |
Dec 19 18:20:57.518 INFO [stderr] 11 |   pub fn vote(&mut self, candidate: String) {
Dec 19 18:20:57.518 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.518 INFO [stderr] 
Dec 19 18:20:57.518 INFO [stderr] warning: variant is never constructed: `Follower`
Dec 19 18:20:57.518 INFO [stderr]   --> src/state.rs:20:3
Dec 19 18:20:57.518 INFO [stderr]    |
Dec 19 18:20:57.518 INFO [stderr] 20 |   Follower(StateMachine<Follower>),
Dec 19 18:20:57.518 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.519 INFO [stderr] 
Dec 19 18:20:57.519 INFO [stderr] warning: variant is never constructed: `Candidate`
Dec 19 18:20:57.519 INFO [stderr]   --> src/state.rs:21:3
Dec 19 18:20:57.519 INFO [stderr]    |
Dec 19 18:20:57.519 INFO [stderr] 21 |   Candidate(StateMachine<Candidate>),
Dec 19 18:20:57.519 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.519 INFO [stderr] 
Dec 19 18:20:57.519 INFO [stderr] warning: variant is never constructed: `Leader`
Dec 19 18:20:57.519 INFO [stderr]   --> src/state.rs:22:3
Dec 19 18:20:57.519 INFO [stderr]    |
Dec 19 18:20:57.519 INFO [stderr] 22 |   Leader(StateMachine<Leader>)
Dec 19 18:20:57.519 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.519 INFO [stderr] 
Dec 19 18:20:57.519 INFO [stderr] warning: method is never used: `init`
Dec 19 18:20:57.524 INFO [stderr]   --> src/state.rs:42:3
Dec 19 18:20:57.524 INFO [stderr]    |
Dec 19 18:20:57.524 INFO [stderr] 42 |   pub fn init() -> StateMachine<Follower> {
Dec 19 18:20:57.524 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.524 INFO [stderr] 
Dec 19 18:20:57.524 INFO [stderr] warning: method is never used: `vote`
Dec 19 18:20:57.524 INFO [stderr]   --> src/state.rs:47:3
Dec 19 18:20:57.524 INFO [stderr]    |
Dec 19 18:20:57.524 INFO [stderr] 47 |   pub fn vote(self, candidate: String) -> StateMachine<Follower> {
Dec 19 18:20:57.524 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.524 INFO [stderr] 
Dec 19 18:20:57.524 INFO [stderr] warning: method is never used: `complete_vote`
Dec 19 18:20:57.524 INFO [stderr]   --> src/state.rs:52:3
Dec 19 18:20:57.524 INFO [stderr]    |
Dec 19 18:20:57.524 INFO [stderr] 52 |   pub fn complete_vote(self) -> StateMachine<Follower> {
Dec 19 18:20:57.524 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.524 INFO [stderr] 
Dec 19 18:20:57.524 INFO [stderr] warning: method is never used: `election_timeout`
Dec 19 18:20:57.524 INFO [stderr]   --> src/state.rs:57:3
Dec 19 18:20:57.524 INFO [stderr]    |
Dec 19 18:20:57.524 INFO [stderr] 57 |   pub fn election_timeout(self) -> StateMachine<Candidate> {
Dec 19 18:20:57.524 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.524 INFO [stderr] 
Dec 19 18:20:57.524 INFO [stderr] warning: method is never used: `failed_majority_timeout`
Dec 19 18:20:57.524 INFO [stderr]   --> src/state.rs:64:3
Dec 19 18:20:57.524 INFO [stderr]    |
Dec 19 18:20:57.524 INFO [stderr] 64 |   pub fn failed_majority_timeout(self) -> StateMachine<Candidate> {
Dec 19 18:20:57.524 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.524 INFO [stderr] 
Dec 19 18:20:57.524 INFO [stderr] warning: method is never used: `other_leader_elected`
Dec 19 18:20:57.524 INFO [stderr]   --> src/state.rs:69:3
Dec 19 18:20:57.524 INFO [stderr]    |
Dec 19 18:20:57.524 INFO [stderr] 69 |   pub fn other_leader_elected(self) -> StateMachine<Follower> {
Dec 19 18:20:57.528 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.528 INFO [stderr] 
Dec 19 18:20:57.528 INFO [stderr] warning: method is never used: `elected`
Dec 19 18:20:57.528 INFO [stderr]   --> src/state.rs:74:3
Dec 19 18:20:57.528 INFO [stderr]    |
Dec 19 18:20:57.528 INFO [stderr] 74 |   pub fn elected(self) -> StateMachine<Leader> {
Dec 19 18:20:57.528 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.528 INFO [stderr] 
Dec 19 18:20:57.530 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:20:57.531 INFO [stderr]    --> src/server.rs:107:7
Dec 19 18:20:57.531 INFO [stderr]     |
Dec 19 18:20:57.531 INFO [stderr] 107 |       v.send(rng.gen());
Dec 19 18:20:57.531 INFO [stderr]     |       ^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.532 INFO [stderr]     |
Dec 19 18:20:57.532 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 18:20:57.532 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:20:57.532 INFO [stderr] 
Dec 19 18:20:57.546 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 19 18:20:57.548 INFO [stderr]   --> src/errors.rs:1:1
Dec 19 18:20:57.548 INFO [stderr]    |
Dec 19 18:20:57.548 INFO [stderr] 1  | / error_chain! {
Dec 19 18:20:57.548 INFO [stderr] 2  | |
Dec 19 18:20:57.548 INFO [stderr] 3  | |   types {
Dec 19 18:20:57.548 INFO [stderr] 4  | |     Error, ErrorKind, ResultExt, Result;
Dec 19 18:20:57.548 INFO [stderr] ...  |
Dec 19 18:20:57.548 INFO [stderr] 12 | |   }
Dec 19 18:20:57.548 INFO [stderr] 13 | | }
Dec 19 18:20:57.548 INFO [stderr]    | |_^
Dec 19 18:20:57.548 INFO [stderr]    |
Dec 19 18:20:57.548 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 19 18:20:57.548 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 18:20:57.548 INFO [stderr] 
Dec 19 18:20:57.548 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 19 18:20:57.548 INFO [stderr]   --> src/errors.rs:1:1
Dec 19 18:20:57.548 INFO [stderr]    |
Dec 19 18:20:57.548 INFO [stderr] 1  | / error_chain! {
Dec 19 18:20:57.548 INFO [stderr] 2  | |
Dec 19 18:20:57.548 INFO [stderr] 3  | |   types {
Dec 19 18:20:57.548 INFO [stderr] 4  | |     Error, ErrorKind, ResultExt, Result;
Dec 19 18:20:57.548 INFO [stderr] ...  |
Dec 19 18:20:57.548 INFO [stderr] 12 | |   }
Dec 19 18:20:57.548 INFO [stderr] 13 | | }
Dec 19 18:20:57.548 INFO [stderr]    | |_^
Dec 19 18:20:57.548 INFO [stderr]    |
Dec 19 18:20:57.548 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 19 18:20:57.548 INFO [stderr] 
Dec 19 18:20:57.854 INFO [stderr] warning: method is never used: `new`
Dec 19 18:20:57.854 INFO [stderr]  --> src/state.rs:7:3
Dec 19 18:20:57.854 INFO [stderr]   |
Dec 19 18:20:57.854 INFO [stderr] 7 |   pub fn new() -> RaftState {
Dec 19 18:20:57.854 INFO [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.854 INFO [stderr]   |
Dec 19 18:20:57.854 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 18:20:57.854 INFO [stderr] 
Dec 19 18:20:57.854 INFO [stderr] warning: method is never used: `vote`
Dec 19 18:20:57.854 INFO [stderr]   --> src/state.rs:11:3
Dec 19 18:20:57.854 INFO [stderr]    |
Dec 19 18:20:57.854 INFO [stderr] 11 |   pub fn vote(&mut self, candidate: String) {
Dec 19 18:20:57.854 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.855 INFO [stderr] 
Dec 19 18:20:57.855 INFO [stderr] warning: variant is never constructed: `Follower`
Dec 19 18:20:57.855 INFO [stderr]   --> src/state.rs:20:3
Dec 19 18:20:57.855 INFO [stderr]    |
Dec 19 18:20:57.855 INFO [stderr] 20 |   Follower(StateMachine<Follower>),
Dec 19 18:20:57.855 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.855 INFO [stderr] 
Dec 19 18:20:57.855 INFO [stderr] warning: variant is never constructed: `Candidate`
Dec 19 18:20:57.855 INFO [stderr]   --> src/state.rs:21:3
Dec 19 18:20:57.855 INFO [stderr]    |
Dec 19 18:20:57.855 INFO [stderr] 21 |   Candidate(StateMachine<Candidate>),
Dec 19 18:20:57.855 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.855 INFO [stderr] 
Dec 19 18:20:57.855 INFO [stderr] warning: variant is never constructed: `Leader`
Dec 19 18:20:57.855 INFO [stderr]   --> src/state.rs:22:3
Dec 19 18:20:57.855 INFO [stderr]    |
Dec 19 18:20:57.855 INFO [stderr] 22 |   Leader(StateMachine<Leader>)
Dec 19 18:20:57.855 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.855 INFO [stderr] 
Dec 19 18:20:57.855 INFO [stderr] warning: method is never used: `init`
Dec 19 18:20:57.855 INFO [stderr]   --> src/state.rs:42:3
Dec 19 18:20:57.855 INFO [stderr]    |
Dec 19 18:20:57.855 INFO [stderr] 42 |   pub fn init() -> StateMachine<Follower> {
Dec 19 18:20:57.855 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.855 INFO [stderr] 
Dec 19 18:20:57.855 INFO [stderr] warning: method is never used: `vote`
Dec 19 18:20:57.855 INFO [stderr]   --> src/state.rs:47:3
Dec 19 18:20:57.855 INFO [stderr]    |
Dec 19 18:20:57.855 INFO [stderr] 47 |   pub fn vote(self, candidate: String) -> StateMachine<Follower> {
Dec 19 18:20:57.855 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.855 INFO [stderr] 
Dec 19 18:20:57.855 INFO [stderr] warning: method is never used: `complete_vote`
Dec 19 18:20:57.855 INFO [stderr]   --> src/state.rs:52:3
Dec 19 18:20:57.855 INFO [stderr]    |
Dec 19 18:20:57.856 INFO [stderr] 52 |   pub fn complete_vote(self) -> StateMachine<Follower> {
Dec 19 18:20:57.856 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.856 INFO [stderr] 
Dec 19 18:20:57.856 INFO [stderr] warning: method is never used: `election_timeout`
Dec 19 18:20:57.856 INFO [stderr]   --> src/state.rs:57:3
Dec 19 18:20:57.856 INFO [stderr]    |
Dec 19 18:20:57.856 INFO [stderr] 57 |   pub fn election_timeout(self) -> StateMachine<Candidate> {
Dec 19 18:20:57.856 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.856 INFO [stderr] 
Dec 19 18:20:57.856 INFO [stderr] warning: method is never used: `failed_majority_timeout`
Dec 19 18:20:57.856 INFO [stderr]   --> src/state.rs:64:3
Dec 19 18:20:57.856 INFO [stderr]    |
Dec 19 18:20:57.856 INFO [stderr] 64 |   pub fn failed_majority_timeout(self) -> StateMachine<Candidate> {
Dec 19 18:20:57.856 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.856 INFO [stderr] 
Dec 19 18:20:57.856 INFO [stderr] warning: method is never used: `other_leader_elected`
Dec 19 18:20:57.856 INFO [stderr]   --> src/state.rs:69:3
Dec 19 18:20:57.856 INFO [stderr]    |
Dec 19 18:20:57.856 INFO [stderr] 69 |   pub fn other_leader_elected(self) -> StateMachine<Follower> {
Dec 19 18:20:57.856 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.856 INFO [stderr] 
Dec 19 18:20:57.856 INFO [stderr] warning: method is never used: `elected`
Dec 19 18:20:57.856 INFO [stderr]   --> src/state.rs:74:3
Dec 19 18:20:57.856 INFO [stderr]    |
Dec 19 18:20:57.856 INFO [stderr] 74 |   pub fn elected(self) -> StateMachine<Leader> {
Dec 19 18:20:57.856 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.856 INFO [stderr] 
Dec 19 18:20:57.856 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 18:20:57.856 INFO [stderr]    --> src/server.rs:107:7
Dec 19 18:20:57.856 INFO [stderr]     |
Dec 19 18:20:57.856 INFO [stderr] 107 |       v.send(rng.gen());
Dec 19 18:20:57.856 INFO [stderr]     |       ^^^^^^^^^^^^^^^^^^
Dec 19 18:20:57.856 INFO [stderr]     |
Dec 19 18:20:57.856 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 18:20:57.856 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 18:20:57.856 INFO [stderr] 
Dec 19 18:21:00.557 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.87s
Dec 19 18:21:01.988 INFO running `"docker" "inspect" "9243e12225d1b5901e487d9650eb231becc93f202e1649f04eb32160a720ca10"`
Dec 19 18:21:02.360 INFO running `"docker" "rm" "-f" "9243e12225d1b5901e487d9650eb231becc93f202e1649f04eb32160a720ca10"`
Dec 19 18:21:02.708 INFO [stdout] 9243e12225d1b5901e487d9650eb231becc93f202e1649f04eb32160a720ca10