[INFO] updating cached repository yuanpx/sundfs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/yuanpx/sundfs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/yuanpx/sundfs" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/yuanpx/sundfs"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/yuanpx/sundfs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/yuanpx/sundfs" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/yuanpx/sundfs"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/yuanpx/sundfs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e8a69517e362a53133f1ef553c0ad518e8339c02
[INFO] sha for GitHub repo yuanpx/sundfs: e8a69517e362a53133f1ef553c0ad518e8339c02
[INFO] validating manifest of yuanpx/sundfs on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of yuanpx/sundfs on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing yuanpx/sundfs
[INFO] finished frobbing yuanpx/sundfs
[INFO] frobbed toml for yuanpx/sundfs written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/yuanpx/sundfs/Cargo.toml
[INFO] started frobbing yuanpx/sundfs
[INFO] finished frobbing yuanpx/sundfs
[INFO] frobbed toml for yuanpx/sundfs written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/yuanpx/sundfs/Cargo.toml
[INFO] crate yuanpx/sundfs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking yuanpx/sundfs against master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-5/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/yuanpx/sundfs:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c681ce4f66928c7ec88fd9ef61b5ecbc092ffc3e1a33efcc7a57ff4f804e68a9
[INFO] running `"docker" "start" "-a" "c681ce4f66928c7ec88fd9ef61b5ecbc092ffc3e1a33efcc7a57ff4f804e68a9"`
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]     Checking lazycell v0.4.0
[INFO] [stderr]     Checking log v0.3.6
[INFO] [stderr]     Checking scoped-tls v0.1.0
[INFO] [stderr]     Checking futures v0.1.10
[INFO] [stderr]     Checking net2 v0.2.26
[INFO] [stderr]     Checking mio v0.6.4
[INFO] [stderr]     Checking tokio-core v0.1.4
[INFO] [stderr]     Checking sundfs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::ops::Range`
[INFO] [stderr]  --> src/raft/raft.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::ops::Range;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/storage/nio.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::tokio_core::reactor::Interval`
[INFO] [stderr]   --> src/storage/nio.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use self::tokio_core::reactor::Interval;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `CANCEL_TIMEOUT` should have an upper camel case name
[INFO] [stderr]   --> src/storage/nio.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     CANCEL_TIMEOUT(usize),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `CancelTimeout`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/storage/logic.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/storage/logic.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter`
[INFO] [stderr]  --> src/storage/logic.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::iter;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/storage/logic.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ErrorKind`, `Error`
[INFO] [stderr]  --> src/storage/logic.rs:8:15
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::{Error, ErrorKind};
[INFO] [stderr]   |               ^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/storage/logic.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]   --> src/storage/logic.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::cell::RefCell;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::Cell`
[INFO] [stderr]   --> src/storage/logic.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::cell::Cell;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::tokio_core::net::TcpListener`
[INFO] [stderr]   --> src/storage/logic.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use self::tokio_core::net::TcpListener;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::tokio_core::net::TcpStream`
[INFO] [stderr]   --> src/storage/logic.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use self::tokio_core::net::TcpStream;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::tokio_core::reactor::Timeout`
[INFO] [stderr]   --> src/storage/logic.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use self::tokio_core::reactor::Timeout;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::tokio_core::reactor::Interval`
[INFO] [stderr]   --> src/storage/logic.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use self::tokio_core::reactor::Interval;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::tokio_core::reactor::Handle`
[INFO] [stderr]   --> src/storage/logic.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use self::tokio_core::reactor::Handle;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::tokio_core::io`
[INFO] [stderr]   --> src/storage/logic.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use self::tokio_core::io;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::tokio_core::io::Io`
[INFO] [stderr]   --> src/storage/logic.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | use self::tokio_core::io::Io;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::futures::stream`
[INFO] [stderr]   --> src/storage/logic.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use self::futures::stream;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::futures::sync::mpsc::UnboundedReceiver`
[INFO] [stderr]   --> src/storage/logic.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 | use self::futures::sync::mpsc::UnboundedReceiver;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::futures::sync::mpsc`
[INFO] [stderr]   --> src/storage/logic.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 | use self::futures::sync::mpsc;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `NetService`
[INFO] [stderr]  --> src/main.rs:4:20
[INFO] [stderr]   |
[INFO] [stderr] 4 | use storage::nio::{NetService, NetEvent};
[INFO] [stderr]   |                    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Range`
[INFO] [stderr]  --> src/raft/raft.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::ops::Range;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/storage/nio.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::tokio_core::reactor::Interval`
[INFO] [stderr]   --> src/storage/nio.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use self::tokio_core::reactor::Interval;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `CANCEL_TIMEOUT` should have an upper camel case name
[INFO] [stderr]   --> src/storage/nio.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     CANCEL_TIMEOUT(usize),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `CancelTimeout`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/storage/logic.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/storage/logic.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter`
[INFO] [stderr]  --> src/storage/logic.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::iter;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/storage/logic.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ErrorKind`, `Error`
[INFO] [stderr]  --> src/storage/logic.rs:8:15
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::{Error, ErrorKind};
[INFO] [stderr]   |               ^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/storage/logic.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]   --> src/storage/logic.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::cell::RefCell;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::Cell`
[INFO] [stderr]   --> src/storage/logic.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::cell::Cell;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::tokio_core::net::TcpListener`
[INFO] [stderr]   --> src/storage/logic.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use self::tokio_core::net::TcpListener;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::tokio_core::net::TcpStream`
[INFO] [stderr]   --> src/storage/logic.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use self::tokio_core::net::TcpStream;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::tokio_core::reactor::Timeout`
[INFO] [stderr]   --> src/storage/logic.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use self::tokio_core::reactor::Timeout;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::tokio_core::reactor::Interval`
[INFO] [stderr]   --> src/storage/logic.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use self::tokio_core::reactor::Interval;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::tokio_core::reactor::Handle`
[INFO] [stderr]   --> src/storage/logic.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use self::tokio_core::reactor::Handle;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::tokio_core::io`
[INFO] [stderr]   --> src/storage/logic.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use self::tokio_core::io;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::tokio_core::io::Io`
[INFO] [stderr]   --> src/storage/logic.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | use self::tokio_core::io::Io;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::futures::stream`
[INFO] [stderr]   --> src/storage/logic.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use self::futures::stream;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::futures::sync::mpsc::UnboundedReceiver`
[INFO] [stderr]   --> src/storage/logic.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 | use self::futures::sync::mpsc::UnboundedReceiver;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::futures::sync::mpsc`
[INFO] [stderr]   --> src/storage/logic.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 | use self::futures::sync::mpsc;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `NetService`
[INFO] [stderr]  --> src/main.rs:4:20
[INFO] [stderr]   |
[INFO] [stderr] 4 | use storage::nio::{NetService, NetEvent};
[INFO] [stderr]   |                    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `event`
[INFO] [stderr]   --> src/main.rs:21:34
[INFO] [stderr]    |
[INFO] [stderr] 21 |             NetEvent::CONNECTED((event,id)) => {
[INFO] [stderr]    |                                  ^^^^^ help: consider prefixing with an underscore: `_event`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `event`
[INFO] [stderr]   --> src/main.rs:24:37
[INFO] [stderr]    |
[INFO] [stderr] 24 |             NetEvent::DISCONNECTED((event,id))=> {
[INFO] [stderr]    |                                     ^^^^^ help: consider prefixing with an underscore: `_event`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]   --> src/main.rs:28:36
[INFO] [stderr]    |
[INFO] [stderr] 28 |             NetEvent::MESSAGE((id, buf)) => {
[INFO] [stderr]    |                                    ^^^ help: consider prefixing with an underscore: `_buf`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `service`
[INFO] [stderr]   --> src/main.rs:19:33
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn process_event(&mut self, service: &mut Service, ev: NetEvent) {
[INFO] [stderr]    |                                 ^^^^^^^ help: consider prefixing with an underscore: `_service`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `service`
[INFO] [stderr]   --> src/raft/raft.rs:73:32
[INFO] [stderr]    |
[INFO] [stderr] 73 |     fn process_init(&mut self, service: &mut Service) {
[INFO] [stderr]    |                                ^^^^^^^ help: consider prefixing with an underscore: `_service`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `event`
[INFO] [stderr]   --> src/raft/raft.rs:78:34
[INFO] [stderr]    |
[INFO] [stderr] 78 |             NetEvent::CONNECTED((event,id)) => {
[INFO] [stderr]    |                                  ^^^^^ help: consider prefixing with an underscore: `_event`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `event`
[INFO] [stderr]   --> src/raft/raft.rs:81:37
[INFO] [stderr]    |
[INFO] [stderr] 81 |             NetEvent::DISCONNECTED((event,id))=> {
[INFO] [stderr]    |                                     ^^^^^ help: consider prefixing with an underscore: `_event`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]   --> src/raft/raft.rs:85:36
[INFO] [stderr]    |
[INFO] [stderr] 85 |             NetEvent::MESSAGE((id, buf)) => {
[INFO] [stderr]    |                                    ^^^ help: consider prefixing with an underscore: `_buf`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `service`
[INFO] [stderr]    --> src/raft/raft.rs:152:57
[INFO] [stderr]     |
[INFO] [stderr] 152 |     fn process_candidate_requestvote_timeout(&mut self, service: &mut Service) {
[INFO] [stderr]     |                                                         ^^^^^^^ help: consider prefixing with an underscore: `_service`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `entry`
[INFO] [stderr]    --> src/raft/raft.rs:163:41
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn process_appendentries(&mut self, entry: AppendEntry) {
[INFO] [stderr]     |                                         ^^^^^ help: consider prefixing with an underscore: `_entry`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `request`
[INFO] [stderr]    --> src/raft/raft.rs:171:39
[INFO] [stderr]     |
[INFO] [stderr] 171 |     fn process_requestvote(&mut self, request: RequestVote) {
[INFO] [stderr]     |                                       ^^^^^^^ help: consider prefixing with an underscore: `_request`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `size` is never read
[INFO] [stderr]   --> src/storage/dio.rs:66:17
[INFO] [stderr]    |
[INFO] [stderr] 66 |         let mut size: usize = 0;
[INFO] [stderr]    |                 ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `read_bytes`
[INFO] [stderr]   --> src/storage/dio.rs:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 |             let read_bytes = if capacity_bytes < remain_bytes as usize {
[INFO] [stderr]    |                 ^^^^^^^^^^ help: consider prefixing with an underscore: `_read_bytes`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `size` is never read
[INFO] [stderr]   --> src/storage/dio.rs:90:17
[INFO] [stderr]    |
[INFO] [stderr] 90 |         let mut size: usize = 0;
[INFO] [stderr]    |                 ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `core`
[INFO] [stderr]   --> src/storage/nio.rs:51:17
[INFO] [stderr]    |
[INFO] [stderr] 51 |         let mut core = try!(Core::new());
[INFO] [stderr]    |                 ^^^^ help: consider prefixing with an underscore: `_core`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/storage/dio.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |         let mut remain_bytes = self.end - self.offset;
[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/storage/dio.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let mut capacity_bytes = buf.len(); 
[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/storage/nio.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |         let mut core = try!(Core::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/storage/nio.rs:98:21
[INFO] [stderr]    |
[INFO] [stderr] 98 |                 let mut body_vec = vec![0; body_len];
[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/storage/nio.rs:84:13
[INFO] [stderr]    |
[INFO] [stderr] 84 |         let mut header_vec: Vec<u8> = vec![0;1];
[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/storage/nio.rs:153:13
[INFO] [stderr]     |
[INFO] [stderr] 153 |         let mut listener = try!(TcpListener::bind(address, &handle));
[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/storage/logic.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let mut net_service = NetService::new().unwrap();
[INFO] [stderr]    |             ----^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Role`
[INFO] [stderr]  --> src/raft/raft.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | enum Role {
[INFO] [stderr]   | ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Phase`
[INFO] [stderr]   --> src/raft/raft.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | enum Phase {
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Node`
[INFO] [stderr]   --> src/raft/raft.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | struct Node {
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Config`
[INFO] [stderr]   --> src/raft/raft.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | struct Config {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `id`
[INFO] [stderr]   --> src/raft/raft.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     id: usize,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `leader_id`
[INFO] [stderr]   --> src/raft/raft.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     leader_id: Option<usize>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `nodes`
[INFO] [stderr]   --> src/raft/raft.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     nodes: HashMap<usize, Node>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `term`
[INFO] [stderr]   --> src/raft/raft.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     term: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `vote`
[INFO] [stderr]   --> src/raft/raft.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     vote: (usize, usize),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Log`
[INFO] [stderr]   --> src/raft/raft.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | enum Log {
[INFO] [stderr]    | ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Message`
[INFO] [stderr]   --> src/raft/raft.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | enum Message {
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `RequestVote`
[INFO] [stderr]   --> src/raft/raft.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | struct RequestVote{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ResponseVote`
[INFO] [stderr]   --> src/raft/raft.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | struct ResponseVote {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `AppendEntry`
[INFO] [stderr]   --> src/raft/raft.rs:64:1
[INFO] [stderr]    |
[INFO] [stderr] 64 | struct AppendEntry{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `major`
[INFO] [stderr]    --> src/raft/raft.rs:106:5
[INFO] [stderr]     |
[INFO] [stderr] 106 |     fn major(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_requestvote`
[INFO] [stderr]    --> src/raft/raft.rs:110:5
[INFO] [stderr]     |
[INFO] [stderr] 110 |     fn send_requestvote(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_appendentries`
[INFO] [stderr]    --> src/raft/raft.rs:113:5
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn send_appendentries(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_leader_heartbeat`
[INFO] [stderr]    --> src/raft/raft.rs:117:5
[INFO] [stderr]     |
[INFO] [stderr] 117 |     fn send_leader_heartbeat(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `begin_candidate_requestvote_timeout`
[INFO] [stderr]    --> src/raft/raft.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn begin_candidate_requestvote_timeout(&self, service:&mut Service) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `process_appendentries`
[INFO] [stderr]    --> src/raft/raft.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn process_appendentries(&mut self, entry: AppendEntry) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `process_leader_heartbeat`
[INFO] [stderr]    --> src/raft/raft.rs:167:5
[INFO] [stderr]     |
[INFO] [stderr] 167 |     fn process_leader_heartbeat(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `process_requestvote`
[INFO] [stderr]    --> src/raft/raft.rs:171:5
[INFO] [stderr]     |
[INFO] [stderr] 171 |     fn process_requestvote(&mut self, request: RequestVote) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `become_follower`
[INFO] [stderr]    --> src/raft/raft.rs:175:5
[INFO] [stderr]     |
[INFO] [stderr] 175 |     fn become_follower(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `become_leader`
[INFO] [stderr]    --> src/raft/raft.rs:182:5
[INFO] [stderr]     |
[INFO] [stderr] 182 |     fn become_leader(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Upload`
[INFO] [stderr]   --> src/storage/dio.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | struct Upload{
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `SetMeta`
[INFO] [stderr]   --> src/storage/dio.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | struct SetMeta{
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ExtraInfo`
[INFO] [stderr]   --> src/storage/dio.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | enum ExtraInfo {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `FileContext`
[INFO] [stderr]   --> src/storage/dio.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub struct FileContext {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/storage/dio.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub   fn new(file_name: &str) -> FileContext {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_option`
[INFO] [stderr]   --> src/storage/dio.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub    fn set_option(&mut self, option: OpenOptions) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `open_file`
[INFO] [stderr]   --> src/storage/dio.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn open_file(&mut self) -> Result<()> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_file`
[INFO] [stderr]   --> src/storage/dio.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn read_file(&mut self, buf: &mut [u8]) -> Result<usize> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write_file`
[INFO] [stderr]   --> src/storage/dio.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 |     pub fn write_file(&mut self, buf: &[u8]) -> Result<usize> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `truncate_file`
[INFO] [stderr]    --> src/storage/dio.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     pub fn truncate_file(&mut self) -> Result<()> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SEND`
[INFO] [stderr]   --> src/storage/nio.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     SEND((usize, Vec<u8>)),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CANCEL_TIMEOUT`
[INFO] [stderr]   --> src/storage/nio.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     CANCEL_TIMEOUT(usize),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send`
[INFO] [stderr]   --> src/storage/logic.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn send(&mut self, id: usize, buf: Vec<u8>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `cancel_timeout`
[INFO] [stderr]   --> src/storage/logic.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn cancel_timeout(&mut self, id: usize) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `candidate_process__timeout` should have a snake case name
[INFO] [stderr]   --> src/raft/raft.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     candidate_process__timeout: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `candidate_process_timeout`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/storage/nio.rs:71:17
[INFO] [stderr]    |
[INFO] [stderr] 71 |                 Self::process_cancel_timeout(id, timeouts);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     s.start(&mut t);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `event`
[INFO] [stderr]   --> src/main.rs:21:34
[INFO] [stderr]    |
[INFO] [stderr] 21 |             NetEvent::CONNECTED((event,id)) => {
[INFO] [stderr]    |                                  ^^^^^ help: consider prefixing with an underscore: `_event`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `event`
[INFO] [stderr]   --> src/main.rs:24:37
[INFO] [stderr]    |
[INFO] [stderr] 24 |             NetEvent::DISCONNECTED((event,id))=> {
[INFO] [stderr]    |                                     ^^^^^ help: consider prefixing with an underscore: `_event`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]   --> src/main.rs:28:36
[INFO] [stderr]    |
[INFO] [stderr] 28 |             NetEvent::MESSAGE((id, buf)) => {
[INFO] [stderr]    |                                    ^^^ help: consider prefixing with an underscore: `_buf`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `service`
[INFO] [stderr]   --> src/main.rs:19:33
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn process_event(&mut self, service: &mut Service, ev: NetEvent) {
[INFO] [stderr]    |                                 ^^^^^^^ help: consider prefixing with an underscore: `_service`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `service`
[INFO] [stderr]   --> src/raft/raft.rs:73:32
[INFO] [stderr]    |
[INFO] [stderr] 73 |     fn process_init(&mut self, service: &mut Service) {
[INFO] [stderr]    |                                ^^^^^^^ help: consider prefixing with an underscore: `_service`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `event`
[INFO] [stderr]   --> src/raft/raft.rs:78:34
[INFO] [stderr]    |
[INFO] [stderr] 78 |             NetEvent::CONNECTED((event,id)) => {
[INFO] [stderr]    |                                  ^^^^^ help: consider prefixing with an underscore: `_event`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `event`
[INFO] [stderr]   --> src/raft/raft.rs:81:37
[INFO] [stderr]    |
[INFO] [stderr] 81 |             NetEvent::DISCONNECTED((event,id))=> {
[INFO] [stderr]    |                                     ^^^^^ help: consider prefixing with an underscore: `_event`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]   --> src/raft/raft.rs:85:36
[INFO] [stderr]    |
[INFO] [stderr] 85 |             NetEvent::MESSAGE((id, buf)) => {
[INFO] [stderr]    |                                    ^^^ help: consider prefixing with an underscore: `_buf`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `service`
[INFO] [stderr]    --> src/raft/raft.rs:152:57
[INFO] [stderr]     |
[INFO] [stderr] 152 |     fn process_candidate_requestvote_timeout(&mut self, service: &mut Service) {
[INFO] [stderr]     |                                                         ^^^^^^^ help: consider prefixing with an underscore: `_service`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `entry`
[INFO] [stderr]    --> src/raft/raft.rs:163:41
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn process_appendentries(&mut self, entry: AppendEntry) {
[INFO] [stderr]     |                                         ^^^^^ help: consider prefixing with an underscore: `_entry`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `request`
[INFO] [stderr]    --> src/raft/raft.rs:171:39
[INFO] [stderr]     |
[INFO] [stderr] 171 |     fn process_requestvote(&mut self, request: RequestVote) {
[INFO] [stderr]     |                                       ^^^^^^^ help: consider prefixing with an underscore: `_request`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `size` is never read
[INFO] [stderr]   --> src/storage/dio.rs:66:17
[INFO] [stderr]    |
[INFO] [stderr] 66 |         let mut size: usize = 0;
[INFO] [stderr]    |                 ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `read_bytes`
[INFO] [stderr]   --> src/storage/dio.rs:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 |             let read_bytes = if capacity_bytes < remain_bytes as usize {
[INFO] [stderr]    |                 ^^^^^^^^^^ help: consider prefixing with an underscore: `_read_bytes`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `size` is never read
[INFO] [stderr]   --> src/storage/dio.rs:90:17
[INFO] [stderr]    |
[INFO] [stderr] 90 |         let mut size: usize = 0;
[INFO] [stderr]    |                 ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `core`
[INFO] [stderr]   --> src/storage/nio.rs:51:17
[INFO] [stderr]    |
[INFO] [stderr] 51 |         let mut core = try!(Core::new());
[INFO] [stderr]    |                 ^^^^ help: consider prefixing with an underscore: `_core`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/storage/dio.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |         let mut remain_bytes = self.end - self.offset;
[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/storage/dio.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let mut capacity_bytes = buf.len(); 
[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/storage/dio.rs:144:9
[INFO] [stderr]     |
[INFO] [stderr] 144 |     let mut txt = String::from_utf8(vec).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/storage/nio.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |         let mut core = try!(Core::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/storage/nio.rs:98:21
[INFO] [stderr]    |
[INFO] [stderr] 98 |                 let mut body_vec = vec![0; body_len];
[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/storage/nio.rs:84:13
[INFO] [stderr]    |
[INFO] [stderr] 84 |         let mut header_vec: Vec<u8> = vec![0;1];
[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/storage/nio.rs:153:13
[INFO] [stderr]     |
[INFO] [stderr] 153 |         let mut listener = try!(TcpListener::bind(address, &handle));
[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/storage/logic.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let mut net_service = NetService::new().unwrap();
[INFO] [stderr]    |             ----^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Role`
[INFO] [stderr]  --> src/raft/raft.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | enum Role {
[INFO] [stderr]   | ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Phase`
[INFO] [stderr]   --> src/raft/raft.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | enum Phase {
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Node`
[INFO] [stderr]   --> src/raft/raft.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | struct Node {
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Config`
[INFO] [stderr]   --> src/raft/raft.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | struct Config {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `id`
[INFO] [stderr]   --> src/raft/raft.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     id: usize,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `leader_id`
[INFO] [stderr]   --> src/raft/raft.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     leader_id: Option<usize>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `nodes`
[INFO] [stderr]   --> src/raft/raft.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     nodes: HashMap<usize, Node>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `term`
[INFO] [stderr]   --> src/raft/raft.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     term: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `vote`
[INFO] [stderr]   --> src/raft/raft.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     vote: (usize, usize),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Log`
[INFO] [stderr]   --> src/raft/raft.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | enum Log {
[INFO] [stderr]    | ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Message`
[INFO] [stderr]   --> src/raft/raft.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | enum Message {
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `RequestVote`
[INFO] [stderr]   --> src/raft/raft.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | struct RequestVote{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ResponseVote`
[INFO] [stderr]   --> src/raft/raft.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | struct ResponseVote {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `AppendEntry`
[INFO] [stderr]   --> src/raft/raft.rs:64:1
[INFO] [stderr]    |
[INFO] [stderr] 64 | struct AppendEntry{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `major`
[INFO] [stderr]    --> src/raft/raft.rs:106:5
[INFO] [stderr]     |
[INFO] [stderr] 106 |     fn major(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_requestvote`
[INFO] [stderr]    --> src/raft/raft.rs:110:5
[INFO] [stderr]     |
[INFO] [stderr] 110 |     fn send_requestvote(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_appendentries`
[INFO] [stderr]    --> src/raft/raft.rs:113:5
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn send_appendentries(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send_leader_heartbeat`
[INFO] [stderr]    --> src/raft/raft.rs:117:5
[INFO] [stderr]     |
[INFO] [stderr] 117 |     fn send_leader_heartbeat(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `begin_candidate_requestvote_timeout`
[INFO] [stderr]    --> src/raft/raft.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn begin_candidate_requestvote_timeout(&self, service:&mut Service) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `process_appendentries`
[INFO] [stderr]    --> src/raft/raft.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn process_appendentries(&mut self, entry: AppendEntry) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `process_leader_heartbeat`
[INFO] [stderr]    --> src/raft/raft.rs:167:5
[INFO] [stderr]     |
[INFO] [stderr] 167 |     fn process_leader_heartbeat(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `process_requestvote`
[INFO] [stderr]    --> src/raft/raft.rs:171:5
[INFO] [stderr]     |
[INFO] [stderr] 171 |     fn process_requestvote(&mut self, request: RequestVote) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `become_follower`
[INFO] [stderr]    --> src/raft/raft.rs:175:5
[INFO] [stderr]     |
[INFO] [stderr] 175 |     fn become_follower(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `become_leader`
[INFO] [stderr]    --> src/raft/raft.rs:182:5
[INFO] [stderr]     |
[INFO] [stderr] 182 |     fn become_leader(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Upload`
[INFO] [stderr]   --> src/storage/dio.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | struct Upload{
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `SetMeta`
[INFO] [stderr]   --> src/storage/dio.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | struct SetMeta{
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ExtraInfo`
[INFO] [stderr]   --> src/storage/dio.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | enum ExtraInfo {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `truncate_file`
[INFO] [stderr]    --> src/storage/dio.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     pub fn truncate_file(&mut self) -> Result<()> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SEND`
[INFO] [stderr]   --> src/storage/nio.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     SEND((usize, Vec<u8>)),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CANCEL_TIMEOUT`
[INFO] [stderr]   --> src/storage/nio.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     CANCEL_TIMEOUT(usize),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `send`
[INFO] [stderr]   --> src/storage/logic.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn send(&mut self, id: usize, buf: Vec<u8>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `cancel_timeout`
[INFO] [stderr]   --> src/storage/logic.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn cancel_timeout(&mut self, id: usize) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `candidate_process__timeout` should have a snake case name
[INFO] [stderr]   --> src/raft/raft.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     candidate_process__timeout: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `candidate_process_timeout`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/storage/nio.rs:71:17
[INFO] [stderr]    |
[INFO] [stderr] 71 |                 Self::process_cancel_timeout(id, timeouts);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     s.start(&mut t);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.01s
[INFO] running `"docker" "inspect" "c681ce4f66928c7ec88fd9ef61b5ecbc092ffc3e1a33efcc7a57ff4f804e68a9"`
[INFO] running `"docker" "rm" "-f" "c681ce4f66928c7ec88fd9ef61b5ecbc092ffc3e1a33efcc7a57ff4f804e68a9"`
[INFO] [stdout] c681ce4f66928c7ec88fd9ef61b5ecbc092ffc3e1a33efcc7a57ff4f804e68a9