[INFO] updating cached repository https://github.com/linpingchuan/raft
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e5906fe6b04eb1f73fb6366e003aadd441b6a983
[INFO] checking linpingchuan/raft against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66852
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flinpingchuan%2Fraft" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/linpingchuan/raft on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/linpingchuan/raft
[INFO] finished tweaking git repo https://github.com/linpingchuan/raft
[INFO] tweaked toml for git repo https://github.com/linpingchuan/raft written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/linpingchuan/raft already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=forbid" "-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" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ed85ebe73bb8a4c0e4ecaf303b981f3b503a154d0dcc190820a2c9544eedfeff
[INFO] running `"docker" "start" "-a" "ed85ebe73bb8a4c0e4ecaf303b981f3b503a154d0dcc190820a2c9544eedfeff"`
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking memchr v2.2.1
[INFO] [stderr]     Checking slog-scope v4.2.0
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking fail v0.3.0
[INFO] [stderr]     Checking crossbeam v0.7.2
[INFO] [stderr]     Checking rayon-core v1.6.0
[INFO] [stderr]     Checking slog-stdlog v4.0.0
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking rand_os v0.2.2
[INFO] [stderr]     Checking rand_xoshiro v0.3.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking slog-term v2.4.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking criterion-plot v0.4.0
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]     Checking slog-envlogger v2.2.0
[INFO] [stderr]    Compiling protobuf-build v0.8.0
[INFO] [stderr]    Compiling raft-proto v0.6.0-alpha
[INFO] [stderr]    Compiling getset v0.0.7
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking criterion v0.3.0
[INFO] [stderr]     Checking hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Entry`, `Message`
[INFO] [stderr]  --> src/util.rs:6:30
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::protos::eraftpb::{Entry, Message};
[INFO] [stderr]   |                              ^^^^^  ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::storage::Storage`
[INFO] [stderr]  --> src/raft.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use super::storage::Storage;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Entry`, `Message`
[INFO] [stderr]  --> src/util.rs:6:30
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::protos::eraftpb::{Entry, Message};
[INFO] [stderr]   |                              ^^^^^  ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::storage::Storage`
[INFO] [stderr]  --> src/raft.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use super::storage::Storage;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `term`
[INFO] [stderr]    --> src/storage.rs:149:13
[INFO] [stderr]     |
[INFO] [stderr] 149 |         let term=meta.term;
[INFO] [stderr]     |             ^^^^ help: consider prefixing with an underscore: `_term`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `term`
[INFO] [stderr]    --> src/storage.rs:149:13
[INFO] [stderr]     |
[INFO] [stderr] 149 |         let term=meta.term;
[INFO] [stderr]     |             ^^^^ help: consider prefixing with an underscore: `_term`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/storage.rs:148:13
[INFO] [stderr]     |
[INFO] [stderr] 148 |         let mut meta=snapshot.take_metadata();
[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.rs:148:13
[INFO] [stderr]     |
[INFO] [stderr] 148 |         let mut meta=snapshot.take_metadata();
[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: constant item is never used: `NO_LIMIT`
[INFO] [stderr]  --> src/util.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub const NO_LIMIT: u64 = u64::MAX;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `format_kv_list`
[INFO] [stderr]   --> src/util.rs:26:15
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub(crate) fn format_kv_list(kv_list: &OwnedKVList) -> String {
[INFO] [stderr]    |               ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/raft_log.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn new(store: T, logger: Logger) -> RaftLog<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/storage.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn new(hard_state:HardState,conf_state:ConfState)->RaftState{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `initialized`
[INFO] [stderr]   --> src/storage.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn initialized(&self)->bool{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `raft_state`
[INFO] [stderr]   --> src/storage.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     raft_state:RaftState,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `entries`
[INFO] [stderr]   --> src/storage.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     entries:Vec<Entry>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `snapshot_metadata`
[INFO] [stderr]   --> src/storage.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     snapshot_metadata:SnapshotMetadata,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `trigger_snap_unavailable`
[INFO] [stderr]   --> src/storage.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 |     trigger_snap_unavailable:bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_hardstate`
[INFO] [stderr]   --> src/storage.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 |     pub fn set_hardstate(&mut self,hs:HardState){
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `hard_state`
[INFO] [stderr]   --> src/storage.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub fn hard_state(&self)->&HardState{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `mut_hard_state`
[INFO] [stderr]    --> src/storage.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     pub fn mut_hard_state(&mut self)->&mut HardState{
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `commit_to`
[INFO] [stderr]    --> src/storage.rs:107:5
[INFO] [stderr]     |
[INFO] [stderr] 107 |     pub fn commit_to(&mut self,index:u64)->errors::Result<()>{
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_conf_state`
[INFO] [stderr]    --> src/storage.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn set_conf_state(&mut self,cs:ConfState,pending_membership_change:Option<(ConfState,u64)>){
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `has_entry_at`
[INFO] [stderr]    --> src/storage.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     fn has_entry_at(&self,index:u64)->bool{
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `first_index`
[INFO] [stderr]    --> src/storage.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn first_index(&self)->u64{
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `last_index`
[INFO] [stderr]    --> src/storage.rs:136:5
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn last_index(&self)->u64{
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `NO_LIMIT`
[INFO] [stderr]  --> src/util.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub const NO_LIMIT: u64 = u64::MAX;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `apply_snapshot`
[INFO] [stderr]    --> src/storage.rs:147:5
[INFO] [stderr]     |
[INFO] [stderr] 147 |     pub fn apply_snapshot(&mut self,mut snapshot:Snapshot)->errors::Result<()>{
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]    --> src/errors.rs:148:1
[INFO] [stderr]     |
[INFO] [stderr] 148 | pub type Result<T> = result::Result<T, Error>;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/log_unstable.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn new(offset: u64, logger: Logger) -> Unstable {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `stable_to`
[INFO] [stderr]   --> src/log_unstable.rs:66:5
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn stable_to(&mut self, idx: u64, term: u64) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `stable_snap_to`
[INFO] [stderr]   --> src/log_unstable.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     pub fn stable_snap_to(&mut self, idx: u64) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `restore`
[INFO] [stderr]   --> src/log_unstable.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     pub fn restore(&mut self, snap: Snapshot) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `truncate_and_append`
[INFO] [stderr]   --> src/log_unstable.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub fn truncate_and_append(&mut self, ents: &[Entry]) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `slice`
[INFO] [stderr]    --> src/log_unstable.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn slice(&self, lo: u64, hi: u64) -> &[Entry] {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `must_check_outofbounds`
[INFO] [stderr]    --> src/log_unstable.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     pub fn must_check_outofbounds(&self, lo: u64, hi: u64) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `format_kv_list`
[INFO] [stderr]   --> src/util.rs:26:15
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub(crate) fn format_kv_list(kv_list: &OwnedKVList) -> String {
[INFO] [stderr]    |               ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/raft_log.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn new(store: T, logger: Logger) -> RaftLog<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/storage.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn new(hard_state:HardState,conf_state:ConfState)->RaftState{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `initialized`
[INFO] [stderr]   --> src/storage.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn initialized(&self)->bool{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `raft_state`
[INFO] [stderr]   --> src/storage.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     raft_state:RaftState,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `entries`
[INFO] [stderr]   --> src/storage.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     entries:Vec<Entry>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `snapshot_metadata`
[INFO] [stderr]   --> src/storage.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     snapshot_metadata:SnapshotMetadata,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `trigger_snap_unavailable`
[INFO] [stderr]   --> src/storage.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 |     trigger_snap_unavailable:bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_hardstate`
[INFO] [stderr]   --> src/storage.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 |     pub fn set_hardstate(&mut self,hs:HardState){
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `hard_state`
[INFO] [stderr]   --> src/storage.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub fn hard_state(&self)->&HardState{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `mut_hard_state`
[INFO] [stderr]    --> src/storage.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     pub fn mut_hard_state(&mut self)->&mut HardState{
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `commit_to`
[INFO] [stderr]    --> src/storage.rs:107:5
[INFO] [stderr]     |
[INFO] [stderr] 107 |     pub fn commit_to(&mut self,index:u64)->errors::Result<()>{
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_conf_state`
[INFO] [stderr]    --> src/storage.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn set_conf_state(&mut self,cs:ConfState,pending_membership_change:Option<(ConfState,u64)>){
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `has_entry_at`
[INFO] [stderr]    --> src/storage.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     fn has_entry_at(&self,index:u64)->bool{
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `first_index`
[INFO] [stderr]    --> src/storage.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn first_index(&self)->u64{
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `last_index`
[INFO] [stderr]    --> src/storage.rs:136:5
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn last_index(&self)->u64{
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `apply_snapshot`
[INFO] [stderr]    --> src/storage.rs:147:5
[INFO] [stderr]     |
[INFO] [stderr] 147 |     pub fn apply_snapshot(&mut self,mut snapshot:Snapshot)->errors::Result<()>{
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]    --> src/errors.rs:148:1
[INFO] [stderr]     |
[INFO] [stderr] 148 | pub type Result<T> = result::Result<T, Error>;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/log_unstable.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn new(offset: u64, logger: Logger) -> Unstable {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `maybe_first_index`
[INFO] [stderr]   --> src/log_unstable.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn maybe_first_index(&self) -> Option<u64> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `maybe_last_index`
[INFO] [stderr]   --> src/log_unstable.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn maybe_last_index(&self) -> Option<u64> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `maybe_term`
[INFO] [stderr]   --> src/log_unstable.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn maybe_term(&self, idx: u64) -> Option<u64> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `stable_to`
[INFO] [stderr]   --> src/log_unstable.rs:66:5
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn stable_to(&mut self, idx: u64, term: u64) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `stable_snap_to`
[INFO] [stderr]   --> src/log_unstable.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     pub fn stable_snap_to(&mut self, idx: u64) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `restore`
[INFO] [stderr]   --> src/log_unstable.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     pub fn restore(&mut self, snap: Snapshot) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `truncate_and_append`
[INFO] [stderr]   --> src/log_unstable.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub fn truncate_and_append(&mut self, ents: &[Entry]) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `slice`
[INFO] [stderr]    --> src/log_unstable.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn slice(&self, lo: u64, hi: u64) -> &[Entry] {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `must_check_outofbounds`
[INFO] [stderr]    --> src/log_unstable.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 125 |     pub fn must_check_outofbounds(&self, lo: u64, hi: u64) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 13s
[INFO] running `"docker" "inspect" "ed85ebe73bb8a4c0e4ecaf303b981f3b503a154d0dcc190820a2c9544eedfeff"`
[INFO] running `"docker" "rm" "-f" "ed85ebe73bb8a4c0e4ecaf303b981f3b503a154d0dcc190820a2c9544eedfeff"`
[INFO] [stdout] ed85ebe73bb8a4c0e4ecaf303b981f3b503a154d0dcc190820a2c9544eedfeff