[INFO] cloning repository https://github.com/coolyjg/madraft_v2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/coolyjg/madraft_v2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoolyjg%2Fmadraft_v2", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1db8d6d6dd4f78e579a1d126fb235ebae248abd8
[INFO] building coolyjg/madraft_v2 against master#a7f375789bab1a4e4a291c963081a8ca7d2b6bd7 for pr-93180
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoolyjg%2Fmadraft_v2" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/coolyjg/madraft_v2 on toolchain a7f375789bab1a4e4a291c963081a8ca7d2b6bd7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/coolyjg/madraft_v2
[INFO] finished tweaking git repo https://github.com/coolyjg/madraft_v2
[INFO] tweaked toml for git repo https://github.com/coolyjg/madraft_v2 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/coolyjg/madraft_v2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stdout] 51ed645d1c7c1ea4f8cc8fe0e4430d9a381c539fa1591ceefeb7185600968f4e
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[INFO] running `Command { std: "docker" "inspect" "51ed645d1c7c1ea4f8cc8fe0e4430d9a381c539fa1591ceefeb7185600968f4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51ed645d1c7c1ea4f8cc8fe0e4430d9a381c539fa1591ceefeb7185600968f4e", kill_on_drop: false }`
[INFO] [stdout] 51ed645d1c7c1ea4f8cc8fe0e4430d9a381c539fa1591ceefeb7185600968f4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ad413666a6554b56507de52710222c1ccc09a1a487e1bd3266e4331f2a9a12f
[INFO] running `Command { std: "docker" "start" "-a" "3ad413666a6554b56507de52710222c1ccc09a1a487e1bd3266e4331f2a9a12f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-core v0.3.18
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling futures-task v0.3.18
[INFO] [stderr]    Compiling futures-channel v0.3.18
[INFO] [stderr]    Compiling futures-util v0.3.18
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling futures-sink v0.3.18
[INFO] [stderr]    Compiling futures-io v0.3.18
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling naive-timer v0.2.0
[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling futures-macro v0.3.18
[INFO] [stderr]    Compiling madsim-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling futures-executor v0.3.18
[INFO] [stderr]    Compiling futures v0.3.18
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling madsim v0.1.2
[INFO] [stderr]    Compiling madraft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stdout]  --> src/kvraft/client.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde::{Serialize, Deserialize};
[INFO] [stdout]   |             ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryFutureExt`
[INFO] [stdout]  --> src/kvraft/server.rs:3:60
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::{channel::mpsc::UnboundedReceiver, StreamExt, TryFutureExt};
[INFO] [stdout]   |                                                            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `de::VariantAccess`
[INFO] [stdout]  --> src/kvraft/server.rs:5:37
[INFO] [stdout]   |
[INFO] [stdout] 5 | use serde::{Deserialize, Serialize, de::VariantAccess};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Weak`, `hash::Hash`
[INFO] [stdout]   --> src/kvraft/server.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 |     sync::{Arc, Mutex, Weak, atomic::{AtomicU64, Ordering}}, collections::HashMap, time::Duration, hash::Hash,
[INFO] [stdout]    |                        ^^^^                                                                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TryFutureExt`, `io::SeeKRelative`, `select_with_strategy`
[INFO] [stdout]  --> src/raft/raft.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use futures::{StreamExt, TryFutureExt, channel::mpsc, io::SeeKRelative, stream::{FuturesUnordered, select_with_strategy}};
[INFO] [stdout]   |                          ^^^^^^^^^^^^                 ^^^^^^^^^^^^^^^^                             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `hash::Hash`, `ops::BitOr`
[INFO] [stdout]  --> src/shard_ctrler/server.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::{HashMap, BTreeMap}, hash::Hash, ops::BitOr};
[INFO] [stdout]   |                                             ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::TryFutureExt`
[INFO] [stdout]  --> src/shard_ctrler/server.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::TryFutureExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/shardkv/server.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         todo!("construct ShardKv");
[INFO] [stdout]    |         -------------------------- any code following this expression is unreachable
[INFO] [stdout] 20 |         let inner = Server::new(servers, me, max_raft_state).await;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `me`
[INFO] [stdout]    --> src/raft/raft.rs:391:13
[INFO] [stdout]     |
[INFO] [stdout] 391 |         let me = {
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_me`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/shardkv/client.rs:15:29
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub async fn get(&self, key: String) -> String {
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/shardkv/client.rs:19:29
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub async fn put(&self, key: String, value: String) {
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/shardkv/client.rs:19:42
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub async fn put(&self, key: String, value: String) {
[INFO] [stdout]    |                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/shardkv/client.rs:23:32
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub async fn append(&self, key: String, value: String) {
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/shardkv/client.rs:23:45
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub async fn append(&self, key: String, value: String) {
[INFO] [stdout]    |                                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctrl_ck`
[INFO] [stdout]   --> src/shardkv/server.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         ctrl_ck: CtrlerClerk,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ctrl_ck`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `servers`
[INFO] [stdout]   --> src/shardkv/server.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |         servers: Vec<SocketAddr>,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_servers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gid`
[INFO] [stdout]   --> src/shardkv/server.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         gid: u64,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_gid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `me`
[INFO] [stdout]   --> src/shardkv/server.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         me: usize,
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_me`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_raft_state`
[INFO] [stdout]   --> src/shardkv/server.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         max_raft_state: Option<usize>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_raft_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmd`
[INFO] [stdout]   --> src/shardkv/server.rs:34:25
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn apply(&mut self, cmd: ClientRst<Self::Command>) -> Option<Self::Output> {
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_cmd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmd`
[INFO] [stdout]   --> src/shardkv/server.rs:37:21
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn check(&self, cmd: ClientRst<Self::Command>) -> Option<Self::Output>{
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_cmd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_state`
[INFO] [stdout]    --> src/raft/raft.rs:466:8
[INFO] [stdout]     |
[INFO] [stdout] 466 |     fn get_state(&self) -> Role {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ctrl_ck`
[INFO] [stdout]  --> src/shardkv/client.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     ctrl_ck: CtrlerClerk,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `inner`
[INFO] [stdout]  --> src/shardkv/server.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     inner: Arc<Server<ShardKv>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `key2shard`
[INFO] [stdout]   --> src/shardkv/mod.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn key2shard(key: &str) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Req` should have a snake case name
[INFO] [stdout]   --> src/kvraft/msg.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub Req: T,
[INFO] [stdout]    |         ^^^ help: convert the identifier to snake case: `req`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 26 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.39s
[INFO] running `Command { std: "docker" "inspect" "3ad413666a6554b56507de52710222c1ccc09a1a487e1bd3266e4331f2a9a12f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ad413666a6554b56507de52710222c1ccc09a1a487e1bd3266e4331f2a9a12f", kill_on_drop: false }`
[INFO] [stdout] 3ad413666a6554b56507de52710222c1ccc09a1a487e1bd3266e4331f2a9a12f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+a7f375789bab1a4e4a291c963081a8ca7d2b6bd7" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfc96679ad0041cb61b539b859d76917f2afc1716e3f23122675bdcf4c68dd22
[INFO] running `Command { std: "docker" "start" "-a" "dfc96679ad0041cb61b539b859d76917f2afc1716e3f23122675bdcf4c68dd22", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stdout]  --> src/kvraft/client.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde::{Serialize, Deserialize};
[INFO] [stdout]   |             ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryFutureExt`
[INFO] [stdout]  --> src/kvraft/server.rs:3:60
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::{channel::mpsc::UnboundedReceiver, StreamExt, TryFutureExt};
[INFO] [stdout]   |                                                            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `de::VariantAccess`
[INFO] [stdout]  --> src/kvraft/server.rs:5:37
[INFO] [stdout]   |
[INFO] [stdout] 5 | use serde::{Deserialize, Serialize, de::VariantAccess};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Weak`, `hash::Hash`
[INFO] [stdout]   --> src/kvraft/server.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 |     sync::{Arc, Mutex, Weak, atomic::{AtomicU64, Ordering}}, collections::HashMap, time::Duration, hash::Hash,
[INFO] [stdout]    |                        ^^^^                                                                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TryFutureExt`, `io::SeeKRelative`, `select_with_strategy`
[INFO] [stdout]  --> src/raft/raft.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use futures::{StreamExt, TryFutureExt, channel::mpsc, io::SeeKRelative, stream::{FuturesUnordered, select_with_strategy}};
[INFO] [stdout]   |                          ^^^^^^^^^^^^                 ^^^^^^^^^^^^^^^^                             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `hash::Hash`, `ops::BitOr`
[INFO] [stdout]  --> src/shard_ctrler/server.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::{HashMap, BTreeMap}, hash::Hash, ops::BitOr};
[INFO] [stdout]   |                                             ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::TryFutureExt`
[INFO] [stdout]  --> src/shard_ctrler/server.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::TryFutureExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/shardkv/server.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         todo!("construct ShardKv");
[INFO] [stdout]    |         -------------------------- any code following this expression is unreachable
[INFO] [stdout] 20 |         let inner = Server::new(servers, me, max_raft_state).await;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `me`
[INFO] [stdout]    --> src/raft/raft.rs:391:13
[INFO] [stdout]     |
[INFO] [stdout] 391 |         let me = {
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_me`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling madraft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/shardkv/client.rs:15:29
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub async fn get(&self, key: String) -> String {
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/shardkv/client.rs:19:29
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub async fn put(&self, key: String, value: String) {
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/shardkv/client.rs:19:42
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub async fn put(&self, key: String, value: String) {
[INFO] [stdout]    |                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/shardkv/client.rs:23:32
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub async fn append(&self, key: String, value: String) {
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/shardkv/client.rs:23:45
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub async fn append(&self, key: String, value: String) {
[INFO] [stdout]    |                                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctrl_ck`
[INFO] [stdout]   --> src/shardkv/server.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         ctrl_ck: CtrlerClerk,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ctrl_ck`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `servers`
[INFO] [stdout]   --> src/shardkv/server.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |         servers: Vec<SocketAddr>,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_servers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gid`
[INFO] [stdout]   --> src/shardkv/server.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         gid: u64,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_gid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `me`
[INFO] [stdout]   --> src/shardkv/server.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         me: usize,
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_me`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_raft_state`
[INFO] [stdout]   --> src/shardkv/server.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         max_raft_state: Option<usize>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_raft_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmd`
[INFO] [stdout]   --> src/shardkv/server.rs:34:25
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn apply(&mut self, cmd: ClientRst<Self::Command>) -> Option<Self::Output> {
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_cmd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmd`
[INFO] [stdout]   --> src/shardkv/server.rs:37:21
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn check(&self, cmd: ClientRst<Self::Command>) -> Option<Self::Output>{
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_cmd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_state`
[INFO] [stdout]    --> src/raft/raft.rs:466:8
[INFO] [stdout]     |
[INFO] [stdout] 466 |     fn get_state(&self) -> Role {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ctrl_ck`
[INFO] [stdout]  --> src/shardkv/client.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     ctrl_ck: CtrlerClerk,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `inner`
[INFO] [stdout]  --> src/shardkv/server.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     inner: Arc<Server<ShardKv>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `key2shard`
[INFO] [stdout]   --> src/shardkv/mod.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn key2shard(key: &str) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Req` should have a snake case name
[INFO] [stdout]   --> src/kvraft/msg.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub Req: T,
[INFO] [stdout]    |         ^^^ help: convert the identifier to snake case: `req`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 26 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize`, `Serialize`
[INFO] [stdout]  --> src/kvraft/client.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde::{Serialize, Deserialize};
[INFO] [stdout]   |             ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryFutureExt`
[INFO] [stdout]  --> src/kvraft/server.rs:3:60
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::{channel::mpsc::UnboundedReceiver, StreamExt, TryFutureExt};
[INFO] [stdout]   |                                                            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `de::VariantAccess`
[INFO] [stdout]  --> src/kvraft/server.rs:5:37
[INFO] [stdout]   |
[INFO] [stdout] 5 | use serde::{Deserialize, Serialize, de::VariantAccess};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Weak`, `hash::Hash`
[INFO] [stdout]   --> src/kvraft/server.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 |     sync::{Arc, Mutex, Weak, atomic::{AtomicU64, Ordering}}, collections::HashMap, time::Duration, hash::Hash,
[INFO] [stdout]    |                        ^^^^                                                                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TryFutureExt`, `io::SeeKRelative`, `select_with_strategy`
[INFO] [stdout]  --> src/raft/raft.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use futures::{StreamExt, TryFutureExt, channel::mpsc, io::SeeKRelative, stream::{FuturesUnordered, select_with_strategy}};
[INFO] [stdout]   |                          ^^^^^^^^^^^^                 ^^^^^^^^^^^^^^^^                             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `hash::Hash`, `ops::BitOr`
[INFO] [stdout]  --> src/shard_ctrler/server.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::{HashMap, BTreeMap}, hash::Hash, ops::BitOr};
[INFO] [stdout]   |                                             ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::TryFutureExt`
[INFO] [stdout]  --> src/shard_ctrler/server.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::TryFutureExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/shardkv/server.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         todo!("construct ShardKv");
[INFO] [stdout]    |         -------------------------- any code following this expression is unreachable
[INFO] [stdout] 20 |         let inner = Server::new(servers, me, max_raft_state).await;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `me`
[INFO] [stdout]    --> src/raft/raft.rs:391:13
[INFO] [stdout]     |
[INFO] [stdout] 391 |         let me = {
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_me`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/shardkv/client.rs:15:29
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub async fn get(&self, key: String) -> String {
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/shardkv/client.rs:19:29
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub async fn put(&self, key: String, value: String) {
[INFO] [stdout]    |                             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/shardkv/client.rs:19:42
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub async fn put(&self, key: String, value: String) {
[INFO] [stdout]    |                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/shardkv/client.rs:23:32
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub async fn append(&self, key: String, value: String) {
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/shardkv/client.rs:23:45
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub async fn append(&self, key: String, value: String) {
[INFO] [stdout]    |                                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctrl_ck`
[INFO] [stdout]   --> src/shardkv/server.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         ctrl_ck: CtrlerClerk,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ctrl_ck`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `servers`
[INFO] [stdout]   --> src/shardkv/server.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |         servers: Vec<SocketAddr>,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_servers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gid`
[INFO] [stdout]   --> src/shardkv/server.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         gid: u64,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_gid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `me`
[INFO] [stdout]   --> src/shardkv/server.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         me: usize,
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_me`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_raft_state`
[INFO] [stdout]   --> src/shardkv/server.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         max_raft_state: Option<usize>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_raft_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmd`
[INFO] [stdout]   --> src/shardkv/server.rs:34:25
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn apply(&mut self, cmd: ClientRst<Self::Command>) -> Option<Self::Output> {
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_cmd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cmd`
[INFO] [stdout]   --> src/shardkv/server.rs:37:21
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn check(&self, cmd: ClientRst<Self::Command>) -> Option<Self::Output>{
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_cmd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_state`
[INFO] [stdout]    --> src/raft/raft.rs:466:8
[INFO] [stdout]     |
[INFO] [stdout] 466 |     fn get_state(&self) -> Role {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ctrl_ck`
[INFO] [stdout]  --> src/shardkv/client.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     ctrl_ck: CtrlerClerk,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `inner`
[INFO] [stdout]  --> src/shardkv/server.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     inner: Arc<Server<ShardKv>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Req` should have a snake case name
[INFO] [stdout]   --> src/kvraft/msg.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub Req: T,
[INFO] [stdout]    |         ^^^ help: convert the identifier to snake case: `req`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 13.15s
[INFO] running `Command { std: "docker" "inspect" "dfc96679ad0041cb61b539b859d76917f2afc1716e3f23122675bdcf4c68dd22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfc96679ad0041cb61b539b859d76917f2afc1716e3f23122675bdcf4c68dd22", kill_on_drop: false }`
[INFO] [stdout] dfc96679ad0041cb61b539b859d76917f2afc1716e3f23122675bdcf4c68dd22