[INFO] cloning repository https://github.com/sid2001/Raft-KVS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sid2001/Raft-KVS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsid2001%2FRaft-KVS", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f9d38b82c1fbc22abbfcce7fb3513cfdd54a4fa
[INFO] building sid2001/Raft-KVS against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsid2001%2FRaft-KVS" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sid2001/Raft-KVS
[INFO] finished tweaking git repo https://github.com/sid2001/Raft-KVS
[INFO] tweaked toml for git repo https://github.com/sid2001/Raft-KVS written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sid2001/Raft-KVS on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sid2001/Raft-KVS already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]    --> src/main.rs:196:5
[INFO] [stdout]     |
[INFO] [stdout] 196 |     state: Arc<Mutex<State>>,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heartbeat`
[INFO] [stdout]    --> src/main.rs:418:21
[INFO] [stdout]     |
[INFO] [stdout] 418 |         tokio::pin!(heartbeat);
[INFO] [stdout]     |                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: `heartbeat` is captured in macro and introduced a unused variable
[INFO] [stdout]    --> src/main.rs:418:9
[INFO] [stdout]     |
[INFO] [stdout] 418 |         tokio::pin!(heartbeat);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: this warning originates in the macro `tokio::pin` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sa_no`
[INFO] [stdout]    --> src/main.rs:424:14
[INFO] [stdout]     |
[INFO] [stdout] 424 |         for (sa_no, (_, ep)) in &mut self.servers.iter_mut().enumerate() {
[INFO] [stdout]     |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_sa_no`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:619:44
[INFO] [stdout]     |
[INFO] [stdout] 619 | ...                   let (mut term, mut logger, mut state) = {
[INFO] [stdout]     |                                      ----^^^^^^
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/main.rs:348:20
[INFO] [stdout]     |
[INFO] [stdout] 348 |     fn acquire_tls(&self) -> Option<(MutexGuard<Term>, MutexGuard<Logger>, MutexGuard<State>)> {
[INFO] [stdout]     |                    ^^^^^             ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |                 |                 |
[INFO] [stdout]     |                    |                 |                 the same lifetime is hidden here
[INFO] [stdout]     |                    |                 the same lifetime is hidden here
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 348 |     fn acquire_tls(&self) -> Option<(MutexGuard<'_, Term>, MutexGuard<'_, Logger>, MutexGuard<'_, State>)> {
[INFO] [stdout]     |                                                 +++                   +++                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:416:9
[INFO] [stdout]     |
[INFO] [stdout] 416 |         tx_ws.send(State::Follower);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 416 |         let _ = tx_ws.send(State::Follower);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:543:41
[INFO] [stdout]     |
[INFO] [stdout] 543 | ...                   tx_ws.send(State::Follower);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 543 |                                         let _ = tx_ws.send(State::Follower);
[INFO] [stdout]     |                                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:557:41
[INFO] [stdout]     |
[INFO] [stdout] 557 | ...                   tx_ws.send(State::Leader);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 557 |                                         let _ = tx_ws.send(State::Leader);
[INFO] [stdout]     |                                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:589:37
[INFO] [stdout]     |
[INFO] [stdout] 589 | ...                   tx_ws.send(State::Follower);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 589 |                                     let _ = tx_ws.send(State::Follower);
[INFO] [stdout]     |                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:595:45
[INFO] [stdout]     |
[INFO] [stdout] 595 | ...                   logger.commit(e.commit_index);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 595 |                                             let _ = logger.commit(e.commit_index);
[INFO] [stdout]     |                                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:659:29
[INFO] [stdout]     |
[INFO] [stdout] 659 | ...                   tx_ws.send((*state).clone());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 659 |                             let _ = tx_ws.send((*state).clone());
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 30s
[INFO] running `Command { std: "docker" "inspect" "504ab2de54990d0aa8917526d862a1cb09d20594d61a4b1b17d5b474f689dce3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "504ab2de54990d0aa8917526d862a1cb09d20594d61a4b1b17d5b474f689dce3", kill_on_drop: false }`
[INFO] [stdout] 504ab2de54990d0aa8917526d862a1cb09d20594d61a4b1b17d5b474f689dce3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a6fd7fd1fb12dc994c1e5fce97c09df361e7dcf503d2bbf6d96718133454213
[INFO] running `Command { std: "docker" "start" "-a" "2a6fd7fd1fb12dc994c1e5fce97c09df361e7dcf503d2bbf6d96718133454213", kill_on_drop: false }`
[INFO] [stderr]    Compiling raft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]    --> src/main.rs:196:5
[INFO] [stdout]     |
[INFO] [stdout] 196 |     state: Arc<Mutex<State>>,
[INFO] [stdout]     |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heartbeat`
[INFO] [stdout]    --> src/main.rs:418:21
[INFO] [stdout]     |
[INFO] [stdout] 418 |         tokio::pin!(heartbeat);
[INFO] [stdout]     |                     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: `heartbeat` is captured in macro and introduced a unused variable
[INFO] [stdout]    --> src/main.rs:418:9
[INFO] [stdout]     |
[INFO] [stdout] 418 |         tokio::pin!(heartbeat);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: this warning originates in the macro `tokio::pin` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sa_no`
[INFO] [stdout]    --> src/main.rs:424:14
[INFO] [stdout]     |
[INFO] [stdout] 424 |         for (sa_no, (_, ep)) in &mut self.servers.iter_mut().enumerate() {
[INFO] [stdout]     |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_sa_no`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:619:44
[INFO] [stdout]     |
[INFO] [stdout] 619 | ...                   let (mut term, mut logger, mut state) = {
[INFO] [stdout]     |                                      ----^^^^^^
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/main.rs:348:20
[INFO] [stdout]     |
[INFO] [stdout] 348 |     fn acquire_tls(&self) -> Option<(MutexGuard<Term>, MutexGuard<Logger>, MutexGuard<State>)> {
[INFO] [stdout]     |                    ^^^^^             ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |                 |                 |
[INFO] [stdout]     |                    |                 |                 the same lifetime is hidden here
[INFO] [stdout]     |                    |                 the same lifetime is hidden here
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 348 |     fn acquire_tls(&self) -> Option<(MutexGuard<'_, Term>, MutexGuard<'_, Logger>, MutexGuard<'_, State>)> {
[INFO] [stdout]     |                                                 +++                   +++                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:416:9
[INFO] [stdout]     |
[INFO] [stdout] 416 |         tx_ws.send(State::Follower);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 416 |         let _ = tx_ws.send(State::Follower);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:543:41
[INFO] [stdout]     |
[INFO] [stdout] 543 | ...                   tx_ws.send(State::Follower);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 543 |                                         let _ = tx_ws.send(State::Follower);
[INFO] [stdout]     |                                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:557:41
[INFO] [stdout]     |
[INFO] [stdout] 557 | ...                   tx_ws.send(State::Leader);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 557 |                                         let _ = tx_ws.send(State::Leader);
[INFO] [stdout]     |                                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:589:37
[INFO] [stdout]     |
[INFO] [stdout] 589 | ...                   tx_ws.send(State::Follower);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 589 |                                     let _ = tx_ws.send(State::Follower);
[INFO] [stdout]     |                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:595:45
[INFO] [stdout]     |
[INFO] [stdout] 595 | ...                   logger.commit(e.commit_index);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 595 |                                             let _ = logger.commit(e.commit_index);
[INFO] [stdout]     |                                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:659:29
[INFO] [stdout]     |
[INFO] [stdout] 659 | ...                   tx_ws.send((*state).clone());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 659 |                             let _ = tx_ws.send((*state).clone());
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "2a6fd7fd1fb12dc994c1e5fce97c09df361e7dcf503d2bbf6d96718133454213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a6fd7fd1fb12dc994c1e5fce97c09df361e7dcf503d2bbf6d96718133454213", kill_on_drop: false }`
[INFO] [stdout] 2a6fd7fd1fb12dc994c1e5fce97c09df361e7dcf503d2bbf6d96718133454213
