[INFO] cloning repository https://github.com/davlum/raft-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davlum/raft-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavlum%2Fraft-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavlum%2Fraft-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 55b92ad57e16e2ed2a35613a529155ff7e985dd6
[INFO] checking davlum/raft-rs against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavlum%2Fraft-rs" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/davlum/raft-rs on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/davlum/raft-rs
[INFO] finished tweaking git repo https://github.com/davlum/raft-rs
[INFO] tweaked toml for git repo https://github.com/davlum/raft-rs written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/davlum/raft-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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_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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c25ac89f8fad17bbff4b45cab89aa159018bd97ceb273d3aa72cc594aa5d313a
[INFO] running `Command { std: "docker" "start" "-a" "c25ac89f8fad17bbff4b45cab89aa159018bd97ceb273d3aa72cc594aa5d313a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c25ac89f8fad17bbff4b45cab89aa159018bd97ceb273d3aa72cc594aa5d313a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c25ac89f8fad17bbff4b45cab89aa159018bd97ceb273d3aa72cc594aa5d313a", kill_on_drop: false }`
[INFO] [stdout] c25ac89f8fad17bbff4b45cab89aa159018bd97ceb273d3aa72cc594aa5d313a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3b1f12781c5cfaf44ba23b9299e32f711bb4b0efe24f04795fe9248d212f0ef
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b3b1f12781c5cfaf44ba23b9299e32f711bb4b0efe24f04795fe9248d212f0ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking futures-sink v0.3.14
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]    Compiling serde_json v1.0.62
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking db-key v0.0.5
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]    Compiling crc32c v0.6.0
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking page_size v0.4.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking commitlog v0.1.3
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]    Compiling leveldb-sys v2.0.8
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking serde v1.0.123
[INFO] [stderr]     Checking leveldb v0.8.6
[INFO] [stderr]     Checking raftrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `LogError`
[INFO] [stdout]  --> src/node.rs:7:25
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::aplog::{Log, LogError};
[INFO] [stdout]   |                         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `LogError`
[INFO] [stdout]  --> src/node.rs:7:25
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::aplog::{Log, LogError};
[INFO] [stdout]   |                         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::info`
[INFO] [stdout]  --> src/test/integration.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     use log::info;
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MetadataStore`
[INFO] [stdout]  --> src/test/candidate.rs:5:43
[INFO] [stdout]   |
[INFO] [stdout] 5 |     use crate::metadata::{Metadata, Term, MetadataStore};
[INFO] [stdout]   |                                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MetadataStore`
[INFO] [stdout]   --> src/test/candidate.rs:58:43
[INFO] [stdout]    |
[INFO] [stdout] 58 |     use crate::metadata::{Metadata, Term, MetadataStore};
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::StreamExt`
[INFO] [stdout]   --> src/test/integration.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     use futures::StreamExt;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/node.rs:49:19
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub(crate) fn new() -> Self {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AppendError`
[INFO] [stdout]   --> src/aplog.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     AppendError(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AppendError`
[INFO] [stdout]   --> src/aplog.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     AppendError(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/test/follower.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |         node.log.append(&LogEntry{ i: 2, cmd: (), term: Term(1) });
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/test/follower.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |         node.log.append(&LogEntry{ i: 1, cmd: (), term: Term(2) });
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/test/follower.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |         node.log.append(&LogEntry{ i: 1, cmd: (), term: Term(1) });
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/test/follower.rs:183:9
[INFO] [stdout]     |
[INFO] [stdout] 183 |         node.log.append(&LogEntry{ i: 2, cmd: (), term: Term(1) });
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/test/follower.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |         node.log.append(&LogEntry{ i: 2, cmd: (), term: Term(1) });
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/test/follower.rs:225:9
[INFO] [stdout]     |
[INFO] [stdout] 225 |         node.log.append(&LogEntry{ i: 2, cmd: (), term: Term(1) });
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/test/follower.rs:341:9
[INFO] [stdout]     |
[INFO] [stdout] 341 |         node.log.append(&log);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/test/follower.rs:375:9
[INFO] [stdout]     |
[INFO] [stdout] 375 |         node.log.append(&log1);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/test/follower.rs:376:9
[INFO] [stdout]     |
[INFO] [stdout] 376 |         node.log.append(&log2);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/test/follower.rs:410:9
[INFO] [stdout]     |
[INFO] [stdout] 410 |         node.log.append(&log1);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/test/follower.rs:412:9
[INFO] [stdout]     |
[INFO] [stdout] 412 |         node.log.append(&log2);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/test/follower.rs:442:9
[INFO] [stdout]     |
[INFO] [stdout] 442 |         node.log.append(&log1);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/test/follower.rs:444:9
[INFO] [stdout]     |
[INFO] [stdout] 444 |         node.log.append(&log2);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AppendResp`, `Committed`
[INFO] [stdout]  --> examples/simple.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | use raftrs::rpc::{AppendResp, Committed};
[INFO] [stdout]   |                   ^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Client`
[INFO] [stdout]  --> examples/simple.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use raftrs::{run, Client};
[INFO] [stdout]   |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `db_key::from_u8`
[INFO] [stdout]  --> examples/dist_leveldb.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use db_key::from_u8;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]   --> examples/dist_leveldb.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | use log::{error, trace};
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.20s
[INFO] running `Command { std: "docker" "inspect" "b3b1f12781c5cfaf44ba23b9299e32f711bb4b0efe24f04795fe9248d212f0ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3b1f12781c5cfaf44ba23b9299e32f711bb4b0efe24f04795fe9248d212f0ef", kill_on_drop: false }`
[INFO] [stdout] b3b1f12781c5cfaf44ba23b9299e32f711bb4b0efe24f04795fe9248d212f0ef