[INFO] cloning repository https://github.com/Paroxysmisch/simple-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/Paroxysmisch/simple-raft-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FParoxysmisch%2Fsimple-raft-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FParoxysmisch%2Fsimple-raft-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c07e788071bc9ed778db34039db8182bbb309dfb
[INFO] checking Paroxysmisch/simple-raft-rs/c07e788071bc9ed778db34039db8182bbb309dfb against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FParoxysmisch%2Fsimple-raft-rs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Paroxysmisch/simple-raft-rs on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Paroxysmisch/simple-raft-rs
[INFO] finished tweaking git repo https://github.com/Paroxysmisch/simple-raft-rs
[INFO] tweaked toml for git repo https://github.com/Paroxysmisch/simple-raft-rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Paroxysmisch/simple-raft-rs 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f9bddaae5b19c9daa416eda65b8856d62478ceaa6776d8507f23d91db0736bb
[INFO] running `Command { std: "docker" "start" "-a" "3f9bddaae5b19c9daa416eda65b8856d62478ceaa6776d8507f23d91db0736bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f9bddaae5b19c9daa416eda65b8856d62478ceaa6776d8507f23d91db0736bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f9bddaae5b19c9daa416eda65b8856d62478ceaa6776d8507f23d91db0736bb", kill_on_drop: false }`
[INFO] [stdout] 3f9bddaae5b19c9daa416eda65b8856d62478ceaa6776d8507f23d91db0736bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87ef591d79f5ad395d861aa96109a11d2ef59147cd0e4292983b5938b30d1a1e
[INFO] running `Command { std: "docker" "start" "-a" "87ef591d79f5ad395d861aa96109a11d2ef59147cd0e4292983b5938b30d1a1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking bytes v1.6.1
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking mio v1.0.1
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]     Checking tokio v1.39.1
[INFO] [stderr]     Checking simple-raft-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `Role` is never used
[INFO] [stdout]  --> src/raft.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum Role {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LogEntry` is never constructed
[INFO] [stdout]   --> src/raft.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct LogEntry {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Event` is never used
[INFO] [stdout]   --> src/raft.rs:15:6
[INFO] [stdout]    |
[INFO] [stdout] 15 | enum Event {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Raft` is never constructed
[INFO] [stdout]   --> src/raft.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct Raft {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/raft.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl Raft {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 47 |     fn new(id: u64, send_event_channels: &Vec<Sender<Event>>, recv_event_channel: Receiver<Event>) -> Raft {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Role` is never used
[INFO] [stdout]  --> src/raft.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum Role {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LogEntry` is never constructed
[INFO] [stdout]   --> src/raft.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct LogEntry {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Event` is never used
[INFO] [stdout]   --> src/raft.rs:15:6
[INFO] [stdout]    |
[INFO] [stdout] 15 | enum Event {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Raft` is never constructed
[INFO] [stdout]   --> src/raft.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct Raft {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/raft.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl Raft {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 47 |     fn new(id: u64, send_event_channels: &Vec<Sender<Event>>, recv_event_channel: Receiver<Event>) -> Raft {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.50s
[INFO] running `Command { std: "docker" "inspect" "87ef591d79f5ad395d861aa96109a11d2ef59147cd0e4292983b5938b30d1a1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87ef591d79f5ad395d861aa96109a11d2ef59147cd0e4292983b5938b30d1a1e", kill_on_drop: false }`
[INFO] [stdout] 87ef591d79f5ad395d861aa96109a11d2ef59147cd0e4292983b5938b30d1a1e