[INFO] cloning repository https://github.com/kobutri/nats_benchmark
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kobutri/nats_benchmark" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkobutri%2Fnats_benchmark", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkobutri%2Fnats_benchmark'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cb9297064c86b1d5669a9115f4cc9ff1e65208e4
[INFO] building kobutri/nats_benchmark against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkobutri%2Fnats_benchmark" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kobutri/nats_benchmark
[INFO] finished tweaking git repo https://github.com/kobutri/nats_benchmark
[INFO] tweaked toml for git repo https://github.com/kobutri/nats_benchmark written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kobutri/nats_benchmark 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/kobutri/nats_benchmark 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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_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" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38483bca0d95896cb045d41e14a58d2e178fc0fc28e4c04540737ae8b73a1701
[INFO] running `Command { std: "docker" "start" "-a" "38483bca0d95896cb045d41e14a58d2e178fc0fc28e4c04540737ae8b73a1701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38483bca0d95896cb045d41e14a58d2e178fc0fc28e4c04540737ae8b73a1701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38483bca0d95896cb045d41e14a58d2e178fc0fc28e4c04540737ae8b73a1701", kill_on_drop: false }`
[INFO] [stdout] 38483bca0d95896cb045d41e14a58d2e178fc0fc28e4c04540737ae8b73a1701
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16fb5222d979b3e661521e391039f8a5bc273013255183e4ef6c0935eb25f814
[INFO] running `Command { std: "docker" "start" "-a" "16fb5222d979b3e661521e391039f8a5bc273013255183e4ef6c0935eb25f814", kill_on_drop: false }`
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[INFO] [stderr]    Compiling cc v1.2.25
[INFO] [stderr]    Compiling getrandom v0.2.16
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[INFO] [stderr]    Compiling rustls v0.23.27
[INFO] [stderr]    Compiling curve25519-dalek-derive v0.1.1
[INFO] [stderr]    Compiling bitflags v2.9.1
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[INFO] [stderr]    Compiling percent-encoding v2.3.1
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[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
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[INFO] [stderr]    Compiling darling v0.20.11
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[INFO] [stderr]    Compiling async-nats v0.41.0
[INFO] [stderr]    Compiling sender v0.1.0 (/opt/rustwide/workdir/sender)
[INFO] [stderr]    Compiling receiver v0.1.0 (/opt/rustwide/workdir/receiver)
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> sender/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> receiver/src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> sender/src/main.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     for i in 0..args.pool_size {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> receiver/src/main.rs:520:9
[INFO] [stdout]     |
[INFO] [stdout] 520 |     for i in 0..args.pool_size {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elapsed`
[INFO] [stdout]    --> receiver/src/main.rs:593:25
[INFO] [stdout]     |
[INFO] [stdout] 593 |                     let elapsed = last_report.elapsed().as_secs_f64();
[INFO] [stdout]     |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elapsed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `messages` is never read
[INFO] [stdout]   --> receiver/src/main.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 75 | struct StreamStats {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] 76 |     messages: u64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `StreamStats` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `update` is never used
[INFO] [stdout]   --> receiver/src/main.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | impl ThroughputData {
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 99 |     fn update(&mut self, current_throughput: f64, total_messages: u64) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 44.32s
[INFO] running `Command { std: "docker" "inspect" "16fb5222d979b3e661521e391039f8a5bc273013255183e4ef6c0935eb25f814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16fb5222d979b3e661521e391039f8a5bc273013255183e4ef6c0935eb25f814", kill_on_drop: false }`
[INFO] [stdout] 16fb5222d979b3e661521e391039f8a5bc273013255183e4ef6c0935eb25f814
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ea6cddfb4228e3e9491023976f0b083d313ee35aaa1da4dff0166a90d8711db4
[INFO] running `Command { std: "docker" "start" "-a" "ea6cddfb4228e3e9491023976f0b083d313ee35aaa1da4dff0166a90d8711db4", kill_on_drop: false }`
[INFO] [stderr]    Compiling sender v0.1.0 (/opt/rustwide/workdir/sender)
[INFO] [stderr]    Compiling receiver v0.1.0 (/opt/rustwide/workdir/receiver)
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> sender/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> receiver/src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> sender/src/main.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     for i in 0..args.pool_size {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> receiver/src/main.rs:520:9
[INFO] [stdout]     |
[INFO] [stdout] 520 |     for i in 0..args.pool_size {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elapsed`
[INFO] [stdout]    --> receiver/src/main.rs:593:25
[INFO] [stdout]     |
[INFO] [stdout] 593 |                     let elapsed = last_report.elapsed().as_secs_f64();
[INFO] [stdout]     |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elapsed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `messages` is never read
[INFO] [stdout]   --> receiver/src/main.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 75 | struct StreamStats {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] 76 |     messages: u64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `StreamStats` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `update` is never used
[INFO] [stdout]   --> receiver/src/main.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | impl ThroughputData {
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 99 |     fn update(&mut self, current_throughput: f64, total_messages: u64) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "ea6cddfb4228e3e9491023976f0b083d313ee35aaa1da4dff0166a90d8711db4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea6cddfb4228e3e9491023976f0b083d313ee35aaa1da4dff0166a90d8711db4", kill_on_drop: false }`
[INFO] [stdout] ea6cddfb4228e3e9491023976f0b083d313ee35aaa1da4dff0166a90d8711db4