[INFO] cloning repository https://github.com/Shubhrajyoti-Dey-FrosTiK/kvik
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Shubhrajyoti-Dey-FrosTiK/kvik" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShubhrajyoti-Dey-FrosTiK%2Fkvik", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShubhrajyoti-Dey-FrosTiK%2Fkvik'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3328563113274f556c607662e24ab3f78eefc0d3
[INFO] checking Shubhrajyoti-Dey-FrosTiK/kvik against master#ff647322379c48947c196639599067665ff9eb88 for pr-151539-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShubhrajyoti-Dey-FrosTiK%2Fkvik" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Shubhrajyoti-Dey-FrosTiK/kvik
[INFO] finished tweaking git repo https://github.com/Shubhrajyoti-Dey-FrosTiK/kvik
[INFO] tweaked toml for git repo https://github.com/Shubhrajyoti-Dey-FrosTiK/kvik written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Shubhrajyoti-Dey-FrosTiK/kvik on toolchain ff647322379c48947c196639599067665ff9eb88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff647322379c48947c196639599067665ff9eb88" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Shubhrajyoti-Dey-FrosTiK/kvik 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" "+ff647322379c48947c196639599067665ff9eb88" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-log v0.2.0
[INFO] [stderr]   Downloaded fnv v1.0.7
[INFO] [stderr]   Downloaded valuable v0.1.1
[INFO] [stderr]   Downloaded httparse v1.10.1
[INFO] [stderr]   Downloaded http-body v1.0.1
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.19
[INFO] [stderr]   Downloaded tracing-core v0.1.33
[INFO] [stderr]   Downloaded once_cell v1.21.3
[INFO] [stderr]   Downloaded sharded-slab v0.1.7
[INFO] [stderr]   Downloaded http v1.3.1
[INFO] [stderr]   Downloaded thread_local v1.1.8
[INFO] [stderr]   Downloaded tokio-macros v2.5.0
[INFO] [stderr]   Downloaded tracing-attributes v0.1.28
[INFO] [stderr]   Downloaded mime v0.3.17
[INFO] [stderr]   Downloaded pin-project-lite v0.2.16
[INFO] [stderr]   Downloaded sync_wrapper v1.0.2
[INFO] [stderr]   Downloaded log v0.4.27
[INFO] [stderr]   Downloaded pagerank_rs v0.1.0
[INFO] [stderr]   Downloaded lazy_static v1.5.0
[INFO] [stderr]   Downloaded futures-task v0.3.31
[INFO] [stderr]   Downloaded heck v0.5.0
[INFO] [stderr]   Downloaded want v0.3.1
[INFO] [stderr]   Downloaded tower-layer v0.3.3
[INFO] [stderr]   Downloaded cfg-if v1.0.0
[INFO] [stderr]   Downloaded futures-sink v0.3.31
[INFO] [stderr]   Downloaded strsim v0.11.1
[INFO] [stderr]   Downloaded itoa v1.0.15
[INFO] [stderr]   Downloaded windows-targets v0.52.6
[INFO] [stderr]   Downloaded httpdate v1.0.3
[INFO] [stderr]   Downloaded float-cmp v0.9.0
[INFO] [stderr]   Downloaded utf8parse v0.2.2
[INFO] [stderr]   Downloaded anstyle-query v1.1.2
[INFO] [stderr]   Downloaded pin-utils v0.1.0
[INFO] [stderr]   Downloaded wit-bindgen-rt v0.39.0
[INFO] [stderr]   Downloaded multimap v0.10.0
[INFO] [stderr]   Downloaded dotenv v0.15.0
[INFO] [stderr]   Downloaded anstyle-wincon v3.0.7
[INFO] [stderr]   Downloaded futures-core v0.3.31
[INFO] [stderr]   Downloaded try-lock v0.2.5
[INFO] [stderr]   Downloaded adler2 v2.0.0
[INFO] [stderr]   Downloaded fastrand v2.3.0
[INFO] [stderr]   Downloaded atomic-waker v1.1.2
[INFO] [stderr]   Downloaded errno v0.3.11
[INFO] [stderr]   Downloaded futures-io v0.3.31
[INFO] [stderr]   Downloaded equivalent v1.0.2
[INFO] [stderr]   Downloaded rand_chacha v0.3.1
[INFO] [stderr]   Downloaded scopeguard v1.2.0
[INFO] [stderr]   Downloaded anstyle v1.0.10
[INFO] [stderr]   Downloaded tower-service v0.3.3
[INFO] [stderr]   Downloaded autocfg v1.4.0
[INFO] [stderr]   Downloaded tonic-build v0.13.0
[INFO] [stderr]   Downloaded prost-derive v0.13.5
[INFO] [stderr]   Downloaded either v1.15.0
[INFO] [stderr]   Downloaded fixedbitset v0.5.7
[INFO] [stderr]   Downloaded colorchoice v1.0.3
[INFO] [stderr]   Downloaded futures-macro v0.3.31
[INFO] [stderr]   Downloaded percent-encoding v2.3.1
[INFO] [stderr]   Downloaded dirs-sys v0.3.7
[INFO] [stderr]   Downloaded winapi-util v0.1.9
[INFO] [stderr]   Downloaded clap_lex v0.7.4
[INFO] [stderr]   Downloaded nu-ansi-term v0.46.0
[INFO] [stderr]   Downloaded signature v1.6.4
[INFO] [stderr]   Downloaded same-file v1.0.6
[INFO] [stderr]   Downloaded dirs v3.0.2
[INFO] [stderr]   Downloaded redox_users v0.4.6
[INFO] [stderr]   Downloaded rand_chacha v0.9.0
[INFO] [stderr]   Downloaded microkv v0.2.9
[INFO] [stderr]   Downloaded secstr v0.4.0
[INFO] [stderr]   Downloaded overload v0.1.1
[INFO] [stderr]   Downloaded wasi v0.11.0+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded rustc-demangle v0.1.24
[INFO] [stderr]   Downloaded prost v0.13.5
[INFO] [stderr]   Downloaded tempfile v3.19.1
[INFO] [stderr]   Downloaded pin-project-internal v1.1.10
[INFO] [stderr]   Downloaded prost-types v0.13.5
[INFO] [stderr]   Downloaded prost-build v0.13.5
[INFO] [stderr]   Downloaded getrandom v0.3.2
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.21
[INFO] [stderr]   Downloaded quote v1.0.40
[INFO] [stderr]   Downloaded futures-channel v0.3.31
[INFO] [stderr]   Downloaded axum-core v0.5.2
[INFO] [stderr]   Downloaded async-trait v0.1.88
[INFO] [stderr]   Downloaded unicode-ident v1.0.18
[INFO] [stderr]   Downloaded slab v0.4.9
[INFO] [stderr]   Downloaded smallvec v1.15.0
[INFO] [stderr]   Downloaded addr2line v0.24.2
[INFO] [stderr]   Downloaded matchit v0.8.4
[INFO] [stderr]   Downloaded rand_core v0.9.3
[INFO] [stderr]   Downloaded walkdir v2.5.0
[INFO] [stderr]   Downloaded futures-executor v0.3.31
[INFO] [stderr]   Downloaded hyper-timeout v0.5.2
[INFO] [stderr]   Downloaded http-body-util v0.1.3
[INFO] [stderr]   Downloaded bincode v1.3.3
[INFO] [stderr]   Downloaded redox_syscall v0.5.11
[INFO] [stderr]   Downloaded anstyle-parse v0.2.6
[INFO] [stderr]   Downloaded rand_core v0.6.4
[INFO] [stderr]   Downloaded rustversion v1.0.20
[INFO] [stderr]   Downloaded pkg-config v0.3.32
[INFO] [stderr]   Downloaded shlex v1.3.0
[INFO] [stderr]   Downloaded ed25519 v1.5.3
[INFO] [stderr]   Downloaded thiserror v1.0.69
[INFO] [stderr]   Downloaded thiserror-impl v1.0.69
[INFO] [stderr]   Downloaded libredox v0.1.3
[INFO] [stderr]   Downloaded dashmap v6.1.0
[INFO] [stderr]   Downloaded is_terminal_polyfill v1.70.1
[INFO] [stderr]   Downloaded socket2 v0.5.9
[INFO] [stderr]   Downloaded anstream v0.6.18
[INFO] [stderr]   Downloaded ryu v1.0.20
[INFO] [stderr]   Downloaded anyhow v1.0.98
[INFO] [stderr]   Downloaded lock_api v0.4.12
[INFO] [stderr]   Downloaded miniz_oxide v0.8.8
[INFO] [stderr]   Downloaded bitflags v2.9.0
[INFO] [stderr]   Downloaded r-efi v5.2.0
[INFO] [stderr]   Downloaded tokio-stream v0.1.17
[INFO] [stderr]   Downloaded pin-project v1.1.10
[INFO] [stderr]   Downloaded crossbeam-deque v0.8.6
[INFO] [stderr]   Downloaded parking_lot_core v0.9.10
[INFO] [stderr]   Downloaded clap_derive v4.5.32
[INFO] [stderr]   Downloaded proc-macro2 v1.0.95
[INFO] [stderr]   Downloaded bytes v1.10.1
[INFO] [stderr]   Downloaded prettyplease v0.2.32
[INFO] [stderr]   Downloaded hyper-util v0.1.11
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.18
[INFO] [stderr]   Downloaded tracing v0.1.41
[INFO] [stderr]   Downloaded serde_derive v1.0.219
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.21
[INFO] [stderr]   Downloaded memchr v2.7.4
[INFO] [stderr]   Downloaded base64 v0.22.1
[INFO] [stderr]   Downloaded backtrace v0.3.74
[INFO] [stderr]   Downloaded tower v0.5.2
[INFO] [stderr]   Downloaded mio v1.0.3
[INFO] [stderr]   Downloaded indexmap v2.9.0
[INFO] [stderr]   Downloaded tonic v0.13.0
[INFO] [stderr]   Downloaded indexmap v1.9.3
[INFO] [stderr]   Downloaded serde v1.0.219
[INFO] [stderr]   Downloaded rayon-core v1.12.1
[INFO] [stderr]   Downloaded getrandom v0.2.16
[INFO] [stderr]   Downloaded num-traits v0.2.19
[INFO] [stderr]   Downloaded futures v0.3.31
[INFO] [stderr]   Downloaded clap v4.5.36
[INFO] [stderr]   Downloaded tokio-util v0.7.14
[INFO] [stderr]   Downloaded hashbrown v0.15.2
[INFO] [stderr]   Downloaded hyper v1.6.0
[INFO] [stderr]   Downloaded zerocopy-derive v0.8.24
[INFO] [stderr]   Downloaded futures-util v0.3.31
[INFO] [stderr]   Downloaded itertools v0.14.0
[INFO] [stderr]   Downloaded wasi v0.14.2+wasi-0.2.4
[INFO] [stderr]   Downloaded rand v0.8.5
[INFO] [stderr]   Downloaded hashbrown v0.12.3
[INFO] [stderr]   Downloaded aho-corasick v1.1.3
[INFO] [stderr]   Downloaded rand v0.9.1
[INFO] [stderr]   Downloaded cc v1.2.19
[INFO] [stderr]   Downloaded hashbrown v0.14.5
[INFO] [stderr]   Downloaded rayon v1.10.0
[INFO] [stderr]   Downloaded clap_builder v4.5.36
[INFO] [stderr]   Downloaded h2 v0.4.9
[INFO] [stderr]   Downloaded axum v0.8.3
[INFO] [stderr]   Downloaded serde_json v1.0.140
[INFO] [stderr]   Downloaded zerocopy v0.8.24
[INFO] [stderr]   Downloaded regex v1.11.1
[INFO] [stderr]   Downloaded gimli v0.31.1
[INFO] [stderr]   Downloaded syn v2.0.100
[INFO] [stderr]   Downloaded object v0.36.7
[INFO] [stderr]   Downloaded regex-syntax v0.8.5
[INFO] [stderr]   Downloaded rustix v1.0.5
[INFO] [stderr]   Downloaded windows_x86_64_gnullvm v0.52.6
[INFO] [stderr]   Downloaded windows_i686_gnullvm v0.52.6
[INFO] [stderr]   Downloaded windows_aarch64_gnullvm v0.52.6
[INFO] [stderr]   Downloaded regex-automata v0.4.9
[INFO] [stderr]   Downloaded tokio v1.44.2
[INFO] [stderr]   Downloaded petgraph v0.7.1
[INFO] [stderr]   Downloaded libc v0.2.172
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.52.6
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.52.6
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.52.6
[INFO] [stderr]   Downloaded windows_i686_gnu v0.52.6
[INFO] [stderr]   Downloaded windows_i686_msvc v0.52.6
[INFO] [stderr]   Downloaded winapi v0.3.9
[INFO] [stderr]   Downloaded sodiumoxide v0.2.7
[INFO] [stderr]   Downloaded linux-raw-sys v0.9.4
[INFO] [stderr]   Downloaded windows-sys v0.59.0
[INFO] [stderr]   Downloaded windows-sys v0.52.0
[INFO] [stderr]   Downloaded winapi-i686-pc-windows-gnu v0.4.0
[INFO] [stderr]   Downloaded winapi-x86_64-pc-windows-gnu v0.4.0
[INFO] [stderr]   Downloaded libsodium-sys v0.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 9c009cb6870d845ff2a7540d10be6e290d16825f91c45becbd050d2ac0ae925e
[INFO] running `Command { std: "docker" "start" "9c009cb6870d845ff2a7540d10be6e290d16825f91c45becbd050d2ac0ae925e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9c009cb6870d845ff2a7540d10be6e290d16825f91c45becbd050d2ac0ae925e" "/opt/rustwide/cargo-home/bin/cargo" "+ff647322379c48947c196639599067665ff9eb88" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c009cb6870d845ff2a7540d10be6e290d16825f91c45becbd050d2ac0ae925e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9c009cb6870d845ff2a7540d10be6e290d16825f91c45becbd050d2ac0ae925e" "/opt/rustwide/cargo-home/bin/cargo" "+ff647322379c48947c196639599067665ff9eb88" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]    Compiling zerocopy v0.8.24
[INFO] [stderr]     Checking smallvec v1.15.0
[INFO] [stderr]    Compiling prettyplease v0.2.32
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling cc v1.2.19
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling petgraph v0.7.1
[INFO] [stderr]    Compiling tempfile v3.19.1
[INFO] [stderr]     Checking anstyle-parse v0.2.6
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking signature v1.6.4
[INFO] [stderr]     Checking anstyle-query v1.1.2
[INFO] [stderr]     Checking anstyle v1.0.10
[INFO] [stderr]     Checking colorchoice v1.0.3
[INFO] [stderr]     Checking ed25519 v1.5.3
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking clap_lex v0.7.4
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking anstream v0.6.18
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking dashmap v6.1.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking clap_builder v4.5.36
[INFO] [stderr]     Checking tracing-subscriber v0.3.19
[INFO] [stderr]    Compiling libsodium-sys v0.2.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand v0.9.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking pagerank_rs v0.1.0
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling prost-derive v0.13.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling async-trait v0.1.88
[INFO] [stderr]    Compiling clap_derive v4.5.32
[INFO] [stderr]     Checking tokio v1.44.2
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking pin-project v1.1.10
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]    Compiling prost v0.13.5
[INFO] [stderr]     Checking clap v4.5.36
[INFO] [stderr]    Compiling prost-types v0.13.5
[INFO] [stderr]    Compiling prost-build v0.13.5
[INFO] [stderr]    Compiling tonic-build v0.13.0
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]    Compiling kv v0.1.0 (/opt/rustwide/workdir/kv)
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking secstr v0.4.0
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking tokio-util v0.7.14
[INFO] [stderr]     Checking tokio-stream v0.1.17
[INFO] [stderr]     Checking h2 v0.4.9
[INFO] [stderr]     Checking tower v0.5.2
[INFO] [stderr]     Checking axum v0.8.3
[INFO] [stderr]     Checking hyper v1.6.0
[INFO] [stderr]     Checking hyper-util v0.1.11
[INFO] [stderr]     Checking hyper-timeout v0.5.2
[INFO] [stderr]     Checking tonic v0.13.0
[INFO] [stderr]     Checking sodiumoxide v0.2.7
[INFO] [stderr]     Checking microkv v0.2.9
[INFO] [stdout] warning: unused import: `time::sleep`
[INFO] [stdout]   --> kv/src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     time::sleep,
[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: `time::sleep`
[INFO] [stdout]   --> kv/src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     time::sleep,
[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: `pr`
[INFO] [stdout]   --> kv/src/rpc/election_timeout.rs:55:28
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 for (node, pr) in nodes {
[INFO] [stdout]    |                            ^^ help: if this is intentional, prefix it with an underscore: `_pr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pr`
[INFO] [stdout]   --> kv/src/rpc/election_timeout.rs:55:28
[INFO] [stdout]    |
[INFO] [stdout] 55 |                 for (node, pr) in nodes {
[INFO] [stdout]    |                            ^^ help: if this is intentional, prefix it with an underscore: `_pr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx`
[INFO] [stdout]   --> kv/src/main.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let (tx, rx) = broadcast::channel::<bool>(1);
[INFO] [stdout]    |          ^^ help: if this is intentional, prefix it with an underscore: `_tx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx`
[INFO] [stdout]   --> kv/src/main.rs:65:10
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let (tx, rx) = broadcast::channel::<bool>(1);
[INFO] [stdout]    |          ^^ help: if this is intentional, prefix it with an underscore: `_tx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 38s
[INFO] running `Command { std: "docker" "inspect" "9c009cb6870d845ff2a7540d10be6e290d16825f91c45becbd050d2ac0ae925e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c009cb6870d845ff2a7540d10be6e290d16825f91c45becbd050d2ac0ae925e", kill_on_drop: false }`
[INFO] [stdout] 9c009cb6870d845ff2a7540d10be6e290d16825f91c45becbd050d2ac0ae925e
