[INFO] cloning repository https://github.com/mwdomino/rs-datastore
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mwdomino/rs-datastore" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwdomino%2Frs-datastore", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwdomino%2Frs-datastore'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ca16069c53f4db89d9339740d785eaf144f2d70
[INFO] checking mwdomino/rs-datastore against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwdomino%2Frs-datastore" "/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/mwdomino/rs-datastore
[INFO] finished tweaking git repo https://github.com/mwdomino/rs-datastore
[INFO] tweaked toml for git repo https://github.com/mwdomino/rs-datastore written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mwdomino/rs-datastore on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mwdomino/rs-datastore 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prost-derive v0.12.5
[INFO] [stderr]   Downloaded log v0.4.21
[INFO] [stderr]   Downloaded plotters-svg v0.3.5
[INFO] [stderr]   Downloaded tonic-build v0.11.0
[INFO] [stderr]   Downloaded anyhow v1.0.83
[INFO] [stderr]   Downloaded either v1.11.0
[INFO] [stderr]   Downloaded prost v0.12.4
[INFO] [stderr]   Downloaded unicode-width v0.1.12
[INFO] [stderr]   Downloaded csv-core v0.1.11
[INFO] [stderr]   Downloaded env_logger v0.11.3
[INFO] [stderr]   Downloaded half v1.8.3
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.19
[INFO] [stderr]   Downloaded criterion v0.3.6
[INFO] [stderr]   Downloaded serde_cbor v0.11.2
[INFO] [stderr]   Downloaded plotters v0.3.5
[INFO] [stderr]   Downloaded rmp-serde v0.15.5
[INFO] [stderr]   Downloaded serde_json v1.0.116
[INFO] [stderr]   Downloaded tokio-io-timeout v1.2.0
[INFO] [stderr]   Downloaded hyper v0.14.28
[INFO] [stderr]   Downloaded prost-types v0.12.4
[INFO] [stderr]   Downloaded oorandom v11.1.3
[INFO] [stderr]   Downloaded plotters-backend v0.3.5
[INFO] [stderr]   Downloaded rmp v0.8.14
[INFO] [stderr]   Downloaded prost-build v0.12.4
[INFO] [stderr]   Downloaded criterion-plot v0.4.5
[INFO] [stderr]   Downloaded winapi-util v0.1.8
[INFO] [stderr]   Downloaded rustversion v1.0.16
[INFO] [stderr]   Downloaded web-sys v0.3.69
[INFO] [stderr]   Downloaded csv v1.3.0
[INFO] [stderr]   Downloaded linux-raw-sys v0.4.13
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21d988de2d6c3ba09143bf1aaa594e766f9417b77b2df4823aa4cb0d64b8301a
[INFO] running `Command { std: "docker" "start" "-a" "21d988de2d6c3ba09143bf1aaa594e766f9417b77b2df4823aa4cb0d64b8301a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21d988de2d6c3ba09143bf1aaa594e766f9417b77b2df4823aa4cb0d64b8301a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21d988de2d6c3ba09143bf1aaa594e766f9417b77b2df4823aa4cb0d64b8301a", kill_on_drop: false }`
[INFO] [stdout] 21d988de2d6c3ba09143bf1aaa594e766f9417b77b2df4823aa4cb0d64b8301a
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 902ff37a3ef793fd6e577a7e66d5368bf9c83ed807c0bcf9bd428420b8337f2d
[INFO] running `Command { std: "docker" "start" "-a" "902ff37a3ef793fd6e577a7e66d5368bf9c83ed807c0bcf9bd428420b8337f2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.81
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking pin-project-lite v0.2.14
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]    Compiling serde v1.0.200
[INFO] [stderr]    Compiling anyhow v1.0.83
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]    Compiling either v1.11.0
[INFO] [stderr]    Compiling rustversion v1.0.16
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling prettyplease v0.2.20
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking tower-service v0.3.2
[INFO] [stderr]    Compiling linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling syn v2.0.60
[INFO] [stderr]    Compiling fastrand v2.1.0
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]    Compiling axum-core v0.3.4
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking indexmap v2.2.6
[INFO] [stderr]     Checking parking_lot v0.12.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking anstyle-parse v0.2.4
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.0
[INFO] [stderr]     Checking anstyle-query v1.0.3
[INFO] [stderr]     Checking colorchoice v1.0.1
[INFO] [stderr]    Compiling multimap v0.10.0
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]     Checking anstyle v1.0.7
[INFO] [stderr]     Checking tower-layer v0.3.2
[INFO] [stderr]    Compiling serde_json v1.0.116
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling axum v0.6.20
[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]     Checking unicode-width v0.1.12
[INFO] [stderr]     Checking rayon-core v1.12.1
[INFO] [stderr]     Checking anstream v0.6.14
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking plotters-svg v0.3.5
[INFO] [stderr]     Checking clap_lex v0.7.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking matchit v0.7.3
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]     Checking sync_wrapper v0.1.2
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking clap_builder v4.5.2
[INFO] [stderr]    Compiling tempfile v3.10.1
[INFO] [stderr]     Checking rmp v0.8.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking base64 v0.21.7
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]    Compiling petgraph v0.6.5
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking env_filter v0.1.0
[INFO] [stderr]     Checking env_logger v0.11.3
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling serde_derive v1.0.200
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling prost-derive v0.12.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling async-trait v0.1.80
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]    Compiling clap_derive v4.5.4
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]    Compiling prost v0.12.4
[INFO] [stderr]    Compiling prost-types v0.12.4
[INFO] [stderr]     Checking clap v4.5.4
[INFO] [stderr]    Compiling prost-build v0.12.4
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]    Compiling tonic-build v0.11.0
[INFO] [stderr]    Compiling rs-datastore v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tokio-util v0.7.11
[INFO] [stderr]     Checking tokio-io-timeout v1.2.0
[INFO] [stderr]     Checking tokio-stream v0.1.15
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking rmp-serde v0.15.5
[INFO] [stderr]     Checking h2 v0.3.26
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking hyper-timeout v0.4.1
[INFO] [stderr]     Checking tonic v0.11.0
[INFO] [stdout] warning: unused import: `tokio::time`
[INFO] [stdout]  --> src/datastore/event.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tokio::time;
[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: `super::event::Event`
[INFO] [stdout]  --> src/datastore/expiration.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::event::Event;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::datastore::Datastore`
[INFO] [stdout]  --> src/datastore/expiration.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::datastore::Datastore;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::sync::mpsc::Sender`
[INFO] [stdout]  --> src/datastore/expiration.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tokio::sync::mpsc::Sender;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/datastore/mod.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]   --> src/datastore/mod.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |     use std::time::Duration;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::time::sleep`
[INFO] [stdout]   --> src/datastore/mod.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |     use tokio::time::sleep;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::time`
[INFO] [stdout]  --> src/datastore/event.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tokio::time;
[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: `super::event::Event`
[INFO] [stdout]  --> src/datastore/expiration.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::event::Event;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::datastore::Datastore`
[INFO] [stdout]  --> src/datastore/expiration.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::datastore::Datastore;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::sync::mpsc::Sender`
[INFO] [stdout]  --> src/datastore/expiration.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tokio::sync::mpsc::Sender;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `delete_tests` is never used
[INFO] [stdout]    --> src/nestedmap/delete.rs:251:8
[INFO] [stdout]     |
[INFO] [stdout] 251 |     fn delete_tests(test_cases: Vec<TestCase>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_tests` is never used
[INFO] [stdout]   --> src/nestedmap/get.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn get_tests(test_cases: Vec<TestCase>) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `query_tests` is never used
[INFO] [stdout]    --> src/nestedmap/query.rs:418:8
[INFO] [stdout]     |
[INFO] [stdout] 418 |     fn query_tests(test_cases: Vec<TestCase>) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_tests` is never used
[INFO] [stdout]    --> src/nestedmap/set.rs:262:8
[INFO] [stdout]     |
[INFO] [stdout] 262 |     fn set_tests(test_cases: Vec<TestCase>) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `black_box`
[INFO] [stdout]  --> benches/benchmark.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use criterion::{black_box, criterion_group, criterion_main, Criterion};
[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: `rs_datastore::datastore::*`
[INFO] [stdout]  --> benches/benchmark.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rs_datastore::datastore::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Item`
[INFO] [stdout]  --> benches/benchmark.rs:7:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rs_datastore::nestedmap::{Item, NestedMap}; // Import your NestedMap module
[INFO] [stdout]   |                               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Builder` and `Runtime`
[INFO] [stdout]  --> benches/benchmark.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tokio::runtime::{Builder, Runtime};
[INFO] [stdout]   |                      ^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bench_get` is never used
[INFO] [stdout]   --> benches/benchmark.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn bench_get(c: &mut Criterion) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `random_key` is never used
[INFO] [stdout]    --> benches/benchmark.rs:223:4
[INFO] [stdout]     |
[INFO] [stdout] 223 | fn random_key() -> String {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 38.25s
[INFO] running `Command { std: "docker" "inspect" "902ff37a3ef793fd6e577a7e66d5368bf9c83ed807c0bcf9bd428420b8337f2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "902ff37a3ef793fd6e577a7e66d5368bf9c83ed807c0bcf9bd428420b8337f2d", kill_on_drop: false }`
[INFO] [stdout] 902ff37a3ef793fd6e577a7e66d5368bf9c83ed807c0bcf9bd428420b8337f2d
