[INFO] cloning repository https://github.com/maulberto3/rust_stats [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maulberto3/rust_stats" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaulberto3%2Frust_stats", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaulberto3%2Frust_stats'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a3ea9e57bfc3d436ff93b163e19d770d6e0b46cb [INFO] checking maulberto3/rust_stats against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaulberto3%2Frust_stats" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/maulberto3/rust_stats on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/maulberto3/rust_stats [INFO] finished tweaking git repo https://github.com/maulberto3/rust_stats [INFO] tweaked toml for git repo https://github.com/maulberto3/rust_stats written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/maulberto3/rust_stats 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 39d99eab4337806121d6d4e37606981ce4f29beeba83d8516067e3b46c29c5bc [INFO] running `Command { std: "docker" "start" "-a" "39d99eab4337806121d6d4e37606981ce4f29beeba83d8516067e3b46c29c5bc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "39d99eab4337806121d6d4e37606981ce4f29beeba83d8516067e3b46c29c5bc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "39d99eab4337806121d6d4e37606981ce4f29beeba83d8516067e3b46c29c5bc", kill_on_drop: false }` [INFO] [stdout] 39d99eab4337806121d6d4e37606981ce4f29beeba83d8516067e3b46c29c5bc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0f615d790df8e20d4af3caab223e4ffc69cd80710cb5ca6660d50b96e6d0557e [INFO] running `Command { std: "docker" "start" "-a" "0f615d790df8e20d4af3caab223e4ffc69cd80710cb5ca6660d50b96e6d0557e", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.78 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Checking once_cell v1.19.0 [INFO] [stderr] Compiling cc v1.0.89 [INFO] [stderr] Compiling pkg-config v0.3.30 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking itoa v1.0.10 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Checking memchr v2.7.1 [INFO] [stderr] Compiling openssl v0.10.64 [INFO] [stderr] Checking bitflags v2.4.2 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Checking futures-task v0.3.30 [INFO] [stderr] Checking hashbrown v0.14.3 [INFO] [stderr] Checking equivalent v1.0.1 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Compiling native-tls v0.2.11 [INFO] [stderr] Checking percent-encoding v2.3.1 [INFO] [stderr] Checking log v0.4.21 [INFO] [stderr] Checking http v0.2.12 [INFO] [stderr] Checking try-lock v0.2.5 [INFO] [stderr] Checking unicode-normalization v0.1.23 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Checking form_urlencoded v1.2.1 [INFO] [stderr] Checking want v0.3.1 [INFO] [stderr] Checking unicode-bidi v0.3.15 [INFO] [stderr] Checking ryu v1.0.17 [INFO] [stderr] Compiling anyhow v1.0.80 [INFO] [stderr] Checking base64 v0.21.7 [INFO] [stderr] Checking sync_wrapper v0.1.2 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking csv-core v0.1.11 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking rustls-pemfile v1.0.4 [INFO] [stderr] Checking indexmap v2.2.5 [INFO] [stderr] Checking idna v0.5.0 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Checking http-body v0.4.6 [INFO] [stderr] Compiling syn v2.0.52 [INFO] [stderr] Compiling openssl-sys v0.9.101 [INFO] [stderr] Checking parking_lot_core v0.9.9 [INFO] [stderr] Checking socket2 v0.5.6 [INFO] [stderr] Checking mio v0.8.11 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking url v2.5.0 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Compiling tokio-macros v2.2.0 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Checking tokio v1.36.0 [INFO] [stderr] Checking tokio-util v0.7.10 [INFO] [stderr] Checking tokio-native-tls v0.3.1 [INFO] [stderr] Checking h2 v0.3.24 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking csv v1.3.0 [INFO] [stderr] Checking hyper v0.14.28 [INFO] [stderr] Checking hyper-tls v0.5.0 [INFO] [stderr] Checking reqwest v0.11.24 [INFO] [stderr] Checking rust_stats v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `vec` [INFO] [stdout] --> examples/ex03.rs:5:21 [INFO] [stdout] | [INFO] [stdout] 5 | use std::{io::Read, vec}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Reader` [INFO] [stdout] --> examples/ex02.rs:2:11 [INFO] [stdout] | [INFO] [stdout] 2 | use csv::{Reader, ReaderBuilder}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `reqwest::Response` [INFO] [stdout] --> examples/ex02.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use reqwest::Response; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `serde::de` [INFO] [stdout] --> examples/ex02.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use serde::de; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `calc_median` is never used [INFO] [stdout] --> examples/ex03.rs:52:4 [INFO] [stdout] | [INFO] [stdout] 52 | fn calc_median(data: &mut Vec) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `filter_and_convert` is never used [INFO] [stdout] --> examples/ex03.rs:93:4 [INFO] [stdout] | [INFO] [stdout] 93 | fn filter_and_convert(dataset: &[SalaryRecord]) -> Result> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.46s [INFO] running `Command { std: "docker" "inspect" "0f615d790df8e20d4af3caab223e4ffc69cd80710cb5ca6660d50b96e6d0557e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0f615d790df8e20d4af3caab223e4ffc69cd80710cb5ca6660d50b96e6d0557e", kill_on_drop: false }` [INFO] [stdout] 0f615d790df8e20d4af3caab223e4ffc69cd80710cb5ca6660d50b96e6d0557e [INFO] checking maulberto3/rust_stats against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaulberto3%2Frust_stats" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/maulberto3/rust_stats on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/maulberto3/rust_stats [INFO] finished tweaking git repo https://github.com/maulberto3/rust_stats [INFO] tweaked toml for git repo https://github.com/maulberto3/rust_stats written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/maulberto3/rust_stats 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5151188ee6bc6fe0d562d9f4204f18f16350c9f6b8fe4543c41b8067e87f03bb [INFO] running `Command { std: "docker" "start" "-a" "5151188ee6bc6fe0d562d9f4204f18f16350c9f6b8fe4543c41b8067e87f03bb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5151188ee6bc6fe0d562d9f4204f18f16350c9f6b8fe4543c41b8067e87f03bb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5151188ee6bc6fe0d562d9f4204f18f16350c9f6b8fe4543c41b8067e87f03bb", kill_on_drop: false }` [INFO] [stdout] 5151188ee6bc6fe0d562d9f4204f18f16350c9f6b8fe4543c41b8067e87f03bb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] facdb9f95e2c5bb585968617fbfa73e03077d2ca460e852ccbc51516bacb8ffe [INFO] running `Command { std: "docker" "start" "-a" "facdb9f95e2c5bb585968617fbfa73e03077d2ca460e852ccbc51516bacb8ffe", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.78 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling cc v1.0.89 [INFO] [stderr] Compiling pkg-config v0.3.30 [INFO] [stderr] Checking once_cell v1.19.0 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking itoa v1.0.10 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Checking memchr v2.7.1 [INFO] [stderr] Compiling openssl v0.10.64 [INFO] [stderr] Compiling native-tls v0.2.11 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Checking hashbrown v0.14.3 [INFO] [stderr] Checking equivalent v1.0.1 [INFO] [stderr] Checking futures-task v0.3.30 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Checking bitflags v2.4.2 [INFO] [stderr] Checking try-lock v0.2.5 [INFO] [stderr] Checking log v0.4.21 [INFO] [stderr] Checking percent-encoding v2.3.1 [INFO] [stderr] Checking http v0.2.12 [INFO] [stderr] Checking want v0.3.1 [INFO] [stderr] Checking unicode-normalization v0.1.23 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Checking unicode-bidi v0.3.15 [INFO] [stderr] Checking ryu v1.0.17 [INFO] [stderr] Checking base64 v0.21.7 [INFO] [stderr] Checking form_urlencoded v1.2.1 [INFO] [stderr] Compiling anyhow v1.0.80 [INFO] [stderr] Checking sync_wrapper v0.1.2 [INFO] [stderr] Checking rustls-pemfile v1.0.4 [INFO] [stderr] Checking idna v0.5.0 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking csv-core v0.1.11 [INFO] [stderr] Checking http-body v0.4.6 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Checking indexmap v2.2.5 [INFO] [stderr] Compiling openssl-sys v0.9.101 [INFO] [stderr] Compiling syn v2.0.52 [INFO] [stderr] Checking url v2.5.0 [INFO] [stderr] Checking parking_lot_core v0.9.9 [INFO] [stderr] Checking mio v0.8.11 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking socket2 v0.5.6 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Compiling tokio-macros v2.2.0 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Checking tokio v1.36.0 [INFO] [stderr] Checking tokio-util v0.7.10 [INFO] [stderr] Checking tokio-native-tls v0.3.1 [INFO] [stderr] Checking h2 v0.3.24 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking csv v1.3.0 [INFO] [stderr] Checking hyper v0.14.28 [INFO] [stderr] Checking hyper-tls v0.5.0 [INFO] [stderr] Checking reqwest v0.11.24 [INFO] [stderr] Checking rust_stats v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Reader` [INFO] [stdout] --> examples/ex02.rs:2:11 [INFO] [stdout] | [INFO] [stdout] 2 | use csv::{Reader, ReaderBuilder}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `reqwest::Response` [INFO] [stdout] --> examples/ex02.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use reqwest::Response; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `serde::de` [INFO] [stdout] --> examples/ex02.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use serde::de; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `vec` [INFO] [stdout] --> examples/ex03.rs:5:21 [INFO] [stdout] | [INFO] [stdout] 5 | use std::{io::Read, vec}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `calc_median` is never used [INFO] [stdout] --> examples/ex03.rs:52:4 [INFO] [stdout] | [INFO] [stdout] 52 | fn calc_median(data: &mut Vec) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `filter_and_convert` is never used [INFO] [stdout] --> examples/ex03.rs:93:4 [INFO] [stdout] | [INFO] [stdout] 93 | fn filter_and_convert(dataset: &[SalaryRecord]) -> Result> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.71s [INFO] running `Command { std: "docker" "inspect" "facdb9f95e2c5bb585968617fbfa73e03077d2ca460e852ccbc51516bacb8ffe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "facdb9f95e2c5bb585968617fbfa73e03077d2ca460e852ccbc51516bacb8ffe", kill_on_drop: false }` [INFO] [stdout] facdb9f95e2c5bb585968617fbfa73e03077d2ca460e852ccbc51516bacb8ffe