[INFO] cloning repository https://github.com/birktj/ais-decoder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/birktj/ais-decoder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbirktj%2Fais-decoder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbirktj%2Fais-decoder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4834a22c016dea70c808b2a59288f667ce9e4a25
[INFO] testing birktj/ais-decoder against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbirktj%2Fais-decoder" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/birktj/ais-decoder on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/birktj/ais-decoder
[INFO] finished tweaking git repo https://github.com/birktj/ais-decoder
[INFO] tweaked toml for git repo https://github.com/birktj/ais-decoder written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/birktj/ais-decoder already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gnuplot v0.0.26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0fcfa40544cc57eb7a4c83468110b4df5aaec050a09786278368784407da8489
[INFO] running `Command { std: "docker" "start" "-a" "0fcfa40544cc57eb7a4c83468110b4df5aaec050a09786278368784407da8489", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fcfa40544cc57eb7a4c83468110b4df5aaec050a09786278368784407da8489", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fcfa40544cc57eb7a4c83468110b4df5aaec050a09786278368784407da8489", kill_on_drop: false }`
[INFO] [stdout] 0fcfa40544cc57eb7a4c83468110b4df5aaec050a09786278368784407da8489
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b642f0f165eaab95042acaf37778b81cf73b0257dff13e5161fb68a43c048103
[INFO] running `Command { std: "docker" "start" "-a" "b642f0f165eaab95042acaf37778b81cf73b0257dff13e5161fb68a43c048103", kill_on_drop: false }`
[INFO] [stderr]    Compiling gnuplot v0.0.26
[INFO] [stderr]    Compiling ais-decoder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Command`, `Stdio`
[INFO] [stdout]  --> src/main.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::process::{Command, Stdio};
[INFO] [stdout]   |                    ^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/main.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::{Read, Write};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `clock`
[INFO] [stdout]    --> src/main.rs:476:9
[INFO] [stdout]     |
[INFO] [stdout] 476 |     let mut clock = FunctionSignal::new(|x| if (x*9600.0) as i64 % 2 >= 1 {250.0} else {0.0});
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_clock`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:469:9
[INFO] [stdout]     |
[INFO] [stdout] 469 |     let mut signal = SampledSignal::from_iterator(50000.0, data);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:476:9
[INFO] [stdout]     |
[INFO] [stdout] 476 |     let mut clock = FunctionSignal::new(|x| if (x*9600.0) as i64 % 2 >= 1 {250.0} else {0.0});
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:513:9
[INFO] [stdout]     |
[INFO] [stdout] 513 |     let mut ais_data = low_pass_iter(1.0, signal.sample_iter(1.0 / (9600.0 * 20.0)))
[INFO] [stdout]     |         ----^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_wav`
[INFO] [stdout]    --> src/main.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn from_wav<R: std::io::Read>(reader: hound::WavReader<R>) -> SampledSignal<impl Iterator<Item = f64>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_slice`
[INFO] [stdout]    --> src/main.rs:131:8
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn from_slice<'a>(sample_rate: f64, slice: &'a [f64]) -> SampledSignal<impl Iterator<Item = f64> + 'a> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_owned`
[INFO] [stdout]    --> src/main.rs:157:8
[INFO] [stdout]     |
[INFO] [stdout] 157 |     fn to_owned(self) -> SampledSignal<std::vec::IntoIter<f64>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `low_pass`
[INFO] [stdout]    --> src/main.rs:190:4
[INFO] [stdout]     |
[INFO] [stdout] 190 | fn low_pass(x: &[f32]) -> Vec<f32> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `string`
[INFO] [stdout]    --> src/main.rs:257:8
[INFO] [stdout]     |
[INFO] [stdout] 257 |     fn string(bytes: &[u8], start: usize, end: usize) -> String {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.15s
[INFO] running `Command { std: "docker" "inspect" "b642f0f165eaab95042acaf37778b81cf73b0257dff13e5161fb68a43c048103", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b642f0f165eaab95042acaf37778b81cf73b0257dff13e5161fb68a43c048103", kill_on_drop: false }`
[INFO] [stdout] b642f0f165eaab95042acaf37778b81cf73b0257dff13e5161fb68a43c048103
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c93ab0966fed6f567f784a33347554e77983a7d58657a96de308a1976fe181b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7c93ab0966fed6f567f784a33347554e77983a7d58657a96de308a1976fe181b", kill_on_drop: false }`
[INFO] [stderr]    Compiling ais-decoder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Command`, `Stdio`
[INFO] [stdout]  --> src/main.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::process::{Command, Stdio};
[INFO] [stdout]   |                    ^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/main.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::{Read, Write};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `clock`
[INFO] [stdout]    --> src/main.rs:476:9
[INFO] [stdout]     |
[INFO] [stdout] 476 |     let mut clock = FunctionSignal::new(|x| if (x*9600.0) as i64 % 2 >= 1 {250.0} else {0.0});
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_clock`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:469:9
[INFO] [stdout]     |
[INFO] [stdout] 469 |     let mut signal = SampledSignal::from_iterator(50000.0, data);
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:476:9
[INFO] [stdout]     |
[INFO] [stdout] 476 |     let mut clock = FunctionSignal::new(|x| if (x*9600.0) as i64 % 2 >= 1 {250.0} else {0.0});
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:513:9
[INFO] [stdout]     |
[INFO] [stdout] 513 |     let mut ais_data = low_pass_iter(1.0, signal.sample_iter(1.0 / (9600.0 * 20.0)))
[INFO] [stdout]     |         ----^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_wav`
[INFO] [stdout]    --> src/main.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 106 |     fn from_wav<R: std::io::Read>(reader: hound::WavReader<R>) -> SampledSignal<impl Iterator<Item = f64>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_slice`
[INFO] [stdout]    --> src/main.rs:131:8
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn from_slice<'a>(sample_rate: f64, slice: &'a [f64]) -> SampledSignal<impl Iterator<Item = f64> + 'a> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_owned`
[INFO] [stdout]    --> src/main.rs:157:8
[INFO] [stdout]     |
[INFO] [stdout] 157 |     fn to_owned(self) -> SampledSignal<std::vec::IntoIter<f64>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `low_pass`
[INFO] [stdout]    --> src/main.rs:190:4
[INFO] [stdout]     |
[INFO] [stdout] 190 | fn low_pass(x: &[f32]) -> Vec<f32> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `string`
[INFO] [stdout]    --> src/main.rs:257:8
[INFO] [stdout]     |
[INFO] [stdout] 257 |     fn string(bytes: &[u8], start: usize, end: usize) -> String {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "7c93ab0966fed6f567f784a33347554e77983a7d58657a96de308a1976fe181b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c93ab0966fed6f567f784a33347554e77983a7d58657a96de308a1976fe181b", kill_on_drop: false }`
[INFO] [stdout] 7c93ab0966fed6f567f784a33347554e77983a7d58657a96de308a1976fe181b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 926b08d6333984134b76c6c1a9c8fe594af58dd3c62fd5109abb495d04bf6af8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "926b08d6333984134b76c6c1a9c8fe594af58dd3c62fd5109abb495d04bf6af8", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Command`, `Stdio`
[INFO] [stderr]  --> src/main.rs:5:20
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::process::{Command, Stdio};
[INFO] [stderr]   |                    ^^^^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]  --> src/main.rs:6:21
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::io::{Read, Write};
[INFO] [stderr]   |                     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `clock`
[INFO] [stderr]    --> src/main.rs:476:9
[INFO] [stderr]     |
[INFO] [stderr] 476 |     let mut clock = FunctionSignal::new(|x| if (x*9600.0) as i64 % 2 >= 1 {250.0} else {0.0});
[INFO] [stderr]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_clock`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:469:9
[INFO] [stderr]     |
[INFO] [stderr] 469 |     let mut signal = SampledSignal::from_iterator(50000.0, data);
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:476:9
[INFO] [stderr]     |
[INFO] [stderr] 476 |     let mut clock = FunctionSignal::new(|x| if (x*9600.0) as i64 % 2 >= 1 {250.0} else {0.0});
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:513:9
[INFO] [stderr]     |
[INFO] [stderr] 513 |     let mut ais_data = low_pass_iter(1.0, signal.sample_iter(1.0 / (9600.0 * 20.0)))
[INFO] [stderr]     |         ----^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_wav`
[INFO] [stderr]    --> src/main.rs:106:8
[INFO] [stderr]     |
[INFO] [stderr] 106 |     fn from_wav<R: std::io::Read>(reader: hound::WavReader<R>) -> SampledSignal<impl Iterator<Item = f64>> {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_slice`
[INFO] [stderr]    --> src/main.rs:131:8
[INFO] [stderr]     |
[INFO] [stderr] 131 |     fn from_slice<'a>(sample_rate: f64, slice: &'a [f64]) -> SampledSignal<impl Iterator<Item = f64> + 'a> {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_owned`
[INFO] [stderr]    --> src/main.rs:157:8
[INFO] [stderr]     |
[INFO] [stderr] 157 |     fn to_owned(self) -> SampledSignal<std::vec::IntoIter<f64>> {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `low_pass`
[INFO] [stderr]    --> src/main.rs:190:4
[INFO] [stderr]     |
[INFO] [stderr] 190 | fn low_pass(x: &[f32]) -> Vec<f32> {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `string`
[INFO] [stderr]    --> src/main.rs:257:8
[INFO] [stderr]     |
[INFO] [stderr] 257 |     fn string(bytes: &[u8], start: usize, end: usize) -> String {
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ais_decoder-7a73c6b4bb69fa4c
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "926b08d6333984134b76c6c1a9c8fe594af58dd3c62fd5109abb495d04bf6af8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "926b08d6333984134b76c6c1a9c8fe594af58dd3c62fd5109abb495d04bf6af8", kill_on_drop: false }`
[INFO] [stdout] 926b08d6333984134b76c6c1a9c8fe594af58dd3c62fd5109abb495d04bf6af8
