[INFO] fetching crate echolot 0.1.1...
[INFO] testing echolot-0.1.1 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate echolot 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate echolot 0.1.1
[INFO] finished tweaking crates.io crate echolot 0.1.1
[INFO] tweaked toml for crates.io crate echolot 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate echolot 0.1.1 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate echolot 0.1.1 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ade6bf6409930aef8073deb0a2f67ccde051423167c3307ef56984fa5cf32ee6
[INFO] running `Command { std: "docker" "start" "-a" "ade6bf6409930aef8073deb0a2f67ccde051423167c3307ef56984fa5cf32ee6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ade6bf6409930aef8073deb0a2f67ccde051423167c3307ef56984fa5cf32ee6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ade6bf6409930aef8073deb0a2f67ccde051423167c3307ef56984fa5cf32ee6", kill_on_drop: false }`
[INFO] [stdout] ade6bf6409930aef8073deb0a2f67ccde051423167c3307ef56984fa5cf32ee6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce5094d112c2c135cd48727b52e8c7810dba7ee83dd97ca1483890602b6ab525
[INFO] running `Command { std: "docker" "start" "-a" "ce5094d112c2c135cd48727b52e8c7810dba7ee83dd97ca1483890602b6ab525", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling strength_reduce v0.2.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]    Compiling cpal v0.13.5
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling rsor v0.1.3
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling num-complex v0.4.1
[INFO] [stderr]    Compiling numeric-array v0.5.2
[INFO] [stderr]    Compiling nix v0.23.1
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling primal-check v0.3.1
[INFO] [stderr]    Compiling transpose v0.2.1
[INFO] [stderr]    Compiling rustfft v6.0.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling duplicate v0.4.0
[INFO] [stderr]    Compiling thiserror v1.0.31
[INFO] [stderr]    Compiling alsa v0.6.0
[INFO] [stderr]    Compiling fundsp v0.6.3
[INFO] [stderr]    Compiling echolot v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/transmit.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs;
[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: `base64::encode as encode_base64`
[INFO] [stdout]  --> src/transmit.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use base64::encode as encode_base64;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs::File`
[INFO] [stdout]  --> src/receive.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::File, sync::mpsc};
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::prelude::*`
[INFO] [stdout]  --> src/receive.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `base64::decode as decode_base64`
[INFO] [stdout]  --> src/receive.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use base64::decode as decode_base64;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode` is never used
[INFO] [stdout]   --> src/coding.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn decode(transmission: Vec<f32>, sample_rate: u32) -> anyhow::Result<Vec<u8>> {
[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 `freq_to_base64` is never used
[INFO] [stdout]   --> src/coding.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn freq_to_base64(freq: f32) -> char {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `base64_value_to_base64_char` is never used
[INFO] [stdout]   --> src/coding.rs:90:4
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn base64_value_to_base64_char(n: u8) -> char {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `i16_to_f32` is never used
[INFO] [stdout]  --> src/receive/util.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn i16_to_f32(sample: &[i16]) -> Vec<f32> {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `u16_to_f32` is never used
[INFO] [stdout]   --> src/receive/util.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn u16_to_f32(sample: &[u16]) -> Vec<f32> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.13s
[INFO] running `Command { std: "docker" "inspect" "ce5094d112c2c135cd48727b52e8c7810dba7ee83dd97ca1483890602b6ab525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce5094d112c2c135cd48727b52e8c7810dba7ee83dd97ca1483890602b6ab525", kill_on_drop: false }`
[INFO] [stdout] ce5094d112c2c135cd48727b52e8c7810dba7ee83dd97ca1483890602b6ab525
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3bb4592202a8ade36d0bfe70033b63ef0524406aa20466f82b9ded226995cebe
[INFO] running `Command { std: "docker" "start" "-a" "3bb4592202a8ade36d0bfe70033b63ef0524406aa20466f82b9ded226995cebe", kill_on_drop: false }`
[INFO] [stderr]    Compiling echolot v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/transmit.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs;
[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: `base64::encode as encode_base64`
[INFO] [stdout]  --> src/transmit.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use base64::encode as encode_base64;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs::File`
[INFO] [stdout]  --> src/receive.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::File, sync::mpsc};
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::prelude::*`
[INFO] [stdout]  --> src/receive.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `base64::decode as decode_base64`
[INFO] [stdout]  --> src/receive.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use base64::decode as decode_base64;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode` is never used
[INFO] [stdout]   --> src/coding.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn decode(transmission: Vec<f32>, sample_rate: u32) -> anyhow::Result<Vec<u8>> {
[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 `freq_to_base64` is never used
[INFO] [stdout]   --> src/coding.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn freq_to_base64(freq: f32) -> char {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `base64_value_to_base64_char` is never used
[INFO] [stdout]   --> src/coding.rs:90:4
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn base64_value_to_base64_char(n: u8) -> char {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `i16_to_f32` is never used
[INFO] [stdout]  --> src/receive/util.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn i16_to_f32(sample: &[i16]) -> Vec<f32> {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `u16_to_f32` is never used
[INFO] [stdout]   --> src/receive/util.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn u16_to_f32(sample: &[u16]) -> Vec<f32> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "3bb4592202a8ade36d0bfe70033b63ef0524406aa20466f82b9ded226995cebe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bb4592202a8ade36d0bfe70033b63ef0524406aa20466f82b9ded226995cebe", kill_on_drop: false }`
[INFO] [stdout] 3bb4592202a8ade36d0bfe70033b63ef0524406aa20466f82b9ded226995cebe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ce6d95318e4096879ab09527e99836036abb28dc30b938d4d40cdfd1b4e04be0
[INFO] running `Command { std: "docker" "start" "-a" "ce6d95318e4096879ab09527e99836036abb28dc30b938d4d40cdfd1b4e04be0", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]  --> src/transmit.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fs;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `base64::encode as encode_base64`
[INFO] [stderr]  --> src/transmit.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use base64::encode as encode_base64;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `fs::File`
[INFO] [stderr]  --> src/receive.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{fs::File, sync::mpsc};
[INFO] [stderr]   |           ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]  --> src/receive.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `base64::decode as decode_base64`
[INFO] [stderr]  --> src/receive.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use base64::decode as decode_base64;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `decode` is never used
[INFO] [stderr]   --> src/coding.rs:32:8
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub fn decode(transmission: Vec<f32>, sample_rate: u32) -> anyhow::Result<Vec<u8>> {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `freq_to_base64` is never used
[INFO] [stderr]   --> src/coding.rs:65:4
[INFO] [stderr]    |
[INFO] [stderr] 65 | fn freq_to_base64(freq: f32) -> char {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `base64_value_to_base64_char` is never used
[INFO] [stderr]   --> src/coding.rs:90:4
[INFO] [stderr]    |
[INFO] [stderr] 90 | fn base64_value_to_base64_char(n: u8) -> char {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `i16_to_f32` is never used
[INFO] [stderr]  --> src/receive/util.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn i16_to_f32(sample: &[i16]) -> Vec<f32> {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `u16_to_f32` is never used
[INFO] [stderr]   --> src/receive/util.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn u16_to_f32(sample: &[u16]) -> Vec<f32> {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `echolot` (bin "echolot" test) generated 10 warnings (run `cargo fix --bin "echolot" --tests` to apply 5 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/echolot-ee2711645994563a)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ce6d95318e4096879ab09527e99836036abb28dc30b938d4d40cdfd1b4e04be0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce6d95318e4096879ab09527e99836036abb28dc30b938d4d40cdfd1b4e04be0", kill_on_drop: false }`
[INFO] [stdout] ce6d95318e4096879ab09527e99836036abb28dc30b938d4d40cdfd1b4e04be0