[INFO] fetching crate echolot 0.1.1...
[INFO] testing echolot-0.1.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate echolot 0.1.1 into /workspace/builds/worker-4-tc1/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-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate echolot 0.1.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd5f2cddf5aa0c2e21e1a34fa4c476ecbf4636d2572828775b53a49bb47fc926
[INFO] running `Command { std: "docker" "start" "-a" "bd5f2cddf5aa0c2e21e1a34fa4c476ecbf4636d2572828775b53a49bb47fc926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd5f2cddf5aa0c2e21e1a34fa4c476ecbf4636d2572828775b53a49bb47fc926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd5f2cddf5aa0c2e21e1a34fa4c476ecbf4636d2572828775b53a49bb47fc926", kill_on_drop: false }`
[INFO] [stdout] bd5f2cddf5aa0c2e21e1a34fa4c476ecbf4636d2572828775b53a49bb47fc926
[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=warn" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7551f37f2eaf2de5134fcdfdd86d5eece93453847de4723b45d0f88afe5dbb3
[INFO] running `Command { std: "docker" "start" "-a" "e7551f37f2eaf2de5134fcdfdd86d5eece93453847de4723b45d0f88afe5dbb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling strength_reduce v0.2.3
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling cpal v0.13.5
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling rsor v0.1.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[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 primal-check v0.3.1
[INFO] [stderr]    Compiling transpose v0.2.1
[INFO] [stderr]    Compiling rustfft v6.0.1
[INFO] [stderr]    Compiling parking_lot v0.11.2
[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)]` 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)]` 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 18.20s
[INFO] running `Command { std: "docker" "inspect" "e7551f37f2eaf2de5134fcdfdd86d5eece93453847de4723b45d0f88afe5dbb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7551f37f2eaf2de5134fcdfdd86d5eece93453847de4723b45d0f88afe5dbb3", kill_on_drop: false }`
[INFO] [stdout] e7551f37f2eaf2de5134fcdfdd86d5eece93453847de4723b45d0f88afe5dbb3
[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=warn" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db54d09fd0a701c3485786527bba8e06dbf7ac093c2f1ad6d78cb5f82862102d
[INFO] running `Command { std: "docker" "start" "-a" "db54d09fd0a701c3485786527bba8e06dbf7ac093c2f1ad6d78cb5f82862102d", 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)]` 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)]` 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 0.55s
[INFO] running `Command { std: "docker" "inspect" "db54d09fd0a701c3485786527bba8e06dbf7ac093c2f1ad6d78cb5f82862102d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db54d09fd0a701c3485786527bba8e06dbf7ac093c2f1ad6d78cb5f82862102d", kill_on_drop: false }`
[INFO] [stdout] db54d09fd0a701c3485786527bba8e06dbf7ac093c2f1ad6d78cb5f82862102d
[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=warn" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ddf28148130874a20d3495d8a947457ae44a9834b0778fdb399fdb2992508a60
[INFO] running `Command { std: "docker" "start" "-a" "ddf28148130874a20d3495d8a947457ae44a9834b0778fdb399fdb2992508a60", 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)]` 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)]` 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 0.13s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/echolot-5cb67e2339848d7b)
[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" "ddf28148130874a20d3495d8a947457ae44a9834b0778fdb399fdb2992508a60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddf28148130874a20d3495d8a947457ae44a9834b0778fdb399fdb2992508a60", kill_on_drop: false }`
[INFO] [stdout] ddf28148130874a20d3495d8a947457ae44a9834b0778fdb399fdb2992508a60