[INFO] updating cached repository l3kn/patchwork
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/l3kn/patchwork
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/l3kn/patchwork" "work/ex/beta-1.38-1/sources/1.37.0/gh/l3kn/patchwork"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/l3kn/patchwork'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/l3kn/patchwork" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/l3kn/patchwork"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/l3kn/patchwork'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 83cc4af560d5ad7a6f7b8fc3ae07f6b96d756bcb
[INFO] sha for GitHub repo l3kn/patchwork: 83cc4af560d5ad7a6f7b8fc3ae07f6b96d756bcb
[INFO] validating manifest of l3kn/patchwork on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of l3kn/patchwork on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing l3kn/patchwork
[INFO] finished frobbing l3kn/patchwork
[INFO] frobbed toml for l3kn/patchwork written to work/ex/beta-1.38-1/sources/1.37.0/gh/l3kn/patchwork/Cargo.toml
[INFO] started frobbing l3kn/patchwork
[INFO] finished frobbing l3kn/patchwork
[INFO] frobbed toml for l3kn/patchwork written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/l3kn/patchwork/Cargo.toml
[INFO] crate l3kn/patchwork already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing l3kn/patchwork against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/l3kn/patchwork:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] a9620f013b1cdb5ef70ff2ff9db6fc20473c7e4f0839af57b46c0e22cae5ca5f
[INFO] running `"docker" "start" "-a" "a9620f013b1cdb5ef70ff2ff9db6fc20473c7e4f0839af57b46c0e22cae5ca5f"`
[INFO] [stderr]    Compiling sample v0.7.1
[INFO] [stderr]    Compiling hound v3.4.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling nix v0.9.0
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling alsa v0.2.1
[INFO] [stderr]    Compiling patchwork v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/source/math.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 |     sig1: Box<Source>,
[INFO] [stderr]   |               ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/source/math.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 |     sig2: Box<Source>,
[INFO] [stderr]   |               ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source/math.rs:10:15
[INFO] [stderr]    |
[INFO] [stderr] 10 |     sig1: Box<Source>,
[INFO] [stderr]    |               ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source/math.rs:11:15
[INFO] [stderr]    |
[INFO] [stderr] 11 |     sig2: Box<Source>,
[INFO] [stderr]    |               ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source/math.rs:15:15
[INFO] [stderr]    |
[INFO] [stderr] 15 |     sig1: Box<Source>,
[INFO] [stderr]    |               ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source/math.rs:16:15
[INFO] [stderr]    |
[INFO] [stderr] 16 |     sig2: Box<Source>,
[INFO] [stderr]    |               ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source/math.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn new(sig1: Box<Source>, sig2: Box<Source>) -> Self {
[INFO] [stderr]    |                          ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source/math.rs:20:45
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn new(sig1: Box<Source>, sig2: Box<Source>) -> Self {
[INFO] [stderr]    |                                             ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source/math.rs:26:26
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn new(sig1: Box<Source>, sig2: Box<Source>) -> Self {
[INFO] [stderr]    |                          ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source/math.rs:26:45
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn new(sig1: Box<Source>, sig2: Box<Source>) -> Self {
[INFO] [stderr]    |                                             ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source/math.rs:32:26
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn new(sig1: Box<Source>, sig2: Box<Source>) -> Self {
[INFO] [stderr]    |                          ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source/math.rs:32:45
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn new(sig1: Box<Source>, sig2: Box<Source>) -> Self {
[INFO] [stderr]    |                                             ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/alsa.rs:9:78
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn connect_midi_source_ports(s: &alsa::Seq, our_port: i32) -> Result<(), Box<error::Error>> {
[INFO] [stderr]   |                                                                              ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/alsa.rs:35:49
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn open_midi_dev() -> Result<alsa::Seq, Box<error::Error>> {
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/alsa.rs:55:57
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn open_audio_dev() -> Result<(alsa::PCM, u32), Box<error::Error>> {
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/karplus_strong.rs:42:29
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn set_input(&mut self, i: usize, val: f64) {}
[INFO] [stderr]    |                             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/karplus_strong.rs:42:39
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn set_input(&mut self, i: usize, val: f64) {}
[INFO] [stderr]    |                                       ^^^ help: consider prefixing with an underscore: `_val`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `patchwork::freeverb::Freeverb`
[INFO] [stderr]  --> src/bin/karplus_strong_vis.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use patchwork::freeverb::Freeverb;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `clamp_audio`, `clamp`
[INFO] [stderr]  --> src/main.rs:9:23
[INFO] [stderr]   |
[INFO] [stderr] 9 | use patchwork::util::{clamp, clamp_audio};
[INFO] [stderr]   |                       ^^^^^  ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:18:22
[INFO] [stderr]    |
[INFO] [stderr] 18 |     modules: Vec<Box<Module>>,
[INFO] [stderr]    |                      ^^^^^^ help: use `dyn`: `dyn Module`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:119:51
[INFO] [stderr]     |
[INFO] [stderr] 119 |     pub fn register_module(&mut self, module: Box<Module>) -> usize {
[INFO] [stderr]     |                                                   ^^^^^^ help: use `dyn`: `dyn Module`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:171:25
[INFO] [stderr]     |
[INFO] [stderr] 171 |     -> Result<bool, Box<error::Error>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:189:81
[INFO] [stderr]     |
[INFO] [stderr] 189 | fn read_midi_event(input: &mut seq::Input, rack: &mut Rack) -> Result<bool, Box<error::Error>> {
[INFO] [stderr]     |                                                                                 ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:203:28
[INFO] [stderr]     |
[INFO] [stderr] 203 | fn run() -> Result<(), Box<error::Error>> {
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]   --> src/bin/automaton.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |     for t in 0..(8 * 44100) {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_t`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print`
[INFO] [stderr]   --> src/bin/automaton.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn print(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `spec`
[INFO] [stderr]    --> src/bin/pluck.rs:165:9
[INFO] [stderr]     |
[INFO] [stderr] 165 |     let spec = hound::WavSpec {
[INFO] [stderr]     |         ^^^^ help: consider prefixing with an underscore: `_spec`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `fix_input`
[INFO] [stderr]    --> src/main.rs:111:5
[INFO] [stderr]     |
[INFO] [stderr] 111 |     pub fn fix_input(&mut self, i: usize, val: f64) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `W`
[INFO] [stderr]    --> src/main.rs:236:5
[INFO] [stderr]     |
[INFO] [stderr] 236 |     type W = Triangle;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.61s
[INFO] running `"docker" "inspect" "a9620f013b1cdb5ef70ff2ff9db6fc20473c7e4f0839af57b46c0e22cae5ca5f"`
[INFO] running `"docker" "rm" "-f" "a9620f013b1cdb5ef70ff2ff9db6fc20473c7e4f0839af57b46c0e22cae5ca5f"`
[INFO] [stdout] a9620f013b1cdb5ef70ff2ff9db6fc20473c7e4f0839af57b46c0e22cae5ca5f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/l3kn/patchwork:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4b696c46921ca4dd55c3e7409b0446d7b7a608c668c47bdb600d31154093abda
[INFO] running `"docker" "start" "-a" "4b696c46921ca4dd55c3e7409b0446d7b7a608c668c47bdb600d31154093abda"`
[INFO] [stderr]    Compiling patchwork v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/source/math.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 |     sig1: Box<Source>,
[INFO] [stderr]   |               ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/source/math.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 |     sig2: Box<Source>,
[INFO] [stderr]   |               ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source/math.rs:10:15
[INFO] [stderr]    |
[INFO] [stderr] 10 |     sig1: Box<Source>,
[INFO] [stderr]    |               ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source/math.rs:11:15
[INFO] [stderr]    |
[INFO] [stderr] 11 |     sig2: Box<Source>,
[INFO] [stderr]    |               ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source/math.rs:15:15
[INFO] [stderr]    |
[INFO] [stderr] 15 |     sig1: Box<Source>,
[INFO] [stderr]    |               ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source/math.rs:16:15
[INFO] [stderr]    |
[INFO] [stderr] 16 |     sig2: Box<Source>,
[INFO] [stderr]    |               ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source/math.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn new(sig1: Box<Source>, sig2: Box<Source>) -> Self {
[INFO] [stderr]    |                          ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source/math.rs:20:45
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn new(sig1: Box<Source>, sig2: Box<Source>) -> Self {
[INFO] [stderr]    |                                             ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source/math.rs:26:26
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn new(sig1: Box<Source>, sig2: Box<Source>) -> Self {
[INFO] [stderr]    |                          ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source/math.rs:26:45
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn new(sig1: Box<Source>, sig2: Box<Source>) -> Self {
[INFO] [stderr]    |                                             ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source/math.rs:32:26
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn new(sig1: Box<Source>, sig2: Box<Source>) -> Self {
[INFO] [stderr]    |                          ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/source/math.rs:32:45
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn new(sig1: Box<Source>, sig2: Box<Source>) -> Self {
[INFO] [stderr]    |                                             ^^^^^^ help: use `dyn`: `dyn Source`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/alsa.rs:9:78
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn connect_midi_source_ports(s: &alsa::Seq, our_port: i32) -> Result<(), Box<error::Error>> {
[INFO] [stderr]   |                                                                              ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/alsa.rs:35:49
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn open_midi_dev() -> Result<alsa::Seq, Box<error::Error>> {
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/alsa.rs:55:57
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn open_audio_dev() -> Result<(alsa::PCM, u32), Box<error::Error>> {
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `patchwork::freeverb::Freeverb`
[INFO] [stderr]  --> src/bin/karplus_strong_vis.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use patchwork::freeverb::Freeverb;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `spec`
[INFO] [stderr]    --> src/bin/pluck.rs:165:9
[INFO] [stderr]     |
[INFO] [stderr] 165 |     let spec = hound::WavSpec {
[INFO] [stderr]     |         ^^^^ help: consider prefixing with an underscore: `_spec`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `clamp_audio`, `clamp`
[INFO] [stderr]  --> src/main.rs:9:23
[INFO] [stderr]   |
[INFO] [stderr] 9 | use patchwork::util::{clamp, clamp_audio};
[INFO] [stderr]   |                       ^^^^^  ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:18:22
[INFO] [stderr]    |
[INFO] [stderr] 18 |     modules: Vec<Box<Module>>,
[INFO] [stderr]    |                      ^^^^^^ help: use `dyn`: `dyn Module`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:119:51
[INFO] [stderr]     |
[INFO] [stderr] 119 |     pub fn register_module(&mut self, module: Box<Module>) -> usize {
[INFO] [stderr]     |                                                   ^^^^^^ help: use `dyn`: `dyn Module`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:171:25
[INFO] [stderr]     |
[INFO] [stderr] 171 |     -> Result<bool, Box<error::Error>> {
[INFO] [stderr]     |                         ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:189:81
[INFO] [stderr]     |
[INFO] [stderr] 189 | fn read_midi_event(input: &mut seq::Input, rack: &mut Rack) -> Result<bool, Box<error::Error>> {
[INFO] [stderr]     |                                                                                 ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:203:28
[INFO] [stderr]     |
[INFO] [stderr] 203 | fn run() -> Result<(), Box<error::Error>> {
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `fix_input`
[INFO] [stderr]    --> src/main.rs:111:5
[INFO] [stderr]     |
[INFO] [stderr] 111 |     pub fn fix_input(&mut self, i: usize, val: f64) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `W`
[INFO] [stderr]    --> src/main.rs:236:5
[INFO] [stderr]     |
[INFO] [stderr] 236 |     type W = Triangle;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]   --> src/bin/automaton.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |     for t in 0..(8 * 44100) {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_t`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print`
[INFO] [stderr]   --> src/bin/automaton.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn print(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/karplus_strong.rs:42:29
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn set_input(&mut self, i: usize, val: f64) {}
[INFO] [stderr]    |                             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/karplus_strong.rs:42:39
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn set_input(&mut self, i: usize, val: f64) {}
[INFO] [stderr]    |                                       ^^^ help: consider prefixing with an underscore: `_val`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.63s
[INFO] running `"docker" "inspect" "4b696c46921ca4dd55c3e7409b0446d7b7a608c668c47bdb600d31154093abda"`
[INFO] running `"docker" "rm" "-f" "4b696c46921ca4dd55c3e7409b0446d7b7a608c668c47bdb600d31154093abda"`
[INFO] [stdout] 4b696c46921ca4dd55c3e7409b0446d7b7a608c668c47bdb600d31154093abda
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/l3kn/patchwork:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] c71c72c97b408f02805c7a2965ff07aec5e20511d5f759928e51600f24d270ec
[INFO] running `"docker" "start" "-a" "c71c72c97b408f02805c7a2965ff07aec5e20511d5f759928e51600f24d270ec"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/patchwork-74bd977fd09e7b82
[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] [stderr]      Running /opt/crater/target/debug/deps/automaton-ae1f429655bd675f
[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] [stderr]      Running /opt/crater/target/debug/deps/karplus_strong_vis-6b0613d625c7bde4
[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] [stderr]      Running /opt/crater/target/debug/deps/patchwork-dad382be1e7055ca
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pluck-791b5825f3cc89c9
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests patchwork
[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] [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] [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 `"docker" "inspect" "c71c72c97b408f02805c7a2965ff07aec5e20511d5f759928e51600f24d270ec"`
[INFO] running `"docker" "rm" "-f" "c71c72c97b408f02805c7a2965ff07aec5e20511d5f759928e51600f24d270ec"`
[INFO] [stdout] c71c72c97b408f02805c7a2965ff07aec5e20511d5f759928e51600f24d270ec