[INFO] updating cached repository weargoggles/netnoise
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/weargoggles/netnoise
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/weargoggles/netnoise" "work/ex/beta-1.38-1/sources/1.37.0/gh/weargoggles/netnoise"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/weargoggles/netnoise'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/weargoggles/netnoise" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/weargoggles/netnoise"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/weargoggles/netnoise'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7c272fa49ea3d183b275e23ca400e35977857589
[INFO] sha for GitHub repo weargoggles/netnoise: 7c272fa49ea3d183b275e23ca400e35977857589
[INFO] validating manifest of weargoggles/netnoise 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 weargoggles/netnoise 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 weargoggles/netnoise
[INFO] finished frobbing weargoggles/netnoise
[INFO] frobbed toml for weargoggles/netnoise written to work/ex/beta-1.38-1/sources/1.37.0/gh/weargoggles/netnoise/Cargo.toml
[INFO] started frobbing weargoggles/netnoise
[INFO] finished frobbing weargoggles/netnoise
[INFO] frobbed toml for weargoggles/netnoise written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/weargoggles/netnoise/Cargo.toml
[INFO] crate weargoggles/netnoise 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 weargoggles/netnoise 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/weargoggles/netnoise:/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] a14825e36536991e8ec92ef0f5a8d07beaa86f480b059b87d6a87eec4dc18ff4
[INFO] running `"docker" "start" "-a" "a14825e36536991e8ec92ef0f5a8d07beaa86f480b059b87d6a87eec4dc18ff4"`
[INFO] [stderr]    Compiling sdl2-sys v0.30.0
[INFO] [stderr]    Compiling libc v0.2.30
[INFO] [stderr]    Compiling num-integer v0.1.35
[INFO] [stderr]    Compiling num-iter v0.1.34
[INFO] [stderr]    Compiling num v0.1.40
[INFO] [stderr]    Compiling rand v0.3.16
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling sdl2 v0.30.0
[INFO] [stderr]    Compiling netnoise v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `spec`
[INFO] [stderr]    --> src/main.rs:106:70
[INFO] [stderr]     |
[INFO] [stderr] 106 |     let device = audio_subsystem.open_playback(None, &desired_spec, |spec| {
[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 variable: `e`
[INFO] [stderr]    --> src/main.rs:128:17
[INFO] [stderr]     |
[INFO] [stderr] 128 |             Err(e) => {
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/music.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let mut scale = vec![tonic]; //  in G
[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: constant item is never used: `DECAY`
[INFO] [stderr]  --> src/synth.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const DECAY: f32 = 0.0;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gen_wave`
[INFO] [stderr]   --> src/synth.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn gen_wave(samples_to_write: i32, frequency: f32, sample_rate: i32) -> Vec<i16> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.08s
[INFO] running `"docker" "inspect" "a14825e36536991e8ec92ef0f5a8d07beaa86f480b059b87d6a87eec4dc18ff4"`
[INFO] running `"docker" "rm" "-f" "a14825e36536991e8ec92ef0f5a8d07beaa86f480b059b87d6a87eec4dc18ff4"`
[INFO] [stdout] a14825e36536991e8ec92ef0f5a8d07beaa86f480b059b87d6a87eec4dc18ff4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/weargoggles/netnoise:/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] 33f5e9f357dd090c28f636bc4704fc495374df111e3e1f4a41bfd7d611404d52
[INFO] running `"docker" "start" "-a" "33f5e9f357dd090c28f636bc4704fc495374df111e3e1f4a41bfd7d611404d52"`
[INFO] [stderr]    Compiling netnoise v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `spec`
[INFO] [stderr]    --> src/main.rs:106:70
[INFO] [stderr]     |
[INFO] [stderr] 106 |     let device = audio_subsystem.open_playback(None, &desired_spec, |spec| {
[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 variable: `e`
[INFO] [stderr]    --> src/main.rs:128:17
[INFO] [stderr]     |
[INFO] [stderr] 128 |             Err(e) => {
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/music.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let mut scale = vec![tonic]; //  in G
[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: constant item is never used: `DECAY`
[INFO] [stderr]  --> src/synth.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const DECAY: f32 = 0.0;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gen_wave`
[INFO] [stderr]   --> src/synth.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn gen_wave(samples_to_write: i32, frequency: f32, sample_rate: i32) -> Vec<i16> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "33f5e9f357dd090c28f636bc4704fc495374df111e3e1f4a41bfd7d611404d52"`
[INFO] running `"docker" "rm" "-f" "33f5e9f357dd090c28f636bc4704fc495374df111e3e1f4a41bfd7d611404d52"`
[INFO] [stdout] 33f5e9f357dd090c28f636bc4704fc495374df111e3e1f4a41bfd7d611404d52
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/weargoggles/netnoise:/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] b020ce4f616b36dd6fb4a3dc453ea6e9d5b823a1479b8e18cae4fa0dd931cc47
[INFO] running `"docker" "start" "-a" "b020ce4f616b36dd6fb4a3dc453ea6e9d5b823a1479b8e18cae4fa0dd931cc47"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/netnoise-35889b3a6d23f260
[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" "b020ce4f616b36dd6fb4a3dc453ea6e9d5b823a1479b8e18cae4fa0dd931cc47"`
[INFO] running `"docker" "rm" "-f" "b020ce4f616b36dd6fb4a3dc453ea6e9d5b823a1479b8e18cae4fa0dd931cc47"`
[INFO] [stdout] b020ce4f616b36dd6fb4a3dc453ea6e9d5b823a1479b8e18cae4fa0dd931cc47