[INFO] updating cached repository https://github.com/jcmorrow/synth
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b5b26fa0bf961bec8558116018bb25ca0f644aa4
[INFO] checking jcmorrow/synth against try#1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0 for pr-69530
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcmorrow%2Fsynth" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jcmorrow/synth on toolchain 1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jcmorrow/synth
[INFO] finished tweaking git repo https://github.com/jcmorrow/synth
[INFO] tweaked toml for git repo https://github.com/jcmorrow/synth written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/jcmorrow/synth already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 98b18748f812333a0f30e7b304d972324d63055144601ef3e9f1457442cf05ac
[INFO] running `"docker" "start" "-a" "98b18748f812333a0f30e7b304d972324d63055144601ef3e9f1457442cf05ac"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling anyhow v1.0.20
[INFO] [stderr]    Compiling cpal v0.10.0
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.9
[INFO] [stderr]     Checking backtrace-sys v0.1.32
[INFO] [stderr]     Checking getrandom v0.1.13
[INFO] [stderr]     Checking alsa-sys v0.1.2
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking termion v1.5.3
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking synth v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `stdin`
[INFO] [stderr]   --> src/main.rs:12:15
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::io::{stdin, stdout, Read, Write};
[INFO] [stderr]    |               ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `termion::event::Key::*`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use termion::event::Key::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `termion::input::TermRead`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use termion::input::TermRead;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `stdin`
[INFO] [stderr]   --> src/main.rs:12:15
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::io::{stdin, stdout, Read, Write};
[INFO] [stderr]    |               ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `termion::event::Key::*`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use termion::event::Key::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `termion::input::TermRead`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use termion::input::TermRead;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `wavetable_entry`
[INFO] [stderr]  --> src/drum.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn wavetable_entry(wavetable: &mut Vec<f32>, clock: usize) -> f32 {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `wavetable`
[INFO] [stderr]   --> src/drum.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn wavetable(period: usize, amplitude: f32) -> Vec<f32> {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `wavetable_entry`
[INFO] [stderr]  --> src/sin.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn wavetable_entry(wavetable: &mut Vec<f32>, clock: usize) -> f32 {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `wavetable`
[INFO] [stderr]  --> src/sin.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn wavetable(period: usize, amplitude: f32) -> Vec<f32> {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `wavetable_entry`
[INFO] [stderr]  --> src/drum.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn wavetable_entry(wavetable: &mut Vec<f32>, clock: usize) -> f32 {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `wavetable`
[INFO] [stderr]   --> src/drum.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn wavetable(period: usize, amplitude: f32) -> Vec<f32> {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `wavetable_entry`
[INFO] [stderr]  --> src/sin.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn wavetable_entry(wavetable: &mut Vec<f32>, clock: usize) -> f32 {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `wavetable`
[INFO] [stderr]  --> src/sin.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn wavetable(period: usize, amplitude: f32) -> Vec<f32> {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.58s
[INFO] running `"docker" "inspect" "98b18748f812333a0f30e7b304d972324d63055144601ef3e9f1457442cf05ac"`
[INFO] running `"docker" "rm" "-f" "98b18748f812333a0f30e7b304d972324d63055144601ef3e9f1457442cf05ac"`
[INFO] [stdout] 98b18748f812333a0f30e7b304d972324d63055144601ef3e9f1457442cf05ac