[INFO] updating cached repository hughrawlinson/keyboard-midi
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hughrawlinson/keyboard-midi
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hughrawlinson/keyboard-midi" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/hughrawlinson/keyboard-midi"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/hughrawlinson/keyboard-midi'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hughrawlinson/keyboard-midi" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/hughrawlinson/keyboard-midi"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/hughrawlinson/keyboard-midi'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c52b2474ce1a48ba90afab4769180b37cc451800
[INFO] sha for GitHub repo hughrawlinson/keyboard-midi: c52b2474ce1a48ba90afab4769180b37cc451800
[INFO] validating manifest of hughrawlinson/keyboard-midi on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hughrawlinson/keyboard-midi on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hughrawlinson/keyboard-midi
[INFO] finished frobbing hughrawlinson/keyboard-midi
[INFO] frobbed toml for hughrawlinson/keyboard-midi written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/hughrawlinson/keyboard-midi/Cargo.toml
[INFO] started frobbing hughrawlinson/keyboard-midi
[INFO] finished frobbing hughrawlinson/keyboard-midi
[INFO] frobbed toml for hughrawlinson/keyboard-midi written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/hughrawlinson/keyboard-midi/Cargo.toml
[INFO] crate hughrawlinson/keyboard-midi already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking hughrawlinson/keyboard-midi against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-4/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/hughrawlinson/keyboard-midi:/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=forbid" "-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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ec200177fe989236410a37f75b8dc73588664cb942af1b519ee825c0a3f621ae
[INFO] running `"docker" "start" "-a" "ec200177fe989236410a37f75b8dc73588664cb942af1b519ee825c0a3f621ae"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking nix v0.9.0
[INFO] [stderr]     Checking alsa-sys v0.1.1
[INFO] [stderr]     Checking alsa v0.2.0
[INFO] [stderr]     Checking midir v0.5.0
[INFO] [stderr]     Checking keyboard-midi v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::thread;
[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]   --> main.rs:32:60
[INFO] [stderr]    |
[INFO] [stderr] 32 | fn run(score: [(u8, u8); 9], speed: u16) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> main.rs:107:35
[INFO] [stderr]     |
[INFO] [stderr] 107 |                 play_note(note.0, (position as f32/scoreDuration as f32));
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::thread;
[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]   --> main.rs:32:60
[INFO] [stderr]    |
[INFO] [stderr] 32 | fn run(score: [(u8, u8); 9], speed: u16) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> main.rs:107:35
[INFO] [stderr]     |
[INFO] [stderr] 107 |                 play_note(note.0, (position as f32/scoreDuration as f32));
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `scoreDuration` should have a snake case name
[INFO] [stderr]   --> main.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let scoreDuration: u16 = speed * score.to_vec().iter()
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `score_duration`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `scoreDuration` should have a snake case name
[INFO] [stderr]   --> main.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let scoreDuration: u16 = speed * score.to_vec().iter()
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `score_duration`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.57s
[INFO] running `"docker" "inspect" "ec200177fe989236410a37f75b8dc73588664cb942af1b519ee825c0a3f621ae"`
[INFO] running `"docker" "rm" "-f" "ec200177fe989236410a37f75b8dc73588664cb942af1b519ee825c0a3f621ae"`
[INFO] [stdout] ec200177fe989236410a37f75b8dc73588664cb942af1b519ee825c0a3f621ae