[INFO] cloning repository https://github.com/gabrielpoca/midi-sequencer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gabrielpoca/midi-sequencer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgabrielpoca%2Fmidi-sequencer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgabrielpoca%2Fmidi-sequencer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5ec521913a84fa19714ccf32010d9d167a2ee7bc
[INFO] checking gabrielpoca/midi-sequencer against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgabrielpoca%2Fmidi-sequencer" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/gabrielpoca/midi-sequencer
[INFO] finished tweaking git repo https://github.com/gabrielpoca/midi-sequencer
[INFO] tweaked toml for git repo https://github.com/gabrielpoca/midi-sequencer written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/gabrielpoca/midi-sequencer on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/gabrielpoca/midi-sequencer 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded midir v0.5.0
[INFO] [stderr]   Downloaded bitflags v0.3.3
[INFO] [stderr]   Downloaded pkg-config v0.3.14
[INFO] [stderr]   Downloaded coremidi v0.3.1
[INFO] [stderr]   Downloaded itertools v0.8.0
[INFO] [stderr]   Downloaded alsa v0.2.2
[INFO] [stderr]   Downloaded aho-corasick v0.7.4
[INFO] [stderr]   Downloaded winmm-sys v0.2.0
[INFO] [stderr]   Downloaded nix v0.9.0
[INFO] [stderr]   Downloaded tui v0.5.1
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a5dd7e10f0d4ea64af5b985516f37c757dc67ec2358f501aea7b43554eae710
[INFO] running `Command { std: "docker" "start" "-a" "6a5dd7e10f0d4ea64af5b985516f37c757dc67ec2358f501aea7b43554eae710", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a5dd7e10f0d4ea64af5b985516f37c757dc67ec2358f501aea7b43554eae710", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a5dd7e10f0d4ea64af5b985516f37c757dc67ec2358f501aea7b43554eae710", kill_on_drop: false }`
[INFO] [stdout] 6a5dd7e10f0d4ea64af5b985516f37c757dc67ec2358f501aea7b43554eae710
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5423d676c6189070b85e228b7ba8a35b9318bfd6e24378d786cb1e3b1ace65dd
[INFO] running `Command { std: "docker" "start" "-a" "5423d676c6189070b85e228b7ba8a35b9318bfd6e24378d786cb1e3b1ace65dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]    Compiling sdl2 v0.32.2
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]     Checking regex-syntax v0.6.7
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking unicode-segmentation v1.3.0
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking aho-corasick v0.7.4
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling sdl2-sys v0.32.6
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking bitflags v0.3.3
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking nix v0.9.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking termion v1.5.3
[INFO] [stderr]     Checking tui v0.5.1
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking alsa v0.2.2
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking midir v0.5.0
[INFO] [stderr]     Checking midi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/output.rs:21:50
[INFO] [stdout]    |
[INFO] [stdout] 21 |                         match msg.unwrap_or_else({|_| Event::None }) {
[INFO] [stdout]    |                                                  ^               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 21 -                         match msg.unwrap_or_else({|_| Event::None }) {
[INFO] [stdout] 21 +                         match msg.unwrap_or_else(|_| Event::None ) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/player/mod.rs:24:52
[INFO] [stdout]    |
[INFO] [stdout] 24 |                     let event = msg.unwrap_or_else({ |_| Event::None });
[INFO] [stdout]    |                                                    ^^               ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 24 -                     let event = msg.unwrap_or_else({ |_| Event::None });
[INFO] [stdout] 24 +                     let event = msg.unwrap_or_else(|_| Event::None );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::info`
[INFO] [stdout]  --> src/ui/render.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use log::info;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/output.rs:21:50
[INFO] [stdout]    |
[INFO] [stdout] 21 |                         match msg.unwrap_or_else({|_| Event::None }) {
[INFO] [stdout]    |                                                  ^               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 21 -                         match msg.unwrap_or_else({|_| Event::None }) {
[INFO] [stdout] 21 +                         match msg.unwrap_or_else(|_| Event::None ) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/player/mod.rs:24:52
[INFO] [stdout]    |
[INFO] [stdout] 24 |                     let event = msg.unwrap_or_else({ |_| Event::None });
[INFO] [stdout]    |                                                    ^^               ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 24 -                     let event = msg.unwrap_or_else({ |_| Event::None });
[INFO] [stdout] 24 +                     let event = msg.unwrap_or_else(|_| Event::None );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::info`
[INFO] [stdout]  --> src/ui/render.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use log::info;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:33:28
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn run() -> Result<(), Box<Error>> {
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn run() -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/output.rs:44:40
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn get_port() -> Result<usize, Box<Error>> {
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn get_port() -> Result<usize, Box<dyn Error>> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:33:28
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn run() -> Result<(), Box<Error>> {
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn run() -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/output.rs:44:40
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn get_port() -> Result<usize, Box<Error>> {
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn get_port() -> Result<usize, Box<dyn Error>> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:29:47
[INFO] [stdout]    |
[INFO] [stdout] 29 |         Err(err) => println!("Error: {}", err.description()),
[INFO] [stdout]    |                                               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:29:47
[INFO] [stdout]    |
[INFO] [stdout] 29 |         Err(err) => println!("Error: {}", err.description()),
[INFO] [stdout]    |                                               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ui/render.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let mut window = video_subsystem
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ui/render.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let mut window = video_subsystem
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `recv` is never read
[INFO] [stdout]   --> src/ui/render.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Render {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 26 |     pub recv: Receiver<events::Event>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `recv` is never read
[INFO] [stdout]   --> src/ui/render.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Render {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 26 |     pub recv: Receiver<events::Event>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/player/keyboard_handler.rs:60:28
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn key_to_note<'a>(&self, key: Key) -> Cow<str> {
[INFO] [stdout]    |                            ^^^^^               ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn key_to_note<'a>(&self, key: Key) -> Cow<'_, str> {
[INFO] [stdout]    |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/player/keyboard_handler.rs:60:28
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn key_to_note<'a>(&self, key: Key) -> Cow<str> {
[INFO] [stdout]    |                            ^^^^^               ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn key_to_note<'a>(&self, key: Key) -> Cow<'_, str> {
[INFO] [stdout]    |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.80s
[INFO] running `Command { std: "docker" "inspect" "5423d676c6189070b85e228b7ba8a35b9318bfd6e24378d786cb1e3b1ace65dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5423d676c6189070b85e228b7ba8a35b9318bfd6e24378d786cb1e3b1ace65dd", kill_on_drop: false }`
[INFO] [stdout] 5423d676c6189070b85e228b7ba8a35b9318bfd6e24378d786cb1e3b1ace65dd
