[INFO] cloning repository https://github.com/kandiyohi/rust-launchkey
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kandiyohi/rust-launchkey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkandiyohi%2Frust-launchkey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkandiyohi%2Frust-launchkey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c8a7dc078643820ade1f8d3f979b489ac0b1779
[INFO] checking kandiyohi/rust-launchkey against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkandiyohi%2Frust-launchkey" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kandiyohi/rust-launchkey on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kandiyohi/rust-launchkey
[INFO] finished tweaking git repo https://github.com/kandiyohi/rust-launchkey
[INFO] tweaked toml for git repo https://github.com/kandiyohi/rust-launchkey written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/kandiyohi/rust-launchkey already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bd3ffdaafeeaad47b682fe246fd1585a4321fcbc5cb75f63aabffe60d89d54ff
[INFO] running `Command { std: "docker" "start" "-a" "bd3ffdaafeeaad47b682fe246fd1585a4321fcbc5cb75f63aabffe60d89d54ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd3ffdaafeeaad47b682fe246fd1585a4321fcbc5cb75f63aabffe60d89d54ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd3ffdaafeeaad47b682fe246fd1585a4321fcbc5cb75f63aabffe60d89d54ff", kill_on_drop: false }`
[INFO] [stdout] bd3ffdaafeeaad47b682fe246fd1585a4321fcbc5cb75f63aabffe60d89d54ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6901706622f5d7f087cb657a4e4e7791d3bf635443ab33ca6b2a8ebd9000f6ae
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6901706622f5d7f087cb657a4e4e7791d3bf635443ab33ca6b2a8ebd9000f6ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking jack-sys v0.1.5
[INFO] [stderr]     Checking jack v0.5.6
[INFO] [stderr]     Checking midi_stuff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::mpsc::Receiver`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::sync::mpsc::Receiver;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/main.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | / macro_rules! midi {
[INFO] [stdout] 24 | |     ( $( $x:expr ),* ) => {
[INFO] [stdout] 25 | |         {
[INFO] [stdout] 26 | |             let mut temp_vec = Vec::new();
[INFO] [stdout] ...  |
[INFO] [stdout] 35 | |     };
[INFO] [stdout] 36 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::mpsc::Receiver`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::sync::mpsc::Receiver;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/main.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | / macro_rules! midi {
[INFO] [stdout] 24 | |     ( $( $x:expr ),* ) => {
[INFO] [stdout] 25 | |         {
[INFO] [stdout] 26 | |             let mut temp_vec = Vec::new();
[INFO] [stdout] ...  |
[INFO] [stdout] 35 | |     };
[INFO] [stdout] 36 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `god`
[INFO] [stdout]    --> src/main.rs:211:10
[INFO] [stdout]     |
[INFO] [stdout] 211 | fn init (god: &mut Handler) {
[INFO] [stdout]     |          ^^^ help: if this is intentional, prefix it with an underscore: `_god`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rx`
[INFO] [stdout]    --> src/main.rs:362:13
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let (tx,rx) = channel::<&str>();
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_rx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `client`
[INFO] [stdout]    --> src/main.rs:366:9
[INFO] [stdout]     |
[INFO] [stdout] 366 |     let client = AsyncClient::new(client, nhandler, handler);
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_client`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:374:20
[INFO] [stdout]     |
[INFO] [stdout] 374 |         if let Err(e) = r {
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `client`
[INFO] [stdout]    --> src/main.rs:236:27
[INFO] [stdout]     |
[INFO] [stdout] 236 |     fn process(&mut self, client: &Client, scope: &ProcessScope) -> JackControl {
[INFO] [stdout]     |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_client`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `god`
[INFO] [stdout]    --> src/main.rs:211:10
[INFO] [stdout]     |
[INFO] [stdout] 211 | fn init (god: &mut Handler) {
[INFO] [stdout]     |          ^^^ help: if this is intentional, prefix it with an underscore: `_god`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rx`
[INFO] [stdout]    --> src/main.rs:362:13
[INFO] [stdout]     |
[INFO] [stdout] 362 |     let (tx,rx) = channel::<&str>();
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_rx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `client`
[INFO] [stdout]    --> src/main.rs:366:9
[INFO] [stdout]     |
[INFO] [stdout] 366 |     let client = AsyncClient::new(client, nhandler, handler);
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_client`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:374:20
[INFO] [stdout]     |
[INFO] [stdout] 374 |         if let Err(e) = r {
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `client`
[INFO] [stdout]    --> src/main.rs:236:27
[INFO] [stdout]     |
[INFO] [stdout] 236 |     fn process(&mut self, client: &Client, scope: &ProcessScope) -> JackControl {
[INFO] [stdout]     |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_client`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MidiMessage`
[INFO] [stdout]   --> src/main.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct MidiMessage {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_bytes`
[INFO] [stdout]   --> src/main.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn from_bytes(status: u8, data_1: u8, data_2: u8) -> Result<MidiMessage,String> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_description`
[INFO] [stdout]   --> src/main.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn from_description(status: String, channel: u8, data_1: u8, data_2: u8) -> Result<MidiMessage,String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `in_port`
[INFO] [stdout]    --> src/main.rs:175:5
[INFO] [stdout]     |
[INFO] [stdout] 175 |     in_port: &'a mut Port<MidiInSpec>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `send_null`
[INFO] [stdout]    --> src/main.rs:177:5
[INFO] [stdout]     |
[INFO] [stdout] 177 |     send_null: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `need_init`
[INFO] [stdout]    --> src/main.rs:178:5
[INFO] [stdout]     |
[INFO] [stdout] 178 |     need_init: Mutex<RefCell<bool>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `init`
[INFO] [stdout]    --> src/main.rs:211:4
[INFO] [stdout]     |
[INFO] [stdout] 211 | fn init (god: &mut Handler) {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `IN_CONTROL_ON`
[INFO] [stdout]    --> src/main.rs:214:1
[INFO] [stdout]     |
[INFO] [stdout] 214 | / const IN_CONTROL_ON: RawMidi = RawMidi {
[INFO] [stdout] 215 | |     time: 0,
[INFO] [stdout] 216 | |     bytes: &[143,15,127],
[INFO] [stdout] 217 | | };
[INFO] [stdout]     | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MidiMessage`
[INFO] [stdout]   --> src/main.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct MidiMessage {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_bytes`
[INFO] [stdout]   --> src/main.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn from_bytes(status: u8, data_1: u8, data_2: u8) -> Result<MidiMessage,String> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_description`
[INFO] [stdout]   --> src/main.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn from_description(status: String, channel: u8, data_1: u8, data_2: u8) -> Result<MidiMessage,String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `in_port`
[INFO] [stdout]    --> src/main.rs:175:5
[INFO] [stdout]     |
[INFO] [stdout] 175 |     in_port: &'a mut Port<MidiInSpec>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `send_null`
[INFO] [stdout]    --> src/main.rs:177:5
[INFO] [stdout]     |
[INFO] [stdout] 177 |     send_null: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `need_init`
[INFO] [stdout]    --> src/main.rs:178:5
[INFO] [stdout]     |
[INFO] [stdout] 178 |     need_init: Mutex<RefCell<bool>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `init`
[INFO] [stdout]    --> src/main.rs:211:4
[INFO] [stdout]     |
[INFO] [stdout] 211 | fn init (god: &mut Handler) {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `IN_CONTROL_ON`
[INFO] [stdout]    --> src/main.rs:214:1
[INFO] [stdout]     |
[INFO] [stdout] 214 | / const IN_CONTROL_ON: RawMidi = RawMidi {
[INFO] [stdout] 215 | |     time: 0,
[INFO] [stdout] 216 | |     bytes: &[143,15,127],
[INFO] [stdout] 217 | | };
[INFO] [stdout]     | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:241:13
[INFO] [stdout]     |
[INFO] [stdout] 241 |             messenger.send("Coloring LEDs");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:241:13
[INFO] [stdout]     |
[INFO] [stdout] 241 |             messenger.send("Coloring LEDs");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.35s
[INFO] running `Command { std: "docker" "inspect" "6901706622f5d7f087cb657a4e4e7791d3bf635443ab33ca6b2a8ebd9000f6ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6901706622f5d7f087cb657a4e4e7791d3bf635443ab33ca6b2a8ebd9000f6ae", kill_on_drop: false }`
[INFO] [stdout] 6901706622f5d7f087cb657a4e4e7791d3bf635443ab33ca6b2a8ebd9000f6ae