[INFO] cloning repository https://github.com/aweinstock314/keyboard-theremin [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aweinstock314/keyboard-theremin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faweinstock314%2Fkeyboard-theremin", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faweinstock314%2Fkeyboard-theremin'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 33ce8943948f20a3faf624f70fbc1d999f537d5f [INFO] testing aweinstock314/keyboard-theremin against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faweinstock314%2Fkeyboard-theremin" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/aweinstock314/keyboard-theremin on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/aweinstock314/keyboard-theremin [INFO] finished tweaking git repo https://github.com/aweinstock314/keyboard-theremin [INFO] tweaked toml for git repo https://github.com/aweinstock314/keyboard-theremin written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/aweinstock314/keyboard-theremin already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded target_build_utils v0.3.1 [INFO] [stderr] Downloaded smallvec v0.4.4 [INFO] [stderr] Downloaded xml-rs v0.6.2 [INFO] [stderr] Downloaded libloading v0.3.4 [INFO] [stderr] Downloaded wayland-protocols v0.9.10 [INFO] [stderr] Downloaded serde_json v0.9.10 [INFO] [stderr] Downloaded backtrace v0.3.3 [INFO] [stderr] Downloaded ole32-sys v0.2.0 [INFO] [stderr] Downloaded rustc-demangle v0.1.5 [INFO] [stderr] Downloaded coreaudio-rs v0.7.0 [INFO] [stderr] Downloaded wayland-kbd v0.9.1 [INFO] [stderr] Downloaded coreaudio-sys v0.1.2 [INFO] [stderr] Downloaded core-foundation-sys v0.3.1 [INFO] [stderr] Downloaded core-foundation v0.3.0 [INFO] [stderr] Downloaded core-foundation-sys v0.4.4 [INFO] [stderr] Downloaded fnv v1.0.5 [INFO] [stderr] Downloaded cpal v0.6.0 [INFO] [stderr] Downloaded core-foundation v0.4.4 [INFO] [stderr] Downloaded cgl v0.2.1 [INFO] [stderr] Downloaded shared_library v0.1.7 [INFO] [stderr] Downloaded glium v0.17.1 [INFO] [stderr] Downloaded core-graphics v0.8.2 [INFO] [stderr] Downloaded wayland-client v0.9.10 [INFO] [stderr] Downloaded cc v1.0.1 [INFO] [stderr] Downloaded cocoa v0.9.2 [INFO] [stderr] Downloaded bitflags v1.0.0 [INFO] [stderr] Downloaded stdweb v0.1.3 [INFO] [stderr] Downloaded dbghelp-sys v0.2.0 [INFO] [stderr] Downloaded glutin v0.9.2 [INFO] [stderr] Downloaded wayland-sys v0.9.10 [INFO] [stderr] Downloaded x11-dl v2.15.0 [INFO] [stderr] Downloaded libc v0.2.32 [INFO] [stderr] Downloaded wayland-scanner v0.9.10 [INFO] [stderr] Downloaded wayland-window v0.7.0 [INFO] [stderr] Downloaded alsa-sys v0.1.1 [INFO] [stderr] Downloaded gl_generator v0.5.5 [INFO] [stderr] Downloaded gleam v0.4.8 [INFO] [stderr] Downloaded winit v0.7.6 [INFO] [stderr] Downloaded backtrace-sys v0.1.15 [INFO] [stderr] Downloaded khronos_api v1.0.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8f45c6dd005360aa308211a3c369e543d78b5d22caa558bdb2f8592156bc68bf [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" "8f45c6dd005360aa308211a3c369e543d78b5d22caa558bdb2f8592156bc68bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8f45c6dd005360aa308211a3c369e543d78b5d22caa558bdb2f8592156bc68bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8f45c6dd005360aa308211a3c369e543d78b5d22caa558bdb2f8592156bc68bf", kill_on_drop: false }` [INFO] [stdout] 8f45c6dd005360aa308211a3c369e543d78b5d22caa558bdb2f8592156bc68bf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0f5e3ade4dadd8eab8aa29403a433428fda29a2a24ea6d4a60a21e4174cf9579 [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" "0f5e3ade4dadd8eab8aa29403a433428fda29a2a24ea6d4a60a21e4174cf9579", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.32 [INFO] [stderr] Compiling bitflags v1.0.0 [INFO] [stderr] Compiling dtoa v0.4.2 [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Compiling bitflags v0.9.1 [INFO] [stderr] Compiling winapi v0.2.8 [INFO] [stderr] Compiling cc v1.0.1 [INFO] [stderr] Compiling bitflags v0.7.0 [INFO] [stderr] Compiling rustc-demangle v0.1.5 [INFO] [stderr] Compiling smallvec v0.4.4 [INFO] [stderr] Compiling phf_shared v0.7.21 [INFO] [stderr] Compiling x11-dl v2.15.0 [INFO] [stderr] Compiling alsa-sys v0.1.1 [INFO] [stderr] Compiling xml-rs v0.6.2 [INFO] [stderr] Compiling phf v0.7.21 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] Compiling serde_json v0.9.10 [INFO] [stderr] Compiling rand v0.3.17 [INFO] [stderr] Compiling shared_library v0.1.7 [INFO] [stderr] Compiling osmesa-sys v0.1.2 [INFO] [stderr] Compiling cpal v0.6.0 [INFO] [stderr] Compiling fs2 v0.2.5 [INFO] [stderr] Compiling backtrace-sys v0.1.15 [INFO] [stderr] Compiling memmap v0.4.0 [INFO] [stderr] Compiling wayland-scanner v0.9.10 [INFO] [stderr] Compiling gl_generator v0.5.5 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Compiling tempfile v2.2.0 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Compiling target_build_utils v0.3.1 [INFO] [stderr] Compiling wayland-client v0.9.10 [INFO] [stderr] Compiling wayland-protocols v0.9.10 [INFO] [stderr] Compiling glutin v0.9.2 [INFO] [stderr] Compiling glium v0.17.1 [INFO] [stderr] Compiling libloading v0.3.4 [INFO] [stderr] Compiling dlib v0.3.1 [INFO] [stderr] Compiling wayland-sys v0.9.10 [INFO] [stderr] Compiling backtrace v0.3.3 [INFO] [stderr] Compiling wayland-kbd v0.9.1 [INFO] [stderr] Compiling wayland-window v0.7.0 [INFO] [stderr] Compiling winit v0.7.6 [INFO] [stderr] Compiling keyboard_theremin v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:53:22 [INFO] [stdout] | [INFO] [stdout] 53 | fn ui(s: Sender f64 + Send, Fn(f64, f64) -> f64 + Send>>) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64 + Send` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:53:45 [INFO] [stdout] | [INFO] [stdout] 53 | fn ui(s: Sender f64 + Send, Fn(f64, f64) -> f64 + Send>>) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64 + Send` [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:80:36 [INFO] [stdout] | [INFO] [stdout] 80 | let lfo_f: Box f64 + Send + 'static> = match lfo { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64 + Send + 'static` [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `play_note` [INFO] [stdout] --> src/main.rs:26:4 [INFO] [stdout] | [INFO] [stdout] 26 | fn play_note(Note(n, amplitude, freq, wave, lfo): Note) where [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `aplay_player` [INFO] [stdout] --> src/main.rs:126:4 [INFO] [stdout] | [INFO] [stdout] 126 | fn aplay_player(r: Receiver>) where [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 56.91s [INFO] running `Command { std: "docker" "inspect" "0f5e3ade4dadd8eab8aa29403a433428fda29a2a24ea6d4a60a21e4174cf9579", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0f5e3ade4dadd8eab8aa29403a433428fda29a2a24ea6d4a60a21e4174cf9579", kill_on_drop: false }` [INFO] [stdout] 0f5e3ade4dadd8eab8aa29403a433428fda29a2a24ea6d4a60a21e4174cf9579 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", 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] c0b13b5a11f4166956d72419ba658ab60af16fde8e3feccd0b0da90a58f6cc01 [INFO] running `Command { std: "docker" "start" "-a" "c0b13b5a11f4166956d72419ba658ab60af16fde8e3feccd0b0da90a58f6cc01", kill_on_drop: false }` [INFO] [stderr] Compiling keyboard_theremin v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:53:22 [INFO] [stdout] | [INFO] [stdout] 53 | fn ui(s: Sender f64 + Send, Fn(f64, f64) -> f64 + Send>>) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64 + Send` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:53:45 [INFO] [stdout] | [INFO] [stdout] 53 | fn ui(s: Sender f64 + Send, Fn(f64, f64) -> f64 + Send>>) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64 + Send` [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:80:36 [INFO] [stdout] | [INFO] [stdout] 80 | let lfo_f: Box f64 + Send + 'static> = match lfo { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64 + Send + 'static` [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `play_note` [INFO] [stdout] --> src/main.rs:26:4 [INFO] [stdout] | [INFO] [stdout] 26 | fn play_note(Note(n, amplitude, freq, wave, lfo): Note) where [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `aplay_player` [INFO] [stdout] --> src/main.rs:126:4 [INFO] [stdout] | [INFO] [stdout] 126 | fn aplay_player(r: Receiver>) where [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.97s [INFO] running `Command { std: "docker" "inspect" "c0b13b5a11f4166956d72419ba658ab60af16fde8e3feccd0b0da90a58f6cc01", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c0b13b5a11f4166956d72419ba658ab60af16fde8e3feccd0b0da90a58f6cc01", kill_on_drop: false }` [INFO] [stdout] c0b13b5a11f4166956d72419ba658ab60af16fde8e3feccd0b0da90a58f6cc01 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 21bbf7201844eccbaff8706fd54137d9285a519bdcf146b9a7b9a2b76ef0238c [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" "21bbf7201844eccbaff8706fd54137d9285a519bdcf146b9a7b9a2b76ef0238c", kill_on_drop: false }` [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:53:22 [INFO] [stderr] | [INFO] [stderr] 53 | fn ui(s: Sender f64 + Send, Fn(f64, f64) -> f64 + Send>>) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64 + Send` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stderr] = note: for more information, see issue #80165 [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:53:45 [INFO] [stderr] | [INFO] [stderr] 53 | fn ui(s: Sender f64 + Send, Fn(f64, f64) -> f64 + Send>>) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64 + Send` [INFO] [stderr] | [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stderr] = note: for more information, see issue #80165 [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:80:36 [INFO] [stderr] | [INFO] [stderr] 80 | let lfo_f: Box f64 + Send + 'static> = match lfo { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64, f64) -> f64 + Send + 'static` [INFO] [stderr] | [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stderr] = note: for more information, see issue #80165 [INFO] [stderr] [INFO] [stderr] warning: function is never used: `play_note` [INFO] [stderr] --> src/main.rs:26:4 [INFO] [stderr] | [INFO] [stderr] 26 | fn play_note(Note(n, amplitude, freq, wave, lfo): Note) where [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `aplay_player` [INFO] [stderr] --> src/main.rs:126:4 [INFO] [stderr] | [INFO] [stderr] 126 | fn aplay_player(r: Receiver>) where [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/keyboard_theremin-7d78b61605285d52) [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; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "21bbf7201844eccbaff8706fd54137d9285a519bdcf146b9a7b9a2b76ef0238c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "21bbf7201844eccbaff8706fd54137d9285a519bdcf146b9a7b9a2b76ef0238c", kill_on_drop: false }` [INFO] [stdout] 21bbf7201844eccbaff8706fd54137d9285a519bdcf146b9a7b9a2b76ef0238c