[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] checking aweinstock314/keyboard-theremin against master#f9515fdd5aa132e27d9b580a35b27f4b453251c1 for pr-125923
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faweinstock314%2Fkeyboard-theremin" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aweinstock314/keyboard-theremin on toolchain f9515fdd5aa132e27d9b580a35b27f4b453251c1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9515fdd5aa132e27d9b580a35b27f4b453251c1" "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-4-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9515fdd5aa132e27d9b580a35b27f4b453251c1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded x11-dl v2.15.0
[INFO] [stderr]   Downloaded wayland-window v0.7.0
[INFO] [stderr]   Downloaded shared_library v0.1.7
[INFO] [stderr]   Downloaded core-foundation v0.4.4
[INFO] [stderr]   Downloaded glutin v0.9.2
[INFO] [stderr]   Downloaded cc v1.0.1
[INFO] [stderr]   Downloaded rustc-demangle v0.1.5
[INFO] [stderr]   Downloaded winit v0.7.6
[INFO] [stderr]   Downloaded backtrace v0.3.3
[INFO] [stderr]   Downloaded fnv v1.0.5
[INFO] [stderr]   Downloaded backtrace-sys v0.1.15
[INFO] [stderr]   Downloaded gleam v0.4.8
[INFO] [stderr]   Downloaded khronos_api v1.0.1
[INFO] [stderr]   Downloaded gl_generator v0.5.5
[INFO] [stderr]   Downloaded core-foundation-sys v0.4.4
[INFO] [stderr]   Downloaded xml-rs v0.6.2
[INFO] [stderr]   Downloaded glium v0.17.1
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+f9515fdd5aa132e27d9b580a35b27f4b453251c1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d043ac7d6409eb3be17a271dd2ab9e671ee740c71eb3d4ff91736e7b67cf4b1
[INFO] running `Command { std: "docker" "start" "-a" "5d043ac7d6409eb3be17a271dd2ab9e671ee740c71eb3d4ff91736e7b67cf4b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d043ac7d6409eb3be17a271dd2ab9e671ee740c71eb3d4ff91736e7b67cf4b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d043ac7d6409eb3be17a271dd2ab9e671ee740c71eb3d4ff91736e7b67cf4b1", kill_on_drop: false }`
[INFO] [stdout] 5d043ac7d6409eb3be17a271dd2ab9e671ee740c71eb3d4ff91736e7b67cf4b1
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+f9515fdd5aa132e27d9b580a35b27f4b453251c1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 285535c8b9e3b4b7055bd85d03de79bc7f5470196b827e2e50c663c86fec8535
[INFO] running `Command { std: "docker" "start" "-a" "285535c8b9e3b4b7055bd85d03de79bc7f5470196b827e2e50c663c86fec8535", kill_on_drop: false }`
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]     Checking libc v0.2.32
[INFO] [stderr]    Compiling bitflags v1.0.0
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]     Checking lazy_static v0.2.9
[INFO] [stderr]    Compiling num-traits v0.1.40
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling khronos_api v1.0.1
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling cc v1.0.1
[INFO] [stderr]    Compiling xml-rs v0.6.2
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking rustc-demangle v0.1.5
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking fnv v1.0.5
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]     Checking smallvec v0.4.4
[INFO] [stderr]    Compiling phf v0.7.21
[INFO] [stderr]    Compiling x11-dl v2.15.0
[INFO] [stderr]    Compiling alsa-sys v0.1.1
[INFO] [stderr]     Checking rand v0.3.17
[INFO] [stderr]     Checking fs2 v0.2.5
[INFO] [stderr]     Checking shared_library v0.1.7
[INFO] [stderr]     Checking memmap v0.4.0
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.15
[INFO] [stderr]     Checking cpal v0.6.0
[INFO] [stderr]    Compiling wayland-scanner v0.9.10
[INFO] [stderr]    Compiling gl_generator v0.5.5
[INFO] [stderr]     Checking tempfile v2.2.0
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]    Compiling glutin v0.9.2
[INFO] [stderr]    Compiling glium v0.17.1
[INFO] [stderr]    Compiling wayland-client v0.9.10
[INFO] [stderr]    Compiling wayland-protocols v0.9.10
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]     Checking backtrace v0.3.3
[INFO] [stderr] error: could not compile `target_build_utils` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/f9515fdd5aa132e27d9b580a35b27f4b453251c1/bin/rustc --crate-name target_build_utils --edition=2015 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/target_build_utils-0.3.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="serde_json"' --check-cfg 'cfg(docsrs)' --check-cfg 'cfg(feature, values("default", "serde_json"))' -C metadata=51c38ab9dbbe317b -C extra-filename=-51c38ab9dbbe317b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern phf=/opt/rustwide/target/debug/deps/libphf-4a42bd69d611b0e7.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-b3bec8333bc62493.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "285535c8b9e3b4b7055bd85d03de79bc7f5470196b827e2e50c663c86fec8535", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "285535c8b9e3b4b7055bd85d03de79bc7f5470196b827e2e50c663c86fec8535", kill_on_drop: false }`
[INFO] [stdout] 285535c8b9e3b4b7055bd85d03de79bc7f5470196b827e2e50c663c86fec8535
[INFO] checking aweinstock314/keyboard-theremin against try#71235522a9cf955f6b7ff56c0bfb2651ecd0180b for pr-125923
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faweinstock314%2Fkeyboard-theremin" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aweinstock314/keyboard-theremin on toolchain 71235522a9cf955f6b7ff56c0bfb2651ecd0180b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+71235522a9cf955f6b7ff56c0bfb2651ecd0180b" "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-4-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+71235522a9cf955f6b7ff56c0bfb2651ecd0180b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+71235522a9cf955f6b7ff56c0bfb2651ecd0180b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48de6535500eaa1c8d20fb22c66f7663030813d60eba04b7259ba26d7c149fee
[INFO] running `Command { std: "docker" "start" "-a" "48de6535500eaa1c8d20fb22c66f7663030813d60eba04b7259ba26d7c149fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48de6535500eaa1c8d20fb22c66f7663030813d60eba04b7259ba26d7c149fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48de6535500eaa1c8d20fb22c66f7663030813d60eba04b7259ba26d7c149fee", kill_on_drop: false }`
[INFO] [stdout] 48de6535500eaa1c8d20fb22c66f7663030813d60eba04b7259ba26d7c149fee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+71235522a9cf955f6b7ff56c0bfb2651ecd0180b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75cf66169cb61aeece4b2d741f99058dcb351662d8a101019f1b5bf407fd496c
[INFO] running `Command { std: "docker" "start" "-a" "75cf66169cb61aeece4b2d741f99058dcb351662d8a101019f1b5bf407fd496c", kill_on_drop: false }`
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]     Checking libc v0.2.32
[INFO] [stderr]    Compiling bitflags v1.0.0
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]     Checking lazy_static v0.2.9
[INFO] [stderr]    Compiling num-traits v0.1.40
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling khronos_api v1.0.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]    Compiling cc v1.0.1
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]    Compiling xml-rs v0.6.2
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]     Checking rustc-demangle v0.1.5
[INFO] [stderr]     Checking smallvec v0.4.4
[INFO] [stderr]     Checking fnv v1.0.5
[INFO] [stderr]    Compiling phf v0.7.21
[INFO] [stderr]    Compiling x11-dl v2.15.0
[INFO] [stderr]    Compiling alsa-sys v0.1.1
[INFO] [stderr]    Compiling rand v0.3.17
[INFO] [stderr]     Checking fs2 v0.2.5
[INFO] [stderr]     Checking shared_library v0.1.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.15
[INFO] [stderr]     Checking memmap v0.4.0
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking cpal v0.6.0
[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]     Checking 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 serde_json v0.9.10
[INFO] [stderr]     Checking backtrace v0.3.3
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]     Checking dlib v0.3.1
[INFO] [stderr]     Checking wayland-sys v0.9.10
[INFO] [stderr]     Checking wayland-kbd v0.9.1
[INFO] [stderr]     Checking wayland-window v0.7.0
[INFO] [stderr]     Checking winit v0.7.6
[INFO] [stderr]     Checking 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<Note<Fn(f64) -> f64 + Send, Fn(f64, f64) -> f64 + Send>>) {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn ui(s: Sender<Note<dyn Fn(f64) -> f64 + Send, Fn(f64, f64) -> f64 + Send>>) {
[INFO] [stdout]    |                      +++
[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<Note<Fn(f64) -> f64 + Send, Fn(f64, f64) -> f64 + Send>>) {
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn ui(s: Sender<Note<Fn(f64) -> f64 + Send, dyn Fn(f64, f64) -> f64 + Send>>) {
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[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<Note<Fn(f64) -> f64 + Send, Fn(f64, f64) -> f64 + Send>>) {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn ui(s: Sender<Note<dyn Fn(f64) -> f64 + Send, Fn(f64, f64) -> f64 + Send>>) {
[INFO] [stdout]    |                      +++
[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<Note<Fn(f64) -> f64 + Send, Fn(f64, f64) -> f64 + Send>>) {
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn ui(s: Sender<Note<Fn(f64) -> f64 + Send, dyn Fn(f64, f64) -> f64 + Send>>) {
[INFO] [stdout]    |                                             +++
[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<Fn(f64, f64) -> f64 + Send + 'static> = match lfo {
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 80 |                     let lfo_f: Box<dyn Fn(f64, f64) -> f64 + Send + 'static> = match lfo {
[INFO] [stdout]    |                                    +++
[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<Fn(f64, f64) -> f64 + Send + 'static> = match lfo {
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 80 |                     let lfo_f: Box<dyn Fn(f64, f64) -> f64 + Send + 'static> = match lfo {
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `play_note` is never used
[INFO] [stdout]   --> src/main.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn play_note<F, G>(Note(n, amplitude, freq, wave, lfo): Note<F,G>) where
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `aplay_player` is never used
[INFO] [stdout]    --> src/main.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn aplay_player<F, G>(r: Receiver<Note<F, G>>) where
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `play_note` is never used
[INFO] [stdout]   --> src/main.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn play_note<F, G>(Note(n, amplitude, freq, wave, lfo): Note<F,G>) where
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `aplay_player` is never used
[INFO] [stdout]    --> src/main.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn aplay_player<F, G>(r: Receiver<Note<F, G>>) where
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.21s
[INFO] running `Command { std: "docker" "inspect" "75cf66169cb61aeece4b2d741f99058dcb351662d8a101019f1b5bf407fd496c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75cf66169cb61aeece4b2d741f99058dcb351662d8a101019f1b5bf407fd496c", kill_on_drop: false }`
[INFO] [stdout] 75cf66169cb61aeece4b2d741f99058dcb351662d8a101019f1b5bf407fd496c