[INFO] fetching crate scaleless_music 0.0.8...
[INFO] checking scaleless_music-0.0.8 against master#39cb3386ddc6c71657418be28dbb3987eea4aa4b for pr-133536
[INFO] extracting crate scaleless_music 0.0.8 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate scaleless_music 0.0.8 on toolchain 39cb3386ddc6c71657418be28dbb3987eea4aa4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scaleless_music 0.0.8
[INFO] finished tweaking crates.io crate scaleless_music 0.0.8
[INFO] tweaked toml for crates.io crate scaleless_music 0.0.8 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 174 packages to latest compatible versions
[INFO] [stderr]       Adding conrod v0.46.2 (available: v0.62.1)
[INFO] [stderr]       Adding num v0.1.42 (available: v0.4.3)
[INFO] [stderr]       Adding piston v0.26.0 (available: v1.0.0)
[INFO] [stderr]       Adding piston_window v0.57.0 (available: v0.132.0)
[INFO] [stderr]       Adding portaudio v0.7.1 (available: v0.8.0)
[INFO] [stderr]       Adding rb v0.2.0 (available: v0.4.1)
[INFO] [stderr]       Adding sdl2 v0.25.0 (available: v0.37.0)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e451056d12a7f739022209ce3f259db9d5869a2ad6a32f1d4332ecef48d4b49
[INFO] running `Command { std: "docker" "start" "-a" "9e451056d12a7f739022209ce3f259db9d5869a2ad6a32f1d4332ecef48d4b49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e451056d12a7f739022209ce3f259db9d5869a2ad6a32f1d4332ecef48d4b49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e451056d12a7f739022209ce3f259db9d5869a2ad6a32f1d4332ecef48d4b49", kill_on_drop: false }`
[INFO] [stdout] 9e451056d12a7f739022209ce3f259db9d5869a2ad6a32f1d4332ecef48d4b49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c56ec7219873d1e2151630816de9d15d5ed273372dedc242325406f7a01c975d
[INFO] running `Command { std: "docker" "start" "-a" "c56ec7219873d1e2151630816de9d15d5ed273372dedc242325406f7a01c975d", kill_on_drop: false }`
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[INFO] [stderr]     Checking png v0.5.2
[INFO] [stderr]     Checking stb_truetype v0.2.8
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[INFO] [stderr]     Checking piston2d-graphics v0.19.0
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[INFO] [stderr]     Checking rusttype v0.2.4
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]    Compiling phf_generator v0.7.24
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[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking pistoncore-input v0.14.0
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]     Checking daggy v0.4.1
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]     Checking pistoncore-window v0.23.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.26.0
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking piston v0.26.0
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking scaleless_music v0.0.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `exceeding_bitshifts` has been renamed to `arithmetic_overflow`
[INFO] [stdout]   --> src/lib.rs:24:22
[INFO] [stdout]    |
[INFO] [stdout] 24 | #![forbid(bad_style, exceeding_bitshifts, mutable_transmutes, no_mangle_const_items,
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^ help: use the new name: `arithmetic_overflow`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `plugin_as_library` has been removed: plugins have been deprecated and retired
[INFO] [stdout]   --> src/lib.rs:27:57
[INFO] [stdout]    |
[INFO] [stdout] 27 |     non_shorthand_field_patterns, overflowing_literals, plugin_as_library,
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `private_no_mangle_fns` has been removed: no longer a warning, `#[no_mangle]` functions always exported
[INFO] [stdout]   --> src/lib.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     private_no_mangle_fns, private_no_mangle_statics, stable_features, unconditional_recursion,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `private_no_mangle_statics` has been removed: no longer a warning, `#[no_mangle]` statics always exported
[INFO] [stdout]   --> src/lib.rs:28:28
[INFO] [stdout]    |
[INFO] [stdout] 28 |     private_no_mangle_fns, private_no_mangle_statics, stable_features, unconditional_recursion,
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sound/progress.rs:176:21
[INFO] [stdout]     |
[INFO] [stdout] 176 |         let timer = try!(Timer::new(sample_rate));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:26:9
[INFO] [stdout]     |
[INFO] [stdout] 26  | #![deny(deprecated, improper_ctypes, missing_docs,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/sound/mod.rs:114:12
[INFO] [stdout]     |
[INFO] [stdout] 114 |         Ok((1.0 / sample_rate))
[INFO] [stdout]     |            ^                 ^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:30:42
[INFO] [stdout]     |
[INFO] [stdout] 30  |     unused_comparisons, unused_features, unused_parens, while_true)]
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 114 -         Ok((1.0 / sample_rate))
[INFO] [stdout] 114 +         Ok(1.0 / sample_rate)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/sound/amplitude.rs:489:29
[INFO] [stdout]     |
[INFO] [stdout] 489 |     amp_funct_array: Vec<Rc<AmplitudeJoinable>>,
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 489 |     amp_funct_array: Vec<Rc<dyn AmplitudeJoinable>>,
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/sound/amplitude_overtones.rs:308:24
[INFO] [stdout]     |
[INFO] [stdout] 308 |     amplitudes: Vec<Rc<AmplitudeOvertonesJoinable>>,
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 308 |     amplitudes: Vec<Rc<dyn AmplitudeOvertonesJoinable>>,
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sound/wave.rs:67:29
[INFO] [stdout]    |
[INFO] [stdout] 67 |     amplitude_overtones: Rc<AmplitudeOvertonesProvider>,
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 67 |     amplitude_overtones: Rc<dyn AmplitudeOvertonesProvider>,
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/sound/wave.rs:161:15
[INFO] [stdout]     |
[INFO] [stdout] 161 |     sound: Rc<SoundStructure>,
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 161 |     sound: Rc<dyn SoundStructure>,
[INFO] [stdout]     |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/sound/wave.rs:309:24
[INFO] [stdout]     |
[INFO] [stdout] 309 |     sound_fade_out: Rc<SoundStructure>,
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 309 |     sound_fade_out: Rc<dyn SoundStructure>,
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/sound/wave.rs:310:23
[INFO] [stdout]     |
[INFO] [stdout] 310 |     sound_fade_in: Rc<SoundStructure>,
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 310 |     sound_fade_in: Rc<dyn SoundStructure>,
[INFO] [stdout]     |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sound/note.rs:20:15
[INFO] [stdout]    |
[INFO] [stdout] 20 |     sound: Rc<SoundStructure>,
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |     sound: Rc<dyn SoundStructure>,
[INFO] [stdout]    |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/sound/errors.rs:111:32
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn cause(&self) -> Option<&error::Error> {
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn cause(&self) -> Option<&dyn error::Error> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/sound/amplitude.rs:507:41
[INFO] [stdout]     |
[INFO] [stdout] 507 |     pub fn add(&mut self, amplitude: Rc<AmplitudeJoinable>) {
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 507 |     pub fn add(&mut self, amplitude: Rc<dyn AmplitudeJoinable>) {
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sound/wave.rs:76:40
[INFO] [stdout]    |
[INFO] [stdout] 76 |                amplitude_overtones: Rc<AmplitudeOvertonesProvider>,
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 76 |                amplitude_overtones: Rc<dyn AmplitudeOvertonesProvider>,
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/sound/wave.rs:102:50
[INFO] [stdout]     |
[INFO] [stdout] 102 |                          amplitude_overtones: Rc<AmplitudeOvertonesProvider>)
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 102 |                          amplitude_overtones: Rc<dyn AmplitudeOvertonesProvider>)
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/sound/wave.rs:189:26
[INFO] [stdout]     |
[INFO] [stdout] 189 |                sound: Rc<SoundStructure>,
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 189 |                sound: Rc<dyn SoundStructure>,
[INFO] [stdout]     |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/sound/wave.rs:324:35
[INFO] [stdout]     |
[INFO] [stdout] 324 |                sound_fade_out: Rc<SoundStructure>,
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 324 |                sound_fade_out: Rc<dyn SoundStructure>,
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/sound/wave.rs:325:34
[INFO] [stdout]     |
[INFO] [stdout] 325 |                sound_fade_in: Rc<SoundStructure>)
[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 a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 325 |                sound_fade_in: Rc<dyn SoundStructure>)
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/sound/errors.rs:74:26
[INFO] [stdout]    |
[INFO] [stdout] 74 |         f.write_str(self.description())
[INFO] [stdout]    |                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stdout] error: variable does not need to be mutable
[INFO] [stdout]    --> src/sound/amplitude_overtones.rs:223:13
[INFO] [stdout]     |
[INFO] [stdout] 223 |         let mut amplitude_overtone = &mut amplitude[overtone];
[INFO] [stdout]     |             ----^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:29:33
[INFO] [stdout]     |
[INFO] [stdout] 29  |     unknown_lints, unsafe_code, unused, unused_allocation, unused_attributes,
[INFO] [stdout]     |                                 ^^^^^^
[INFO] [stdout]     = note: `#[deny(unused_mut)]` implied by `#[deny(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: fields `sample_time` and `note_value` are never read
[INFO] [stdout]   --> src/sound/frequency.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub struct Vibrato {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 79 |     sample_time: SampleCalc,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 80 |     /// The (tempo relative) speed with which the amplitude is varied.
[INFO] [stdout] 81 |     note_value: NoteValue,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Vibrato` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[deny(dead_code)]` implied by `#[deny(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field `sample_time` is never read
[INFO] [stdout]    --> src/sound/amplitude.rs:261:5
[INFO] [stdout]     |
[INFO] [stdout] 259 | pub struct AmplitudeDecayExp {
[INFO] [stdout]     |            ----------------- field in this struct
[INFO] [stdout] 260 |     timer: Timer,
[INFO] [stdout] 261 |     sample_time: SampleCalc,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AmplitudeDecayExp` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field `sample_time` is never read
[INFO] [stdout]    --> src/sound/amplitude_overtones.rs:157:5
[INFO] [stdout]     |
[INFO] [stdout] 155 | pub struct AmplitudeDecayExpOvertones {
[INFO] [stdout]     |            -------------------------- field in this struct
[INFO] [stdout] 156 |     timer: Timer,
[INFO] [stdout] 157 |     sample_time: SampleCalc,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AmplitudeDecayExpOvertones` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field `amplitude_index` is never read
[INFO] [stdout]    --> src/sound/amplitude_overtones.rs:309:5
[INFO] [stdout]     |
[INFO] [stdout] 306 | pub struct AmplitudeOvertonesSequence {
[INFO] [stdout]     |            -------------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 309 |     amplitude_index: Cell<usize>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AmplitudeOvertonesSequence` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field `overtone_max` is never read
[INFO] [stdout]   --> src/sound/wave.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub struct Timbre {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 69 |     overtone_max: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Timbre` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: multiple fields are never read
[INFO] [stdout]   --> src/sound/note.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct Note {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 8  |     /// The interval of the note's frequency relative to the input frequency buffer.
[INFO] [stdout] 9  |     interval: Interval,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     onset_time: SampleCalc,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 13 |     /// Time between onset and release. In ADSR it involves decay.
[INFO] [stdout] 14 |     sustain: NoteValue,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 15 |     /// Time between the onset and the next note's onset.
[INFO] [stdout] 16 |     duration: NoteValue,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 17 |     /// It is used for the syncronization of some effects (e.g. vibrato, tremolo).
[INFO] [stdout] 18 |     tempo: Tempo,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 19 |     /// Sound structure.
[INFO] [stdout] 20 |     sound: Rc<SoundStructure>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     frequency_buffer: RefCell<Vec<SampleCalc>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 24 |     wave_buffer: RefCell<Vec<SampleCalc>>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Note` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field `buffer_size` is never read
[INFO] [stdout]   --> src/sound/note.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct NoteSequence {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 38 |     buffer_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NoteSequence` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scaleless_music` (lib) due to 11 previous errors; 18 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c56ec7219873d1e2151630816de9d15d5ed273372dedc242325406f7a01c975d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c56ec7219873d1e2151630816de9d15d5ed273372dedc242325406f7a01c975d", kill_on_drop: false }`
[INFO] [stdout] c56ec7219873d1e2151630816de9d15d5ed273372dedc242325406f7a01c975d
