[INFO] cloning repository https://github.com/Cynlic/strangers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Cynlic/strangers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCynlic%2Fstrangers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCynlic%2Fstrangers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9883bf572f68e50472df961a99ad3ce91d6174a4
[INFO] checking Cynlic/strangers against try#f77b5bc6c7c84df104f86b0dd01d9490e3923fa8 for pr-147834
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCynlic%2Fstrangers" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Cynlic/strangers
[INFO] finished tweaking git repo https://github.com/Cynlic/strangers
[INFO] tweaked toml for git repo https://github.com/Cynlic/strangers written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Cynlic/strangers on toolchain f77b5bc6c7c84df104f86b0dd01d9490e3923fa8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Cynlic/strangers 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" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c02c64150ba4bf29cc1000b48afd4a1f910746dcb39e1facc1a56832ecbd4557
[INFO] running `Command { std: "docker" "start" "-a" "c02c64150ba4bf29cc1000b48afd4a1f910746dcb39e1facc1a56832ecbd4557", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c02c64150ba4bf29cc1000b48afd4a1f910746dcb39e1facc1a56832ecbd4557", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c02c64150ba4bf29cc1000b48afd4a1f910746dcb39e1facc1a56832ecbd4557", kill_on_drop: false }`
[INFO] [stdout] c02c64150ba4bf29cc1000b48afd4a1f910746dcb39e1facc1a56832ecbd4557
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e62787609aab7ebd11e8ec50b301d5e4f4ac86279728cb26da7ff8f6d19d9ee4
[INFO] running `Command { std: "docker" "start" "-a" "e62787609aab7ebd11e8ec50b301d5e4f4ac86279728cb26da7ff8f6d19d9ee4", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking libc v0.2.31
[INFO] [stderr]     Checking gnuplot v0.0.22
[INFO] [stderr]     Checking rand v0.3.16
[INFO] [stderr]     Checking chaos-plot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0583]: file not found for module `notetree`
[INFO] [stdout]  --> src/main.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | mod notetree;
[INFO] [stdout]   | ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: to create the module `notetree`, create file "src/notetree.rs" or "src/notetree/mod.rs"
[INFO] [stdout]   = note: if there is a `mod notetree` elsewhere in the crate already, import it with `use crate::...` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lily::*`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use lily::*;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `notetree::*`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use notetree::*;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:326:20
[INFO] [stdout]     |
[INFO] [stdout] 326 | fn iterate_fn (f: &Fn(f64, f64) -> (f64,f64),
[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/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] 326 | fn iterate_fn (f: &dyn Fn(f64, f64) -> (f64,f64),
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chaos-plot` (bin "chaos-plot") due to 1 previous error; 16 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/lily.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 (_, _) => "wbh"
[INFO] [stdout]    |                 ^^^^^^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/lily.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 (&Gesture::Arco, &Range::High) => "wbh",
[INFO] [stdout]    |                 ------------------------------ matches some of the same values
[INFO] [stdout] 26 |                 (&Gesture::Arco, &Range::Middle) => "wbl",
[INFO] [stdout]    |                 -------------------------------- matches some of the same values
[INFO] [stdout] 27 |                 (&Gesture::Arco, &Range::Low) => "bd",
[INFO] [stdout]    |                 ----------------------------- matches some of the same values
[INFO] [stdout] 28 |                 (&Gesture::Pizzicato, &Range::High) => "hh",
[INFO] [stdout]    |                 ----------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 34 |                 (_, _) => "wbh"
[INFO] [stdout]    |                 ^^^^^^ ...and 5 other patterns collectively make this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `beat`
[INFO] [stdout]    --> src/lily.rs:121:41
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub fn new(pattern: u8, pulses: u8, beat: u8)->Phrase{
[INFO] [stdout]     |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_beat`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lily.rs:150:13
[INFO] [stdout]     |
[INFO] [stdout] 149 |             arco => Gesture::Arco,
[INFO] [stdout]     |             ---- matches any value
[INFO] [stdout] 150 |             pizz => Gesture::Pizzicato,
[INFO] [stdout]     |             ^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: there is a binding of the same name; if you meant to pattern match against the value of that binding, that is a feature of constants that is not available for `let` bindings
[INFO] [stdout]    --> src/lily.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let arco = g |0b00 << i;
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lily.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 149 |             arco => Gesture::Arco,
[INFO] [stdout]     |             ---- matches any value
[INFO] [stdout] 150 |             pizz => Gesture::Pizzicato,
[INFO] [stdout] 151 |             perc => Gesture::Percussion,
[INFO] [stdout]     |             ^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: there is a binding of the same name; if you meant to pattern match against the value of that binding, that is a feature of constants that is not available for `let` bindings
[INFO] [stdout]    --> src/lily.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let arco = g |0b00 << i;
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arco`
[INFO] [stdout]    --> src/lily.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let arco = g |0b00 << i;
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_arco`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pizz`
[INFO] [stdout]    --> src/lily.rs:145:9
[INFO] [stdout]     |
[INFO] [stdout] 145 |     let pizz = g |0b01 << i;
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_pizz`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `perc`
[INFO] [stdout]    --> src/lily.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |     let perc = g |0b11 << i;
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_perc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arco`
[INFO] [stdout]    --> src/lily.rs:149:13
[INFO] [stdout]     |
[INFO] [stdout] 149 |             arco => Gesture::Arco,
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_arco`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pizz`
[INFO] [stdout]    --> src/lily.rs:150:13
[INFO] [stdout]     |
[INFO] [stdout] 150 |             pizz => Gesture::Pizzicato,
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_pizz`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `perc`
[INFO] [stdout]    --> src/lily.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 151 |             perc => Gesture::Percussion,
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_perc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:259:9
[INFO] [stdout]     |
[INFO] [stdout] 259 |     let mut rng = rand::thread_rng();
[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: unused variable: `rng`
[INFO] [stdout]    --> src/main.rs:259:9
[INFO] [stdout]     |
[INFO] [stdout] 259 |     let mut rng = rand::thread_rng();
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:263:9
[INFO] [stdout]     |
[INFO] [stdout] 263 |     for i in 1..10 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0583`.
[INFO] [stdout] 
[INFO] [stdout] error[E0583]: file not found for module `notetree`
[INFO] [stdout]  --> src/main.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | mod notetree;
[INFO] [stdout]   | ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: to create the module `notetree`, create file "src/notetree.rs" or "src/notetree/mod.rs"
[INFO] [stdout]   = note: if there is a `mod notetree` elsewhere in the crate already, import it with `use crate::...` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lily::*`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use lily::*;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `notetree::*`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use notetree::*;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:326:20
[INFO] [stdout]     |
[INFO] [stdout] 326 | fn iterate_fn (f: &Fn(f64, f64) -> (f64,f64),
[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/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] 326 | fn iterate_fn (f: &dyn Fn(f64, f64) -> (f64,f64),
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/lily.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 (_, _) => "wbh"
[INFO] [stdout]    |                 ^^^^^^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/lily.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 (&Gesture::Arco, &Range::High) => "wbh",
[INFO] [stdout]    |                 ------------------------------ matches some of the same values
[INFO] [stdout] 26 |                 (&Gesture::Arco, &Range::Middle) => "wbl",
[INFO] [stdout]    |                 -------------------------------- matches some of the same values
[INFO] [stdout] 27 |                 (&Gesture::Arco, &Range::Low) => "bd",
[INFO] [stdout]    |                 ----------------------------- matches some of the same values
[INFO] [stdout] 28 |                 (&Gesture::Pizzicato, &Range::High) => "hh",
[INFO] [stdout]    |                 ----------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 34 |                 (_, _) => "wbh"
[INFO] [stdout]    |                 ^^^^^^ ...and 5 other patterns collectively make this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `beat`
[INFO] [stdout]    --> src/lily.rs:121:41
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub fn new(pattern: u8, pulses: u8, beat: u8)->Phrase{
[INFO] [stdout]     |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_beat`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lily.rs:150:13
[INFO] [stdout]     |
[INFO] [stdout] 149 |             arco => Gesture::Arco,
[INFO] [stdout]     |             ---- matches any value
[INFO] [stdout] 150 |             pizz => Gesture::Pizzicato,
[INFO] [stdout]     |             ^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: there is a binding of the same name; if you meant to pattern match against the value of that binding, that is a feature of constants that is not available for `let` bindings
[INFO] [stdout]    --> src/lily.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let arco = g |0b00 << i;
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lily.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 149 |             arco => Gesture::Arco,
[INFO] [stdout]     |             ---- matches any value
[INFO] [stdout] 150 |             pizz => Gesture::Pizzicato,
[INFO] [stdout] 151 |             perc => Gesture::Percussion,
[INFO] [stdout]     |             ^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: there is a binding of the same name; if you meant to pattern match against the value of that binding, that is a feature of constants that is not available for `let` bindings
[INFO] [stdout]    --> src/lily.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let arco = g |0b00 << i;
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arco`
[INFO] [stdout]    --> src/lily.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let arco = g |0b00 << i;
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_arco`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pizz`
[INFO] [stdout]    --> src/lily.rs:145:9
[INFO] [stdout]     |
[INFO] [stdout] 145 |     let pizz = g |0b01 << i;
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_pizz`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `perc`
[INFO] [stdout]    --> src/lily.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |     let perc = g |0b11 << i;
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_perc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arco`
[INFO] [stdout]    --> src/lily.rs:149:13
[INFO] [stdout]     |
[INFO] [stdout] 149 |             arco => Gesture::Arco,
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_arco`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pizz`
[INFO] [stdout]    --> src/lily.rs:150:13
[INFO] [stdout]     |
[INFO] [stdout] 150 |             pizz => Gesture::Pizzicato,
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_pizz`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `perc`
[INFO] [stdout]    --> src/lily.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 151 |             perc => Gesture::Percussion,
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_perc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:259:9
[INFO] [stdout]     |
[INFO] [stdout] 259 |     let mut rng = rand::thread_rng();
[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: unused variable: `rng`
[INFO] [stdout]    --> src/main.rs:259:9
[INFO] [stdout]     |
[INFO] [stdout] 259 |     let mut rng = rand::thread_rng();
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:263:9
[INFO] [stdout]     |
[INFO] [stdout] 263 |     for i in 1..10 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0583`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chaos-plot` (bin "chaos-plot" test) due to 1 previous error; 16 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "e62787609aab7ebd11e8ec50b301d5e4f4ac86279728cb26da7ff8f6d19d9ee4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e62787609aab7ebd11e8ec50b301d5e4f4ac86279728cb26da7ff8f6d19d9ee4", kill_on_drop: false }`
[INFO] [stdout] e62787609aab7ebd11e8ec50b301d5e4f4ac86279728cb26da7ff8f6d19d9ee4
