[INFO] cloning repository https://github.com/KrongkaewPon/design-patterns
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KrongkaewPon/design-patterns" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKrongkaewPon%2Fdesign-patterns", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKrongkaewPon%2Fdesign-patterns'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ac3ec2e407955507de3fae69ce45cd7840886081
[INFO] checking KrongkaewPon/design-patterns against try#29194e8f603400afdb2f86c9418e9fccb1628ea0 for pr-135331-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKrongkaewPon%2Fdesign-patterns" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/KrongkaewPon/design-patterns
[INFO] finished tweaking git repo https://github.com/KrongkaewPon/design-patterns
[INFO] tweaked toml for git repo https://github.com/KrongkaewPon/design-patterns written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/KrongkaewPon/design-patterns on toolchain 29194e8f603400afdb2f86c9418e9fccb1628ea0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+29194e8f603400afdb2f86c9418e9fccb1628ea0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/KrongkaewPon/design-patterns 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" "+29194e8f603400afdb2f86c9418e9fccb1628ea0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+29194e8f603400afdb2f86c9418e9fccb1628ea0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f7cee0e32bf0731ee99f25332ba61c905f16801d3c7aa72cab351cc2de279e2
[INFO] running `Command { std: "docker" "start" "-a" "2f7cee0e32bf0731ee99f25332ba61c905f16801d3c7aa72cab351cc2de279e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f7cee0e32bf0731ee99f25332ba61c905f16801d3c7aa72cab351cc2de279e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f7cee0e32bf0731ee99f25332ba61c905f16801d3c7aa72cab351cc2de279e2", kill_on_drop: false }`
[INFO] [stdout] 2f7cee0e32bf0731ee99f25332ba61c905f16801d3c7aa72cab351cc2de279e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+29194e8f603400afdb2f86c9418e9fccb1628ea0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0f19f4aec669d7eeb0c8a6b2c09f020d0fa9b8f1bb41e4a7bd115d5675de48b
[INFO] running `Command { std: "docker" "start" "-a" "a0f19f4aec669d7eeb0c8a6b2c09f020d0fa9b8f1bb41e4a7bd115d5675de48b", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking design_patterns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `quack` should have an upper camel case name
[INFO] [stdout]   --> examples/ch1_new_5.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     quack(Quack),
[INFO] [stdout]    |     ^^^^^ help: convert the identifier to upper camel case: `Quack`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `squeak` should have an upper camel case name
[INFO] [stdout]   --> examples/ch1_new_5.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     squeak(Squeak),
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Squeak`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DuckTrait` is never used
[INFO] [stdout]  --> examples/ch1_new_5.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait DuckTrait {
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `squeak` is never constructed
[INFO] [stdout]   --> examples/ch1_new_5.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | enum QuackType {
[INFO] [stdout]    |      --------- variant in this enum
[INFO] [stdout] 25 |     quack(Quack),
[INFO] [stdout] 26 |     squeak(Squeak),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Flyable` is never used
[INFO] [stdout]   --> examples/ch1_new_5.rs:69:7
[INFO] [stdout]    |
[INFO] [stdout] 69 | trait Flyable {
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell::Ref`
[INFO] [stdout]  --> examples/ch2_2_rc.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{cell::Ref, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bpm`
[INFO] [stdout]   --> examples/ch12_beat.rs:83:27
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn set_bpm(&mut self, bpm: i32) {
[INFO] [stdout]    |                           ^^^ help: if this is intentional, prefix it with an underscore: `_bpm`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `off` is never used
[INFO] [stdout]  --> examples/ch12_beat.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait BeatModelTrait {
[INFO] [stdout]   |       -------------- method in this trait
[INFO] [stdout] 2 |     fn on(&mut self);
[INFO] [stdout] 3 |     fn off(&mut self);
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `stop` and `set_bpm` are never used
[INFO] [stdout]   --> examples/ch12_beat.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | trait ControllerTrait {
[INFO] [stdout]    |       --------------- methods in this trait
[INFO] [stdout] 57 |     fn start(&self, model: &mut BeatModel);
[INFO] [stdout] 58 |     fn stop(&self);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn set_bpm(&mut self, bpm: i32);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HouseBlend` is never constructed
[INFO] [stdout]   --> examples/ch3.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct HouseBlend;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `SOLD_OUT` should have an upper camel case name
[INFO] [stdout]  --> examples/ch10_1.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     SOLD_OUT,
[INFO] [stdout]   |     ^^^^^^^^ help: convert the identifier to upper camel case: `SoldOut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NO_QUARTER` should have an upper camel case name
[INFO] [stdout]  --> examples/ch10_1.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     NO_QUARTER,
[INFO] [stdout]   |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `NoQuarter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `HAS_QUARTER` should have an upper camel case name
[INFO] [stdout]  --> examples/ch10_1.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     HAS_QUARTER,
[INFO] [stdout]   |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `HasQuarter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `quack` should have an upper camel case name
[INFO] [stdout]   --> examples/ch1_new_4.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     quack(Quack),
[INFO] [stdout]    |     ^^^^^ help: convert the identifier to upper camel case: `Quack`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `squeak` should have an upper camel case name
[INFO] [stdout]   --> examples/ch1_new_4.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     squeak(Squeak),
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Squeak`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]   --> examples/ch2_1.rs:24:22
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn update(&self, temp: f64, humidity: f64, pressure: f64) {}
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `humidity`
[INFO] [stdout]   --> examples/ch2_1.rs:24:33
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn update(&self, temp: f64, humidity: f64, pressure: f64) {}
[INFO] [stdout]    |                                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_humidity`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pressure`
[INFO] [stdout]   --> examples/ch2_1.rs:24:48
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn update(&self, temp: f64, humidity: f64, pressure: f64) {}
[INFO] [stdout]    |                                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pressure`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]   --> examples/ch2_1.rs:34:22
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn update(&self, temp: f64, humidity: f64, pressure: f64) {}
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `humidity`
[INFO] [stdout]   --> examples/ch2_1.rs:34:33
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn update(&self, temp: f64, humidity: f64, pressure: f64) {}
[INFO] [stdout]    |                                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_humidity`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pressure`
[INFO] [stdout]   --> examples/ch2_1.rs:34:48
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn update(&self, temp: f64, humidity: f64, pressure: f64) {}
[INFO] [stdout]    |                                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pressure`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pressure`
[INFO] [stdout]   --> examples/ch2_2_rc.rs:99:59
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn update(&mut self, temperature: f64, humidity: f64, pressure: f64) {
[INFO] [stdout]    |                                                           ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pressure`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CurrentConditionsDisplay` is never constructed
[INFO] [stdout]   --> examples/ch2_1.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct CurrentConditionsDisplay {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `update` is never used
[INFO] [stdout]   --> examples/ch2_1.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl CurrentConditionsDisplay {
[INFO] [stdout]    | ----------------------------- method in this implementation
[INFO] [stdout] 24 |     fn update(&self, temp: f64, humidity: f64, pressure: f64) {}
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StatisticsDisplay` is never constructed
[INFO] [stdout]   --> examples/ch2_1.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct StatisticsDisplay {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `update` is never used
[INFO] [stdout]   --> examples/ch2_1.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl StatisticsDisplay {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] 34 |     fn update(&self, temp: f64, humidity: f64, pressure: f64) {}
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `humidity`
[INFO] [stdout]    --> examples/ch2_2_rc.rs:137:44
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn update(&mut self, temperature: f64, humidity: f64, pressure: f64) {
[INFO] [stdout]     |                                            ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_humidity`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `off` is never used
[INFO] [stdout]  --> examples/ch5_1.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | impl Light {
[INFO] [stdout]   | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 6 |     fn off(&self) {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `close` is never used
[INFO] [stdout]   --> examples/ch5_1.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl GarageDoor {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn close(&self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_conditions_display`
[INFO] [stdout]    --> examples/ch2_2_rc.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |     let current_conditions_display = CurrentConditionsDisplay::new(weather_data.clone());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_conditions_display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pressure`
[INFO] [stdout]    --> examples/ch2_3_weak.rs:103:59
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn update(&mut self, temperature: f64, humidity: f64, pressure: f64) {
[INFO] [stdout]     |                                                           ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pressure`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `weather_data` is never read
[INFO] [stdout]   --> examples/ch2_2_rc.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 68 | struct CurrentConditionsDisplay {
[INFO] [stdout]    |        ------------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 71 |     weather_data: Rc<RefCell<WeatherData>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DuckTrait` is never used
[INFO] [stdout]  --> examples/ch1_new_4.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait DuckTrait {
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `squeak` is never constructed
[INFO] [stdout]   --> examples/ch1_new_4.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | enum QuackType {
[INFO] [stdout]    |      --------- variant in this enum
[INFO] [stdout] 25 |     quack(Quack),
[INFO] [stdout] 26 |     squeak(Squeak),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `humidity`
[INFO] [stdout]    --> examples/ch2_3_weak.rs:144:44
[INFO] [stdout]     |
[INFO] [stdout] 144 |     fn update(&mut self, temperature: f64, humidity: f64, pressure: f64) {
[INFO] [stdout]     |                                            ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_humidity`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `static_display`
[INFO] [stdout]    --> examples/ch2_3_weak.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |     let static_display = StatisticsDisplay::new(weak.clone());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_static_display`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `weather_data` is never read
[INFO] [stdout]   --> examples/ch2_3_weak.rs:72:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | struct CurrentConditionsDisplay {
[INFO] [stdout]    |        ------------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 72 |     weather_data: Weak<RefCell<WeatherData>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `weather_data` is never read
[INFO] [stdout]    --> examples/ch2_3_weak.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 110 | struct StatisticsDisplay {
[INFO] [stdout]     |        ----------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 113 |     weather_data: Weak<RefCell<WeatherData>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SGCrawlerParameter` is never constructed
[INFO] [stdout]   --> examples/bow.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct SGCrawlerParameter {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `weather_data` is never read
[INFO] [stdout]    --> examples/ch2_2_rc.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 106 | struct StatisticsDisplay {
[INFO] [stdout]     |        ----------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 109 |     weather_data: Rc<RefCell<WeatherData>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stdout]  --> examples/ch6_2.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::borrow::BorrowMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> examples/ch6_2.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell::Ref`
[INFO] [stdout]  --> examples/ch6_2.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{cell::Ref, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `vegetarian` is never read
[INFO] [stdout]  --> examples/ch9_1.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct MenuItem {
[INFO] [stdout]   |        -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 7 |     vegetarian: bool,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `MenuItem` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_vegetarian` is never used
[INFO] [stdout]   --> examples/ch9_1.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl MenuItem {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn is_vegetarian(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_3.rs:23:30
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn insert_quarter(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_3.rs:26:29
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn eject_quarter(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_3.rs:29:26
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn turn_crank(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_3.rs:46:30
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn insert_quarter(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_3.rs:49:29
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn eject_quarter(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_3.rs:52:26
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn turn_crank(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_3.rs:55:24
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn dispense(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_3.rs:64:30
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn insert_quarter(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_3.rs:73:24
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn dispense(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_3.rs:85:29
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn eject_quarter(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_3.rs:88:26
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn turn_crank(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_3.rs:91:24
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn dispense(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `eject_quarter` is never used
[INFO] [stdout]   --> examples/ch10_3.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | trait State {
[INFO] [stdout]    |       ----- method in this trait
[INFO] [stdout] 13 |     fn insert_quarter(&self, gumball_machine: &mut GumballMachine);
[INFO] [stdout] 14 |     fn eject_quarter(&self, gumball_machine: &mut GumballMachine);
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `eject_quarter` is never used
[INFO] [stdout]    --> examples/ch10_3.rs:141:8
[INFO] [stdout]     |
[INFO] [stdout] 105 | impl GumballMachine {
[INFO] [stdout]     | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 141 |     fn eject_quarter(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> examples/ch10_4.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> examples/ch10_4.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Hardback` is never constructed
[INFO] [stdout]  --> examples/ch8.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     enum BookFormat {
[INFO] [stdout]   |          ---------- variant in this enum
[INFO] [stdout] 4 |         Paperback,
[INFO] [stdout] 5 |         Hardback,
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `format` is never read
[INFO] [stdout]   --> examples/ch8.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout]  9 |     struct Book {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 10 |         isbn: i32,
[INFO] [stdout] 11 |         format: BookFormat,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_4.rs:24:30
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn insert_quarter(&self, gumball_machine: &mut GumballMachine) -> Box<dyn State> {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_4.rs:27:29
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn eject_quarter(&self, gumball_machine: &mut GumballMachine) -> Box<dyn State> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_4.rs:30:26
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn turn_crank(&self, gumball_machine: &mut GumballMachine) -> Box<dyn State> {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_4.rs:47:30
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn insert_quarter(&self, gumball_machine: &mut GumballMachine) -> Box<dyn State> {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_4.rs:50:29
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn eject_quarter(&self, gumball_machine: &mut GumballMachine) -> Box<dyn State> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_4.rs:53:26
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn turn_crank(&self, gumball_machine: &mut GumballMachine) -> Box<dyn State> {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_4.rs:56:24
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn dispense(&self, gumball_machine: &mut GumballMachine) -> Box<dyn State> {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_4.rs:65:30
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn insert_quarter(&self, gumball_machine: &mut GumballMachine) -> Box<dyn State> {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_4.rs:68:29
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn eject_quarter(&self, gumball_machine: &mut GumballMachine) -> Box<dyn State> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_4.rs:71:26
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn turn_crank(&self, gumball_machine: &mut GumballMachine) -> Box<dyn State> {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_4.rs:74:24
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn dispense(&self, gumball_machine: &mut GumballMachine) -> Box<dyn State> {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_4.rs:82:30
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn insert_quarter(&self, gumball_machine: &mut GumballMachine) -> Box<dyn State> {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_4.rs:85:29
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn eject_quarter(&self, gumball_machine: &mut GumballMachine) -> Box<dyn State> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_4.rs:88:26
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn turn_crank(&self, gumball_machine: &mut GumballMachine) -> Box<dyn State> {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_4.rs:91:24
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn dispense(&self, gumball_machine: &mut GumballMachine) -> Box<dyn State> {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `eject_quarter` is never used
[INFO] [stdout]   --> examples/ch10_4.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | trait State: Debug {
[INFO] [stdout]    |       ----- method in this trait
[INFO] [stdout] 14 |     fn insert_quarter(&self, gumball_machine: &mut GumballMachine) -> Box<dyn State>;
[INFO] [stdout] 15 |     fn eject_quarter(&self, gumball_machine: &mut GumballMachine) -> Box<dyn State>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `eject_quarter` is never used
[INFO] [stdout]    --> examples/ch10_4.rs:128:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | impl GumballApplication {
[INFO] [stdout]     | ----------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 128 |     fn eject_quarter(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]    --> examples/ch10_4.rs:137:4
[INFO] [stdout]     |
[INFO] [stdout] 137 | fn execute(application: GumballApplication, button: &str) -> GumballApplication {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> examples/ch1_3.rs:125:23
[INFO] [stdout]     |
[INFO] [stdout] 125 |         fly_behavior: FlyWithWings,
[INFO] [stdout]     |                       ^^^^^^^^^^^^ expected `Box<dyn FlyBehavior>`, found `FlyWithWings`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Box<(dyn FlyBehavior + 'static)>`
[INFO] [stdout]                found struct `FlyWithWings`
[INFO] [stdout]     = note: for more on the distinction between the stack and the heap, read https://doc.rust-lang.org/book/ch15-01-box.html, https://doc.rust-lang.org/rust-by-example/std/box.html, and https://doc.rust-lang.org/std/boxed/index.html
[INFO] [stdout] help: store this in the heap by calling `Box::new`
[INFO] [stdout]     |
[INFO] [stdout] 125 |         fly_behavior: Box::new(FlyWithWings),
[INFO] [stdout]     |                       +++++++++            +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> examples/ch1_3.rs:126:25
[INFO] [stdout]     |
[INFO] [stdout] 126 |         quack_behavior: Quack,
[INFO] [stdout]     |                         ^^^^^ expected `Box<dyn QuackBehavior>`, found `Quack`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Box<(dyn QuackBehavior + 'static)>`
[INFO] [stdout]                found struct `Quack`
[INFO] [stdout]     = note: for more on the distinction between the stack and the heap, read https://doc.rust-lang.org/book/ch15-01-box.html, https://doc.rust-lang.org/rust-by-example/std/box.html, and https://doc.rust-lang.org/std/boxed/index.html
[INFO] [stdout] help: store this in the heap by calling `Box::new`
[INFO] [stdout]     |
[INFO] [stdout] 126 |         quack_behavior: Box::new(Quack),
[INFO] [stdout]     |                         +++++++++     +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `design_patterns` (example "ch1_3") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `GarageDoor` is never constructed
[INFO] [stdout]   --> examples/ch6_2.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct GarageDoor {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `up`, and `down` are never used
[INFO] [stdout]   --> examples/ch6_2.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl GarageDoor {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 29 |     fn new(name: String) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn up(&self) {
[INFO] [stdout]    |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn down(&self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Stereo` is never constructed
[INFO] [stdout]   --> examples/ch6_2.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | struct Stereo {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `on`, `off`, `set_cd`, and `set_volume` are never used
[INFO] [stdout]   --> examples/ch6_2.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | impl Stereo {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 46 |     fn new(name: String) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     fn on(&self) {
[INFO] [stdout]    |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn off(&self) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     fn set_cd(&self) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn set_volume(&mut self, volume: i32) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `speed` is never read
[INFO] [stdout]   --> examples/ch6_2.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 67 | struct CeilingFan {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] 68 |     speed: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CeilingFan` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GarageDoorUpCommand` is never constructed
[INFO] [stdout]    --> examples/ch6_2.rs:169:8
[INFO] [stdout]     |
[INFO] [stdout] 169 | struct GarageDoorUpCommand {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> examples/ch6_2.rs:174:8
[INFO] [stdout]     |
[INFO] [stdout] 173 | impl GarageDoorUpCommand {
[INFO] [stdout]     | ------------------------ associated function in this implementation
[INFO] [stdout] 174 |     fn new(garage_door: GarageDoor) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GarageDoorDownCommand` is never constructed
[INFO] [stdout]    --> examples/ch6_2.rs:189:8
[INFO] [stdout]     |
[INFO] [stdout] 189 | struct GarageDoorDownCommand {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> examples/ch6_2.rs:194:8
[INFO] [stdout]     |
[INFO] [stdout] 193 | impl GarageDoorDownCommand {
[INFO] [stdout]     | -------------------------- associated function in this implementation
[INFO] [stdout] 194 |     fn new(garage_door: GarageDoor) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StereoOnWithCDCommand` is never constructed
[INFO] [stdout]    --> examples/ch6_2.rs:209:8
[INFO] [stdout]     |
[INFO] [stdout] 209 | struct StereoOnWithCDCommand {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> examples/ch6_2.rs:214:8
[INFO] [stdout]     |
[INFO] [stdout] 213 | impl StereoOnWithCDCommand {
[INFO] [stdout]     | -------------------------- associated function in this implementation
[INFO] [stdout] 214 |     fn new(stereo: Stereo) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StereoOffCommand` is never constructed
[INFO] [stdout]    --> examples/ch6_2.rs:231:8
[INFO] [stdout]     |
[INFO] [stdout] 231 | struct StereoOffCommand {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> examples/ch6_2.rs:236:8
[INFO] [stdout]     |
[INFO] [stdout] 235 | impl StereoOffCommand {
[INFO] [stdout]     | --------------------- associated function in this implementation
[INFO] [stdout] 236 |     fn new(stereo: Stereo) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `static_display`
[INFO] [stdout]    --> examples/ch2_4_weak_pull.rs:189:9
[INFO] [stdout]     |
[INFO] [stdout] 189 |     let static_display = StatisticsDisplay::new(weak.clone());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_static_display`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NYStyleCheesePizza` is never constructed
[INFO] [stdout]   --> examples/ch4_2.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct NYStyleCheesePizza {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `create_dough`, `create_sauce`, and `create_cheese` are never used
[INFO] [stdout]   --> examples/ch4_2.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 84 | trait PizzaIngredientFactory {
[INFO] [stdout]    |       ---------------------- methods in this trait
[INFO] [stdout] 85 |     fn create_dough(&self) -> Box<dyn Dough>;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 86 |     fn create_sauce(&self) -> Box<dyn Sauce>;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 87 |     fn create_cheese(&self) -> Box<dyn Cheese>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Dough` is never used
[INFO] [stdout]   --> examples/ch4_2.rs:90:7
[INFO] [stdout]    |
[INFO] [stdout] 90 | trait Dough {}
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ThinCrustDough` is never constructed
[INFO] [stdout]   --> examples/ch4_2.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 | struct ThinCrustDough {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Sauce` is never used
[INFO] [stdout]   --> examples/ch4_2.rs:94:7
[INFO] [stdout]    |
[INFO] [stdout] 94 | trait Sauce {}
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MarinaraSauce` is never constructed
[INFO] [stdout]   --> examples/ch4_2.rs:95:8
[INFO] [stdout]    |
[INFO] [stdout] 95 | struct MarinaraSauce {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Cheese` is never used
[INFO] [stdout]   --> examples/ch4_2.rs:98:7
[INFO] [stdout]    |
[INFO] [stdout] 98 | trait Cheese {}
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ReggianoCheese` is never constructed
[INFO] [stdout]   --> examples/ch4_2.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 99 | struct ReggianoCheese {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ingredient_factory` is never read
[INFO] [stdout]    --> examples/ch4_2.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 115 | struct CheesePizza {
[INFO] [stdout]     |        ----------- field in this struct
[INFO] [stdout] 116 |     ingredient_factory: Box<dyn PizzaIngredientFactory>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PancakeHouseMenu` is never constructed
[INFO] [stdout]   --> examples/ch9_2_iter.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | struct PancakeHouseMenu {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_item`, and `get_menu_items` are never used
[INFO] [stdout]    --> examples/ch9_2_iter.rs:91:8
[INFO] [stdout]     |
[INFO] [stdout]  90 | impl PancakeHouseMenu {
[INFO] [stdout]     | --------------------- associated items in this implementation
[INFO] [stdout]  91 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |     fn add_item(&mut self, name: String, description: String, vegetarian: bool, price: f32) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     fn get_menu_items(&self) -> &[MenuItem] {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DinerMenu` is never constructed
[INFO] [stdout]    --> examples/ch9_2_iter.rs:128:8
[INFO] [stdout]     |
[INFO] [stdout] 128 | struct DinerMenu {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_item`, and `get_menu_items` are never used
[INFO] [stdout]    --> examples/ch9_2_iter.rs:133:8
[INFO] [stdout]     |
[INFO] [stdout] 132 | impl DinerMenu {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 133 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 172 |     fn add_item(&mut self, name: String, description: String, vegetarian: bool, price: f32) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 181 |     fn get_menu_items(&self) -> &[MenuItem] {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_menu_items` is never used
[INFO] [stdout]    --> examples/ch9_2_iter.rs:186:4
[INFO] [stdout]     |
[INFO] [stdout] 186 | fn print_menu_items(menu_items: &[MenuItem]) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Duck` is never used
[INFO] [stdout]  --> examples/ch12_duck.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | trait Duck {
[INFO] [stdout]   |       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Flyable` is never used
[INFO] [stdout]   --> examples/ch12_duck.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | trait Flyable {
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_2.rs:23:30
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn insert_quarter(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_2.rs:26:29
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn eject_quarter(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_2.rs:29:26
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn turn_crank(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_2.rs:46:30
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn insert_quarter(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_2.rs:49:29
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn eject_quarter(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_2.rs:52:26
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn turn_crank(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_2.rs:55:24
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn dispense(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_2.rs:64:30
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn insert_quarter(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_2.rs:73:24
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn dispense(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_2.rs:85:29
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn eject_quarter(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_2.rs:88:26
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn turn_crank(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gumball_machine`
[INFO] [stdout]   --> examples/ch10_2.rs:91:24
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn dispense(&self, gumball_machine: &mut GumballMachine) {
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_gumball_machine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `eject_quarter` is never used
[INFO] [stdout]   --> examples/ch10_2.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | trait State {
[INFO] [stdout]    |       ----- method in this trait
[INFO] [stdout] 13 |     fn insert_quarter(&self, gumball_machine: &mut GumballMachine);
[INFO] [stdout] 14 |     fn eject_quarter(&self, gumball_machine: &mut GumballMachine);
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `eject_quarter` is never used
[INFO] [stdout]    --> examples/ch10_2.rs:132:8
[INFO] [stdout]     |
[INFO] [stdout] 104 | impl GumballMachine {
[INFO] [stdout]     | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 132 |     fn eject_quarter(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a0f19f4aec669d7eeb0c8a6b2c09f020d0fa9b8f1bb41e4a7bd115d5675de48b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0f19f4aec669d7eeb0c8a6b2c09f020d0fa9b8f1bb41e4a7bd115d5675de48b", kill_on_drop: false }`
[INFO] [stdout] a0f19f4aec669d7eeb0c8a6b2c09f020d0fa9b8f1bb41e4a7bd115d5675de48b