[INFO] cloning repository https://github.com/kdwk/playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kdwk/playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdwk%2Fplayground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdwk%2Fplayground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4428cd53304cf7f8c2f1d928580f5b641d24fb07
[INFO] checking kdwk/playground against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkdwk%2Fplayground" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kdwk/playground
[INFO] finished tweaking git repo https://github.com/kdwk/playground
[INFO] tweaked toml for git repo https://github.com/kdwk/playground written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kdwk/playground on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kdwk/playground 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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 02522a962b902e0bd04a8ef1c78d536312bf318feec9ca1b965cfc49c05debfd
[INFO] running `Command { std: "docker" "start" "-a" "02522a962b902e0bd04a8ef1c78d536312bf318feec9ca1b965cfc49c05debfd", kill_on_drop: false }`
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[INFO] [stdout] 02f066242f3caf3dfd759822d8f9d99eefa8d5025e58ee5f6ba778af92289211
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[INFO] [stdout] warning: unused imports: `RefCell` and `RefMut`
[INFO] [stdout]  --> react/src/counter.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::{RefCell, RefMut};
[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: `KeyEvent`
[INFO] [stdout]  --> react/src/counter.rs:3:40
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crossterm::event::{Event, KeyCode, KeyEvent};
[INFO] [stdout]   |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::log::log`
[INFO] [stdout]  --> react/src/counter.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::log::log;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `stateful::Stateful`
[INFO] [stdout]  --> react/src/counter.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     stateful::Stateful,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `widget`
[INFO] [stdout]  --> react/src/single_char.rs:3:49
[INFO] [stdout]   |
[INFO] [stdout] 3 |     widget::{DisplayList, Drawable, prelude::*, widget},
[INFO] [stdout]   |                                                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Ref` and `collections::VecDeque`
[INFO] [stdout]  --> react/src/stateful.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     cell::{Ref, RefCell, RefMut},
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 3 |     collections::VecDeque,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]  --> react/src/stateful.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::log`
[INFO] [stdout]  --> react/src/stateful.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use log::log;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `widget`
[INFO] [stdout]   --> react/src/stateful.rs:12:35
[INFO] [stdout]    |
[INFO] [stdout] 12 |     widget::{DisplayList, Widget, widget},
[INFO] [stdout]    |                                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `default::Default`
[INFO] [stdout]  --> react/src/widget.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     default::Default,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> react/src/state.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::any::Any;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> react/src/state.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> react/src/state.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> react/src/state.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> react/src/state.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `dynamic_char::DynamicChar`
[INFO] [stdout]   --> react/src/lib.rs:19:35
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use crate::{counter::Counter, dynamic_char::DynamicChar, widget::prelude::*};
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RefCell` and `RefMut`
[INFO] [stdout]  --> react/src/counter.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::{RefCell, RefMut};
[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: `KeyEvent`
[INFO] [stdout]  --> react/src/counter.rs:3:40
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crossterm::event::{Event, KeyCode, KeyEvent};
[INFO] [stdout]   |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::log::log`
[INFO] [stdout]  --> react/src/counter.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::log::log;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `stateful::Stateful`
[INFO] [stdout]  --> react/src/counter.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     stateful::Stateful,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `widget`
[INFO] [stdout]  --> react/src/single_char.rs:3:49
[INFO] [stdout]   |
[INFO] [stdout] 3 |     widget::{DisplayList, Drawable, prelude::*, widget},
[INFO] [stdout]   |                                                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Ref` and `collections::VecDeque`
[INFO] [stdout]  --> react/src/stateful.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     cell::{Ref, RefCell, RefMut},
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 3 |     collections::VecDeque,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]  --> react/src/stateful.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::log`
[INFO] [stdout]  --> react/src/stateful.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use log::log;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `widget`
[INFO] [stdout]   --> react/src/stateful.rs:12:35
[INFO] [stdout]    |
[INFO] [stdout] 12 |     widget::{DisplayList, Widget, widget},
[INFO] [stdout]    |                                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `default::Default`
[INFO] [stdout]  --> react/src/widget.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     default::Default,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> react/src/state.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::any::Any;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> react/src/state.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> react/src/state.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> react/src/state.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> react/src/state.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `dynamic_char::DynamicChar`
[INFO] [stdout]   --> react/src/lib.rs:19:35
[INFO] [stdout]    |
[INFO] [stdout] 19 |     use crate::{counter::Counter, dynamic_char::DynamicChar, widget::prelude::*};
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> react/src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub mod test {
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]   --> react/src/counter.rs:20:21
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn build(&self, context: &Context) -> Box<dyn Widget> {
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> react/src/widget.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |             let size = if let Ok((cols, rows)) = terminal::size() {
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `DisplayList` is more private than the item `widget::Widget::draw`
[INFO] [stdout]   --> react/src/widget.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn draw(&self, context: &Context) -> DisplayList {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `widget::Widget::draw` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `DisplayList` is only usable at visibility `pub(crate)`
[INFO] [stdout]   --> react/src/widget.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub(crate) struct DisplayList {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `DisplayList` is more private than the item `render`
[INFO] [stdout]   --> react/src/widget.rs:82:1
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn render(display_list: DisplayList, stdout: &mut Stdout) -> io::Result<()> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `render` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `DisplayList` is only usable at visibility `pub(crate)`
[INFO] [stdout]   --> react/src/widget.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub(crate) struct DisplayList {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DynamicChar` is never constructed
[INFO] [stdout]   --> react/src/dynamic_char.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct DynamicChar;
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Element` is never constructed
[INFO] [stdout]  --> react/src/element.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(crate) struct Element {
[INFO] [stdout]   |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Stateful` is never constructed
[INFO] [stdout]   --> react/src/stateful.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub struct Stateful<
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> react/src/stateful.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout]  96 | / impl<
[INFO] [stdout]  97 | |     T: 'static + Clone,
[INFO] [stdout]  98 | |     Mutation: FnOnce(RefMut<T>),
[INFO] [stdout]  99 | |     ChildBuilder: Fn(T, Box<dyn Fn(Mutation)>, &Context) -> Box<dyn Widget>,
[INFO] [stdout] 100 | | > Stateful<T, Mutation, ChildBuilder>
[INFO] [stdout]     | |_____________________________________- associated function in this implementation
[INFO] [stdout] 101 |   {
[INFO] [stdout] 102 |       pub fn new(init: T, builder: ChildBuilder) -> Self {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `with_default` is never used
[INFO] [stdout]    --> react/src/stateful.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 113 | / impl<
[INFO] [stdout] 114 | |     T: 'static + Clone + Default,
[INFO] [stdout] 115 | |     Mutation: FnOnce(RefMut<T>),
[INFO] [stdout] 116 | |     ChildBuilder: Fn(T, Box<dyn Fn(Mutation)>, &Context) -> Box<dyn Widget>,
[INFO] [stdout] 117 | | > Stateful<T, Mutation, ChildBuilder>
[INFO] [stdout]     | |_____________________________________- associated function in this implementation
[INFO] [stdout] 118 |   {
[INFO] [stdout] 119 |       pub fn with_default(builder: ChildBuilder) -> Self {
[INFO] [stdout]     |              ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]   --> react/src/counter.rs:20:21
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn build(&self, context: &Context) -> Box<dyn Widget> {
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> react/src/widget.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |             let size = if let Ok((cols, rows)) = terminal::size() {
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `DisplayList` is more private than the item `widget::Widget::draw`
[INFO] [stdout]   --> react/src/widget.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn draw(&self, context: &Context) -> DisplayList {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `widget::Widget::draw` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `DisplayList` is only usable at visibility `pub(crate)`
[INFO] [stdout]   --> react/src/widget.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub(crate) struct DisplayList {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `DisplayList` is more private than the item `render`
[INFO] [stdout]   --> react/src/widget.rs:82:1
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn render(display_list: DisplayList, stdout: &mut Stdout) -> io::Result<()> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `render` is reachable at visibility `pub`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `DisplayList` is only usable at visibility `pub(crate)`
[INFO] [stdout]   --> react/src/widget.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub(crate) struct DisplayList {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DynamicChar` is never constructed
[INFO] [stdout]   --> react/src/dynamic_char.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct DynamicChar;
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Element` is never constructed
[INFO] [stdout]  --> react/src/element.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(crate) struct Element {
[INFO] [stdout]   |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Stateful` is never constructed
[INFO] [stdout]   --> react/src/stateful.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub struct Stateful<
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> react/src/stateful.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout]  96 | / impl<
[INFO] [stdout]  97 | |     T: 'static + Clone,
[INFO] [stdout]  98 | |     Mutation: FnOnce(RefMut<T>),
[INFO] [stdout]  99 | |     ChildBuilder: Fn(T, Box<dyn Fn(Mutation)>, &Context) -> Box<dyn Widget>,
[INFO] [stdout] 100 | | > Stateful<T, Mutation, ChildBuilder>
[INFO] [stdout]     | |_____________________________________- associated function in this implementation
[INFO] [stdout] 101 |   {
[INFO] [stdout] 102 |       pub fn new(init: T, builder: ChildBuilder) -> Self {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `with_default` is never used
[INFO] [stdout]    --> react/src/stateful.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 113 | / impl<
[INFO] [stdout] 114 | |     T: 'static + Clone + Default,
[INFO] [stdout] 115 | |     Mutation: FnOnce(RefMut<T>),
[INFO] [stdout] 116 | |     ChildBuilder: Fn(T, Box<dyn Fn(Mutation)>, &Context) -> Box<dyn Widget>,
[INFO] [stdout] 117 | | > Stateful<T, Mutation, ChildBuilder>
[INFO] [stdout]     | |_____________________________________- associated function in this implementation
[INFO] [stdout] 118 |   {
[INFO] [stdout] 119 |       pub fn with_default(builder: ChildBuilder) -> Self {
[INFO] [stdout]     |              ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking h2 v0.4.12
[INFO] [stderr]     Checking tower-http v0.6.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]     Checking hyper v1.6.0
[INFO] [stderr]     Checking hyper-util v0.1.16
[INFO] [stderr]     Checking hyper-tls v0.6.0
[INFO] [stderr]     Checking axum v0.8.4
[INFO] [stderr]     Checking reqwest v0.12.23
[INFO] [stderr]     Checking stdext v0.1.0 (/opt/rustwide/workdir/stdext)
[INFO] [stdout] warning: unused imports: `Display` and `format`
[INFO] [stdout]  --> stdext/src/linked_list.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fmt::{Debug, Display, format};
[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 imports: `Duration` and `Instant`
[INFO] [stdout]   --> stdext/src/quicksort.rs:72:21
[INFO] [stdout]    |
[INFO] [stdout] 72 |     use std::time::{Duration, Instant};
[INFO] [stdout]    |                     ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `extend::ext`
[INFO] [stdout]   --> stdext/src/quicksort.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     use extend::ext;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::prelude::*`
[INFO] [stdout]   --> stdext/src/quicksort.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |     use super::prelude::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]    --> stdext/src/recipe.rs:298:22
[INFO] [stdout]     |
[INFO] [stdout] 298 |         fmt::{Debug, Display},
[INFO] [stdout]     |                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pipe`
[INFO] [stdout]    --> stdext/src/recipe.rs:304:38
[INFO] [stdout]     |
[INFO] [stdout] 304 |     use super::{Apply, Discard, Log, Pipe, Recipe, Runnable, identity};
[INFO] [stdout]     |                                      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Display` and `format`
[INFO] [stdout]  --> stdext/src/linked_list.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fmt::{Debug, Display, format};
[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 imports: `Duration` and `Instant`
[INFO] [stdout]   --> stdext/src/quicksort.rs:72:21
[INFO] [stdout]    |
[INFO] [stdout] 72 |     use std::time::{Duration, Instant};
[INFO] [stdout]    |                     ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `extend::ext`
[INFO] [stdout]   --> stdext/src/quicksort.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     use extend::ext;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::prelude::*`
[INFO] [stdout]   --> stdext/src/quicksort.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 76 |     use super::prelude::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]    --> stdext/src/recipe.rs:298:22
[INFO] [stdout]     |
[INFO] [stdout] 298 |         fmt::{Debug, Display},
[INFO] [stdout]     |                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pipe`
[INFO] [stdout]    --> stdext/src/recipe.rs:304:38
[INFO] [stdout]     |
[INFO] [stdout] 304 |     use super::{Apply, Discard, Log, Pipe, Recipe, Runnable, identity};
[INFO] [stdout]     |                                      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `this`
[INFO] [stdout]   --> stdext/src/linked_list.rs:31:51
[INFO] [stdout]    |
[INFO] [stdout] 31 |             Empty => replace_with_or_abort(self, |this| cons(elem, Empty)),
[INFO] [stdout]    |                                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_this`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `others`
[INFO] [stdout]    --> stdext/src/linked_list.rs:123:34
[INFO] [stdout]     |
[INFO] [stdout] 123 |             ListIter::Cons(elem, others) => {
[INFO] [stdout]     |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_others`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `others`
[INFO] [stdout]    --> stdext/src/linked_list.rs:145:37
[INFO] [stdout]     |
[INFO] [stdout] 145 |             ListRefIter::Cons(elem, others) => {
[INFO] [stdout]     |                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_others`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `others`
[INFO] [stdout]    --> stdext/src/linked_list.rs:167:40
[INFO] [stdout]     |
[INFO] [stdout] 167 |             ListRefMutIter::Cons(elem, others) => {
[INFO] [stdout]     |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_others`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> stdext/src/linked_list.rs:332:32
[INFO] [stdout]     |
[INFO] [stdout] 332 |         c.iter_mut().for_each(|mut s| *s += "1");
[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: `v`
[INFO] [stdout]   --> stdext/src/quicksort.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let v = vec![9, 3, -1, 0, 3, -56];
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `this`
[INFO] [stdout]   --> stdext/src/linked_list.rs:31:51
[INFO] [stdout]    |
[INFO] [stdout] 31 |             Empty => replace_with_or_abort(self, |this| cons(elem, Empty)),
[INFO] [stdout]    |                                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_this`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `others`
[INFO] [stdout]    --> stdext/src/linked_list.rs:123:34
[INFO] [stdout]     |
[INFO] [stdout] 123 |             ListIter::Cons(elem, others) => {
[INFO] [stdout]     |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_others`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> stdext/src/recipe.rs:379:13
[INFO] [stdout]     |
[INFO] [stdout] 379 |         let b = [3.0, 2.18, 3.14, 9.11]
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `others`
[INFO] [stdout]    --> stdext/src/linked_list.rs:145:37
[INFO] [stdout]     |
[INFO] [stdout] 145 |             ListRefIter::Cons(elem, others) => {
[INFO] [stdout]     |                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_others`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `others`
[INFO] [stdout]    --> stdext/src/linked_list.rs:167:40
[INFO] [stdout]     |
[INFO] [stdout] 167 |             ListRefMutIter::Cons(elem, others) => {
[INFO] [stdout]     |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_others`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `A` is never constructed
[INFO] [stdout]    --> stdext/src/linked_list.rs:306:12
[INFO] [stdout]     |
[INFO] [stdout] 306 |     struct A {
[INFO] [stdout]     |            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> stdext/src/linked_list.rs:311:12
[INFO] [stdout]     |
[INFO] [stdout] 310 |     impl A {
[INFO] [stdout]     |     ------ associated function in this implementation
[INFO] [stdout] 311 |         fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]    --> stdext/src/mixture.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 177 |     fn add<Num: Number>(x: Num, y: Num) -> <Num as Add>::Output {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]    --> stdext/src/mixture.rs:180:8
[INFO] [stdout]     |
[INFO] [stdout] 180 |     fn test1() {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Rect` is never constructed
[INFO] [stdout]    --> stdext/src/recipe.rs:364:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     enum Shape {
[INFO] [stdout]     |          ----- variant in this enum
[INFO] [stdout] 363 |         Circle(f32),
[INFO] [stdout] 364 |         Rect(f32, f32),
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Shape` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `square` is never used
[INFO] [stdout]    --> stdext/src/recipe.rs:367:12
[INFO] [stdout]     |
[INFO] [stdout] 366 |     impl Shape {
[INFO] [stdout]     |     ---------- associated function in this implementation
[INFO] [stdout] 367 |         fn square(side: f32) -> Self {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]   --> stdext/src/substr.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn test1() {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> stdext/src/linked_list.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn iter(&self) -> ListRefIter<T> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn iter(&self) -> ListRefIter<'_, T> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> stdext/src/linked_list.rs:77:21
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn iter_mut(&mut self) -> ListRefMutIter<T> {
[INFO] [stdout]    |                     ^^^^^^^^^     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn iter_mut(&mut self) -> ListRefMutIter<'_, T> {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> stdext/src/linked_list.rs:332:32
[INFO] [stdout]     |
[INFO] [stdout] 332 |         c.iter_mut().for_each(|mut s| *s += "1");
[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: `v`
[INFO] [stdout]   --> stdext/src/quicksort.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let v = vec![9, 3, -1, 0, 3, -56];
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> stdext/src/recipe.rs:379:13
[INFO] [stdout]     |
[INFO] [stdout] 379 |         let b = [3.0, 2.18, 3.14, 9.11]
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `A` is never constructed
[INFO] [stdout]    --> stdext/src/linked_list.rs:306:12
[INFO] [stdout]     |
[INFO] [stdout] 306 |     struct A {
[INFO] [stdout]     |            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> stdext/src/linked_list.rs:311:12
[INFO] [stdout]     |
[INFO] [stdout] 310 |     impl A {
[INFO] [stdout]     |     ------ associated function in this implementation
[INFO] [stdout] 311 |         fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]    --> stdext/src/mixture.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 177 |     fn add<Num: Number>(x: Num, y: Num) -> <Num as Add>::Output {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]    --> stdext/src/mixture.rs:180:8
[INFO] [stdout]     |
[INFO] [stdout] 180 |     fn test1() {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Rect` is never constructed
[INFO] [stdout]    --> stdext/src/recipe.rs:364:9
[INFO] [stdout]     |
[INFO] [stdout] 362 |     enum Shape {
[INFO] [stdout]     |          ----- variant in this enum
[INFO] [stdout] 363 |         Circle(f32),
[INFO] [stdout] 364 |         Rect(f32, f32),
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Shape` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `square` is never used
[INFO] [stdout]    --> stdext/src/recipe.rs:367:12
[INFO] [stdout]     |
[INFO] [stdout] 366 |     impl Shape {
[INFO] [stdout]     |     ---------- associated function in this implementation
[INFO] [stdout] 367 |         fn square(side: f32) -> Self {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]   --> stdext/src/substr.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn test1() {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> stdext/src/linked_list.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn iter(&self) -> ListRefIter<T> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn iter(&self) -> ListRefIter<'_, T> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> stdext/src/linked_list.rs:77:21
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn iter_mut(&mut self) -> ListRefMutIter<T> {
[INFO] [stdout]    |                     ^^^^^^^^^     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn iter_mut(&mut self) -> ListRefMutIter<'_, T> {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking puzzles v0.1.0 (/opt/rustwide/workdir/puzzles)
[INFO] [stderr]     Checking playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `stdext::prelude::*`
[INFO] [stdout]  --> puzzles/src/lc/q2.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use stdext::prelude::*;
[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: `stdext::prelude::*`
[INFO] [stdout]  --> puzzles/src/lc/q136.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use stdext::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `stdext::prelude::*`
[INFO] [stdout]  --> puzzles/src/lc/q509.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use stdext::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `ListNode` is more private than the item `q2::answer`
[INFO] [stdout]   --> puzzles/src/lc/q2.rs:75:1
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn answer(l1: Option<Box<ListNode>>, l2: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `q2::answer` is reachable at visibility `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `ListNode` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> puzzles/src/lc/q2.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout]  5 | struct ListNode {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solution` is never used
[INFO] [stdout]  --> puzzles/src/lc/q8.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn solution(s: String) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DIGITS` is never used
[INFO] [stdout]  --> puzzles/src/lc/q8.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const DIGITS: [char; 10] = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'];
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Sign` is never used
[INFO] [stdout]   --> puzzles/src/lc/q8.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout] 10 | enum Sign { Pos, Neg }
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `value` is never used
[INFO] [stdout]   --> puzzles/src/lc/q8.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Sign {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 13 |     fn value(&self) -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse` is never used
[INFO] [stdout]   --> puzzles/src/lc/q8.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn parse(s: String) -> (Sign, Vec<i32>) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `digit` is never used
[INFO] [stdout]   --> puzzles/src/lc/q8.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn digit(c: char) -> i32 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `number` is never used
[INFO] [stdout]   --> puzzles/src/lc/q8.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn number(sign: Sign, digits: Vec<i32>) -> i32 {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ListNode` is never constructed
[INFO] [stdout]  --> puzzles/src/lc/q2.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct ListNode {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `from_slice` are never used
[INFO] [stdout]   --> puzzles/src/lc/q2.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl ListNode {
[INFO] [stdout]    | ------------- associated functions in this implementation
[INFO] [stdout] 11 |     #[inline]
[INFO] [stdout] 12 |     fn new(val: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn from_slice(s: &[i32]) -> Option<Box<Self>> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `answer` is never used
[INFO] [stdout]   --> puzzles/src/lc/q2.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn answer(l1: Option<Box<ListNode>>, l2: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `no_dup` is never used
[INFO] [stdout]  --> puzzles/src/lc/q3.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn no_dup(s: &str) -> bool {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `answer1` is never used
[INFO] [stdout]   --> puzzles/src/lc/q3.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn answer1(s: String) -> i32 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `answer` is never used
[INFO] [stdout]   --> puzzles/src/lc/q3.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn answer(s: String) -> i32 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> puzzles/src/lc/q3.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn test() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `answer` is never used
[INFO] [stdout]  --> puzzles/src/lc/q136.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn answer(nums: Vec<i32>) -> i32 {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `answer` is never used
[INFO] [stdout]  --> puzzles/src/lc/q509.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn answer(n: i32) -> i32 {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_palindrome` is never used
[INFO] [stdout]  --> puzzles/src/lc/q5.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn is_palindrome(s: &String) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `answer` is never used
[INFO] [stdout]   --> puzzles/src/lc/q5.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn answer(s: String) -> String {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> puzzles/src/lc/q5.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn test() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `answer` is never used
[INFO] [stdout]  --> puzzles/src/lc/q6.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn answer(s: String, num_rows: i32) -> String {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> puzzles/src/lc/q6.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn test() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_palindrome` is never used
[INFO] [stdout]  --> puzzles/src/lc/q9.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn is_palindrome(s: &String) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `answer` is never used
[INFO] [stdout]   --> puzzles/src/lc/q9.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn answer(x: i32) -> bool {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `answer` is never used
[INFO] [stdout]  --> puzzles/src/lc/q10.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn answer(s: String, p: String) -> bool {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> puzzles/src/lc/q10.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn test() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `ListNode` is more private than the item `q2::answer`
[INFO] [stdout]   --> puzzles/src/lc/q2.rs:75:1
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn answer(l1: Option<Box<ListNode>>, l2: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function `q2::answer` is reachable at visibility `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `ListNode` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> puzzles/src/lc/q2.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout]  5 | struct ListNode {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `value` is never used
[INFO] [stdout]   --> puzzles/src/lc/q8.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Sign {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 13 |     fn value(&self) -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> puzzles/src/lc/q2.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl ListNode {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 11 |     #[inline]
[INFO] [stdout] 12 |     fn new(val: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `no_dup` is never used
[INFO] [stdout]  --> puzzles/src/lc/q3.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn no_dup(s: &str) -> bool {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `answer1` is never used
[INFO] [stdout]   --> puzzles/src/lc/q3.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn answer1(s: String) -> i32 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `answer` is never used
[INFO] [stdout]   --> puzzles/src/lc/q3.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn answer(s: String) -> i32 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> puzzles/src/lc/q3.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn test() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_palindrome` is never used
[INFO] [stdout]  --> puzzles/src/lc/q5.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn is_palindrome(s: &String) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `answer` is never used
[INFO] [stdout]   --> puzzles/src/lc/q5.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn answer(s: String) -> String {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> puzzles/src/lc/q5.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn test() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `answer` is never used
[INFO] [stdout]  --> puzzles/src/lc/q6.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn answer(s: String, num_rows: i32) -> String {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> puzzles/src/lc/q6.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn test() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_palindrome` is never used
[INFO] [stdout]  --> puzzles/src/lc/q9.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn is_palindrome(s: &String) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `answer` is never used
[INFO] [stdout]   --> puzzles/src/lc/q9.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn answer(x: i32) -> bool {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `answer` is never used
[INFO] [stdout]  --> puzzles/src/lc/q10.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn answer(s: String, p: String) -> bool {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> puzzles/src/lc/q10.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn test() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `b` is assigned to, but never used
[INFO] [stdout]   --> stdext/src/async_exp.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut b: &dyn Future<Output = i32>;
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_b` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> stdext/src/async_exp.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     for i in 0..10 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `b` is never read
[INFO] [stdout]   --> stdext/src/async_exp.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         b = &async { 5 }
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `a` is never read
[INFO] [stdout]    --> stdext/src/async_exp.rs:158:9
[INFO] [stdout]     |
[INFO] [stdout] 158 |         a[2] = c.await.unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_widget`
[INFO] [stdout]   --> stdext/src/compose.rs:11:28
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn needsRebuild(&self, old_widget: &Self) -> bool {
[INFO] [stdout]    |                            ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_widget`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]   --> stdext/src/compose.rs:25:20
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn build(self, context: ()) -> impl Compose {
[INFO] [stdout]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]   --> stdext/src/compose.rs:37:20
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn build(self, context: ()) -> impl Compose {
[INFO] [stdout]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]   --> stdext/src/compose.rs:46:20
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn build(self, context: ()) -> impl Compose {
[INFO] [stdout]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `b` is assigned to, but never used
[INFO] [stdout]   --> stdext/src/async_exp.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut b: &dyn Future<Output = i32>;
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_b` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> stdext/src/async_exp.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     for i in 0..10 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `b` is never read
[INFO] [stdout]   --> stdext/src/async_exp.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         b = &async { 5 }
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `a` is never read
[INFO] [stdout]    --> stdext/src/async_exp.rs:158:9
[INFO] [stdout]     |
[INFO] [stdout] 158 |         a[2] = c.await.unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_widget`
[INFO] [stdout]   --> stdext/src/compose.rs:11:28
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn needsRebuild(&self, old_widget: &Self) -> bool {
[INFO] [stdout]    |                            ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_widget`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]   --> stdext/src/compose.rs:25:20
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn build(self, context: ()) -> impl Compose {
[INFO] [stdout]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]   --> stdext/src/compose.rs:37:20
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn build(self, context: ()) -> impl Compose {
[INFO] [stdout]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]   --> stdext/src/compose.rs:46:20
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn build(self, context: ()) -> impl Compose {
[INFO] [stdout]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `this`
[INFO] [stdout]   --> stdext/src/linked_list.rs:31:51
[INFO] [stdout]    |
[INFO] [stdout] 31 |             Empty => replace_with_or_abort(self, |this| cons(elem, Empty)),
[INFO] [stdout]    |                                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_this`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `others`
[INFO] [stdout]    --> stdext/src/linked_list.rs:123:34
[INFO] [stdout]     |
[INFO] [stdout] 123 |             ListIter::Cons(elem, others) => {
[INFO] [stdout]     |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_others`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `others`
[INFO] [stdout]    --> stdext/src/linked_list.rs:145:37
[INFO] [stdout]     |
[INFO] [stdout] 145 |             ListRefIter::Cons(elem, others) => {
[INFO] [stdout]     |                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_others`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `others`
[INFO] [stdout]    --> stdext/src/linked_list.rs:167:40
[INFO] [stdout]     |
[INFO] [stdout] 167 |             ListRefMutIter::Cons(elem, others) => {
[INFO] [stdout]     |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_others`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> stdext/src/linked_list.rs:332:32
[INFO] [stdout]     |
[INFO] [stdout] 332 |         c.iter_mut().for_each(|mut s| *s += "1");
[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: `v`
[INFO] [stdout]   --> stdext/src/quicksort.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let v = vec![9, 3, -1, 0, 3, -56];
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `this`
[INFO] [stdout]   --> stdext/src/linked_list.rs:31:51
[INFO] [stdout]    |
[INFO] [stdout] 31 |             Empty => replace_with_or_abort(self, |this| cons(elem, Empty)),
[INFO] [stdout]    |                                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_this`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `others`
[INFO] [stdout]    --> stdext/src/linked_list.rs:123:34
[INFO] [stdout]     |
[INFO] [stdout] 123 |             ListIter::Cons(elem, others) => {
[INFO] [stdout]     |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_others`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `others`
[INFO] [stdout]    --> stdext/src/linked_list.rs:145:37
[INFO] [stdout]     |
[INFO] [stdout] 145 |             ListRefIter::Cons(elem, others) => {
[INFO] [stdout]     |                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_others`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `others`
[INFO] [stdout]    --> stdext/src/linked_list.rs:167:40
[INFO] [stdout]     |
[INFO] [stdout] 167 |             ListRefMutIter::Cons(elem, others) => {
[INFO] [stdout]     |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_others`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> stdext/src/linked_list.rs:332:32
[INFO] [stdout]     |
[INFO] [stdout] 332 |         c.iter_mut().for_each(|mut s| *s += "1");
[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: `b`
[INFO] [stdout]    --> stdext/src/recipe.rs:379:13
[INFO] [stdout]     |
[INFO] [stdout] 379 |         let b = [3.0, 2.18, 3.14, 9.11]
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> stdext/src/tree.rs:22:29
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn insert(&'a mut self, item: T) {
[INFO] [stdout]    |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> stdext/src/quicksort.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let v = vec![9, 3, -1, 0, 3, -56];
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> stdext/src/recipe.rs:379:13
[INFO] [stdout]     |
[INFO] [stdout] 379 |         let b = [3.0, 2.18, 3.14, 9.11]
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> stdext/src/tree.rs:22:29
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn insert(&'a mut self, item: T) {
[INFO] [stdout]    |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> stdext/src/main.rs:400:9
[INFO] [stdout]     |
[INFO] [stdout] 400 |     let a = mix![
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `apple1`
[INFO] [stdout]    --> stdext/src/main.rs:441:9
[INFO] [stdout]     |
[INFO] [stdout] 441 |     let apple1 = Apple {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_apple1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> stdext/src/main.rs:468:16
[INFO] [stdout]     |
[INFO] [stdout] 468 | fn test14<'it>(a: impl IntoIterator<Item = &'it dyn FileSystemEntity>) {
[INFO] [stdout]     |                ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> stdext/src/main.rs:469:9
[INFO] [stdout]     |
[INFO] [stdout] 469 |     let a = tokio::spawn(async {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> stdext/src/main.rs:500:9
[INFO] [stdout]     |
[INFO] [stdout] 500 |     let mut map2 = mixedmap! {
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `romania`
[INFO] [stdout]    --> stdext/src/main.rs:486:9
[INFO] [stdout]     |
[INFO] [stdout] 486 |     let romania = HashMap::from([
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_romania`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `map`
[INFO] [stdout]    --> stdext/src/main.rs:495:9
[INFO] [stdout]     |
[INFO] [stdout] 495 |     let map = map! {
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `map2`
[INFO] [stdout]    --> stdext/src/main.rs:500:9
[INFO] [stdout]     |
[INFO] [stdout] 500 |     let mut map2 = mixedmap! {
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_map2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s1`
[INFO] [stdout]    --> stdext/src/main.rs:506:9
[INFO] [stdout]     |
[INFO] [stdout] 506 |     let s1 = *s;
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_local` is never used
[INFO] [stdout]    --> stdext/src/main.rs:194:10
[INFO] [stdout]     |
[INFO] [stdout] 194 | async fn run_local<T>(future: impl Future<Output = T>) -> T {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `A` is never constructed
[INFO] [stdout]    --> stdext/src/main.rs:214:8
[INFO] [stdout]     |
[INFO] [stdout] 214 | struct A {
[INFO] [stdout]     |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `a1`, `b1`, and `c1` are never used
[INFO] [stdout]    --> stdext/src/main.rs:219:8
[INFO] [stdout]     |
[INFO] [stdout] 218 | impl A {
[INFO] [stdout]     | ------ methods in this implementation
[INFO] [stdout] 219 |     fn a1(&mut self) {
[INFO] [stdout]     |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 222 |     fn b1(&mut self) {
[INFO] [stdout]     |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 225 |     fn c1(&mut self) {
[INFO] [stdout]     |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `B` is never used
[INFO] [stdout]    --> stdext/src/main.rs:231:6
[INFO] [stdout]     |
[INFO] [stdout] 231 | enum B {
[INFO] [stdout]     |      ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]    --> stdext/src/main.rs:236:4
[INFO] [stdout]     |
[INFO] [stdout] 236 | fn test1() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1a` is never used
[INFO] [stdout]    --> stdext/src/main.rs:265:4
[INFO] [stdout]     |
[INFO] [stdout] 265 | fn test1a() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test2` is never used
[INFO] [stdout]    --> stdext/src/main.rs:281:4
[INFO] [stdout]     |
[INFO] [stdout] 281 | fn test2() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test3` is never used
[INFO] [stdout]    --> stdext/src/main.rs:288:4
[INFO] [stdout]     |
[INFO] [stdout] 288 | fn test3() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test4` is never used
[INFO] [stdout]    --> stdext/src/main.rs:308:4
[INFO] [stdout]     |
[INFO] [stdout] 308 | fn test4() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test5` is never used
[INFO] [stdout]    --> stdext/src/main.rs:329:4
[INFO] [stdout]     |
[INFO] [stdout] 329 | fn test5() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test6` is never used
[INFO] [stdout]    --> stdext/src/main.rs:348:4
[INFO] [stdout]     |
[INFO] [stdout] 348 | fn test6() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test7` is never used
[INFO] [stdout]    --> stdext/src/main.rs:361:4
[INFO] [stdout]     |
[INFO] [stdout] 361 | fn test7() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test8` is never used
[INFO] [stdout]    --> stdext/src/main.rs:392:4
[INFO] [stdout]     |
[INFO] [stdout] 392 | fn test8() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test9` is never used
[INFO] [stdout]    --> stdext/src/main.rs:399:4
[INFO] [stdout]     |
[INFO] [stdout] 399 | fn test9() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test10` is never used
[INFO] [stdout]    --> stdext/src/main.rs:418:10
[INFO] [stdout]     |
[INFO] [stdout] 418 | async fn test10() -> String {
[INFO] [stdout]     |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test11` is never used
[INFO] [stdout]    --> stdext/src/main.rs:433:4
[INFO] [stdout]     |
[INFO] [stdout] 433 | fn test11<const N: usize>(list: [&dyn std::fmt::Debug; N]) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test12` is never used
[INFO] [stdout]    --> stdext/src/main.rs:439:4
[INFO] [stdout]     |
[INFO] [stdout] 439 | fn test12() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test13` is never used
[INFO] [stdout]    --> stdext/src/main.rs:447:4
[INFO] [stdout]     |
[INFO] [stdout] 447 | fn test13() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test14` is never used
[INFO] [stdout]    --> stdext/src/main.rs:468:4
[INFO] [stdout]     |
[INFO] [stdout] 468 | fn test14<'it>(a: impl IntoIterator<Item = &'it dyn FileSystemEntity>) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test15` is never used
[INFO] [stdout]    --> stdext/src/main.rs:485:4
[INFO] [stdout]     |
[INFO] [stdout] 485 | fn test15() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Context` is never constructed
[INFO] [stdout]    --> stdext/src/main.rs:510:8
[INFO] [stdout]     |
[INFO] [stdout] 510 | struct Context {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gen_num` is never used
[INFO] [stdout]    --> stdext/src/main.rs:514:4
[INFO] [stdout]     |
[INFO] [stdout] 514 | fn gen_num() -> impl FnMut(&Context) -> i32 {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test16` is never used
[INFO] [stdout]    --> stdext/src/main.rs:525:4
[INFO] [stdout]     |
[INFO] [stdout] 525 | fn test16() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AssertionError` is never constructed
[INFO] [stdout]  --> stdext/src/assertion.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct AssertionError<Expected: Debug, Found: Debug>(Expected, Found);
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Assertable` is never used
[INFO] [stdout]   --> stdext/src/assertion.rs:19:11
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait Assertable {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]   --> stdext/src/assertion.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn test1() {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `wait` is never used
[INFO] [stdout]   --> stdext/src/async_exp.rs:12:14
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub async fn wait(secs: u64) {
[INFO] [stdout]    |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_future` is never used
[INFO] [stdout]   --> stdext/src/async_exp.rs:16:14
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub async fn some_future() -> impl Future {
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> stdext/src/async_exp.rs:20:14
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub async fn test() {
[INFO] [stdout]    |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `A` is never constructed
[INFO] [stdout]   --> stdext/src/async_exp.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     struct A {
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Data` is never constructed
[INFO] [stdout]   --> stdext/src/async_exp.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     struct Data {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]   --> stdext/src/async_exp.rs:57:18
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub async fn test1() {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test2` is never used
[INFO] [stdout]   --> stdext/src/async_exp.rs:66:18
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub async fn test2() {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test3` is never used
[INFO] [stdout]   --> stdext/src/async_exp.rs:74:18
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub async fn test3() {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test4` is never used
[INFO] [stdout]   --> stdext/src/async_exp.rs:88:18
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub async fn test4() {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test5` is never used
[INFO] [stdout]   --> stdext/src/async_exp.rs:96:18
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub async fn test5() -> Result<()> {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test6` is never used
[INFO] [stdout]    --> stdext/src/async_exp.rs:106:18
[INFO] [stdout]     |
[INFO] [stdout] 106 |     pub async fn test6() -> u32 {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test7` is never used
[INFO] [stdout]    --> stdext/src/async_exp.rs:121:18
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub async fn test7() -> usize {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test8` is never used
[INFO] [stdout]    --> stdext/src/async_exp.rs:136:18
[INFO] [stdout]     |
[INFO] [stdout] 136 |     pub async fn test8() {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test9` is never used
[INFO] [stdout]    --> stdext/src/async_exp.rs:149:18
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub async fn test9() {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Context` is never constructed
[INFO] [stdout]  --> stdext/src/compose.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Context {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Compose` is never used
[INFO] [stdout]  --> stdext/src/compose.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | trait Compose: PartialEq<Self> {
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Box` is never constructed
[INFO] [stdout]   --> stdext/src/compose.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Box<C>
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rect` is never constructed
[INFO] [stdout]   --> stdext/src/compose.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | struct Rect;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Custom` is never constructed
[INFO] [stdout]   --> stdext/src/compose.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | struct Custom;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Fruit` is never used
[INFO] [stdout]   --> stdext/src/fruits.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum Fruit {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `ripeness` and `is_ripe` are never used
[INFO] [stdout]   --> stdext/src/fruits.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Fruit {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] 27 |     pub fn ripeness(&self) -> Ripeness {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn is_ripe(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Ripeness` is never used
[INFO] [stdout]   --> stdext/src/fruits.rs:61:10
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub enum Ripeness {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dimensions` is never constructed
[INFO] [stdout]   --> stdext/src/fruits.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct Dimensions {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `ZERO`, `new`, and `new_const` are never used
[INFO] [stdout]   --> stdext/src/fruits.rs:75:11
[INFO] [stdout]    |
[INFO] [stdout] 74 | impl Dimensions {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 75 |     const ZERO: Self = Self::new_const(0., 0., 0.);
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 76 |     pub fn new(x: impl Into<f64>, y: impl Into<f64>, z: impl Into<f64>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     pub const fn new_const(x: f64, y: f64, z: f64) -> Self {
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Then` is never used
[INFO] [stdout]   --> stdext/src/go.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait Then<T> {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `wait_for` is never used
[INFO] [stdout]   --> stdext/src/go.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn wait_for<T>(future: impl Future<Output = T>) -> T {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `map1` is never used
[INFO] [stdout]  --> stdext/src/guard_map.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const fn map1() -> Map<'static> {
[INFO] [stdout]   |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Direction` is never used
[INFO] [stdout]   --> stdext/src/guard_map.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | enum Direction {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `turn_right` is never used
[INFO] [stdout]   --> stdext/src/guard_map.rs:25:14
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Direction {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 25 |     const fn turn_right(&self) -> Direction {
[INFO] [stdout]    |              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Location` is never constructed
[INFO] [stdout]   --> stdext/src/guard_map.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Location {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `origin`, `new`, and `move_in` are never used
[INFO] [stdout]   --> stdext/src/guard_map.rs:42:14
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl Location {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 42 |     const fn origin() -> Self {
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     const fn new(x: i32, y: i32) -> Self {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     const fn move_in(&self, direction: Direction) -> Location {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Guard` is never constructed
[INFO] [stdout]   --> stdext/src/guard_map.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | struct Guard {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Map` is never constructed
[INFO] [stdout]   --> stdext/src/guard_map.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct Map<'a> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_wall`, `in_bounds`, `guard_in_bounds`, `walk`, and `walk_till_end` are never used
[INFO] [stdout]    --> stdext/src/guard_map.rs:82:8
[INFO] [stdout]     |
[INFO] [stdout]  81 | impl<'a> Map<'a> {
[INFO] [stdout]     | ---------------- methods in this implementation
[INFO] [stdout]  82 |     fn is_wall(&self, location: &Location) -> bool {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  85 |     const fn in_bounds(&self, location: &Location) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  91 |     const fn guard_in_bounds(&self) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  94 |     fn walk(&mut self) -> Location {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     pub fn walk_till_end(&mut self) -> Location {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]    --> stdext/src/guard_map.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn test() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]   --> stdext/src/linked_list.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum List<T> {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> stdext/src/linked_list.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<T> List<T> {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] 16 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn push(&mut self, elem: T) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn push_front(&mut self, elem: T) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn back(&mut self) -> &mut Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn append(&mut self, other: Self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn contains(&self, x: &T) -> bool
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn starts_with(&self, needle: &Self) -> bool
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn iter(&self) -> ListRefIter<T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub fn iter_mut(&mut self) -> ListRefMutIter<T> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `join` is never used
[INFO] [stdout]   --> stdext/src/linked_list.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 85 | impl<T: Debug> List<T> {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] 86 |     pub fn join(&self, separator: impl AsRef<str>) -> String {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ListIter` is never used
[INFO] [stdout]    --> stdext/src/linked_list.rs:114:10
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub enum ListIter<T> {
[INFO] [stdout]     |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ListRefIter` is never used
[INFO] [stdout]    --> stdext/src/linked_list.rs:136:10
[INFO] [stdout]     |
[INFO] [stdout] 136 | pub enum ListRefIter<'a, T> {
[INFO] [stdout]     |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ListRefMutIter` is never used
[INFO] [stdout]    --> stdext/src/linked_list.rs:158:10
[INFO] [stdout]     |
[INFO] [stdout] 158 | pub enum ListRefMutIter<'a, T> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cons` is never used
[INFO] [stdout]    --> stdext/src/linked_list.rs:287:8
[INFO] [stdout]     |
[INFO] [stdout] 287 | pub fn cons<T>(head: T, tail: List<T>) -> List<T> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `A` is never constructed
[INFO] [stdout]    --> stdext/src/linked_list.rs:306:12
[INFO] [stdout]     |
[INFO] [stdout] 306 |     struct A {
[INFO] [stdout]     |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> stdext/src/linked_list.rs:311:12
[INFO] [stdout]     |
[INFO] [stdout] 310 |     impl A {
[INFO] [stdout]     |     ------ associated function in this implementation
[INFO] [stdout] 311 |         fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]    --> stdext/src/linked_list.rs:318:12
[INFO] [stdout]     |
[INFO] [stdout] 318 |     pub fn test1() {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test2` is never used
[INFO] [stdout]    --> stdext/src/linked_list.rs:322:12
[INFO] [stdout]     |
[INFO] [stdout] 322 |     pub fn test2() {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test3` is never used
[INFO] [stdout]    --> stdext/src/linked_list.rs:335:12
[INFO] [stdout]     |
[INFO] [stdout] 335 |     pub fn test3() {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Anything` is never used
[INFO] [stdout]   --> stdext/src/mixture.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub type Anything<'a> = Box<dyn Any + 'a>;
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Mixture` is never used
[INFO] [stdout]   --> stdext/src/mixture.rs:29:10
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub type Mixture<'a> = Vec<Anything<'a>>;
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `any` is never used
[INFO] [stdout]   --> stdext/src/mixture.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn any<'a, T: 'a>(thing: T) -> Anything<'a> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MixtureExt` is never used
[INFO] [stdout]   --> stdext/src/mixture.rs:35:11
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub trait MixtureExt {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AnythingExt` is never used
[INFO] [stdout]   --> stdext/src/mixture.rs:64:11
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub trait AnythingExt<'a> {
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Number` is never used
[INFO] [stdout]    --> stdext/src/mixture.rs:163:11
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub trait Number:
[INFO] [stdout]     |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]    --> stdext/src/mixture.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 177 |     fn add<Num: Number>(x: Num, y: Num) -> <Num as Add>::Output {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]    --> stdext/src/mixture.rs:180:8
[INFO] [stdout]     |
[INFO] [stdout] 180 |     fn test1() {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `factors` is never used
[INFO] [stdout]  --> stdext/src/numbers.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn factors(n: u32) -> Vec<u32> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prime` is never used
[INFO] [stdout]   --> stdext/src/numbers.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn prime(n: u32) -> bool {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `primes` is never used
[INFO] [stdout]   --> stdext/src/numbers.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn primes(list: impl IntoIterator<Item = u32>) -> impl Iterator<Item = u32> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Object` is never used
[INFO] [stdout]  --> stdext/src/object.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub trait Object: Clone + PartialEq + Hash {
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Enum` is never used
[INFO] [stdout]   --> stdext/src/object.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub trait Enum: Object {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Plus` is never used
[INFO] [stdout]  --> stdext/src/plus.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait Plus<T> {
[INFO] [stdout]   |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]   --> stdext/src/plus.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn test1() {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `quicksort` is never used
[INFO] [stdout]  --> stdext/src/quicksort.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn quicksort<T: PartialOrd>(mut list: Vec<T>) -> Vec<T> {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sorting_flap` is never used
[INFO] [stdout]   --> stdext/src/quicksort.rs:61:4
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn sorting_flap<T>(left_condition: impl Fn(&T) -> bool) -> impl Fn(T) -> (Option<T>, Option<T>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> stdext/src/quicksort.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn test() {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Step` is never constructed
[INFO] [stdout]   --> stdext/src/recipe.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Step<'a, Input, Output>(String, Arc<dyn Runnable<Input, Output> + 'a>);
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `action` is never used
[INFO] [stdout]   --> stdext/src/recipe.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl<'a, Input, Output> Step<'a, Input, Output> {
[INFO] [stdout]    | ----------------------------------------------- associated function in this implementation
[INFO] [stdout] 26 |     pub fn action<Closure>(alias: impl Display, closure: Closure) -> Self
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `identity` is never used
[INFO] [stdout]   --> stdext/src/recipe.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn identity<Input>() -> impl Fn(Input) -> Input {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Recipe` is never constructed
[INFO] [stdout]   --> stdext/src/recipe.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct Recipe<'a, Ingredients, Outcome> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> stdext/src/recipe.rs:60:12
[INFO] [stdout]     |
[INFO] [stdout]  59 | impl<'a, Ingredients, Outcome> Recipe<'a, Ingredients, Outcome> {
[INFO] [stdout]     | --------------------------------------------------------------- associated items in this implementation
[INFO] [stdout]  60 |     pub fn initially<Closure: Runnable<Ingredients, Outcome> + 'a>(
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  69 |     pub fn then<Closure: Runnable<Outcome, Outcome> + 'a>(
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  77 |     pub fn replace_first<Closure: Runnable<Outcome, Outcome> + 'a>(
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  94 |     pub fn replace<Closure: Runnable<Outcome, Outcome> + 'a + Clone>(
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     pub fn replace_initial<Closure: Runnable<Ingredients, Outcome> + 'a>(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 117 |     pub fn remove_first(&mut self, alias: impl Display) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 130 |     pub fn remove(&mut self, alias: impl Display) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 |     pub fn get(&self, alias: impl Display) -> Step<'a, Outcome, Outcome>
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Pipe` is never used
[INFO] [stdout]    --> stdext/src/recipe.rs:171:11
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub trait Pipe<Closure, Return>
[INFO] [stdout]     |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Apply` is never used
[INFO] [stdout]    --> stdext/src/recipe.rs:190:11
[INFO] [stdout]     |
[INFO] [stdout] 190 | pub trait Apply<Closure>
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `LogErr` is never used
[INFO] [stdout]    --> stdext/src/recipe.rs:225:11
[INFO] [stdout]     |
[INFO] [stdout] 225 | pub trait LogErr {
[INFO] [stdout]     |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Runnable` is never used
[INFO] [stdout]    --> stdext/src/recipe.rs:242:11
[INFO] [stdout]     |
[INFO] [stdout] 242 | pub trait Runnable<Arg, Return> {
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Pass` is never used
[INFO] [stdout]    --> stdext/src/recipe.rs:269:11
[INFO] [stdout]     |
[INFO] [stdout] 269 | pub trait Pass<Arg: Clone> {
[INFO] [stdout]     |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Discard` is never used
[INFO] [stdout]    --> stdext/src/recipe.rs:284:11
[INFO] [stdout]     |
[INFO] [stdout] 284 | pub trait Discard {
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BoxInternal` is never constructed
[INFO] [stdout]    --> stdext/src/recipe.rs:306:16
[INFO] [stdout]     |
[INFO] [stdout] 306 |     pub struct BoxInternal(i32, i32, f32);
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Boxy` is never constructed
[INFO] [stdout]    --> stdext/src/recipe.rs:307:16
[INFO] [stdout]     |
[INFO] [stdout] 307 |     pub struct Boxy<'a>(Recipe<'a, (), BoxInternal>);
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `width`, `height`, and `rotate` are never used
[INFO] [stdout]    --> stdext/src/recipe.rs:309:12
[INFO] [stdout]     |
[INFO] [stdout] 308 |     impl<'a> Boxy<'a> {
[INFO] [stdout]     |     ----------------- associated items in this implementation
[INFO] [stdout] 309 |         fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 317 |         fn width(&mut self, value: i32) -> &mut Self {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 324 |         fn height(&mut self, value: i32) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 331 |         fn rotate(&mut self, degrees: f32) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]    --> stdext/src/recipe.rs:345:12
[INFO] [stdout]     |
[INFO] [stdout] 345 |     pub fn test1() {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Shape` is never used
[INFO] [stdout]    --> stdext/src/recipe.rs:362:10
[INFO] [stdout]     |
[INFO] [stdout] 362 |     enum Shape {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `square` and `area` are never used
[INFO] [stdout]    --> stdext/src/recipe.rs:367:12
[INFO] [stdout]     |
[INFO] [stdout] 366 |     impl Shape {
[INFO] [stdout]     |     ---------- associated items in this implementation
[INFO] [stdout] 367 |         fn square(side: f32) -> Self {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 370 |         fn area(self) -> f32 {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test2` is never used
[INFO] [stdout]    --> stdext/src/recipe.rs:377:12
[INFO] [stdout]     |
[INFO] [stdout] 377 |     pub fn test2() {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SubStr` is never used
[INFO] [stdout]  --> stdext/src/substr.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait SubStr {
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]   --> stdext/src/substr.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn test1() {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `BinaryTree` is never used
[INFO] [stdout]  --> stdext/src/tree.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum BinaryTree<'a, T> {
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `contains` and `insert` are never used
[INFO] [stdout]   --> stdext/src/tree.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl<'a, T: PartialOrd> BinaryTree<'a, T> {
[INFO] [stdout]    | ----------------------------------------- methods in this implementation
[INFO] [stdout]  9 |     fn contains(&self, target: Option<&T>) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     fn insert(&'a mut self, item: T) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NoneError` is never constructed
[INFO] [stdout]  --> stdext/src/whoops.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct NoneError;
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Whoops` is never used
[INFO] [stdout]   --> stdext/src/whoops.rs:25:10
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub type Whoops = Result<(), Box<dyn Error>>;
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IntoWhoops` is never used
[INFO] [stdout]   --> stdext/src/whoops.rs:27:11
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub trait IntoWhoops {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `attempt` is never used
[INFO] [stdout]   --> stdext/src/whoops.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn attempt<Closure, Return>(closure: Closure) -> Whoops
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Catch` is never used
[INFO] [stdout]   --> stdext/src/whoops.rs:63:11
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub trait Catch {
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait method `needsRebuild` should have a snake case name
[INFO] [stdout]   --> stdext/src/compose.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn needsRebuild(&self, old_widget: &Self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^ help: convert the identifier to snake case: `needs_rebuild`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> stdext/src/linked_list.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn iter(&self) -> ListRefIter<T> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn iter(&self) -> ListRefIter<'_, T> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> stdext/src/linked_list.rs:77:21
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn iter_mut(&mut self) -> ListRefMutIter<T> {
[INFO] [stdout]    |                     ^^^^^^^^^     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn iter_mut(&mut self) -> ListRefMutIter<'_, T> {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> stdext/src/main.rs:400:9
[INFO] [stdout]     |
[INFO] [stdout] 400 |     let a = mix![
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `apple1`
[INFO] [stdout]    --> stdext/src/main.rs:441:9
[INFO] [stdout]     |
[INFO] [stdout] 441 |     let apple1 = Apple {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_apple1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> stdext/src/main.rs:468:16
[INFO] [stdout]     |
[INFO] [stdout] 468 | fn test14<'it>(a: impl IntoIterator<Item = &'it dyn FileSystemEntity>) {
[INFO] [stdout]     |                ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> stdext/src/main.rs:469:9
[INFO] [stdout]     |
[INFO] [stdout] 469 |     let a = tokio::spawn(async {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> stdext/src/main.rs:500:9
[INFO] [stdout]     |
[INFO] [stdout] 500 |     let mut map2 = mixedmap! {
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `romania`
[INFO] [stdout]    --> stdext/src/main.rs:486:9
[INFO] [stdout]     |
[INFO] [stdout] 486 |     let romania = HashMap::from([
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_romania`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `map`
[INFO] [stdout]    --> stdext/src/main.rs:495:9
[INFO] [stdout]     |
[INFO] [stdout] 495 |     let map = map! {
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `map2`
[INFO] [stdout]    --> stdext/src/main.rs:500:9
[INFO] [stdout]     |
[INFO] [stdout] 500 |     let mut map2 = mixedmap! {
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_map2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s1`
[INFO] [stdout]    --> stdext/src/main.rs:506:9
[INFO] [stdout]     |
[INFO] [stdout] 506 |     let s1 = *s;
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_local` is never used
[INFO] [stdout]    --> stdext/src/main.rs:194:10
[INFO] [stdout]     |
[INFO] [stdout] 194 | async fn run_local<T>(future: impl Future<Output = T>) -> T {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `A` is never constructed
[INFO] [stdout]    --> stdext/src/main.rs:214:8
[INFO] [stdout]     |
[INFO] [stdout] 214 | struct A {
[INFO] [stdout]     |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `a1`, `b1`, and `c1` are never used
[INFO] [stdout]    --> stdext/src/main.rs:219:8
[INFO] [stdout]     |
[INFO] [stdout] 218 | impl A {
[INFO] [stdout]     | ------ methods in this implementation
[INFO] [stdout] 219 |     fn a1(&mut self) {
[INFO] [stdout]     |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 222 |     fn b1(&mut self) {
[INFO] [stdout]     |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 225 |     fn c1(&mut self) {
[INFO] [stdout]     |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `B` is never used
[INFO] [stdout]    --> stdext/src/main.rs:231:6
[INFO] [stdout]     |
[INFO] [stdout] 231 | enum B {
[INFO] [stdout]     |      ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]    --> stdext/src/main.rs:236:4
[INFO] [stdout]     |
[INFO] [stdout] 236 | fn test1() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1a` is never used
[INFO] [stdout]    --> stdext/src/main.rs:265:4
[INFO] [stdout]     |
[INFO] [stdout] 265 | fn test1a() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test2` is never used
[INFO] [stdout]    --> stdext/src/main.rs:281:4
[INFO] [stdout]     |
[INFO] [stdout] 281 | fn test2() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test3` is never used
[INFO] [stdout]    --> stdext/src/main.rs:288:4
[INFO] [stdout]     |
[INFO] [stdout] 288 | fn test3() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test4` is never used
[INFO] [stdout]    --> stdext/src/main.rs:308:4
[INFO] [stdout]     |
[INFO] [stdout] 308 | fn test4() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test5` is never used
[INFO] [stdout]    --> stdext/src/main.rs:329:4
[INFO] [stdout]     |
[INFO] [stdout] 329 | fn test5() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test6` is never used
[INFO] [stdout]    --> stdext/src/main.rs:348:4
[INFO] [stdout]     |
[INFO] [stdout] 348 | fn test6() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test7` is never used
[INFO] [stdout]    --> stdext/src/main.rs:361:4
[INFO] [stdout]     |
[INFO] [stdout] 361 | fn test7() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test8` is never used
[INFO] [stdout]    --> stdext/src/main.rs:392:4
[INFO] [stdout]     |
[INFO] [stdout] 392 | fn test8() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test9` is never used
[INFO] [stdout]    --> stdext/src/main.rs:399:4
[INFO] [stdout]     |
[INFO] [stdout] 399 | fn test9() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test10` is never used
[INFO] [stdout]    --> stdext/src/main.rs:418:10
[INFO] [stdout]     |
[INFO] [stdout] 418 | async fn test10() -> String {
[INFO] [stdout]     |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test11` is never used
[INFO] [stdout]    --> stdext/src/main.rs:433:4
[INFO] [stdout]     |
[INFO] [stdout] 433 | fn test11<const N: usize>(list: [&dyn std::fmt::Debug; N]) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test12` is never used
[INFO] [stdout]    --> stdext/src/main.rs:439:4
[INFO] [stdout]     |
[INFO] [stdout] 439 | fn test12() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test13` is never used
[INFO] [stdout]    --> stdext/src/main.rs:447:4
[INFO] [stdout]     |
[INFO] [stdout] 447 | fn test13() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test14` is never used
[INFO] [stdout]    --> stdext/src/main.rs:468:4
[INFO] [stdout]     |
[INFO] [stdout] 468 | fn test14<'it>(a: impl IntoIterator<Item = &'it dyn FileSystemEntity>) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test15` is never used
[INFO] [stdout]    --> stdext/src/main.rs:485:4
[INFO] [stdout]     |
[INFO] [stdout] 485 | fn test15() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Context` is never constructed
[INFO] [stdout]    --> stdext/src/main.rs:510:8
[INFO] [stdout]     |
[INFO] [stdout] 510 | struct Context {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gen_num` is never used
[INFO] [stdout]    --> stdext/src/main.rs:514:4
[INFO] [stdout]     |
[INFO] [stdout] 514 | fn gen_num() -> impl FnMut(&Context) -> i32 {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test16` is never used
[INFO] [stdout]    --> stdext/src/main.rs:525:4
[INFO] [stdout]     |
[INFO] [stdout] 525 | fn test16() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AssertionError` is never constructed
[INFO] [stdout]  --> stdext/src/assertion.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct AssertionError<Expected: Debug, Found: Debug>(Expected, Found);
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Assertable` is never used
[INFO] [stdout]   --> stdext/src/assertion.rs:19:11
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub trait Assertable {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]   --> stdext/src/assertion.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn test1() {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `wait` is never used
[INFO] [stdout]   --> stdext/src/async_exp.rs:12:14
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub async fn wait(secs: u64) {
[INFO] [stdout]    |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_future` is never used
[INFO] [stdout]   --> stdext/src/async_exp.rs:16:14
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub async fn some_future() -> impl Future {
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> stdext/src/async_exp.rs:20:14
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub async fn test() {
[INFO] [stdout]    |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `A` is never constructed
[INFO] [stdout]   --> stdext/src/async_exp.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     struct A {
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Data` is never constructed
[INFO] [stdout]   --> stdext/src/async_exp.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     struct Data {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]   --> stdext/src/async_exp.rs:57:18
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub async fn test1() {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test2` is never used
[INFO] [stdout]   --> stdext/src/async_exp.rs:66:18
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub async fn test2() {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test3` is never used
[INFO] [stdout]   --> stdext/src/async_exp.rs:74:18
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub async fn test3() {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test4` is never used
[INFO] [stdout]   --> stdext/src/async_exp.rs:88:18
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub async fn test4() {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test5` is never used
[INFO] [stdout]   --> stdext/src/async_exp.rs:96:18
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub async fn test5() -> Result<()> {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test6` is never used
[INFO] [stdout]    --> stdext/src/async_exp.rs:106:18
[INFO] [stdout]     |
[INFO] [stdout] 106 |     pub async fn test6() -> u32 {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test7` is never used
[INFO] [stdout]    --> stdext/src/async_exp.rs:121:18
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub async fn test7() -> usize {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test8` is never used
[INFO] [stdout]    --> stdext/src/async_exp.rs:136:18
[INFO] [stdout]     |
[INFO] [stdout] 136 |     pub async fn test8() {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test9` is never used
[INFO] [stdout]    --> stdext/src/async_exp.rs:149:18
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub async fn test9() {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Context` is never constructed
[INFO] [stdout]  --> stdext/src/compose.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Context {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Compose` is never used
[INFO] [stdout]  --> stdext/src/compose.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | trait Compose: PartialEq<Self> {
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Box` is never constructed
[INFO] [stdout]   --> stdext/src/compose.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Box<C>
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rect` is never constructed
[INFO] [stdout]   --> stdext/src/compose.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | struct Rect;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Custom` is never constructed
[INFO] [stdout]   --> stdext/src/compose.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | struct Custom;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Fruit` is never used
[INFO] [stdout]   --> stdext/src/fruits.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum Fruit {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `ripeness` and `is_ripe` are never used
[INFO] [stdout]   --> stdext/src/fruits.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Fruit {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] 27 |     pub fn ripeness(&self) -> Ripeness {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     pub fn is_ripe(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Ripeness` is never used
[INFO] [stdout]   --> stdext/src/fruits.rs:61:10
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub enum Ripeness {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dimensions` is never constructed
[INFO] [stdout]   --> stdext/src/fruits.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct Dimensions {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `ZERO`, `new`, and `new_const` are never used
[INFO] [stdout]   --> stdext/src/fruits.rs:75:11
[INFO] [stdout]    |
[INFO] [stdout] 74 | impl Dimensions {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 75 |     const ZERO: Self = Self::new_const(0., 0., 0.);
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 76 |     pub fn new(x: impl Into<f64>, y: impl Into<f64>, z: impl Into<f64>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     pub const fn new_const(x: f64, y: f64, z: f64) -> Self {
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Then` is never used
[INFO] [stdout]   --> stdext/src/go.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait Then<T> {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `wait_for` is never used
[INFO] [stdout]   --> stdext/src/go.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn wait_for<T>(future: impl Future<Output = T>) -> T {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `map1` is never used
[INFO] [stdout]  --> stdext/src/guard_map.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const fn map1() -> Map<'static> {
[INFO] [stdout]   |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Direction` is never used
[INFO] [stdout]   --> stdext/src/guard_map.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | enum Direction {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `turn_right` is never used
[INFO] [stdout]   --> stdext/src/guard_map.rs:25:14
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Direction {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 25 |     const fn turn_right(&self) -> Direction {
[INFO] [stdout]    |              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Location` is never constructed
[INFO] [stdout]   --> stdext/src/guard_map.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Location {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `origin`, `new`, and `move_in` are never used
[INFO] [stdout]   --> stdext/src/guard_map.rs:42:14
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl Location {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 42 |     const fn origin() -> Self {
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     const fn new(x: i32, y: i32) -> Self {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     const fn move_in(&self, direction: Direction) -> Location {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Guard` is never constructed
[INFO] [stdout]   --> stdext/src/guard_map.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | struct Guard {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Map` is never constructed
[INFO] [stdout]   --> stdext/src/guard_map.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct Map<'a> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_wall`, `in_bounds`, `guard_in_bounds`, `walk`, and `walk_till_end` are never used
[INFO] [stdout]    --> stdext/src/guard_map.rs:82:8
[INFO] [stdout]     |
[INFO] [stdout]  81 | impl<'a> Map<'a> {
[INFO] [stdout]     | ---------------- methods in this implementation
[INFO] [stdout]  82 |     fn is_wall(&self, location: &Location) -> bool {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  85 |     const fn in_bounds(&self, location: &Location) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  91 |     const fn guard_in_bounds(&self) -> bool {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  94 |     fn walk(&mut self) -> Location {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     pub fn walk_till_end(&mut self) -> Location {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]    --> stdext/src/guard_map.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn test() {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]   --> stdext/src/linked_list.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum List<T> {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> stdext/src/linked_list.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<T> List<T> {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] 16 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn push(&mut self, elem: T) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn push_front(&mut self, elem: T) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn back(&mut self) -> &mut Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn append(&mut self, other: Self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn contains(&self, x: &T) -> bool
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn starts_with(&self, needle: &Self) -> bool
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn iter(&self) -> ListRefIter<T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub fn iter_mut(&mut self) -> ListRefMutIter<T> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `join` is never used
[INFO] [stdout]   --> stdext/src/linked_list.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 85 | impl<T: Debug> List<T> {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] 86 |     pub fn join(&self, separator: impl AsRef<str>) -> String {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ListIter` is never used
[INFO] [stdout]    --> stdext/src/linked_list.rs:114:10
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub enum ListIter<T> {
[INFO] [stdout]     |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ListRefIter` is never used
[INFO] [stdout]    --> stdext/src/linked_list.rs:136:10
[INFO] [stdout]     |
[INFO] [stdout] 136 | pub enum ListRefIter<'a, T> {
[INFO] [stdout]     |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ListRefMutIter` is never used
[INFO] [stdout]    --> stdext/src/linked_list.rs:158:10
[INFO] [stdout]     |
[INFO] [stdout] 158 | pub enum ListRefMutIter<'a, T> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cons` is never used
[INFO] [stdout]    --> stdext/src/linked_list.rs:287:8
[INFO] [stdout]     |
[INFO] [stdout] 287 | pub fn cons<T>(head: T, tail: List<T>) -> List<T> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `A` is never constructed
[INFO] [stdout]    --> stdext/src/linked_list.rs:306:12
[INFO] [stdout]     |
[INFO] [stdout] 306 |     struct A {
[INFO] [stdout]     |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> stdext/src/linked_list.rs:311:12
[INFO] [stdout]     |
[INFO] [stdout] 310 |     impl A {
[INFO] [stdout]     |     ------ associated function in this implementation
[INFO] [stdout] 311 |         fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]    --> stdext/src/linked_list.rs:318:12
[INFO] [stdout]     |
[INFO] [stdout] 318 |     pub fn test1() {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test2` is never used
[INFO] [stdout]    --> stdext/src/linked_list.rs:322:12
[INFO] [stdout]     |
[INFO] [stdout] 322 |     pub fn test2() {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test3` is never used
[INFO] [stdout]    --> stdext/src/linked_list.rs:335:12
[INFO] [stdout]     |
[INFO] [stdout] 335 |     pub fn test3() {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Anything` is never used
[INFO] [stdout]   --> stdext/src/mixture.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub type Anything<'a> = Box<dyn Any + 'a>;
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Mixture` is never used
[INFO] [stdout]   --> stdext/src/mixture.rs:29:10
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub type Mixture<'a> = Vec<Anything<'a>>;
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `any` is never used
[INFO] [stdout]   --> stdext/src/mixture.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn any<'a, T: 'a>(thing: T) -> Anything<'a> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MixtureExt` is never used
[INFO] [stdout]   --> stdext/src/mixture.rs:35:11
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub trait MixtureExt {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AnythingExt` is never used
[INFO] [stdout]   --> stdext/src/mixture.rs:64:11
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub trait AnythingExt<'a> {
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Number` is never used
[INFO] [stdout]    --> stdext/src/mixture.rs:163:11
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub trait Number:
[INFO] [stdout]     |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]    --> stdext/src/mixture.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 177 |     fn add<Num: Number>(x: Num, y: Num) -> <Num as Add>::Output {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]    --> stdext/src/mixture.rs:180:8
[INFO] [stdout]     |
[INFO] [stdout] 180 |     fn test1() {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `factors` is never used
[INFO] [stdout]  --> stdext/src/numbers.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn factors(n: u32) -> Vec<u32> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prime` is never used
[INFO] [stdout]   --> stdext/src/numbers.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn prime(n: u32) -> bool {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `primes` is never used
[INFO] [stdout]   --> stdext/src/numbers.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn primes(list: impl IntoIterator<Item = u32>) -> impl Iterator<Item = u32> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Object` is never used
[INFO] [stdout]  --> stdext/src/object.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub trait Object: Clone + PartialEq + Hash {
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Enum` is never used
[INFO] [stdout]   --> stdext/src/object.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub trait Enum: Object {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Plus` is never used
[INFO] [stdout]  --> stdext/src/plus.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait Plus<T> {
[INFO] [stdout]   |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]   --> stdext/src/plus.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn test1() {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `quicksort` is never used
[INFO] [stdout]  --> stdext/src/quicksort.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn quicksort<T: PartialOrd>(mut list: Vec<T>) -> Vec<T> {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sorting_flap` is never used
[INFO] [stdout]   --> stdext/src/quicksort.rs:61:4
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn sorting_flap<T>(left_condition: impl Fn(&T) -> bool) -> impl Fn(T) -> (Option<T>, Option<T>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> stdext/src/quicksort.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn test() {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Step` is never constructed
[INFO] [stdout]   --> stdext/src/recipe.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Step<'a, Input, Output>(String, Arc<dyn Runnable<Input, Output> + 'a>);
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `action` is never used
[INFO] [stdout]   --> stdext/src/recipe.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl<'a, Input, Output> Step<'a, Input, Output> {
[INFO] [stdout]    | ----------------------------------------------- associated function in this implementation
[INFO] [stdout] 26 |     pub fn action<Closure>(alias: impl Display, closure: Closure) -> Self
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `identity` is never used
[INFO] [stdout]   --> stdext/src/recipe.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn identity<Input>() -> impl Fn(Input) -> Input {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Recipe` is never constructed
[INFO] [stdout]   --> stdext/src/recipe.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct Recipe<'a, Ingredients, Outcome> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> stdext/src/recipe.rs:60:12
[INFO] [stdout]     |
[INFO] [stdout]  59 | impl<'a, Ingredients, Outcome> Recipe<'a, Ingredients, Outcome> {
[INFO] [stdout]     | --------------------------------------------------------------- associated items in this implementation
[INFO] [stdout]  60 |     pub fn initially<Closure: Runnable<Ingredients, Outcome> + 'a>(
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  69 |     pub fn then<Closure: Runnable<Outcome, Outcome> + 'a>(
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  77 |     pub fn replace_first<Closure: Runnable<Outcome, Outcome> + 'a>(
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  94 |     pub fn replace<Closure: Runnable<Outcome, Outcome> + 'a + Clone>(
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     pub fn replace_initial<Closure: Runnable<Ingredients, Outcome> + 'a>(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 117 |     pub fn remove_first(&mut self, alias: impl Display) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 130 |     pub fn remove(&mut self, alias: impl Display) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 |     pub fn get(&self, alias: impl Display) -> Step<'a, Outcome, Outcome>
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Pipe` is never used
[INFO] [stdout]    --> stdext/src/recipe.rs:171:11
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub trait Pipe<Closure, Return>
[INFO] [stdout]     |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Apply` is never used
[INFO] [stdout]    --> stdext/src/recipe.rs:190:11
[INFO] [stdout]     |
[INFO] [stdout] 190 | pub trait Apply<Closure>
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `LogErr` is never used
[INFO] [stdout]    --> stdext/src/recipe.rs:225:11
[INFO] [stdout]     |
[INFO] [stdout] 225 | pub trait LogErr {
[INFO] [stdout]     |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Runnable` is never used
[INFO] [stdout]    --> stdext/src/recipe.rs:242:11
[INFO] [stdout]     |
[INFO] [stdout] 242 | pub trait Runnable<Arg, Return> {
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Pass` is never used
[INFO] [stdout]    --> stdext/src/recipe.rs:269:11
[INFO] [stdout]     |
[INFO] [stdout] 269 | pub trait Pass<Arg: Clone> {
[INFO] [stdout]     |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Discard` is never used
[INFO] [stdout]    --> stdext/src/recipe.rs:284:11
[INFO] [stdout]     |
[INFO] [stdout] 284 | pub trait Discard {
[INFO] [stdout]     |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BoxInternal` is never constructed
[INFO] [stdout]    --> stdext/src/recipe.rs:306:16
[INFO] [stdout]     |
[INFO] [stdout] 306 |     pub struct BoxInternal(i32, i32, f32);
[INFO] [stdout]     |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Boxy` is never constructed
[INFO] [stdout]    --> stdext/src/recipe.rs:307:16
[INFO] [stdout]     |
[INFO] [stdout] 307 |     pub struct Boxy<'a>(Recipe<'a, (), BoxInternal>);
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `width`, `height`, and `rotate` are never used
[INFO] [stdout]    --> stdext/src/recipe.rs:309:12
[INFO] [stdout]     |
[INFO] [stdout] 308 |     impl<'a> Boxy<'a> {
[INFO] [stdout]     |     ----------------- associated items in this implementation
[INFO] [stdout] 309 |         fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 317 |         fn width(&mut self, value: i32) -> &mut Self {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 324 |         fn height(&mut self, value: i32) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 331 |         fn rotate(&mut self, degrees: f32) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]    --> stdext/src/recipe.rs:345:12
[INFO] [stdout]     |
[INFO] [stdout] 345 |     pub fn test1() {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Shape` is never used
[INFO] [stdout]    --> stdext/src/recipe.rs:362:10
[INFO] [stdout]     |
[INFO] [stdout] 362 |     enum Shape {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `square` and `area` are never used
[INFO] [stdout]    --> stdext/src/recipe.rs:367:12
[INFO] [stdout]     |
[INFO] [stdout] 366 |     impl Shape {
[INFO] [stdout]     |     ---------- associated items in this implementation
[INFO] [stdout] 367 |         fn square(side: f32) -> Self {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 370 |         fn area(self) -> f32 {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test2` is never used
[INFO] [stdout]    --> stdext/src/recipe.rs:377:12
[INFO] [stdout]     |
[INFO] [stdout] 377 |     pub fn test2() {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SubStr` is never used
[INFO] [stdout]  --> stdext/src/substr.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait SubStr {
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test1` is never used
[INFO] [stdout]   --> stdext/src/substr.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn test1() {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `BinaryTree` is never used
[INFO] [stdout]  --> stdext/src/tree.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum BinaryTree<'a, T> {
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `contains` and `insert` are never used
[INFO] [stdout]   --> stdext/src/tree.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl<'a, T: PartialOrd> BinaryTree<'a, T> {
[INFO] [stdout]    | ----------------------------------------- methods in this implementation
[INFO] [stdout]  9 |     fn contains(&self, target: Option<&T>) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     fn insert(&'a mut self, item: T) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NoneError` is never constructed
[INFO] [stdout]  --> stdext/src/whoops.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct NoneError;
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Whoops` is never used
[INFO] [stdout]   --> stdext/src/whoops.rs:25:10
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub type Whoops = Result<(), Box<dyn Error>>;
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IntoWhoops` is never used
[INFO] [stdout]   --> stdext/src/whoops.rs:27:11
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub trait IntoWhoops {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `attempt` is never used
[INFO] [stdout]   --> stdext/src/whoops.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn attempt<Closure, Return>(closure: Closure) -> Whoops
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Catch` is never used
[INFO] [stdout]   --> stdext/src/whoops.rs:63:11
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub trait Catch {
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait method `needsRebuild` should have a snake case name
[INFO] [stdout]   --> stdext/src/compose.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn needsRebuild(&self, old_widget: &Self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^ help: convert the identifier to snake case: `needs_rebuild`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> stdext/src/linked_list.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn iter(&self) -> ListRefIter<T> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn iter(&self) -> ListRefIter<'_, T> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> stdext/src/linked_list.rs:77:21
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn iter_mut(&mut self) -> ListRefMutIter<T> {
[INFO] [stdout]    |                     ^^^^^^^^^     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn iter_mut(&mut self) -> ListRefMutIter<'_, T> {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking simple_server v0.1.0 (/opt/rustwide/workdir/simple_server)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 58.45s
[INFO] running `Command { std: "docker" "inspect" "02f066242f3caf3dfd759822d8f9d99eefa8d5025e58ee5f6ba778af92289211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02f066242f3caf3dfd759822d8f9d99eefa8d5025e58ee5f6ba778af92289211", kill_on_drop: false }`
[INFO] [stdout] 02f066242f3caf3dfd759822d8f9d99eefa8d5025e58ee5f6ba778af92289211
