[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 try#438eb4c1a1c3841523d7f672601e8adbe04cff28 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-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/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-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kdwk/playground on toolchain 438eb4c1a1c3841523d7f672601e8adbe04cff28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "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" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fec8cf5bb7a32c9d050b228eeac3511c8ad9a6ab498c343dee49448016c1183
[INFO] running `Command { std: "docker" "start" "-a" "8fec8cf5bb7a32c9d050b228eeac3511c8ad9a6ab498c343dee49448016c1183", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fec8cf5bb7a32c9d050b228eeac3511c8ad9a6ab498c343dee49448016c1183", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fec8cf5bb7a32c9d050b228eeac3511c8ad9a6ab498c343dee49448016c1183", kill_on_drop: false }`
[INFO] [stdout] 8fec8cf5bb7a32c9d050b228eeac3511c8ad9a6ab498c343dee49448016c1183
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce95900c6461ce84f0eb3783e0118e62a1d445dc36dc5d64f53bf70877575fb8
[INFO] running `Command { std: "docker" "start" "-a" "ce95900c6461ce84f0eb3783e0118e62a1d445dc36dc5d64f53bf70877575fb8", kill_on_drop: false }`
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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] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]     Checking serde_path_to_error v0.1.17
[INFO] [stderr]     Checking ciborium v0.2.2
[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: `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: 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: 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: 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: 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: 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: 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 bon v3.7.0
[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] [stdout] error: zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/hyper-1.6.0/src/proto/h2/mod.rs:427:5
[INFO] [stdout]     |
[INFO] [stdout] 427 |     impossible: Impossible,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this field contains `Impossible`, which is not inhabited, and makes it not a breaking change to become non-zero-sized in the future.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hyper` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "ce95900c6461ce84f0eb3783e0118e62a1d445dc36dc5d64f53bf70877575fb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce95900c6461ce84f0eb3783e0118e62a1d445dc36dc5d64f53bf70877575fb8", kill_on_drop: false }`
[INFO] [stdout] ce95900c6461ce84f0eb3783e0118e62a1d445dc36dc5d64f53bf70877575fb8
