[INFO] cloning repository https://github.com/wyvernbw/jo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wyvernbw/jo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwyvernbw%2Fjo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwyvernbw%2Fjo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9d5a40b3e299781e2517d6be61b2f97b240c00d0
[INFO] checking wyvernbw/jo against master#4b9792692fbb675174d4d2082e7c37b2bc930e71 for pr-153692-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwyvernbw%2Fjo" "/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/wyvernbw/jo
[INFO] finished tweaking git repo https://github.com/wyvernbw/jo
[INFO] tweaked toml for git repo https://github.com/wyvernbw/jo written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/wyvernbw/jo on toolchain 4b9792692fbb675174d4d2082e7c37b2bc930e71
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4b9792692fbb675174d4d2082e7c37b2bc930e71" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/wyvernbw/jo 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" "+4b9792692fbb675174d4d2082e7c37b2bc930e71" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simple-easing v1.0.1
[INFO] [stderr]   Downloaded bon v3.6.4
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[INFO] [stderr]   Downloaded owo-colors v4.2.2
[INFO] [stderr]   Downloaded homedir v0.3.6
[INFO] [stderr]   Downloaded notify v8.1.0
[INFO] [stderr]   Downloaded bytesize v2.0.1
[INFO] [stderr]   Downloaded sysinfo v0.35.2
[INFO] [stderr]   Downloaded objc2-io-kit v0.3.1
[INFO] [stderr]   Downloaded tachyonfx v0.15.0
[INFO] [stderr]   Downloaded smol v2.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+4b9792692fbb675174d4d2082e7c37b2bc930e71" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a5644422ece0fddb1605927f716e68258f3730a6813aceb1ce9e12d394d232f
[INFO] running `Command { std: "docker" "start" "-a" "1a5644422ece0fddb1605927f716e68258f3730a6813aceb1ce9e12d394d232f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a5644422ece0fddb1605927f716e68258f3730a6813aceb1ce9e12d394d232f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a5644422ece0fddb1605927f716e68258f3730a6813aceb1ce9e12d394d232f", kill_on_drop: false }`
[INFO] [stdout] 1a5644422ece0fddb1605927f716e68258f3730a6813aceb1ce9e12d394d232f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+4b9792692fbb675174d4d2082e7c37b2bc930e71" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "30151826ff5a3e7dac1388b78c32e4bbc2dace2f02bd2e1139d1c3d66ec65a89", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `collections::HashMap`
[INFO] [stdout]  --> src/app/state.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cmp::Ordering, collections::HashMap, fmt::Display, sync::Arc};
[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: `ProcessTree`
[INFO] [stdout]   --> src/app/state.rs:16:41
[INFO] [stdout]    |
[INFO] [stdout] 16 |     process::{ProcessData, ProcessNode, ProcessTree},
[INFO] [stdout]    |                                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `bon` and `builder`
[INFO] [stdout]  --> src/app.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use bon::{Builder, bon, builder};
[INFO] [stdout]   |                    ^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::format::DelayedFormat`
[INFO] [stdout]  --> src/app.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use chrono::format::DelayedFormat;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Add`
[INFO] [stdout]   --> src/app.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     ops::Add,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EffectRenderer`
[INFO] [stdout]   --> src/app.rs:24:41
[INFO] [stdout]    |
[INFO] [stdout] 24 | use tachyonfx::{Duration as FxDuration, EffectRenderer};
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ffi::OsString`
[INFO] [stdout]  --> src/process.rs:1:48
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cmp::Ordering, collections::HashMap, ffi::OsString, sync::Arc};
[INFO] [stdout]   |                                                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `if_let_guard` has been stable since 1.95.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(if_let_guard)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collections::HashMap`
[INFO] [stdout]  --> src/app/state.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cmp::Ordering, collections::HashMap, fmt::Display, sync::Arc};
[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: `ProcessTree`
[INFO] [stdout]   --> src/app/state.rs:16:41
[INFO] [stdout]    |
[INFO] [stdout] 16 |     process::{ProcessData, ProcessNode, ProcessTree},
[INFO] [stdout]    |                                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `bon` and `builder`
[INFO] [stdout]  --> src/app.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use bon::{Builder, bon, builder};
[INFO] [stdout]   |                    ^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::format::DelayedFormat`
[INFO] [stdout]  --> src/app.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use chrono::format::DelayedFormat;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Add`
[INFO] [stdout]   --> src/app.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     ops::Add,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `EffectRenderer`
[INFO] [stdout]   --> src/app.rs:24:41
[INFO] [stdout]    |
[INFO] [stdout] 24 | use tachyonfx::{Duration as FxDuration, EffectRenderer};
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ffi::OsString`
[INFO] [stdout]  --> src/process.rs:1:48
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{cmp::Ordering, collections::HashMap, ffi::OsString, sync::Arc};
[INFO] [stdout]   |                                                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `if_let_guard` has been stable since 1.95.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(if_let_guard)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `owo_colors::OwoColorize`
[INFO] [stdout]  --> src/app.rs:6:30
[INFO] [stdout]   |
[INFO] [stdout] 6 | use color_eyre::{SectionExt, owo_colors::OwoColorize};
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SectionExt`
[INFO] [stdout]  --> src/app.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | use color_eyre::{SectionExt, owo_colors::OwoColorize};
[INFO] [stdout]   |                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `owo_colors::OwoColorize`
[INFO] [stdout]  --> src/app.rs:6:30
[INFO] [stdout]   |
[INFO] [stdout] 6 | use color_eyre::{SectionExt, owo_colors::OwoColorize};
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SectionExt`
[INFO] [stdout]  --> src/app.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | use color_eyre::{SectionExt, owo_colors::OwoColorize};
[INFO] [stdout]   |                  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `percentage_area` is assigned to, but never used
[INFO] [stdout]    --> src/app.rs:401:21
[INFO] [stdout]     |
[INFO] [stdout] 401 |                 let mut percentage_area = col_rect.clone().offset(Offset {
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_percentage_area` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `percentage_area` is never read
[INFO] [stdout]    --> src/app.rs:405:17
[INFO] [stdout]     |
[INFO] [stdout] 405 |                 percentage_area.height = 1;
[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: variable `percentage_area` is assigned to, but never used
[INFO] [stdout]    --> src/app.rs:401:21
[INFO] [stdout]     |
[INFO] [stdout] 401 |                 let mut percentage_area = col_rect.clone().offset(Offset {
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_percentage_area` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `percentage_area` is never read
[INFO] [stdout]    --> src/app.rs:405:17
[INFO] [stdout]     |
[INFO] [stdout] 405 |                 percentage_area.height = 1;
[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: field `mem_usage` is never read
[INFO] [stdout]    --> src/app.rs:570:9
[INFO] [stdout]     |
[INFO] [stdout] 567 | pub struct SystemInformation {
[INFO] [stdout]     |            ----------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 570 |     pub mem_usage: f16,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SystemInformation` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mem_usage` is never read
[INFO] [stdout]    --> src/app.rs:570:9
[INFO] [stdout]     |
[INFO] [stdout] 567 | pub struct SystemInformation {
[INFO] [stdout]     |            ----------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 570 |     pub mem_usage: f16,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SystemInformation` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Tree` is never constructed
[INFO] [stdout]    --> src/app/state.rs:270:5
[INFO] [stdout]     |
[INFO] [stdout] 269 | pub enum ProcessView {
[INFO] [stdout]     |          ----------- variant in this enum
[INFO] [stdout] 270 |     Tree,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ProcessView` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Tree` is never constructed
[INFO] [stdout]    --> src/app/state.rs:270:5
[INFO] [stdout]     |
[INFO] [stdout] 269 | pub enum ProcessView {
[INFO] [stdout]     |          ----------- variant in this enum
[INFO] [stdout] 270 |     Tree,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ProcessView` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `stop` and `set_running` are never used
[INFO] [stdout]    --> src/app/state.rs:495:12
[INFO] [stdout]     |
[INFO] [stdout] 462 | impl TuiEffect {
[INFO] [stdout]     | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 495 |     pub fn stop(&mut self) -> &mut Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 503 |     pub fn set_running(&mut self, value: bool) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HighUsagePulseEffect` is never constructed
[INFO] [stdout]    --> src/app/state.rs:591:12
[INFO] [stdout]     |
[INFO] [stdout] 591 | pub struct HighUsagePulseEffect(pub TuiEffect);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `stop` and `set_running` are never used
[INFO] [stdout]    --> src/app/state.rs:495:12
[INFO] [stdout]     |
[INFO] [stdout] 462 | impl TuiEffect {
[INFO] [stdout]     | -------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 495 |     pub fn stop(&mut self) -> &mut Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 503 |     pub fn set_running(&mut self, value: bool) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_root` and `is_process` are never used
[INFO] [stdout]   --> src/process.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl ProcessNode {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn is_root(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn is_process(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HighUsagePulseEffect` is never constructed
[INFO] [stdout]    --> src/app/state.rs:591:12
[INFO] [stdout]     |
[INFO] [stdout] 591 | pub struct HighUsagePulseEffect(pub TuiEffect);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_root` and `is_process` are never used
[INFO] [stdout]   --> src/process.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl ProcessNode {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn is_root(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn is_process(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         file.write_all(buf.as_bytes());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let _ = file.write_all(buf.as_bytes());
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         file.write_all(buf.as_bytes());
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let _ = file.write_all(buf.as_bytes());
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `try_blocks` is declared but not used
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(try_blocks)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `try_blocks` is declared but not used
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(try_blocks)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 38.59s
[INFO] running `Command { std: "docker" "inspect" "30151826ff5a3e7dac1388b78c32e4bbc2dace2f02bd2e1139d1c3d66ec65a89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30151826ff5a3e7dac1388b78c32e4bbc2dace2f02bd2e1139d1c3d66ec65a89", kill_on_drop: false }`
[INFO] [stdout] 30151826ff5a3e7dac1388b78c32e4bbc2dace2f02bd2e1139d1c3d66ec65a89
