[INFO] cloning repository https://github.com/rimasu/itest
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rimasu/itest" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frimasu%2Fitest", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frimasu%2Fitest'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9e8c9e9542220d03c50485574640c2b7a618762f
[INFO] checking rimasu/itest against try#73ffebff6f34db7eb167bf9edcf2afa19c3073e9 for pr-147841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frimasu%2Fitest" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rimasu/itest
[INFO] finished tweaking git repo https://github.com/rimasu/itest
[INFO] tweaked toml for git repo https://github.com/rimasu/itest written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rimasu/itest on toolchain 73ffebff6f34db7eb167bf9edcf2afa19c3073e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rimasu/itest 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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 441e8c21f88194faf1fe58f5b2c97095564b8c4f8f5b9bcbc7d959522f7add06
[INFO] running `Command { std: "docker" "start" "-a" "441e8c21f88194faf1fe58f5b2c97095564b8c4f8f5b9bcbc7d959522f7add06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "441e8c21f88194faf1fe58f5b2c97095564b8c4f8f5b9bcbc7d959522f7add06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "441e8c21f88194faf1fe58f5b2c97095564b8c4f8f5b9bcbc7d959522f7add06", kill_on_drop: false }`
[INFO] [stdout] 441e8c21f88194faf1fe58f5b2c97095564b8c4f8f5b9bcbc7d959522f7add06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e8358f2b07dc2bbc574dd280209459597792fccf1543ec5b5ca8e338b1cd36f
[INFO] running `Command { std: "docker" "start" "-a" "9e8358f2b07dc2bbc574dd280209459597792fccf1543ec5b5ca8e338b1cd36f", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `async_trait::async_trait`
[INFO] [stdout]  --> runner/src/components/tempdir.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use async_trait::async_trait;
[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: `tempfile::TempDir`
[INFO] [stdout]  --> runner/src/components/tempdir.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tempfile::TempDir;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fmt` and `time::Instant`
[INFO] [stdout]  --> runner/src/set_up_runner.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt, time::Instant};
[INFO] [stdout]   |           ^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> runner/src/tear_down_runner.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_trait::async_trait`
[INFO] [stdout]  --> runner/src/components/tempdir.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use async_trait::async_trait;
[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: `tempfile::TempDir`
[INFO] [stdout]  --> runner/src/components/tempdir.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tempfile::TempDir;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fmt` and `time::Instant`
[INFO] [stdout]  --> runner/src/set_up_runner.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt, time::Instant};
[INFO] [stdout]   |           ^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> runner/src/tear_down_runner.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handle`
[INFO] [stdout]   --> runner/src/context.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let handle = tokio::spawn(async move {
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handle`
[INFO] [stdout]   --> runner/src/context.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let handle = tokio::spawn(async move {
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SetUpOutcome` is never constructed
[INFO] [stdout]   --> runner/src/set_up_runner.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct SetUpOutcome {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_success` is never used
[INFO] [stdout]   --> runner/src/set_up_runner.rs:17:19
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl SetUpOutcome {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] 17 |     pub(crate) fn is_success(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `progress` is never read
[INFO] [stdout]   --> runner/src/set_up_workers.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub struct SetUpWorkers {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 53 |     progress: ProgressListener,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Skipped` is never constructed
[INFO] [stdout]   --> runner/src/progress/status.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum PhaseResult {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 29 |     Skipped,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PhaseResult` 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: method `task_skipped` is never used
[INFO] [stdout]    --> runner/src/progress/monitor.rs:122:18
[INFO] [stdout]     |
[INFO] [stdout]  79 | impl ProgressListener {
[INFO] [stdout]     | --------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 122 |     pub async fn task_skipped(&self, phase: Phase, task: Task) {
[INFO] [stdout]     |                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SetUpOutcome` is never constructed
[INFO] [stdout]   --> runner/src/set_up_runner.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct SetUpOutcome {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_success` is never used
[INFO] [stdout]   --> runner/src/set_up_runner.rs:17:19
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl SetUpOutcome {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] 17 |     pub(crate) fn is_success(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `progress` is never read
[INFO] [stdout]   --> runner/src/set_up_workers.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub struct SetUpWorkers {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 53 |     progress: ProgressListener,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Skipped` is never constructed
[INFO] [stdout]   --> runner/src/progress/status.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum PhaseResult {
[INFO] [stdout]    |          ----------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 29 |     Skipped,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PhaseResult` 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: method `task_skipped` is never used
[INFO] [stdout]    --> runner/src/progress/monitor.rs:122:18
[INFO] [stdout]     |
[INFO] [stdout]  79 | impl ProgressListener {
[INFO] [stdout]     | --------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 122 |     pub async fn task_skipped(&self, phase: Phase, task: Task) {
[INFO] [stdout]     |                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> runner/src/progress/monitor.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |         self.handle.await;
[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] 75 |         let _ = self.handle.await;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> runner/src/progress/monitor.rs:195:17
[INFO] [stdout]     |
[INFO] [stdout] 195 |                 writeln!(&mut self.stdout, "running {num_tasks} {phase} tasks");
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 195 |                 let _ = writeln!(&mut self.stdout, "running {num_tasks} {phase} tasks");
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> runner/src/progress/monitor.rs:199:17
[INFO] [stdout]     |
[INFO] [stdout] 199 | /                 writeln!(
[INFO] [stdout] 200 | |                     &mut self.stdout,
[INFO] [stdout] 201 | |                     "\n{} {} {} {}",
[INFO] [stdout] 202 | |                     red.render(),
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |                     red.render_reset()
[INFO] [stdout] 206 | |                 );
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 199 |                 let _ = writeln!(
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> runner/src/progress/monitor.rs:226:21
[INFO] [stdout]     |
[INFO] [stdout] 226 | /                     writeln!(
[INFO] [stdout] 227 | |                         &mut self.stdout,
[INFO] [stdout] 228 | |                         "{:8.02}s",
[INFO] [stdout] 229 | |                         duration.as_millis() as f64 / 1000.0
[INFO] [stdout] 230 | |                     );
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 226 |                     let _ = writeln!(
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> runner/src/progress/monitor.rs:232:21
[INFO] [stdout]     |
[INFO] [stdout] 232 |                     writeln!(&mut self.stdout);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 232 |                     let _ = writeln!(&mut self.stdout);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> runner/src/progress/monitor.rs:235:21
[INFO] [stdout]     |
[INFO] [stdout] 235 |                     writeln!(&mut self.stdout, "\t{err_msg}");
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 235 |                     let _ = writeln!(&mut self.stdout, "\t{err_msg}");
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> runner/src/progress/monitor.rs:239:17
[INFO] [stdout]     |
[INFO] [stdout] 239 |                 writeln!(&mut self.stdout, "\n{}", summary);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 239 |                 let _ = writeln!(&mut self.stdout, "\n{}", summary);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> runner/src/progress/monitor.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |         self.handle.await;
[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] 75 |         let _ = self.handle.await;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> runner/src/progress/monitor.rs:195:17
[INFO] [stdout]     |
[INFO] [stdout] 195 |                 writeln!(&mut self.stdout, "running {num_tasks} {phase} tasks");
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 195 |                 let _ = writeln!(&mut self.stdout, "running {num_tasks} {phase} tasks");
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> runner/src/progress/monitor.rs:199:17
[INFO] [stdout]     |
[INFO] [stdout] 199 | /                 writeln!(
[INFO] [stdout] 200 | |                     &mut self.stdout,
[INFO] [stdout] 201 | |                     "\n{} {} {} {}",
[INFO] [stdout] 202 | |                     red.render(),
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |                     red.render_reset()
[INFO] [stdout] 206 | |                 );
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 199 |                 let _ = writeln!(
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> runner/src/progress/monitor.rs:226:21
[INFO] [stdout]     |
[INFO] [stdout] 226 | /                     writeln!(
[INFO] [stdout] 227 | |                         &mut self.stdout,
[INFO] [stdout] 228 | |                         "{:8.02}s",
[INFO] [stdout] 229 | |                         duration.as_millis() as f64 / 1000.0
[INFO] [stdout] 230 | |                     );
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 226 |                     let _ = writeln!(
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> runner/src/progress/monitor.rs:232:21
[INFO] [stdout]     |
[INFO] [stdout] 232 |                     writeln!(&mut self.stdout);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 232 |                     let _ = writeln!(&mut self.stdout);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> runner/src/progress/monitor.rs:235:21
[INFO] [stdout]     |
[INFO] [stdout] 235 |                     writeln!(&mut self.stdout, "\t{err_msg}");
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 235 |                     let _ = writeln!(&mut self.stdout, "\t{err_msg}");
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> runner/src/progress/monitor.rs:239:17
[INFO] [stdout]     |
[INFO] [stdout] 239 |                 writeln!(&mut self.stdout, "\n{}", summary);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 239 |                 let _ = writeln!(&mut self.stdout, "\n{}", summary);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking example_itest v0.1.0 (/opt/rustwide/workdir/example/itest)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 45s
[INFO] running `Command { std: "docker" "inspect" "9e8358f2b07dc2bbc574dd280209459597792fccf1543ec5b5ca8e338b1cd36f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e8358f2b07dc2bbc574dd280209459597792fccf1543ec5b5ca8e338b1cd36f", kill_on_drop: false }`
[INFO] [stdout] 9e8358f2b07dc2bbc574dd280209459597792fccf1543ec5b5ca8e338b1cd36f
