[INFO] cloning repository https://github.com/birchsport/grok
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/birchsport/grok" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbirchsport%2Fgrok", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbirchsport%2Fgrok'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 51929111caaa4ae23ea1f6379163d36174065619
[INFO] checking birchsport/grok/51929111caaa4ae23ea1f6379163d36174065619 against master#292be5c7c05138d753bbd4b30db7a3f1a5c914f7 for pr-148271
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbirchsport%2Fgrok" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/birchsport/grok
[INFO] finished tweaking git repo https://github.com/birchsport/grok
[INFO] tweaked toml for git repo https://github.com/birchsport/grok written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/birchsport/grok on toolchain 292be5c7c05138d753bbd4b30db7a3f1a5c914f7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+292be5c7c05138d753bbd4b30db7a3f1a5c914f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+292be5c7c05138d753bbd4b30db7a3f1a5c914f7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]      Locking 186 packages to latest compatible versions
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[INFO] [stderr]       Adding subtle v2.4.1 (available: v2.6.1)
[INFO] [stderr]       Adding tokio v1.20.6 (available: v1.48.0)
[INFO] [stderr]       Adding tokio-util v0.7.3 (available: v0.7.16)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+292be5c7c05138d753bbd4b30db7a3f1a5c914f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+292be5c7c05138d753bbd4b30db7a3f1a5c914f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 748df43e868c2178285ca8e95b556266894213baa1e409e49fe530d43c1785a9
[INFO] running `Command { std: "docker" "start" "-a" "748df43e868c2178285ca8e95b556266894213baa1e409e49fe530d43c1785a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "748df43e868c2178285ca8e95b556266894213baa1e409e49fe530d43c1785a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "748df43e868c2178285ca8e95b556266894213baa1e409e49fe530d43c1785a9", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+292be5c7c05138d753bbd4b30db7a3f1a5c914f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "3e5d269aad5558caff549604082a4f6409befb36cc592bf212f1035d75476cbd", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[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: `std::ops::Deref`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DateTime`
[INFO] [stdout]   --> src/main.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 | use chrono::{DateTime, NaiveDateTime, TimeZone, Utc};
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/main.rs:145:22
[INFO] [stdout]     |
[INFO] [stdout] 145 |             for x in (0..8) {
[INFO] [stdout]     |                      ^    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 145 -             for x in (0..8) {
[INFO] [stdout] 145 +             for x in 0..8  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::collections::HashMap;
[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: `std::ops::Deref`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DateTime`
[INFO] [stdout]   --> src/main.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 | use chrono::{DateTime, NaiveDateTime, TimeZone, Utc};
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/main.rs:145:22
[INFO] [stdout]     |
[INFO] [stdout] 145 |             for x in (0..8) {
[INFO] [stdout]     |                      ^    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 145 -             for x in (0..8) {
[INFO] [stdout] 145 +             for x in 0..8  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `chrono::NaiveDateTime::from_timestamp`: use `DateTime::from_timestamp` instead
[INFO] [stdout]    --> src/main.rs:351:41
[INFO] [stdout]     |
[INFO] [stdout] 351 |                 let dt = NaiveDateTime::from_timestamp(jm.instant.unwrap()
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TimeZone`
[INFO] [stdout]   --> src/main.rs:13:39
[INFO] [stdout]    |
[INFO] [stdout] 13 | use chrono::{DateTime, NaiveDateTime, TimeZone, Utc};
[INFO] [stdout]    |                                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `chrono::NaiveDateTime::from_timestamp`: use `DateTime::from_timestamp` instead
[INFO] [stdout]    --> src/main.rs:351:41
[INFO] [stdout]     |
[INFO] [stdout] 351 |                 let dt = NaiveDateTime::from_timestamp(jm.instant.unwrap()
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TimeZone`
[INFO] [stdout]   --> src/main.rs:13:39
[INFO] [stdout]    |
[INFO] [stdout] 13 | use chrono::{DateTime, NaiveDateTime, TimeZone, Utc};
[INFO] [stdout]    |                                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/main.rs:231:26
[INFO] [stdout]     |
[INFO] [stdout] 231 |             for event in get_log_resp.events {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 231 -             for event in get_log_resp.events {
[INFO] [stdout] 231 +             while let Some(event) = get_log_resp.events {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 231 -             for event in get_log_resp.events {
[INFO] [stdout] 231 +             if let Some(event) = get_log_resp.events {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/main.rs:275:22
[INFO] [stdout]     |
[INFO] [stdout] 275 |         for event in desc_groups_resp.log_groups {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 275 -         for event in desc_groups_resp.log_groups {
[INFO] [stdout] 275 +         while let Some(event) = desc_groups_resp.log_groups {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 275 -         for event in desc_groups_resp.log_groups {
[INFO] [stdout] 275 +         if let Some(event) = desc_groups_resp.log_groups {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/main.rs:302:22
[INFO] [stdout]     |
[INFO] [stdout] 302 |         for event in desc_groups_resp.log_groups {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 302 -         for event in desc_groups_resp.log_groups {
[INFO] [stdout] 302 +         while let Some(event) = desc_groups_resp.log_groups {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 302 -         for event in desc_groups_resp.log_groups {
[INFO] [stdout] 302 +         if let Some(event) = desc_groups_resp.log_groups {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:354:17
[INFO] [stdout]     |
[INFO] [stdout] 354 | /                 write!(
[INFO] [stdout] 355 | |                     out_line,
[INFO] [stdout] 356 | |                     "{}{} {} -- {} [{}] {}{} {}{} - {}{}{}",
[INFO] [stdout] 357 | |                     color_str(!nocolor, &color::Reset),
[INFO] [stdout] ...   |
[INFO] [stdout] 374 | |                     color_str(!nocolor, &color::Reset)
[INFO] [stdout] 375 | |                 );
[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] 354 |                 let _ = write!(
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:380:29
[INFO] [stdout]     |
[INFO] [stdout] 380 | ...                   writeln!(out_line, "Context map: ");
[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] 380 |                             let _ = writeln!(out_line, "Context map: ");
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:382:33
[INFO] [stdout]     |
[INFO] [stdout] 382 | / ...                   writeln!(
[INFO] [stdout] 383 | | ...                       out_line,
[INFO] [stdout] 384 | | ...                       "\t {} = {}", k, v);
[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] 382 |                                 let _ = writeln!(
[INFO] [stdout]     |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:395:25
[INFO] [stdout]     |
[INFO] [stdout] 395 |                         writeln!(out_line, "Stacktrace: {} - {}", t.name, t.message.unwrap_or("none".to_string()));
[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] 395 |                         let _ = writeln!(out_line, "Stacktrace: {} - {}", t.name, t.message.unwrap_or("none".to_string()));
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:397:29
[INFO] [stdout]     |
[INFO] [stdout] 397 | / ...                   writeln!(
[INFO] [stdout] 398 | | ...                       out_line,
[INFO] [stdout] 399 | | ...                       "\t at {}{}.{} ({}:{}) [{}]{}",
[INFO] [stdout] 400 | | ...                       color_str(!nocolor, &color::Red),
[INFO] [stdout] ...   |
[INFO] [stdout] 406 | | ...                       color_str(!nocolor, &color::Reset)
[INFO] [stdout] 407 | | ...                   );
[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] 397 |                             let _ = writeln!(
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:411:33
[INFO] [stdout]     |
[INFO] [stdout] 411 | ...                   writeln!(out_line, "Caused by: {} - {}", c.name, c.message);
[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] 411 |                                 let _ = writeln!(out_line, "Caused by: {} - {}", c.name, c.message);
[INFO] [stdout]     |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:413:37
[INFO] [stdout]     |
[INFO] [stdout] 413 | / ...                   writeln!(
[INFO] [stdout] 414 | | ...                       out_line,
[INFO] [stdout] 415 | | ...                       "\t at {}{}.{} ({}:{}) [{}]{}",
[INFO] [stdout] 416 | | ...                       color_str(!nocolor, &color::Red),
[INFO] [stdout] ...   |
[INFO] [stdout] 422 | | ...                       color_str(!nocolor, &color::Reset)
[INFO] [stdout] 423 | | ...                   );
[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] 413 |                                     let _ = writeln!(
[INFO] [stdout]     |                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:427:41
[INFO] [stdout]     |
[INFO] [stdout] 427 | ...                   writeln!(out_line, "Caused by: {} - {}", sc.name, sc.message);
[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] 427 |                                         let _ = writeln!(out_line, "Caused by: {} - {}", sc.name, sc.message);
[INFO] [stdout]     |                                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:429:45
[INFO] [stdout]     |
[INFO] [stdout] 429 | / ...                   writeln!(
[INFO] [stdout] 430 | | ...                       out_line,
[INFO] [stdout] 431 | | ...                       "\t at {}{}.{} ({}:{}) [{}]{}",
[INFO] [stdout] 432 | | ...                       color_str(!nocolor, &color::Red),
[INFO] [stdout] ...   |
[INFO] [stdout] 438 | | ...                       color_str(!nocolor, &color::Reset)
[INFO] [stdout] 439 | | ...                   );
[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] 429 |                                             let _ = writeln!(
[INFO] [stdout]     |                                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:460:13
[INFO] [stdout]     |
[INFO] [stdout] 460 |             write!(out_line, "{} {} -- {}", group.clone(), stream.clone(), line);
[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] 460 |             let _ = write!(out_line, "{} {} -- {}", group.clone(), stream.clone(), line);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/main.rs:231:26
[INFO] [stdout]     |
[INFO] [stdout] 231 |             for event in get_log_resp.events {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 231 -             for event in get_log_resp.events {
[INFO] [stdout] 231 +             while let Some(event) = get_log_resp.events {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 231 -             for event in get_log_resp.events {
[INFO] [stdout] 231 +             if let Some(event) = get_log_resp.events {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/main.rs:275:22
[INFO] [stdout]     |
[INFO] [stdout] 275 |         for event in desc_groups_resp.log_groups {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 275 -         for event in desc_groups_resp.log_groups {
[INFO] [stdout] 275 +         while let Some(event) = desc_groups_resp.log_groups {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 275 -         for event in desc_groups_resp.log_groups {
[INFO] [stdout] 275 +         if let Some(event) = desc_groups_resp.log_groups {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/main.rs:302:22
[INFO] [stdout]     |
[INFO] [stdout] 302 |         for event in desc_groups_resp.log_groups {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 302 -         for event in desc_groups_resp.log_groups {
[INFO] [stdout] 302 +         while let Some(event) = desc_groups_resp.log_groups {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 302 -         for event in desc_groups_resp.log_groups {
[INFO] [stdout] 302 +         if let Some(event) = desc_groups_resp.log_groups {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:354:17
[INFO] [stdout]     |
[INFO] [stdout] 354 | /                 write!(
[INFO] [stdout] 355 | |                     out_line,
[INFO] [stdout] 356 | |                     "{}{} {} -- {} [{}] {}{} {}{} - {}{}{}",
[INFO] [stdout] 357 | |                     color_str(!nocolor, &color::Reset),
[INFO] [stdout] ...   |
[INFO] [stdout] 374 | |                     color_str(!nocolor, &color::Reset)
[INFO] [stdout] 375 | |                 );
[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] 354 |                 let _ = write!(
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:380:29
[INFO] [stdout]     |
[INFO] [stdout] 380 | ...                   writeln!(out_line, "Context map: ");
[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] 380 |                             let _ = writeln!(out_line, "Context map: ");
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:382:33
[INFO] [stdout]     |
[INFO] [stdout] 382 | / ...                   writeln!(
[INFO] [stdout] 383 | | ...                       out_line,
[INFO] [stdout] 384 | | ...                       "\t {} = {}", k, v);
[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] 382 |                                 let _ = writeln!(
[INFO] [stdout]     |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:395:25
[INFO] [stdout]     |
[INFO] [stdout] 395 |                         writeln!(out_line, "Stacktrace: {} - {}", t.name, t.message.unwrap_or("none".to_string()));
[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] 395 |                         let _ = writeln!(out_line, "Stacktrace: {} - {}", t.name, t.message.unwrap_or("none".to_string()));
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:397:29
[INFO] [stdout]     |
[INFO] [stdout] 397 | / ...                   writeln!(
[INFO] [stdout] 398 | | ...                       out_line,
[INFO] [stdout] 399 | | ...                       "\t at {}{}.{} ({}:{}) [{}]{}",
[INFO] [stdout] 400 | | ...                       color_str(!nocolor, &color::Red),
[INFO] [stdout] ...   |
[INFO] [stdout] 406 | | ...                       color_str(!nocolor, &color::Reset)
[INFO] [stdout] 407 | | ...                   );
[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] 397 |                             let _ = writeln!(
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:411:33
[INFO] [stdout]     |
[INFO] [stdout] 411 | ...                   writeln!(out_line, "Caused by: {} - {}", c.name, c.message);
[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] 411 |                                 let _ = writeln!(out_line, "Caused by: {} - {}", c.name, c.message);
[INFO] [stdout]     |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:413:37
[INFO] [stdout]     |
[INFO] [stdout] 413 | / ...                   writeln!(
[INFO] [stdout] 414 | | ...                       out_line,
[INFO] [stdout] 415 | | ...                       "\t at {}{}.{} ({}:{}) [{}]{}",
[INFO] [stdout] 416 | | ...                       color_str(!nocolor, &color::Red),
[INFO] [stdout] ...   |
[INFO] [stdout] 422 | | ...                       color_str(!nocolor, &color::Reset)
[INFO] [stdout] 423 | | ...                   );
[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] 413 |                                     let _ = writeln!(
[INFO] [stdout]     |                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:427:41
[INFO] [stdout]     |
[INFO] [stdout] 427 | ...                   writeln!(out_line, "Caused by: {} - {}", sc.name, sc.message);
[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] 427 |                                         let _ = writeln!(out_line, "Caused by: {} - {}", sc.name, sc.message);
[INFO] [stdout]     |                                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:429:45
[INFO] [stdout]     |
[INFO] [stdout] 429 | / ...                   writeln!(
[INFO] [stdout] 430 | | ...                       out_line,
[INFO] [stdout] 431 | | ...                       "\t at {}{}.{} ({}:{}) [{}]{}",
[INFO] [stdout] 432 | | ...                       color_str(!nocolor, &color::Red),
[INFO] [stdout] ...   |
[INFO] [stdout] 438 | | ...                       color_str(!nocolor, &color::Reset)
[INFO] [stdout] 439 | | ...                   );
[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] 429 |                                             let _ = writeln!(
[INFO] [stdout]     |                                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:460:13
[INFO] [stdout]     |
[INFO] [stdout] 460 |             write!(out_line, "{} {} -- {}", group.clone(), stream.clone(), line);
[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] 460 |             let _ = write!(out_line, "{} {} -- {}", group.clone(), stream.clone(), line);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "3e5d269aad5558caff549604082a4f6409befb36cc592bf212f1035d75476cbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e5d269aad5558caff549604082a4f6409befb36cc592bf212f1035d75476cbd", kill_on_drop: false }`
[INFO] [stdout] 3e5d269aad5558caff549604082a4f6409befb36cc592bf212f1035d75476cbd
