[INFO] fetching crate tracing_storage_logger 0.1.16...
[INFO] testing tracing_storage_logger-0.1.16 against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] extracting crate tracing_storage_logger 0.1.16 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate tracing_storage_logger 0.1.16 on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracing_storage_logger 0.1.16
[INFO] finished tweaking crates.io crate tracing_storage_logger 0.1.16
[INFO] tweaked toml for crates.io crate tracing_storage_logger 0.1.16 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate tracing_storage_logger 0.1.16 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" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded readme v0.1.0
[INFO] [stderr]   Downloaded ucd-util v0.1.9
[INFO] [stderr]   Downloaded string-builder v0.2.0
[INFO] [stderr]   Downloaded file-rotate v0.7.0
[INFO] [stderr]   Downloaded parse-zoneinfo v0.1.1
[INFO] [stderr]   Downloaded chrono-tz v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 135e5bfbc268bae1b7de23c91ebdcfad7c95ef824c7b5e12341b108890184222
[INFO] running `Command { std: "docker" "start" "-a" "135e5bfbc268bae1b7de23c91ebdcfad7c95ef824c7b5e12341b108890184222", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "135e5bfbc268bae1b7de23c91ebdcfad7c95ef824c7b5e12341b108890184222", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "135e5bfbc268bae1b7de23c91ebdcfad7c95ef824c7b5e12341b108890184222", kill_on_drop: false }`
[INFO] [stdout] 135e5bfbc268bae1b7de23c91ebdcfad7c95ef824c7b5e12341b108890184222
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 711b0cf44637c41394063a9f9c763a2fb418e3e31c63d814eb2dea52443ee85f
[INFO] running `Command { std: "docker" "start" "-a" "711b0cf44637c41394063a9f9c763a2fb418e3e31c63d814eb2dea52443ee85f", kill_on_drop: false }`
[INFO] [stderr] warning: tracing_storage_logger v0.1.16 (/opt/rustwide/workdir) ignoring invalid dependency `readme` which is missing a lib target
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling libc v0.2.127
[INFO] [stderr]    Compiling ucd-util v0.1.9
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling once_cell v1.13.0
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling serde v1.0.142
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling tracing-core v0.1.29
[INFO] [stderr]    Compiling miniz_oxide v0.5.3
[INFO] [stderr]    Compiling serde_json v1.0.83
[INFO] [stderr]    Compiling chrono v0.4.20
[INFO] [stderr]    Compiling flate2 v1.0.24
[INFO] [stderr]    Compiling tracing-log v0.1.3
[INFO] [stderr]    Compiling thread_local v1.1.4
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling itoa v1.0.3
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling smallvec v1.9.0
[INFO] [stderr]    Compiling string-builder v0.2.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.15
[INFO] [stderr]    Compiling parse-zoneinfo v0.1.1
[INFO] [stderr]    Compiling file-rotate v0.7.0
[INFO] [stderr]    Compiling chrono-tz v0.4.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.22
[INFO] [stderr]    Compiling tracing v0.1.36
[INFO] [stderr]    Compiling tracing_storage_logger v0.1.16 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fmt::Layer`
[INFO] [stdout]  --> src/logger.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tracing_subscriber::{fmt::Layer, prelude::*};
[INFO] [stdout]   |                          ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono_tz::US::Eastern`
[INFO] [stdout]  --> src/custom_layer/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use chrono_tz::US::Eastern;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `suffix::AppendCount`
[INFO] [stdout]  --> src/custom_layer/mod.rs:6:45
[INFO] [stdout]   |
[INFO] [stdout] 6 | use file_rotate::{compression::Compression, suffix::AppendCount, ContentLimit, FileRotate};
[INFO] [stdout]   |                                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::Cell`
[INFO] [stdout]  --> src/custom_layer/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::cell::Cell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Scope`
[INFO] [stdout]   --> src/custom_layer/mod.rs:14:36
[INFO] [stdout]    |
[INFO] [stdout] 14 | use tracing_subscriber::registry::{Scope, SpanRef};
[INFO] [stdout]    |                                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `registry::Extensions`
[INFO] [stdout]   --> src/custom_layer/mod.rs:15:26
[INFO] [stdout]    |
[INFO] [stdout] 15 | use tracing_subscriber::{registry::Extensions, Layer};
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]   --> src/custom_layer/mod.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut visitor = JsonVisitor(&mut fields);
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attrs`
[INFO] [stdout]   --> src/custom_layer/mod.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         attrs: &tracing::span::Attributes<'_>,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_attrs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/custom_layer/mod.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut visitor = JsonVisitor(&mut fields);
[INFO] [stdout]    |             ----^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spans` is never read
[INFO] [stdout]    --> src/custom_layer/mod.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |         let mut spans = Vec::<SpanRef<'_, S>>::new();
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]    --> src/custom_layer/mod.rs:208:13
[INFO] [stdout]     |
[INFO] [stdout] 208 |         let output = serde_json::json!({
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/custom_layer/mod.rs:185:17
[INFO] [stdout]     |
[INFO] [stdout] 185 |             let mut parse_me = value.to_string();
[INFO] [stdout]     |                 ----^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |             write!( w, "{b}"); 
[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)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |             writeln!(w, "");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |             write!( w, "{n}");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |             writeln!( w, "");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |             write!( w, "{s}");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |             writeln!( w, "");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:34:25
[INFO] [stdout]    |
[INFO] [stdout] 34 |                         write!( w, "{start_indent}{indent_str}{key}:\n");
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:38:25
[INFO] [stdout]    |
[INFO] [stdout] 38 |                         write!( w, "{start_indent}{indent_str}{key}:\n");
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:41:25
[INFO] [stdout]    |
[INFO] [stdout] 41 |                         write!( w, "{start_indent}{indent_str}{key}: ");
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/custom_layer/mod.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |             writeln!(log, "{indent}[{name}]");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/custom_layer/mod.rs:202:21
[INFO] [stdout]     |
[INFO] [stdout] 202 |                     writeln!(&mut log, "{}{}", indent, value.to_string());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Subscriber`, `debug_span`, `error`, `info_span`, `info`, `instrument`, `warn`
[INFO] [stdout]  --> src/logger.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use tracing::{debug_span, error, info, info_span, instrument, warn, Subscriber};
[INFO] [stdout]   |                   ^^^^^^^^^^  ^^^^^  ^^^^  ^^^^^^^^^  ^^^^^^^^^^  ^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::Layer`
[INFO] [stdout]  --> src/logger.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tracing_subscriber::{fmt::Layer, prelude::*};
[INFO] [stdout]   |                          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono_tz::US::Eastern`
[INFO] [stdout]  --> src/custom_layer/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use chrono_tz::US::Eastern;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `suffix::AppendCount`
[INFO] [stdout]  --> src/custom_layer/mod.rs:6:45
[INFO] [stdout]   |
[INFO] [stdout] 6 | use file_rotate::{compression::Compression, suffix::AppendCount, ContentLimit, FileRotate};
[INFO] [stdout]   |                                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::Cell`
[INFO] [stdout]  --> src/custom_layer/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::cell::Cell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Scope`
[INFO] [stdout]   --> src/custom_layer/mod.rs:14:36
[INFO] [stdout]    |
[INFO] [stdout] 14 | use tracing_subscriber::registry::{Scope, SpanRef};
[INFO] [stdout]    |                                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `registry::Extensions`
[INFO] [stdout]   --> src/custom_layer/mod.rs:15:26
[INFO] [stdout]    |
[INFO] [stdout] 15 | use tracing_subscriber::{registry::Extensions, Layer};
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]   --> src/custom_layer/mod.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut visitor = JsonVisitor(&mut fields);
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attrs`
[INFO] [stdout]   --> src/custom_layer/mod.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         attrs: &tracing::span::Attributes<'_>,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_attrs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/custom_layer/mod.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut visitor = JsonVisitor(&mut fields);
[INFO] [stdout]    |             ----^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spans` is never read
[INFO] [stdout]    --> src/custom_layer/mod.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |         let mut spans = Vec::<SpanRef<'_, S>>::new();
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]    --> src/custom_layer/mod.rs:208:13
[INFO] [stdout]     |
[INFO] [stdout] 208 |         let output = serde_json::json!({
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/custom_layer/mod.rs:185:17
[INFO] [stdout]     |
[INFO] [stdout] 185 |             let mut parse_me = value.to_string();
[INFO] [stdout]     |                 ----^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `logger`
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let logger = Logger::new(
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_logger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Logger` is never constructed
[INFO] [stdout]  --> src/logger.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Logger;
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Logger` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/logger.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Logger {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 17 |     pub fn new(path: PathBuf, limit: ContentLimit, max_files: usize, time_zone: Tz) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `max_files` is never read
[INFO] [stdout]   --> src/custom_layer/mod.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct CustomLayer {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub max_files: usize,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `get_span_path` is never used
[INFO] [stdout]    --> src/custom_layer/mod.rs:222:12
[INFO] [stdout]     |
[INFO] [stdout] 221 | impl CustomLayer {
[INFO] [stdout]     | ---------------- associated function in this implementation
[INFO] [stdout] 222 |     pub fn get_span_path() {}
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/custom_layer/mod.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |             writeln!(log, "{indent}[{name}]");
[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)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/custom_layer/mod.rs:202:21
[INFO] [stdout]     |
[INFO] [stdout] 202 |                     writeln!(&mut log, "{}{}", indent, value.to_string());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |             write!( w, "{b}"); 
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |             writeln!(w, "");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |             write!( w, "{n}");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |             writeln!( w, "");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |             write!( w, "{s}");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |             writeln!( w, "");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:34:25
[INFO] [stdout]    |
[INFO] [stdout] 34 |                         write!( w, "{start_indent}{indent_str}{key}:\n");
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:38:25
[INFO] [stdout]    |
[INFO] [stdout] 38 |                         write!( w, "{start_indent}{indent_str}{key}:\n");
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:41:25
[INFO] [stdout]    |
[INFO] [stdout] 41 |                         write!( w, "{start_indent}{indent_str}{key}: ");
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.48s
[INFO] running `Command { std: "docker" "inspect" "711b0cf44637c41394063a9f9c763a2fb418e3e31c63d814eb2dea52443ee85f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "711b0cf44637c41394063a9f9c763a2fb418e3e31c63d814eb2dea52443ee85f", kill_on_drop: false }`
[INFO] [stdout] 711b0cf44637c41394063a9f9c763a2fb418e3e31c63d814eb2dea52443ee85f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 168ee8794009106ddb8330c543a44ebcd692db092d538b1d33be17d7791ed96b
[INFO] running `Command { std: "docker" "start" "-a" "168ee8794009106ddb8330c543a44ebcd692db092d538b1d33be17d7791ed96b", kill_on_drop: false }`
[INFO] [stderr] warning: tracing_storage_logger v0.1.16 (/opt/rustwide/workdir) ignoring invalid dependency `readme` which is missing a lib target
[INFO] [stdout] warning: unused import: `fmt::Layer`
[INFO] [stdout]  --> src/logger.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tracing_subscriber::{fmt::Layer, prelude::*};
[INFO] [stdout]   |                          ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono_tz::US::Eastern`
[INFO] [stdout]  --> src/custom_layer/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use chrono_tz::US::Eastern;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `suffix::AppendCount`
[INFO] [stdout]  --> src/custom_layer/mod.rs:6:45
[INFO] [stdout]   |
[INFO] [stdout] 6 | use file_rotate::{compression::Compression, suffix::AppendCount, ContentLimit, FileRotate};
[INFO] [stdout]   |                                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::Cell`
[INFO] [stdout]  --> src/custom_layer/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::cell::Cell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Scope`
[INFO] [stdout]   --> src/custom_layer/mod.rs:14:36
[INFO] [stdout]    |
[INFO] [stdout] 14 | use tracing_subscriber::registry::{Scope, SpanRef};
[INFO] [stdout]    |                                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `registry::Extensions`
[INFO] [stdout]   --> src/custom_layer/mod.rs:15:26
[INFO] [stdout]    |
[INFO] [stdout] 15 | use tracing_subscriber::{registry::Extensions, Layer};
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]   --> src/custom_layer/mod.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut visitor = JsonVisitor(&mut fields);
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attrs`
[INFO] [stdout]   --> src/custom_layer/mod.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         attrs: &tracing::span::Attributes<'_>,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_attrs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/custom_layer/mod.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut visitor = JsonVisitor(&mut fields);
[INFO] [stdout]    |             ----^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spans` is never read
[INFO] [stdout]    --> src/custom_layer/mod.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |         let mut spans = Vec::<SpanRef<'_, S>>::new();
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]    --> src/custom_layer/mod.rs:208:13
[INFO] [stdout]     |
[INFO] [stdout] 208 |         let output = serde_json::json!({
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/custom_layer/mod.rs:185:17
[INFO] [stdout]     |
[INFO] [stdout] 185 |             let mut parse_me = value.to_string();
[INFO] [stdout]     |                 ----^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |             write!( w, "{b}"); 
[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)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |             writeln!(w, "");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |             write!( w, "{n}");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |             writeln!( w, "");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |             write!( w, "{s}");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |             writeln!( w, "");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:34:25
[INFO] [stdout]    |
[INFO] [stdout] 34 |                         write!( w, "{start_indent}{indent_str}{key}:\n");
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:38:25
[INFO] [stdout]    |
[INFO] [stdout] 38 |                         write!( w, "{start_indent}{indent_str}{key}:\n");
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:41:25
[INFO] [stdout]    |
[INFO] [stdout] 41 |                         write!( w, "{start_indent}{indent_str}{key}: ");
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/custom_layer/mod.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |             writeln!(log, "{indent}[{name}]");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/custom_layer/mod.rs:202:21
[INFO] [stdout]     |
[INFO] [stdout] 202 |                     writeln!(&mut log, "{}{}", indent, value.to_string());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tracing_storage_logger v0.1.16 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Subscriber`, `debug_span`, `error`, `info_span`, `info`, `instrument`, `warn`
[INFO] [stdout]  --> src/logger.rs:5:19
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use tracing::{debug_span, error, info, info_span, instrument, warn, Subscriber};
[INFO] [stdout]   |                   ^^^^^^^^^^  ^^^^^  ^^^^  ^^^^^^^^^  ^^^^^^^^^^  ^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::Layer`
[INFO] [stdout]  --> src/logger.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tracing_subscriber::{fmt::Layer, prelude::*};
[INFO] [stdout]   |                          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::Layer`
[INFO] [stdout]  --> src/logger.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tracing_subscriber::{fmt::Layer, prelude::*};
[INFO] [stdout]   |                          ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono_tz::US::Eastern`
[INFO] [stdout]  --> src/custom_layer/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use chrono_tz::US::Eastern;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono_tz::US::Eastern`
[INFO] [stdout]  --> src/custom_layer/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use chrono_tz::US::Eastern;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `suffix::AppendCount`
[INFO] [stdout]  --> src/custom_layer/mod.rs:6:45
[INFO] [stdout]   |
[INFO] [stdout] 6 | use file_rotate::{compression::Compression, suffix::AppendCount, ContentLimit, FileRotate};
[INFO] [stdout]   |                                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `suffix::AppendCount`
[INFO] [stdout]  --> src/custom_layer/mod.rs:6:45
[INFO] [stdout]   |
[INFO] [stdout] 6 | use file_rotate::{compression::Compression, suffix::AppendCount, ContentLimit, FileRotate};
[INFO] [stdout]   |                                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::Cell`
[INFO] [stdout]  --> src/custom_layer/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::cell::Cell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::Cell`
[INFO] [stdout]  --> src/custom_layer/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::cell::Cell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Scope`
[INFO] [stdout]   --> src/custom_layer/mod.rs:14:36
[INFO] [stdout]    |
[INFO] [stdout] 14 | use tracing_subscriber::registry::{Scope, SpanRef};
[INFO] [stdout]    |                                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Scope`
[INFO] [stdout]   --> src/custom_layer/mod.rs:14:36
[INFO] [stdout]    |
[INFO] [stdout] 14 | use tracing_subscriber::registry::{Scope, SpanRef};
[INFO] [stdout]    |                                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `registry::Extensions`
[INFO] [stdout]   --> src/custom_layer/mod.rs:15:26
[INFO] [stdout]    |
[INFO] [stdout] 15 | use tracing_subscriber::{registry::Extensions, Layer};
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `registry::Extensions`
[INFO] [stdout]   --> src/custom_layer/mod.rs:15:26
[INFO] [stdout]    |
[INFO] [stdout] 15 | use tracing_subscriber::{registry::Extensions, Layer};
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]   --> src/custom_layer/mod.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut visitor = JsonVisitor(&mut fields);
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attrs`
[INFO] [stdout]   --> src/custom_layer/mod.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         attrs: &tracing::span::Attributes<'_>,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_attrs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/custom_layer/mod.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut visitor = JsonVisitor(&mut fields);
[INFO] [stdout]    |             ----^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spans` is never read
[INFO] [stdout]    --> src/custom_layer/mod.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |         let mut spans = Vec::<SpanRef<'_, S>>::new();
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]    --> src/custom_layer/mod.rs:208:13
[INFO] [stdout]     |
[INFO] [stdout] 208 |         let output = serde_json::json!({
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visitor`
[INFO] [stdout]   --> src/custom_layer/mod.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut visitor = JsonVisitor(&mut fields);
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attrs`
[INFO] [stdout]   --> src/custom_layer/mod.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         attrs: &tracing::span::Attributes<'_>,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_attrs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/custom_layer/mod.rs:185:17
[INFO] [stdout]     |
[INFO] [stdout] 185 |             let mut parse_me = value.to_string();
[INFO] [stdout]     |                 ----^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/custom_layer/mod.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut visitor = JsonVisitor(&mut fields);
[INFO] [stdout]    |             ----^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `spans` is never read
[INFO] [stdout]    --> src/custom_layer/mod.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |         let mut spans = Vec::<SpanRef<'_, S>>::new();
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `logger`
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let logger = Logger::new(
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_logger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]    --> src/custom_layer/mod.rs:208:13
[INFO] [stdout]     |
[INFO] [stdout] 208 |         let output = serde_json::json!({
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/custom_layer/mod.rs:185:17
[INFO] [stdout]     |
[INFO] [stdout] 185 |             let mut parse_me = value.to_string();
[INFO] [stdout]     |                 ----^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |             write!( w, "{b}"); 
[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)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |             writeln!(w, "");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |             write!( w, "{n}");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |             writeln!( w, "");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |             write!( w, "{s}");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |             writeln!( w, "");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:34:25
[INFO] [stdout]    |
[INFO] [stdout] 34 |                         write!( w, "{start_indent}{indent_str}{key}:\n");
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:38:25
[INFO] [stdout]    |
[INFO] [stdout] 38 |                         write!( w, "{start_indent}{indent_str}{key}:\n");
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:41:25
[INFO] [stdout]    |
[INFO] [stdout] 41 |                         write!( w, "{start_indent}{indent_str}{key}: ");
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/custom_layer/mod.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |             writeln!(log, "{indent}[{name}]");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Logger` is never constructed
[INFO] [stdout]  --> src/logger.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Logger;
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Logger` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/logger.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Logger {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 17 |     pub fn new(path: PathBuf, limit: ContentLimit, max_files: usize, time_zone: Tz) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/custom_layer/mod.rs:202:21
[INFO] [stdout]     |
[INFO] [stdout] 202 |                     writeln!(&mut log, "{}{}", indent, value.to_string());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `max_files` is never read
[INFO] [stdout]   --> src/custom_layer/mod.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct CustomLayer {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub max_files: usize,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `get_span_path` is never used
[INFO] [stdout]    --> src/custom_layer/mod.rs:222:12
[INFO] [stdout]     |
[INFO] [stdout] 221 | impl CustomLayer {
[INFO] [stdout]     | ---------------- associated function in this implementation
[INFO] [stdout] 222 |     pub fn get_span_path() {}
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/custom_layer/mod.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |             writeln!(log, "{indent}[{name}]");
[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)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/custom_layer/mod.rs:202:21
[INFO] [stdout]     |
[INFO] [stdout] 202 |                     writeln!(&mut log, "{}{}", indent, value.to_string());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |             write!( w, "{b}"); 
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |             writeln!(w, "");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |             write!( w, "{n}");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |             writeln!( w, "");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |             write!( w, "{s}");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |             writeln!( w, "");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:34:25
[INFO] [stdout]    |
[INFO] [stdout] 34 |                         write!( w, "{start_indent}{indent_str}{key}:\n");
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:38:25
[INFO] [stdout]    |
[INFO] [stdout] 38 |                         write!( w, "{start_indent}{indent_str}{key}:\n");
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/write_json.rs:41:25
[INFO] [stdout]    |
[INFO] [stdout] 41 |                         write!( w, "{start_indent}{indent_str}{key}: ");
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "168ee8794009106ddb8330c543a44ebcd692db092d538b1d33be17d7791ed96b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "168ee8794009106ddb8330c543a44ebcd692db092d538b1d33be17d7791ed96b", kill_on_drop: false }`
[INFO] [stdout] 168ee8794009106ddb8330c543a44ebcd692db092d538b1d33be17d7791ed96b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bbe962b95a47706afa4f5752c1d0bbe49ebd609df19f53e32a23fb3316a1446d
[INFO] running `Command { std: "docker" "start" "-a" "bbe962b95a47706afa4f5752c1d0bbe49ebd609df19f53e32a23fb3316a1446d", kill_on_drop: false }`
[INFO] [stderr] warning: tracing_storage_logger v0.1.16 (/opt/rustwide/workdir) ignoring invalid dependency `readme` which is missing a lib target
[INFO] [stderr] warning: unused import: `fmt::Layer`
[INFO] [stderr]  --> src/logger.rs:6:26
[INFO] [stderr]   |
[INFO] [stderr] 6 | use tracing_subscriber::{fmt::Layer, prelude::*};
[INFO] [stderr]   |                          ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `chrono_tz::US::Eastern`
[INFO] [stderr]  --> src/custom_layer/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use chrono_tz::US::Eastern;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `suffix::AppendCount`
[INFO] [stderr]  --> src/custom_layer/mod.rs:6:45
[INFO] [stderr]   |
[INFO] [stderr] 6 | use file_rotate::{compression::Compression, suffix::AppendCount, ContentLimit, FileRotate};
[INFO] [stderr]   |                                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::Cell`
[INFO] [stderr]  --> src/custom_layer/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::cell::Cell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Scope`
[INFO] [stderr]   --> src/custom_layer/mod.rs:14:36
[INFO] [stderr]    |
[INFO] [stderr] 14 | use tracing_subscriber::registry::{Scope, SpanRef};
[INFO] [stderr]    |                                    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `registry::Extensions`
[INFO] [stderr]   --> src/custom_layer/mod.rs:15:26
[INFO] [stderr]    |
[INFO] [stderr] 15 | use tracing_subscriber::{registry::Extensions, Layer};
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `visitor`
[INFO] [stderr]   --> src/custom_layer/mod.rs:74:17
[INFO] [stderr]    |
[INFO] [stderr] 74 |         let mut visitor = JsonVisitor(&mut fields);
[INFO] [stderr]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `attrs`
[INFO] [stderr]   --> src/custom_layer/mod.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |         attrs: &tracing::span::Attributes<'_>,
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_attrs`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/custom_layer/mod.rs:74:13
[INFO] [stderr]    |
[INFO] [stderr] 74 |         let mut visitor = JsonVisitor(&mut fields);
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `spans` is never read
[INFO] [stderr]    --> src/custom_layer/mod.rs:121:17
[INFO] [stderr]     |
[INFO] [stderr] 121 |         let mut spans = Vec::<SpanRef<'_, S>>::new();
[INFO] [stderr]     |                 ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]    --> src/custom_layer/mod.rs:208:13
[INFO] [stderr]     |
[INFO] [stderr] 208 |         let output = serde_json::json!({
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/custom_layer/mod.rs:185:17
[INFO] [stderr]     |
[INFO] [stderr] 185 |             let mut parse_me = value.to_string();
[INFO] [stderr]     |                 ----^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/write_json.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |             write!( w, "{b}"); 
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/write_json.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |             writeln!(w, "");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/write_json.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |             write!( w, "{n}");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/write_json.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |             writeln!( w, "");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/write_json.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |             write!( w, "{s}");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/write_json.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |             writeln!( w, "");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/write_json.rs:34:25
[INFO] [stderr]    |
[INFO] [stderr] 34 |                         write!( w, "{start_indent}{indent_str}{key}:\n");
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/write_json.rs:38:25
[INFO] [stderr]    |
[INFO] [stderr] 38 |                         write!( w, "{start_indent}{indent_str}{key}:\n");
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/write_json.rs:41:25
[INFO] [stderr]    |
[INFO] [stderr] 41 |                         write!( w, "{start_indent}{indent_str}{key}: ");
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/custom_layer/mod.rs:183:13
[INFO] [stderr]     |
[INFO] [stderr] 183 |             writeln!(log, "{indent}[{name}]");
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/custom_layer/mod.rs:202:21
[INFO] [stderr]     |
[INFO] [stderr] 202 |                     writeln!(&mut log, "{}{}", indent, value.to_string());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `tracing_storage_logger` (lib) generated 23 warnings (run `cargo fix --lib -p tracing_storage_logger` to apply 8 suggestions)
[INFO] [stderr] warning: `tracing_storage_logger` (lib test) generated 23 warnings (23 duplicates)
[INFO] [stderr] warning: unused imports: `Subscriber`, `debug_span`, `error`, `info_span`, `info`, `instrument`, `warn`
[INFO] [stderr]  --> src/logger.rs:5:19
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub use tracing::{debug_span, error, info, info_span, instrument, warn, Subscriber};
[INFO] [stderr]   |                   ^^^^^^^^^^  ^^^^^  ^^^^  ^^^^^^^^^  ^^^^^^^^^^  ^^^^  ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `fmt::Layer`
[INFO] [stderr]  --> src/logger.rs:6:26
[INFO] [stderr]   |
[INFO] [stderr] 6 | use tracing_subscriber::{fmt::Layer, prelude::*};
[INFO] [stderr]   |                          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `logger`
[INFO] [stderr]   --> src/main.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let logger = Logger::new(
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_logger`
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Logger` is never constructed
[INFO] [stderr]  --> src/logger.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct Logger;
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Logger` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/logger.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 16 | impl Logger {
[INFO] [stderr]    | ----------- associated function in this implementation
[INFO] [stderr] 17 |     pub fn new(path: PathBuf, limit: ContentLimit, max_files: usize, time_zone: Tz) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `max_files` is never read
[INFO] [stderr]   --> src/custom_layer/mod.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub struct CustomLayer {
[INFO] [stderr]    |            ----------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 28 |     pub max_files: usize,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `get_span_path` is never used
[INFO] [stderr]    --> src/custom_layer/mod.rs:222:12
[INFO] [stderr]     |
[INFO] [stderr] 221 | impl CustomLayer {
[INFO] [stderr]     | ---------------- associated function in this implementation
[INFO] [stderr] 222 |     pub fn get_span_path() {}
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/custom_layer/mod.rs:183:13
[INFO] [stderr]     |
[INFO] [stderr] 183 |             writeln!(log, "{indent}[{name}]");
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/write_json.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |             write!( w, "{b}"); 
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `tracing_storage_logger` (bin "main" test) generated 29 warnings (20 duplicates) (run `cargo fix --bin "main" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tracing_storage_logger-c0d074dc750dde05)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/main-1de591842ff71a0e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tracing_storage_logger
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 6) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 6) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/file-rotate-0.7.0/src/lib.rs:432:56:
[INFO] [stdout] create dir: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x559c26239735 - std::backtrace_rs::backtrace::libunwind::trace::h59d96bdb08384354
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stdout]    1:     0x559c26239735 - std::backtrace_rs::backtrace::trace_unsynchronized::h9cf5becacfc93fba
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x559c26239735 - std::sys_common::backtrace::_print_fmt::h10b76d10405dbd48
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x559c26239735 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h6ed9e62a156d84e4
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x559c2625be7b - core::fmt::rt::Argument::fmt::h645c680983f03c9f
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/rt.rs:165:63
[INFO] [stdout]    5:     0x559c2625be7b - core::fmt::write::h8bcd80919a02be29
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/mod.rs:1169:21
[INFO] [stdout]    6:     0x559c2623749f - std::io::Write::write_fmt::hed769ca6c29434ec
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/io/mod.rs:1835:15
[INFO] [stdout]    7:     0x559c2623950e - std::sys_common::backtrace::_print::h6306f131a28d62b0
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x559c2623950e - std::sys_common::backtrace::print::h7079288e0a26dfcc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x559c2623a879 - std::panicking::default_hook::{{closure}}::hb063ecec81a736ba
[INFO] [stdout]   10:     0x559c2623a5bd - std::panicking::default_hook::hd56ee406bf547b5c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:298:9
[INFO] [stdout]   11:     0x559c2623ad13 - std::panicking::rust_panic_with_hook::h624aa3ca42ebb8f2
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:795:13
[INFO] [stdout]   12:     0x559c2623abf4 - std::panicking::begin_panic_handler::{{closure}}::hbc4e76194a5e287c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:664:13
[INFO] [stdout]   13:     0x559c26239bf9 - std::sys_common::backtrace::__rust_end_short_backtrace::h847fedc9d1ff7b6d
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   14:     0x559c2623a927 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:652:5
[INFO] [stdout]   15:     0x559c260f8473 - core::panicking::panic_fmt::hec11a924b87ce965
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:72:14
[INFO] [stdout]   16:     0x559c260f89a6 - core::result::unwrap_failed::h382691b96ca8c13a
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/result.rs:1654:5
[INFO] [stdout]   17:     0x559c26106c6f - core::result::Result<T,E>::expect::h7a50c20ca6cff5e8
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/result.rs:1034:23
[INFO] [stdout]   18:     0x559c26105ae9 - file_rotate::FileRotate<S>::new::h74c601f3a36f5ffa
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/file-rotate-0.7.0/src/lib.rs:432:9
[INFO] [stdout]   19:     0x559c26116441 - <tracing_storage_logger::custom_layer::CustomLayer as tracing_subscriber::layer::Layer<S>>::on_event::hcbfd7d4373ef0d99
[INFO] [stdout]                                at /opt/rustwide/workdir/src/custom_layer/mod.rs:154:24
[INFO] [stdout]   20:     0x559c2610f357 - <tracing_subscriber::layer::layered::Layered<L,S> as tracing_core::subscriber::Subscriber>::event::hb70edd08ea7b2752
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tracing-subscriber-0.3.15/src/layer/layered.rs:154:9
[INFO] [stdout]   21:     0x559c2616e802 - <alloc::sync::Arc<S> as tracing_core::subscriber::Subscriber>::event::h790597bdc209c8f0
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tracing-core-0.1.29/src/subscriber.rs:807:9
[INFO] [stdout]   22:     0x559c261783d7 - tracing_core::dispatcher::Dispatch::event::hcb89c7d54ac5af8e
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tracing-core-0.1.29/src/dispatcher.rs:526:13
[INFO] [stdout]   23:     0x559c261785c1 - tracing_core::event::Event::dispatch::{{closure}}::h3f7ece5518d7400a
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tracing-core-0.1.29/src/event.rs:35:13
[INFO] [stdout]   24:     0x559c261780e8 - tracing_core::dispatcher::get_default::{{closure}}::hc0a3bf89d261b097
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tracing-core-0.1.29/src/dispatcher.rs:337:24
[INFO] [stdout]   25:     0x559c26172be7 - std::thread::local::LocalKey<T>::try_with::h3c67e731599304f2
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/thread/local.rs:286:12
[INFO] [stdout]   26:     0x559c26177b6e - tracing_core::dispatcher::get_default::h0cb89fc9afcf5a97
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tracing-core-0.1.29/src/dispatcher.rs:334:5
[INFO] [stdout]   27:     0x559c26178599 - tracing_core::event::Event::dispatch::h008c68ed0b02616d
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tracing-core-0.1.29/src/event.rs:34:9
[INFO] [stdout]   28:     0x559c260f9dee - rust_out::main::{{closure}}::h2fca105c36a51ae6
[INFO] [stdout]   29:     0x559c260f99c0 - rust_out::main::h696a342f0ae7cd72
[INFO] [stdout]   30:     0x559c260f92d3 - core::ops::function::FnOnce::call_once::hacff659aa20c7b40
[INFO] [stdout]   31:     0x559c260f8ff6 - std::sys_common::backtrace::__rust_begin_short_backtrace::hcc6b8bea3112e884
[INFO] [stdout]   32:     0x559c260f9049 - std::rt::lang_start::{{closure}}::h4db0ca8543e29a47
[INFO] [stdout]   33:     0x559c2623368d - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h239f0051f1e18680
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   34:     0x559c2623368d - std::panicking::try::do_call::hf7072797cbfea7fa
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   35:     0x559c2623368d - std::panicking::try::h3a37e38691a5244b
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   36:     0x559c2623368d - std::panic::catch_unwind::hc7cc1460e4236209
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   37:     0x559c2623368d - std::rt::lang_start_internal::{{closure}}::hce632608b277cffc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/rt.rs:141:48
[INFO] [stdout]   38:     0x559c2623368d - std::panicking::try::do_call::hafc0f13e6abd9d79
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   39:     0x559c2623368d - std::panicking::try::h67b8f1800ef15799
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   40:     0x559c2623368d - std::panic::catch_unwind::he5b260dc522c68be
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   41:     0x559c2623368d - std::rt::lang_start_internal::hf119eb75d1ffe221
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/rt.rs:141:20
[INFO] [stdout]   42:     0x559c260f9027 - std::rt::lang_start::ha9360cc92730957e
[INFO] [stdout]   43:     0x559c260fd345 - main
[INFO] [stdout]   44:     0x7fde43d81d90 - <unknown>
[INFO] [stdout]   45:     0x7fde43d81e40 - __libc_start_main
[INFO] [stdout]   46:     0x559c260f8dc5 - _start
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 6)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.90s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "bbe962b95a47706afa4f5752c1d0bbe49ebd609df19f53e32a23fb3316a1446d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbe962b95a47706afa4f5752c1d0bbe49ebd609df19f53e32a23fb3316a1446d", kill_on_drop: false }`
[INFO] [stdout] bbe962b95a47706afa4f5752c1d0bbe49ebd609df19f53e32a23fb3316a1446d
