[INFO] cloning repository https://github.com/creative-best-dev/rust-telemetry-workshop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/creative-best-dev/rust-telemetry-workshop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcreative-best-dev%2Frust-telemetry-workshop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcreative-best-dev%2Frust-telemetry-workshop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 17adfb2735a2db81c51499b03a8444e20dc6a229
[INFO] checking creative-best-dev/rust-telemetry-workshop against try#1f5783cbeb5da8b38566d718631d016891e9c912 for pr-142704
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcreative-best-dev%2Frust-telemetry-workshop" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/creative-best-dev/rust-telemetry-workshop on toolchain 1f5783cbeb5da8b38566d718631d016891e9c912
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f5783cbeb5da8b38566d718631d016891e9c912" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/creative-best-dev/rust-telemetry-workshop
[INFO] finished tweaking git repo https://github.com/creative-best-dev/rust-telemetry-workshop
[INFO] tweaked toml for git repo https://github.com/creative-best-dev/rust-telemetry-workshop written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/creative-best-dev/rust-telemetry-workshop 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" "+1f5783cbeb5da8b38566d718631d016891e9c912" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-panic v0.1.2
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[INFO] running `Command { std: "docker" "start" "-a" "129c6469709af6dadb31a1cbee222e79656f0f3576d5c45dcd0dbd88db9fad33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "129c6469709af6dadb31a1cbee222e79656f0f3576d5c45dcd0dbd88db9fad33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "129c6469709af6dadb31a1cbee222e79656f0f3576d5c45dcd0dbd88db9fad33", kill_on_drop: false }`
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[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking predicates v3.1.2
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[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling cmake v0.1.50
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[INFO] [stderr]    Compiling axum-core v0.4.3
[INFO] [stderr]    Compiling axum v0.7.5
[INFO] [stderr]     Checking what_to_log v0.1.0 (/opt/rustwide/workdir/exercises/01_structured_logging/03_what_to_log)
[INFO] [stderr]     Checking flate2 v1.0.30
[INFO] [stdout] warning: unused variable: `order_numbers`
[INFO] [stdout]   --> exercises/01_structured_logging/03_what_to_log/src/lib.rs:16:18
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn get_total(order_numbers: &[u64]) -> Result<u64, anyhow::Error> {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_order_numbers`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_order_details` is never used
[INFO] [stdout]   --> exercises/01_structured_logging/03_what_to_log/src/lib.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn get_order_details(order_number: u64) -> Result<OrderDetails, anyhow::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking facade v0.1.0 (/opt/rustwide/workdir/exercises/03_metrics/01_facade)
[INFO] [stderr]     Checking intro_2 v0.1.0 (/opt/rustwide/workdir/exercises/02_failures/00_intro)
[INFO] [stderr]     Checking log_koan v0.1.0 (/opt/rustwide/workdir/exercises/01_structured_logging/01_log_crate)
[INFO] [stderr]     Checking welcome v0.1.0 (/opt/rustwide/workdir/exercises/00_intro/00_welcome)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> exercises/01_structured_logging/01_log_crate/src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |       todo!();
[INFO] [stdout]    |       ------- any code following this expression is unreachable
[INFO] [stdout] 17 | /     let Some(a) = args.get(0) else {
[INFO] [stdout] 18 | |         return Err("You haven't passed any argument to the program! Two is the minimum.".into());
[INFO] [stdout] 19 | |     };
[INFO] [stdout]    | |______^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> exercises/01_structured_logging/01_log_crate/src/lib.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         todo!();
[INFO] [stdout]    |         ------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 61 |         log::set_max_level(LevelFilter::Trace);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `affirmation` is never used
[INFO] [stdout]  --> exercises/02_failures/00_intro/src/lib.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn affirmation() -> &'static str {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> exercises/01_structured_logging/01_log_crate/src/lib.rs:17:14
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let Some(a) = args.get(0) else {
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> exercises/01_structured_logging/01_log_crate/src/lib.rs:21:14
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let Some(b) = args.get(1) else {
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> exercises/01_structured_logging/01_log_crate/src/lib.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn entrypoint(args: &[String]) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `logger`
[INFO] [stdout]   --> exercises/01_structured_logging/01_log_crate/src/lib.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let logger = Self(Mutex::new(sink));
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_logger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sink`
[INFO] [stdout]   --> exercises/01_structured_logging/01_log_crate/src/lib.rs:80:23
[INFO] [stdout]    |
[INFO] [stdout] 80 |         if let Ok(mut sink) = self.0.lock() {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_sink`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `record`
[INFO] [stdout]   --> exercises/01_structured_logging/01_log_crate/src/lib.rs:77:19
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn log(&self, record: &Record) {
[INFO] [stdout]    |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> exercises/01_structured_logging/01_log_crate/src/lib.rs:80:19
[INFO] [stdout]    |
[INFO] [stdout] 80 |         if let Ok(mut sink) = self.0.lock() {
[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] [stderr]     Checking capstone v0.1.0 (/opt/rustwide/workdir/exercises/03_metrics/07_outro)
[INFO] [stdout] warning: function `affirmation` is never used
[INFO] [stdout]  --> exercises/03_metrics/07_outro/src/lib.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn affirmation() -> &'static str {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greeting` is never used
[INFO] [stdout]   --> exercises/00_intro/00_welcome/src/lib.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn greeting() -> &'static str {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking error_reporters v0.1.0 (/opt/rustwide/workdir/exercises/02_failures/02_error_reporters)
[INFO] [stderr]     Checking intro_3 v0.1.0 (/opt/rustwide/workdir/exercises/03_metrics/00_intro)
[INFO] [stderr]     Checking intro v0.1.0 (/opt/rustwide/workdir/exercises/01_structured_logging/00_intro)
[INFO] [stdout] warning: function `affirmation` is never used
[INFO] [stdout]  --> exercises/03_metrics/00_intro/src/lib.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn affirmation() -> &'static str {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling aws-lc-sys v0.20.1
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking tracing-serde v0.1.3
[INFO] [stderr]     Checking url v2.5.2
[INFO] [stderr]     Checking regex v1.10.5
[INFO] [stderr]     Checking bstr v1.10.0
[INFO] [stderr]     Checking assert-json-diff v2.0.2
[INFO] [stderr]     Checking helpers v0.1.0 (/opt/rustwide/workdir/helpers)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> helpers/src/lib.rs:76:18
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn lines(&self) -> LogLines {
[INFO] [stdout]    |                  ^^^^^     -------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn lines(&self) -> LogLines<'_> {
[INFO] [stdout]    |                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> helpers/src/lib.rs:76:18
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn lines(&self) -> LogLines {
[INFO] [stdout]    |                  ^^^^^     -------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn lines(&self) -> LogLines<'_> {
[INFO] [stdout]    |                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stdout] warning: unused variable: `order_numbers`
[INFO] [stdout]   --> exercises/01_structured_logging/03_what_to_log/src/lib.rs:16:18
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn get_total(order_numbers: &[u64]) -> Result<u64, anyhow::Error> {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_order_numbers`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_order_details` is never used
[INFO] [stdout]   --> exercises/01_structured_logging/03_what_to_log/src/lib.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn get_order_details(order_number: u64) -> Result<OrderDetails, anyhow::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking describe v0.1.0 (/opt/rustwide/workdir/exercises/03_metrics/02_describe)
[INFO] [stderr]     Checking log_filter_koan v0.1.0 (/opt/rustwide/workdir/exercises/01_structured_logging/02_log_levels)
[INFO] [stdout] warning: unused variable: `metadata`
[INFO] [stdout]   --> exercises/01_structured_logging/02_log_levels/src/logger.rs:48:23
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn enabled(&self, metadata: &Metadata) -> bool {
[INFO] [stdout]    |                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metadata`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `default_level_filter` and `module_filters` are never read
[INFO] [stdout]   --> exercises/01_structured_logging/02_log_levels/src/logger.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct FilteredLogger {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] 8  |     default_level_filter: LevelFilter,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     module_filters: HashMap<String, LevelFilter>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> exercises/01_structured_logging/01_log_crate/src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |       todo!();
[INFO] [stdout]    |       ------- any code following this expression is unreachable
[INFO] [stdout] 17 | /     let Some(a) = args.get(0) else {
[INFO] [stdout] 18 | |         return Err("You haven't passed any argument to the program! Two is the minimum.".into());
[INFO] [stdout] 19 | |     };
[INFO] [stdout]    | |______^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> exercises/01_structured_logging/01_log_crate/src/lib.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         todo!();
[INFO] [stdout]    |         ------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 61 |         log::set_max_level(LevelFilter::Trace);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> exercises/01_structured_logging/01_log_crate/src/lib.rs:17:14
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let Some(a) = args.get(0) else {
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> exercises/01_structured_logging/01_log_crate/src/lib.rs:21:14
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let Some(b) = args.get(1) else {
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> exercises/01_structured_logging/01_log_crate/src/lib.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn entrypoint(args: &[String]) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `logger`
[INFO] [stdout]   --> exercises/01_structured_logging/01_log_crate/src/lib.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let logger = Self(Mutex::new(sink));
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_logger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metadata`
[INFO] [stdout]   --> exercises/01_structured_logging/02_log_levels/src/logger.rs:48:23
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn enabled(&self, metadata: &Metadata) -> bool {
[INFO] [stdout]    |                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metadata`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sink`
[INFO] [stdout]   --> exercises/01_structured_logging/01_log_crate/src/lib.rs:80:23
[INFO] [stdout]    |
[INFO] [stdout] 80 |         if let Ok(mut sink) = self.0.lock() {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_sink`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `record`
[INFO] [stdout]   --> exercises/01_structured_logging/01_log_crate/src/lib.rs:77:19
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn log(&self, record: &Record) {
[INFO] [stdout]    |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> exercises/01_structured_logging/01_log_crate/src/lib.rs:80:19
[INFO] [stdout]    |
[INFO] [stdout] 80 |         if let Ok(mut sink) = self.0.lock() {
[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: fields `default_level_filter` and `module_filters` are never read
[INFO] [stdout]   --> exercises/01_structured_logging/02_log_levels/src/logger.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct FilteredLogger {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] 8  |     default_level_filter: LevelFilter,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     module_filters: HashMap<String, LevelFilter>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling zerocopy-derive v0.6.6
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]    Compiling async-trait v0.1.81
[INFO] [stderr]    Compiling prost-derive v0.13.1
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]     Checking tokio v1.39.2
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]     Checking zerocopy v0.6.6
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.18
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking opentelemetry v0.24.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking prost v0.13.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking structured v0.1.0 (/opt/rustwide/workdir/exercises/01_structured_logging/07_structured_output)
[INFO] [stderr]     Checking instrument_macro v0.1.0 (/opt/rustwide/workdir/exercises/01_structured_logging/06_instrument_macro)
[INFO] [stderr]     Checking tracing_training v0.1.0 (/opt/rustwide/workdir/exercises/01_structured_logging/04_tracing)
[INFO] [stderr]     Checking kv v0.1.0 (/opt/rustwide/workdir/exercises/01_structured_logging/05_fields)
[INFO] [stderr]     Checking tracing-panic v0.1.2
[INFO] [stderr]     Checking lifecycle v0.1.0 (/opt/rustwide/workdir/exercises/01_structured_logging/10_span_lifecycle)
[INFO] [stderr]     Checking error_trait v0.1.0 (/opt/rustwide/workdir/exercises/02_failures/01_error_trait)
[INFO] [stderr]     Checking tls v0.1.0 (/opt/rustwide/workdir/exercises/01_structured_logging/11_thread_local_state)
[INFO] [stdout] error[E0425]: cannot find value `parent` in this scope
[INFO] [stdout]   --> exercises/01_structured_logging/11_thread_local_state/src/lib.rs:14:56
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let spawned_span = tracing::info_span!(parent: parent, "spawned1");
[INFO] [stdout]    |                                                        ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> exercises/01_structured_logging/10_span_lifecycle/src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let span = tracing::info_span!("My unit of work");
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `order_numbers`
[INFO] [stdout]   --> exercises/01_structured_logging/04_tracing/src/lib.rs:18:18
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn get_total(order_numbers: &[u64]) -> Result<u64, anyhow::Error> {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_order_numbers`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_order_details` is never used
[INFO] [stdout]   --> exercises/01_structured_logging/04_tracing/src/lib.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn get_order_details(order_number: u64) -> Result<OrderDetails, anyhow::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tls` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> exercises/01_structured_logging/10_span_lifecycle/src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let span = tracing::info_span!("My unit of work");
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `order_numbers`
[INFO] [stdout]   --> exercises/01_structured_logging/04_tracing/src/lib.rs:18:18
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn get_total(order_numbers: &[u64]) -> Result<u64, anyhow::Error> {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_order_numbers`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_order_details` is never used
[INFO] [stdout]   --> exercises/01_structured_logging/04_tracing/src/lib.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn get_order_details(order_number: u64) -> Result<OrderDetails, anyhow::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> exercises/02_failures/01_error_trait/src/lib.rs:31:16
[INFO] [stdout]    |
[INFO] [stdout] 31 |     if let Err(e) = &outcome {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]    --> exercises/02_failures/01_error_trait/src/lib.rs:122:13
[INFO] [stdout]     |
[INFO] [stdout] 122 |         let error = telemetry_wrapper().unwrap_err();
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `source_chain` is never used
[INFO] [stdout]   --> exercises/02_failures/01_error_trait/src/lib.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn source_chain<E>(e: E) -> String
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> exercises/02_failures/01_error_trait/src/lib.rs:31:16
[INFO] [stdout]    |
[INFO] [stdout] 31 |     if let Err(e) = &outcome {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `source_chain` is never used
[INFO] [stdout]   --> exercises/02_failures/01_error_trait/src/lib.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn source_chain<E>(e: E) -> String
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fallible_operation` is never used
[INFO] [stdout]   --> exercises/02_failures/01_error_trait/src/lib.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn fallible_operation() -> Result<(), OpaqueError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DatabaseError` is never constructed
[INFO] [stdout]   --> exercises/02_failures/01_error_trait/src/lib.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | struct DatabaseError {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OpaqueError` is never constructed
[INFO] [stdout]   --> exercises/02_failures/01_error_trait/src/lib.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | struct OpaqueError {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OpaqueError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `init_test_subscriber` is never used
[INFO] [stdout]  --> exercises/02_failures/01_error_trait/src/subscriber.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn init_test_subscriber() -> MockWriter {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a63d894c261c26cc5a6577250e8f6e53cdc381097fc9923eca82990b86a31ac7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a63d894c261c26cc5a6577250e8f6e53cdc381097fc9923eca82990b86a31ac7", kill_on_drop: false }`
[INFO] [stdout] a63d894c261c26cc5a6577250e8f6e53cdc381097fc9923eca82990b86a31ac7
