[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 }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tracing-panic v0.1.2 [INFO] [stderr] Downloaded assert_cmd v2.0.15 [INFO] [stderr] Downloaded aws-lc-rs v1.8.1 [INFO] [stderr] Downloaded aws-lc-sys v0.20.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+1f5783cbeb5da8b38566d718631d016891e9c912" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 129c6469709af6dadb31a1cbee222e79656f0f3576d5c45dcd0dbd88db9fad33 [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 }` [INFO] [stdout] 129c6469709af6dadb31a1cbee222e79656f0f3576d5c45dcd0dbd88db9fad33 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+1f5783cbeb5da8b38566d718631d016891e9c912" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a63d894c261c26cc5a6577250e8f6e53cdc381097fc9923eca82990b86a31ac7 [INFO] running `Command { std: "docker" "start" "-a" 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v1.2.1 [INFO] [stderr] Compiling fs-err v2.11.0 [INFO] [stderr] Checking miniz_oxide v0.7.4 [INFO] [stderr] Checking crc32fast v1.4.2 [INFO] [stderr] Checking webpki-roots v0.26.3 [INFO] [stderr] Compiling rustix v0.38.34 [INFO] [stderr] Checking matchers v0.1.0 [INFO] [stderr] Checking linux-raw-sys v0.4.14 [INFO] [stderr] Compiling cmake v0.1.50 [INFO] [stderr] Checking fastrand v2.1.0 [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 { [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 { [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> { [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 { [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 { [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, [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> { [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, [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 { [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 { [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 { [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 { [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) -> 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) -> 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