[INFO] cloning repository https://github.com/emanguy/rust-presentation-code [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emanguy/rust-presentation-code" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanguy%2Frust-presentation-code", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanguy%2Frust-presentation-code'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a85d1bd042987deaac3ae446f2ab4fe6f4702d8e [INFO] testing emanguy/rust-presentation-code against 1.76.0 for beta-1.77-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanguy%2Frust-presentation-code" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/emanguy/rust-presentation-code on toolchain 1.76.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/emanguy/rust-presentation-code [INFO] finished tweaking git repo https://github.com/emanguy/rust-presentation-code [INFO] tweaked toml for git repo https://github.com/emanguy/rust-presentation-code written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/emanguy/rust-presentation-code 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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] testing emanguy/rust-presentation-code against beta-2024-02-10 for beta-1.77-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femanguy%2Frust-presentation-code" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/emanguy/rust-presentation-code on toolchain beta-2024-02-10 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/emanguy/rust-presentation-code [INFO] finished tweaking git repo https://github.com/emanguy/rust-presentation-code [INFO] tweaked toml for git repo https://github.com/emanguy/rust-presentation-code written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/emanguy/rust-presentation-code 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" "+beta-2024-02-10" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b52ca970b2fd644facd7d939c4cbdc69eeb617f6617fc58ab61bbe9abf518aa3 [INFO] running `Command { std: "docker" "start" "-a" "b52ca970b2fd644facd7d939c4cbdc69eeb617f6617fc58ab61bbe9abf518aa3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b52ca970b2fd644facd7d939c4cbdc69eeb617f6617fc58ab61bbe9abf518aa3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b52ca970b2fd644facd7d939c4cbdc69eeb617f6617fc58ab61bbe9abf518aa3", kill_on_drop: false }` [INFO] [stdout] b52ca970b2fd644facd7d939c4cbdc69eeb617f6617fc58ab61bbe9abf518aa3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b191d1bb2e14fd6114fbbaeb414ff0ee45e5c75db62caa4295d07b877e5c5f8c [INFO] running `Command { std: "docker" "start" "-a" "b191d1bb2e14fd6114fbbaeb414ff0ee45e5c75db62caa4295d07b877e5c5f8c", kill_on_drop: false }` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.06s [INFO] running `Command { std: "docker" "inspect" "b191d1bb2e14fd6114fbbaeb414ff0ee45e5c75db62caa4295d07b877e5c5f8c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b191d1bb2e14fd6114fbbaeb414ff0ee45e5c75db62caa4295d07b877e5c5f8c", kill_on_drop: false }` [INFO] [stdout] b191d1bb2e14fd6114fbbaeb414ff0ee45e5c75db62caa4295d07b877e5c5f8c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e9d4ee0cf064402b6a27f8652866c4bf9f587ffe4ee0faf964ad5eda1cdcbb13 [INFO] running `Command { std: "docker" "start" "-a" "e9d4ee0cf064402b6a27f8652866c4bf9f587ffe4ee0faf964ad5eda1cdcbb13", kill_on_drop: false }` [INFO] [stderr] Compiling presentation-code v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variants `Red`, `Blue`, and `RGBA` are never constructed [INFO] [stdout] --> examples/p06_pattern_matching_enums.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 41 | enum Color { [INFO] [stdout] | ----- variants in this enum [INFO] [stdout] 42 | Red, [INFO] [stdout] | ^^^ [INFO] [stdout] 43 | Green, [INFO] [stdout] 44 | Blue, [INFO] [stdout] | ^^^^ [INFO] [stdout] 45 | RGB(i32, i32, i32), // This enum value holds a tuple of 3 numbers [INFO] [stdout] 46 | RGBA { // This enum value holds values like a struct [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `third_num` [INFO] [stdout] --> examples/p02_variables_mutability.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let third_num: f32 = 20.5; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_third_num` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `result` is assigned to, but never used [INFO] [stdout] --> examples/p02_variables_mutability.rs:17:13 [INFO] [stdout] | [INFO] [stdout] 17 | let mut result = 0; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_result` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `result` is never read [INFO] [stdout] --> examples/p02_variables_mutability.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | result = first_num + second_num as i32; // There are no implicit casts either! [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: fields `x_pos` and `y_pos` are never read [INFO] [stdout] --> examples/p04_traits.rs:54:5 [INFO] [stdout] | [INFO] [stdout] 53 | struct ClonablePoint { [INFO] [stdout] | ------------- fields in this struct [INFO] [stdout] 54 | x_pos: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 55 | y_pos: i32 [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ClonablePoint` has a derived impl for the trait `Clone`, 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: unused variable: `acquired_value` [INFO] [stdout] --> examples/p07_option_result.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let acquired_value = match value_exists { [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_acquired_value` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `easier_value_get` [INFO] [stdout] --> examples/p07_option_result.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let easier_value_get = value_doesnt_exist.unwrap_or(0); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_easier_value_get` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> examples/p07_option_result.rs:18:17 [INFO] [stdout] | [INFO] [stdout] 18 | if let Some(value) = value_doesnt_exist { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> examples/p07_option_result.rs:22:14 [INFO] [stdout] | [INFO] [stdout] 22 | let Some(value) = value_exists else { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `ViolatedConstraint` is never constructed [INFO] [stdout] --> examples/p07_option_result.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 44 | enum DbError { [INFO] [stdout] | ------- variant in this enum [INFO] [stdout] 45 | ConnectionProblem, [INFO] [stdout] 46 | ViolatedConstraint, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `database_lookup_v1` is never used [INFO] [stdout] --> examples/p07_option_result.rs:54:4 [INFO] [stdout] | [INFO] [stdout] 54 | fn database_lookup_v1() -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.93s [INFO] running `Command { std: "docker" "inspect" "e9d4ee0cf064402b6a27f8652866c4bf9f587ffe4ee0faf964ad5eda1cdcbb13", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e9d4ee0cf064402b6a27f8652866c4bf9f587ffe4ee0faf964ad5eda1cdcbb13", kill_on_drop: false }` [INFO] [stdout] e9d4ee0cf064402b6a27f8652866c4bf9f587ffe4ee0faf964ad5eda1cdcbb13 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] d4c8c351f6443d66dff78829547f71de1f251f26a66a818adb954626ce0fbe02 [INFO] running `Command { std: "docker" "start" "-a" "d4c8c351f6443d66dff78829547f71de1f251f26a66a818adb954626ce0fbe02", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `acquired_value` [INFO] [stderr] --> examples/p07_option_result.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | let acquired_value = match value_exists { [INFO] [stderr] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_acquired_value` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `easier_value_get` [INFO] [stderr] --> examples/p07_option_result.rs:13:9 [INFO] [stderr] | [INFO] [stderr] 13 | let easier_value_get = value_doesnt_exist.unwrap_or(0); [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_easier_value_get` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> examples/p07_option_result.rs:18:17 [INFO] [stderr] | [INFO] [stderr] 18 | if let Some(value) = value_doesnt_exist { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> examples/p07_option_result.rs:22:14 [INFO] [stderr] | [INFO] [stderr] 22 | let Some(value) = value_exists else { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: variant `ViolatedConstraint` is never constructed [INFO] [stderr] --> examples/p07_option_result.rs:46:5 [INFO] [stderr] | [INFO] [stderr] 44 | enum DbError { [INFO] [stderr] | ------- variant in this enum [INFO] [stderr] 45 | ConnectionProblem, [INFO] [stderr] 46 | ViolatedConstraint, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function `database_lookup_v1` is never used [INFO] [stderr] --> examples/p07_option_result.rs:54:4 [INFO] [stderr] | [INFO] [stderr] 54 | fn database_lookup_v1() -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `presentation-code` (example "p07_option_result") generated 6 warnings (run `cargo fix --example "p07_option_result"` to apply 4 suggestions) [INFO] [stderr] warning: unused variable: `third_num` [INFO] [stderr] --> examples/p02_variables_mutability.rs:13:9 [INFO] [stderr] | [INFO] [stderr] 13 | let third_num: f32 = 20.5; [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_third_num` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `result` is assigned to, but never used [INFO] [stderr] --> examples/p02_variables_mutability.rs:17:13 [INFO] [stderr] | [INFO] [stderr] 17 | let mut result = 0; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_result` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `result` is never read [INFO] [stderr] --> examples/p02_variables_mutability.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | result = first_num + second_num as i32; // There are no implicit casts either! [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: fields `x_pos` and `y_pos` are never read [INFO] [stderr] --> examples/p04_traits.rs:54:5 [INFO] [stderr] | [INFO] [stderr] 53 | struct ClonablePoint { [INFO] [stderr] | ------------- fields in this struct [INFO] [stderr] 54 | x_pos: i32, [INFO] [stderr] | ^^^^^ [INFO] [stderr] 55 | y_pos: i32 [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `ClonablePoint` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variants `Red`, `Blue`, and `RGBA` are never constructed [INFO] [stderr] --> examples/p06_pattern_matching_enums.rs:42:5 [INFO] [stderr] | [INFO] [stderr] 41 | enum Color { [INFO] [stderr] | ----- variants in this enum [INFO] [stderr] 42 | Red, [INFO] [stderr] | ^^^ [INFO] [stderr] 43 | Green, [INFO] [stderr] 44 | Blue, [INFO] [stderr] | ^^^^ [INFO] [stderr] 45 | RGB(i32, i32, i32), // This enum value holds a tuple of 3 numbers [INFO] [stderr] 46 | RGBA { // This enum value holds values like a struct [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `presentation-code` (example "p02_variables_mutability") generated 3 warnings (run `cargo fix --example "p02_variables_mutability"` to apply 1 suggestion) [INFO] [stderr] warning: `presentation-code` (example "p04_traits") generated 1 warning [INFO] [stderr] warning: `presentation-code` (example "p06_pattern_matching_enums") generated 1 warning [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] running `Command { std: "docker" "inspect" "d4c8c351f6443d66dff78829547f71de1f251f26a66a818adb954626ce0fbe02", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d4c8c351f6443d66dff78829547f71de1f251f26a66a818adb954626ce0fbe02", kill_on_drop: false }` [INFO] [stdout] d4c8c351f6443d66dff78829547f71de1f251f26a66a818adb954626ce0fbe02