[INFO] cloning repository https://github.com/kirinchen/rust-journey
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kirinchen/rust-journey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkirinchen%2Frust-journey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkirinchen%2Frust-journey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e10bb8f2c6b5a4c74b276a16153d3ccafdc65ed6
[INFO] testing kirinchen/rust-journey against 1.99.0-beta.1+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkirinchen%2Frust-journey" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kirinchen/rust-journey
[INFO] finished tweaking git repo https://github.com/kirinchen/rust-journey
[INFO] tweaked toml for git repo https://github.com/kirinchen/rust-journey written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kirinchen/rust-journey on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kirinchen/rust-journey 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" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c3c437194e0dac1f02768c02c77dde03d17f8f95b26ed83d547be549b8c3d3f7
[INFO] running `Command { std: "docker" "start" "c3c437194e0dac1f02768c02c77dde03d17f8f95b26ed83d547be549b8c3d3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3c437194e0dac1f02768c02c77dde03d17f8f95b26ed83d547be549b8c3d3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c3c437194e0dac1f02768c02c77dde03d17f8f95b26ed83d547be549b8c3d3f7" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3c437194e0dac1f02768c02c77dde03d17f8f95b26ed83d547be549b8c3d3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c3c437194e0dac1f02768c02c77dde03d17f8f95b26ed83d547be549b8c3d3f7" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling libc v0.2.185
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling futures-sink v0.3.32
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling pin-project-lite v0.2.17
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling slab v0.4.12
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling futures-task v0.3.32
[INFO] [stderr]    Compiling futures-io v0.3.32
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling bytes v1.11.1
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling phase3_modules v0.1.0 (/opt/rustwide/workdir/phase3_modules)
[INFO] [stderr]    Compiling phase2_memory v0.1.0 (/opt/rustwide/workdir/phase2_memory)
[INFO] [stderr]    Compiling phase1_types v0.1.0 (/opt/rustwide/workdir/phase1_types)
[INFO] [stderr]    Compiling phase0_basics v0.1.0 (/opt/rustwide/workdir/phase0_basics)
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]   --> phase2_memory/src/strings.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let s2: String = String::from("另一種寫法");       // 同上
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `slice2`
[INFO] [stdout]   --> phase2_memory/src/strings.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let slice2: &str = s.as_str();                     // 明確版本
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_slice2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> phase1_types/src/pattern_matching.rs:33:14
[INFO] [stdout]    |
[INFO] [stdout] 33 |             (x, 0) => "x 軸",   // 注意：x 被綁定，但我們忽略它
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> phase1_types/src/structs.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct Color(u8, u8, u8);   // RGB
[INFO] [stdout]    |        ----- ^^  ^^  ^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing these fields
[INFO] [stdout]    = note: `Color` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Marker` is never constructed
[INFO] [stdout]   --> phase1_types/src/structs.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | struct Marker;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NotFound` is never constructed
[INFO] [stdout]   --> phase1_types/src/option_result.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | enum AppError {
[INFO] [stdout]    |      -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 28 |     NotFound(String),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AppError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling mio v1.2.0
[INFO] [stderr]    Compiling socket2 v0.6.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling tokio-macros v2.7.0
[INFO] [stderr]    Compiling tokio v1.52.1
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling futures-executor v0.3.32
[INFO] [stderr]    Compiling futures v0.3.32
[INFO] [stderr]    Compiling phase4_advanced v0.1.0 (/opt/rustwide/workdir/phase4_advanced)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 22.62s
[INFO] running `Command { std: "docker" "inspect" "c3c437194e0dac1f02768c02c77dde03d17f8f95b26ed83d547be549b8c3d3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c3c437194e0dac1f02768c02c77dde03d17f8f95b26ed83d547be549b8c3d3f7" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling phase0_basics v0.1.0 (/opt/rustwide/workdir/phase0_basics)
[INFO] [stderr]    Compiling phase3_modules v0.1.0 (/opt/rustwide/workdir/phase3_modules)
[INFO] [stderr]    Compiling phase2_memory v0.1.0 (/opt/rustwide/workdir/phase2_memory)
[INFO] [stderr]    Compiling phase1_types v0.1.0 (/opt/rustwide/workdir/phase1_types)
[INFO] [stderr]    Compiling phase4_advanced v0.1.0 (/opt/rustwide/workdir/phase4_advanced)
[INFO] [stdout] warning: method `size` is never used
[INFO] [stdout]   --> phase3_modules/examples/ex02_generics.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl<T: Clone + std::fmt::Debug> Stack<T> {
[INFO] [stdout]    | ----------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn size(&self) -> usize {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]   --> phase2_memory/src/strings.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let s2: String = String::from("另一種寫法");       // 同上
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `slice2`
[INFO] [stdout]   --> phase2_memory/src/strings.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let slice2: &str = s.as_str();                     // 明確版本
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_slice2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `host`, `port`, and `max_connections` are never read
[INFO] [stdout]   --> phase1_types/examples/ex03_error_handling.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct ServerConfig {
[INFO] [stdout]    |        ------------ fields in this struct
[INFO] [stdout] 32 |     host: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 33 |     port: u16,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 34 |     max_connections: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ServerConfig` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Jack` and `Queen` are never constructed
[INFO] [stdout]   --> phase1_types/examples/ex02_card_game.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | enum Rank {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 17 |     Num(u8),   // 2-10
[INFO] [stdout] 18 |     Jack,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 19 |     Queen,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Rank` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> phase1_types/src/pattern_matching.rs:33:14
[INFO] [stdout]    |
[INFO] [stdout] 33 |             (x, 0) => "x 軸",   // 注意：x 被綁定，但我們忽略它
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> phase1_types/src/structs.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct Color(u8, u8, u8);   // RGB
[INFO] [stdout]    |        ----- ^^  ^^  ^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing these fields
[INFO] [stdout]    = note: `Color` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Marker` is never constructed
[INFO] [stdout]   --> phase1_types/src/structs.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | struct Marker;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NotFound` is never constructed
[INFO] [stdout]   --> phase1_types/src/option_result.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | enum AppError {
[INFO] [stdout]    |      -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 28 |     NotFound(String),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AppError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 4.48s
[INFO] running `Command { std: "docker" "inspect" "c3c437194e0dac1f02768c02c77dde03d17f8f95b26ed83d547be549b8c3d3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c3c437194e0dac1f02768c02c77dde03d17f8f95b26ed83d547be549b8c3d3f7" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `s2`
[INFO] [stderr]   --> phase2_memory/src/strings.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let s2: String = String::from("另一種寫法");       // 同上
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `slice2`
[INFO] [stderr]   --> phase2_memory/src/strings.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let slice2: &str = s.as_str();                     // 明確版本
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_slice2`
[INFO] [stderr] 
[INFO] [stderr] warning: fields `host`, `port`, and `max_connections` are never read
[INFO] [stderr]   --> phase1_types/examples/ex03_error_handling.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 31 | struct ServerConfig {
[INFO] [stderr]    |        ------------ fields in this struct
[INFO] [stderr] 32 |     host: String,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 33 |     port: u16,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 34 |     max_connections: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ServerConfig` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Jack` and `Queen` are never constructed
[INFO] [stderr]   --> phase1_types/examples/ex02_card_game.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | enum Rank {
[INFO] [stderr]    |      ---- variants in this enum
[INFO] [stderr] 17 |     Num(u8),   // 2-10
[INFO] [stderr] 18 |     Jack,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 19 |     Queen,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Rank` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> phase1_types/src/pattern_matching.rs:33:14
[INFO] [stderr]    |
[INFO] [stderr] 33 |             (x, 0) => "x 軸",   // 注意：x 被綁定，但我們忽略它
[INFO] [stderr]    |              ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0`, `1`, and `2` are never read
[INFO] [stderr]   --> phase1_types/src/structs.rs:47:14
[INFO] [stderr]    |
[INFO] [stderr] 47 | struct Color(u8, u8, u8);   // RGB
[INFO] [stderr]    |        ----- ^^  ^^  ^^
[INFO] [stderr]    |        |
[INFO] [stderr]    |        fields in this struct
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider removing these fields
[INFO] [stderr]    = note: `Color` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Marker` is never constructed
[INFO] [stderr]   --> phase1_types/src/structs.rs:61:8
[INFO] [stderr]    |
[INFO] [stderr] 61 | struct Marker;
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `NotFound` is never constructed
[INFO] [stderr]   --> phase1_types/src/option_result.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | enum AppError {
[INFO] [stderr]    |      -------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 28 |     NotFound(String),
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `AppError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `phase2_memory` (bin "phase2_memory" test) generated 2 warnings (run `cargo fix --bin "phase2_memory" -p phase2_memory --tests` to apply 2 suggestions)
[INFO] [stderr] warning: `phase1_types` (example "ex03_error_handling") generated 1 warning
[INFO] [stderr] warning: `phase1_types` (example "ex02_card_game") generated 1 warning
[INFO] [stderr] warning: `phase1_types` (bin "phase1_types" test) generated 4 warnings (run `cargo fix --bin "phase1_types" -p phase1_types --tests` to apply 1 suggestion)
[INFO] [stderr] warning: method `size` is never used
[INFO] [stderr]   --> phase3_modules/examples/ex02_generics.rs:40:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl<T: Clone + std::fmt::Debug> Stack<T> {
[INFO] [stderr]    | ----------------------------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 40 |     fn size(&self) -> usize {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `phase3_modules` (example "ex02_generics") generated 1 warning
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/deps/phase0_basics-9d53db8b2080d57a)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test control_flow::tests::test_for_sum ... ok
[INFO] [stdout] test control_flow::tests::test_loop_break_value ... ok
[INFO] [stdout] test data_types::tests::test_array_length ... ok
[INFO] [stdout] test data_types::tests::test_integer_overflow_is_compile_error ... ok
[INFO] [stdout] test functions::tests::test_absolute ... ok
[INFO] [stdout] test data_types::tests::test_tuple_destructuring ... ok
[INFO] [stdout] test functions::tests::test_add ... ok
[INFO] [stdout] test functions::tests::test_min_max ... ok
[INFO] [stdout] test control_flow::tests::test_if_as_expression ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/deps/phase1_types-7a63e85bdc586056)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test enums::tests::test_circle_area ... ok
[INFO] [stdout] test enums::tests::test_direction_opposite ... ok
[INFO] [stdout] test enums::tests::test_rectangle_area ... ok
[INFO] [stdout] test option_result::tests::test_find_first_even_found ... ok
[INFO] [stdout] test option_result::tests::test_parse_age_invalid ... ok
[INFO] [stdout] test option_result::tests::test_parse_age_valid ... ok
[INFO] [stdout] test pattern_matching::tests::test_if_let ... ok
[INFO] [stdout] test option_result::tests::test_safe_divide ... ok
[INFO] [stdout] test pattern_matching::tests::test_match_returns_value ... ok
[INFO] [stdout] test pattern_matching::tests::test_tuple_destructuring_in_match ... ok
[INFO] [stdout] test structs::tests::test_deactivate ... ok
[INFO] [stdout] test structs::tests::test_point_distance ... ok
[INFO] [stdout] test structs::tests::test_user_creation ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/deps/phase2_memory-73bc3d353ade06ec)
[INFO] [stdout] test option_result::tests::test_find_first_even_not_found ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.23s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test borrowing::tests::test_append_world ... ok
[INFO] [stdout] test borrowing::tests::test_first_word ... ok
[INFO] [stdout] test ownership::tests::test_clone_is_independent ... ok
[INFO] [stdout] test borrowing::tests::test_calculate_length ... ok
[INFO] [stdout] test ownership::tests::test_copy_types ... ok
[INFO] [stdout] test strings::tests::test_trim ... ok
[INFO] [stdout] test strings::tests::test_unicode_char_count ... ok
[INFO] [stdout] test strings::tests::test_split_collect ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/deps/phase3_modules-fe9e42bd4f51a841)
[INFO] [stdout] test strings::tests::test_string_push ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test generics::tests::test_largest ... ok
[INFO] [stdout] test generics::tests::test_process_numbers ... ok
[INFO] [stdout] test traits::tests::test_cat_override ... ok
[INFO] [stdout] test traits::tests::test_dog_sound ... ok
[INFO] [stdout] test generics::tests::test_pair_swap ... ok
[INFO] [stdout] test traits::tests::test_trainable ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/deps/phase4_advanced-6c97d202620f7928)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test smart_pointers::tests::test_linked_list ... ok
[INFO] [stdout] test smart_pointers::tests::test_rc_count ... ok
[INFO] [stdout] test concurrency::tests::test_channel_basic ... ok
[INFO] [stdout] test concurrency::tests::test_fibonacci ... ok
[INFO] [stdout] test smart_pointers::tests::test_refcell_mutation ... ok
[INFO] [stdout] test concurrency::tests::test_thread_spawn_join ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c3c437194e0dac1f02768c02c77dde03d17f8f95b26ed83d547be549b8c3d3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3c437194e0dac1f02768c02c77dde03d17f8f95b26ed83d547be549b8c3d3f7", kill_on_drop: false }`
[INFO] [stdout] c3c437194e0dac1f02768c02c77dde03d17f8f95b26ed83d547be549b8c3d3f7
