[INFO] cloning repository https://github.com/iamseki/studies
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iamseki/studies" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamseki%2Fstudies", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamseki%2Fstudies'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 38993ceb5aafe466ad78c10ad94bc498622607ab
[INFO] testing iamseki/studies against 1.76.0 for beta-1.77-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamseki%2Fstudies" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iamseki/studies 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] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/iamseki/studies
[INFO] finished tweaking git repo https://github.com/iamseki/studies
[INFO] tweaked toml for git repo https://github.com/iamseki/studies written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/iamseki/studies 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3991aa6bd45d0340c668e3e2f67a4cc0f2fc5fc0bdc1e1854962ad797acf6062
[INFO] running `Command { std: "docker" "start" "-a" "3991aa6bd45d0340c668e3e2f67a4cc0f2fc5fc0bdc1e1854962ad797acf6062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3991aa6bd45d0340c668e3e2f67a4cc0f2fc5fc0bdc1e1854962ad797acf6062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3991aa6bd45d0340c668e3e2f67a4cc0f2fc5fc0bdc1e1854962ad797acf6062", kill_on_drop: false }`
[INFO] [stdout] 3991aa6bd45d0340c668e3e2f67a4cc0f2fc5fc0bdc1e1854962ad797acf6062
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74e1f003ff77345a664945deb0bfd1fe5631e31cfd5494bdaa83c7acdcaf8dea
[INFO] running `Command { std: "docker" "start" "-a" "74e1f003ff77345a664945deb0bfd1fe5631e31cfd5494bdaa83c7acdcaf8dea", kill_on_drop: false }`
[INFO] [stderr]    Compiling _rust_math v0.1.0 (/opt/rustwide/workdir/libs/rust/math)
[INFO] [stderr]    Compiling _rust_minigrep v0.1.0 (/opt/rustwide/workdir/apps/rust/minigrep)
[INFO] [stderr]    Compiling _rust_iterators_n_closures v0.1.0 (/opt/rustwide/workdir/apps/rust/iterators_n_closures)
[INFO] [stderr]    Compiling _rust_lib v0.1.0 (/opt/rustwide/workdir/apps/rust/lib)
[INFO] [stderr]    Compiling _rust_concurrency v0.1.0 (/opt/rustwide/workdir/apps/rust/concurrency)
[INFO] [stderr]    Compiling _rust_web_server v0.1.0 (/opt/rustwide/workdir/apps/rust/web_server)
[INFO] [stderr]    Compiling _rust_smart_pointers v0.1.0 (/opt/rustwide/workdir/apps/rust/smart_pointers)
[INFO] [stderr]    Compiling _rust_generics v0.1.0 (/opt/rustwide/workdir/apps/rust/generics)
[INFO] [stderr]    Compiling _rust_structs v0.1.0 (/opt/rustwide/workdir/apps/rust/structs)
[INFO] [stderr]    Compiling _rust_enums v0.1.0 (/opt/rustwide/workdir/apps/rust/enums)
[INFO] [stderr]    Compiling _rust_oop v0.1.0 (/opt/rustwide/workdir/apps/rust/oop)
[INFO] [stderr]    Compiling _rust_ownership_mistakes v0.1.0 (/opt/rustwide/workdir/apps/rust/ownership_mistakes)
[INFO] [stderr]    Compiling _rust_slice v0.1.0 (/opt/rustwide/workdir/apps/rust/slice)
[INFO] [stderr]    Compiling _rust_patterns_matching v0.1.0 (/opt/rustwide/workdir/apps/rust/patterns_matching)
[INFO] [stderr]    Compiling _rust_errors v0.1.0 (/opt/rustwide/workdir/apps/rust/errors)
[INFO] [stderr]    Compiling _rust_ds v0.1.0 (/opt/rustwide/workdir/apps/rust/ds)
[INFO] [stdout] warning: field `seasonal_fruit` is never read
[INFO] [stdout]  --> apps/rust/lib/src/restaurant.rs:3:3
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Breakefast {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 2 |   pub toast: String,
[INFO] [stdout] 3 |   seasonal_fruit: String
[INFO] [stdout]   |   ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]  --> libs/rust/math/src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Rectangle {
[INFO] [stdout]   |        --------- fields in this struct
[INFO] [stdout] 6 |     width: u32,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     height: u32
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `can_hold` is never used
[INFO] [stdout]   --> libs/rust/math/src/lib.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Rectangle {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 11 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `internal_adder` is never used
[INFO] [stdout]   --> libs/rust/math/src/lib.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn internal_adder(a: i32, b: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> libs/rust/math/src/lib.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct Guess {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 39 |     value: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> apps/rust/patterns_matching/src/main.rs:90:6
[INFO] [stdout]    |
[INFO] [stdout] 90 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             x += 1;
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:28:36
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let add_one_closure = |mut x| {
[INFO] [stdout]    |                                    ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut num_red = 0;
[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: variable does not need to be mutable
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut num_blue = 0;
[INFO] [stdout]    |             ----^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `value` and `children` are never read
[INFO] [stdout]   --> apps/rust/smart_pointers/src/reference_cycle.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct Node {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 48 |     value: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 49 |     parent: RefCell<Weak<Node>>,
[INFO] [stdout] 50 |     children: RefCell<Vec<Rc<Node>>>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed
[INFO] [stdout]   --> apps/rust/enums/src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum Message {
[INFO] [stdout]    |      ------- variants in this enum
[INFO] [stdout] 12 |     Quit,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 13 |     Move { x: i32, y: i32},
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     Write(String),
[INFO] [stdout] 15 |     ChangeColor(i32, i32, i32)
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shoes_in_size` is never used
[INFO] [stdout]  --> apps/rust/iterators_n_closures/src/shoes_company.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn shoes_in_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Rgb` is never constructed
[INFO] [stdout]   --> apps/rust/patterns_matching/src/main.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |     enum Color {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] 81 |         Rgb(i32, i32, i32),
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, and `Write` are never constructed
[INFO] [stdout]   --> apps/rust/patterns_matching/src/main.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     enum Message {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] 86 |         Quit,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 87 |         Move { x: i32, y: i32 },
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 88 |         Write(String),
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `y` and `z` are never read
[INFO] [stdout]    --> apps/rust/patterns_matching/src/main.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     struct Point {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 135 |         x: i32,
[INFO] [stdout] 136 |         y: i32,
[INFO] [stdout]     |         ^
[INFO] [stdout] 137 |         z: i32,
[INFO] [stdout]     |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling _rust_testing v0.1.0 (/opt/rustwide/workdir/apps/rust/testing)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]   --> apps/rust/generics/src/main.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     struct Point<T, U> {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 66 |         x: T,
[INFO] [stdout]    |         ^
[INFO] [stdout] 67 |         y: U,
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Point` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> apps/rust/smart_pointers/src/main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let b = Cons(3, Rc::clone(&a));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> apps/rust/smart_pointers/src/main.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let c = Cons(4, Rc::clone(&a));
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::prelude::v1`
[INFO] [stdout]  --> apps/rust/iterators_n_closures/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::prelude::v1;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "74e1f003ff77345a664945deb0bfd1fe5631e31cfd5494bdaa83c7acdcaf8dea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74e1f003ff77345a664945deb0bfd1fe5631e31cfd5494bdaa83c7acdcaf8dea", kill_on_drop: false }`
[INFO] [stdout] 74e1f003ff77345a664945deb0bfd1fe5631e31cfd5494bdaa83c7acdcaf8dea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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" "+1.76.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2ce9b8dd6112016233c1a54a7b0a6a99ab9e4d5dd5e6f705344d4cede7727f7
[INFO] running `Command { std: "docker" "start" "-a" "c2ce9b8dd6112016233c1a54a7b0a6a99ab9e4d5dd5e6f705344d4cede7727f7", kill_on_drop: false }`
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]  --> libs/rust/math/src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Rectangle {
[INFO] [stdout]   |        --------- fields in this struct
[INFO] [stdout] 6 |     width: u32,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     height: u32
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `can_hold` is never used
[INFO] [stdout]   --> libs/rust/math/src/lib.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Rectangle {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 11 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `internal_adder` is never used
[INFO] [stdout]   --> libs/rust/math/src/lib.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn internal_adder(a: i32, b: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> libs/rust/math/src/lib.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct Guess {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 39 |     value: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `value` and `children` are never read
[INFO] [stdout]   --> apps/rust/smart_pointers/src/reference_cycle.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct Node {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 48 |     value: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 49 |     parent: RefCell<Weak<Node>>,
[INFO] [stdout] 50 |     children: RefCell<Vec<Rc<Node>>>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `seasonal_fruit` is never read
[INFO] [stdout]  --> apps/rust/lib/src/restaurant.rs:3:3
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Breakefast {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 2 |   pub toast: String,
[INFO] [stdout] 3 |   seasonal_fruit: String
[INFO] [stdout]   |   ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             x += 1;
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:28:36
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let add_one_closure = |mut x| {
[INFO] [stdout]    |                                    ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut num_red = 0;
[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: variable does not need to be mutable
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut num_blue = 0;
[INFO] [stdout]    |             ----^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shoes_in_size` is never used
[INFO] [stdout]  --> apps/rust/iterators_n_closures/src/shoes_company.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn shoes_in_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling _rust_testing v0.1.0 (/opt/rustwide/workdir/apps/rust/testing)
[INFO] [stderr]    Compiling _rust_minigrep v0.1.0 (/opt/rustwide/workdir/apps/rust/minigrep)
[INFO] [stderr]    Compiling _rust_lib v0.1.0 (/opt/rustwide/workdir/apps/rust/lib)
[INFO] [stderr]    Compiling _rust_generics v0.1.0 (/opt/rustwide/workdir/apps/rust/generics)
[INFO] [stderr]    Compiling _rust_oop v0.1.0 (/opt/rustwide/workdir/apps/rust/oop)
[INFO] [stderr]    Compiling _rust_ds v0.1.0 (/opt/rustwide/workdir/apps/rust/ds)
[INFO] [stderr]    Compiling _rust_patterns_matching v0.1.0 (/opt/rustwide/workdir/apps/rust/patterns_matching)
[INFO] [stderr]    Compiling _rust_smart_pointers v0.1.0 (/opt/rustwide/workdir/apps/rust/smart_pointers)
[INFO] [stderr]    Compiling _rust_web_server v0.1.0 (/opt/rustwide/workdir/apps/rust/web_server)
[INFO] [stderr]    Compiling _rust_concurrency v0.1.0 (/opt/rustwide/workdir/apps/rust/concurrency)
[INFO] [stderr]    Compiling _rust_iterators_n_closures v0.1.0 (/opt/rustwide/workdir/apps/rust/iterators_n_closures)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> apps/rust/patterns_matching/src/main.rs:90:6
[INFO] [stdout]    |
[INFO] [stdout] 90 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> apps/rust/smart_pointers/src/main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let b = Cons(3, Rc::clone(&a));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> apps/rust/smart_pointers/src/main.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let c = Cons(4, Rc::clone(&a));
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `seasonal_fruit` is never read
[INFO] [stdout]  --> apps/rust/lib/src/restaurant.rs:3:3
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Breakefast {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 2 |   pub toast: String,
[INFO] [stdout] 3 |   seasonal_fruit: String
[INFO] [stdout]   |   ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::prelude::v1`
[INFO] [stdout]  --> apps/rust/iterators_n_closures/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::prelude::v1;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Rgb` is never constructed
[INFO] [stdout]   --> apps/rust/patterns_matching/src/main.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |     enum Color {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] 81 |         Rgb(i32, i32, i32),
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, and `Write` are never constructed
[INFO] [stdout]   --> apps/rust/patterns_matching/src/main.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     enum Message {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] 86 |         Quit,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 87 |         Move { x: i32, y: i32 },
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 88 |         Write(String),
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `y` and `z` are never read
[INFO] [stdout]    --> apps/rust/patterns_matching/src/main.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     struct Point {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 135 |         x: i32,
[INFO] [stdout] 136 |         y: i32,
[INFO] [stdout]     |         ^
[INFO] [stdout] 137 |         z: i32,
[INFO] [stdout]     |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling _rust_structs v0.1.0 (/opt/rustwide/workdir/apps/rust/structs)
[INFO] [stderr]    Compiling _rust_errors v0.1.0 (/opt/rustwide/workdir/apps/rust/errors)
[INFO] [stderr]    Compiling _rust_slice v0.1.0 (/opt/rustwide/workdir/apps/rust/slice)
[INFO] [stderr]    Compiling _rust_enums v0.1.0 (/opt/rustwide/workdir/apps/rust/enums)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling _rust_ownership_mistakes v0.1.0 (/opt/rustwide/workdir/apps/rust/ownership_mistakes)
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling _rust_math v0.1.0 (/opt/rustwide/workdir/libs/rust/math)
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed
[INFO] [stdout]   --> apps/rust/enums/src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum Message {
[INFO] [stdout]    |      ------- variants in this enum
[INFO] [stdout] 12 |     Quit,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 13 |     Move { x: i32, y: i32},
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     Write(String),
[INFO] [stdout] 15 |     ChangeColor(i32, i32, i32)
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> libs/rust/math/src/lib.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct Guess {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 39 |     value: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             x += 1;
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:28:36
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let add_one_closure = |mut x| {
[INFO] [stdout]    |                                    ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut num_red = 0;
[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: variable does not need to be mutable
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut num_blue = 0;
[INFO] [stdout]    |             ----^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `value` and `children` are never read
[INFO] [stdout]   --> apps/rust/smart_pointers/src/reference_cycle.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct Node {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 48 |     value: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 49 |     parent: RefCell<Weak<Node>>,
[INFO] [stdout] 50 |     children: RefCell<Vec<Rc<Node>>>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "c2ce9b8dd6112016233c1a54a7b0a6a99ab9e4d5dd5e6f705344d4cede7727f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2ce9b8dd6112016233c1a54a7b0a6a99ab9e4d5dd5e6f705344d4cede7727f7", kill_on_drop: false }`
[INFO] [stdout] c2ce9b8dd6112016233c1a54a7b0a6a99ab9e4d5dd5e6f705344d4cede7727f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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" "+1.76.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5024ac0940cc835388264b4e2dc56e421120ef77ab6b0e93050348f1f8eb96d7
[INFO] running `Command { std: "docker" "start" "-a" "5024ac0940cc835388264b4e2dc56e421120ef77ab6b0e93050348f1f8eb96d7", kill_on_drop: false }`
[INFO] [stderr] warning: fields `width` and `height` are never read
[INFO] [stderr]  --> libs/rust/math/src/lib.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Rectangle {
[INFO] [stderr]   |        --------- fields in this struct
[INFO] [stderr] 6 |     width: u32,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 7 |     height: u32
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `can_hold` is never used
[INFO] [stderr]   --> libs/rust/math/src/lib.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | impl Rectangle {
[INFO] [stderr]    | -------------- method in this implementation
[INFO] [stderr] 11 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `internal_adder` is never used
[INFO] [stderr]   --> libs/rust/math/src/lib.rs:34:4
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn internal_adder(a: i32, b: i32) -> i32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `value` is never read
[INFO] [stderr]   --> libs/rust/math/src/lib.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub struct Guess {
[INFO] [stderr]    |            ----- field in this struct
[INFO] [stderr] 39 |     value: i32,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `_rust_math` (lib) generated 4 warnings
[INFO] [stderr] warning: value assigned to `x` is never read
[INFO] [stderr]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |             x += 1;
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:28:36
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let add_one_closure = |mut x| {
[INFO] [stderr]    |                                    ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let mut num_red = 0;
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let mut num_blue = 0;
[INFO] [stderr]    |             ----^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function `shoes_in_size` is never used
[INFO] [stderr]  --> apps/rust/iterators_n_closures/src/shoes_company.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn shoes_in_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stderr]   |    ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `seasonal_fruit` is never read
[INFO] [stderr]  --> apps/rust/lib/src/restaurant.rs:3:3
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Breakefast {
[INFO] [stderr]   |            ---------- field in this struct
[INFO] [stderr] 2 |   pub toast: String,
[INFO] [stderr] 3 |   seasonal_fruit: String
[INFO] [stderr]   |   ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `value` and `children` are never read
[INFO] [stderr]   --> apps/rust/smart_pointers/src/reference_cycle.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 47 | struct Node {
[INFO] [stderr]    |        ---- fields in this struct
[INFO] [stderr] 48 |     value: i32,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 49 |     parent: RefCell<Weak<Node>>,
[INFO] [stderr] 50 |     children: RefCell<Vec<Rc<Node>>>,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `value` is never read
[INFO] [stderr]   --> libs/rust/math/src/lib.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub struct Guess {
[INFO] [stderr]    |            ----- field in this struct
[INFO] [stderr] 39 |     value: i32,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> apps/rust/patterns_matching/src/main.rs:90:6
[INFO] [stderr]    |
[INFO] [stderr] 90 |     };
[INFO] [stderr]    |      ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Rgb` is never constructed
[INFO] [stderr]   --> apps/rust/patterns_matching/src/main.rs:81:9
[INFO] [stderr]    |
[INFO] [stderr] 80 |     enum Color {
[INFO] [stderr]    |          ----- variant in this enum
[INFO] [stderr] 81 |         Rgb(i32, i32, i32),
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Quit`, `Move`, and `Write` are never constructed
[INFO] [stderr]   --> apps/rust/patterns_matching/src/main.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |     enum Message {
[INFO] [stderr]    |          ------- variants in this enum
[INFO] [stderr] 86 |         Quit,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 87 |         Move { x: i32, y: i32 },
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 88 |         Write(String),
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `y` and `z` are never read
[INFO] [stderr]    --> apps/rust/patterns_matching/src/main.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 134 |     struct Point {
[INFO] [stderr]     |            ----- fields in this struct
[INFO] [stderr] 135 |         x: i32,
[INFO] [stderr] 136 |         y: i32,
[INFO] [stderr]     |         ^
[INFO] [stderr] 137 |         z: i32,
[INFO] [stderr]     |         ^
[INFO] [stderr] 
[INFO] [stderr] warning: `_rust_iterators_n_closures` (lib) generated 5 warnings (run `cargo fix --lib -p _rust_iterators_n_closures` to apply 3 suggestions)
[INFO] [stderr] warning: `_rust_lib` (lib) generated 1 warning
[INFO] [stderr] warning: `_rust_smart_pointers` (lib) generated 1 warning
[INFO] [stderr] warning: `_rust_math` (lib test) generated 1 warning
[INFO] [stderr] warning: `_rust_patterns_matching` (bin "_rust_patterns_matching" test) generated 4 warnings
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> apps/rust/smart_pointers/src/main.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |     let b = Cons(3, Rc::clone(&a));
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> apps/rust/smart_pointers/src/main.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let c = Cons(4, Rc::clone(&a));
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: `_rust_smart_pointers` (bin "_rust_smart_pointers" test) generated 2 warnings (run `cargo fix --bin "_rust_smart_pointers" --tests` to apply 2 suggestions)
[INFO] [stderr] warning: unused import: `core::prelude::v1`
[INFO] [stderr]  --> apps/rust/iterators_n_closures/src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::prelude::v1;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed
[INFO] [stderr]   --> apps/rust/enums/src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | enum Message {
[INFO] [stderr]    |      ------- variants in this enum
[INFO] [stderr] 12 |     Quit,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 13 |     Move { x: i32, y: i32},
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 14 |     Write(String),
[INFO] [stderr] 15 |     ChangeColor(i32, i32, i32)
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `_rust_iterators_n_closures` (bin "_rust_iterators_n_closures" test) generated 1 warning (run `cargo fix --bin "_rust_iterators_n_closures" --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `_rust_lib` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: `_rust_iterators_n_closures` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr] warning: `_rust_enums` (bin "_rust_enums" test) generated 1 warning
[INFO] [stderr] warning: `_rust_smart_pointers` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/_rust_concurrency-ef0a8477ddff5fbf)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/_rust_concurrency-eb1d3bec7a467d5c)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/_rust_ds-5779c5cbb97e3dba)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/_rust_enums-2ed8a1ebf34b6727)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/_rust_errors-674c7441b6163b55)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/_rust_generics-7fcbdc2abf8c8e10)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/_rust_generics-1456bbbcd5e6e276)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/_rust_iterators_n_closures-3cb125a3f10756ab)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test shoes_company::tests::filters_by_size ... ok
[INFO] [stdout] test t_shirt_company::tests::should_giveaway_more_stocked ... ok
[INFO] [stdout] test t_shirt_company::tests::should_giveaway_user_prefered ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 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/debug/deps/_rust_iterators_n_closures-2cd301485b109129)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/_rust_lib-e86325e30d59b9f6)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/_rust_lib-b5218403543f14d7)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/_rust_math-58f95b9eee8451a8)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::greeting_contains_name ... ignored
[INFO] [stdout] test tests::it_adds_two ... ok
[INFO] [stdout] test tests::larger_can_hold_smaller ... ok
[INFO] [stdout] test tests::smaller_cannot_hold_larger ... ok
[INFO] [stdout] test tests::should_call_internal_adder ... ok
[INFO] [stdout] test tests::greater_than_100 - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/_rust_minigrep-ee460308d1c1e2f3)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::case_sensitive ... ok
[INFO] [stdout] test tests::case_insensitive ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::case_insensitive stdout ----
[INFO] [stdout] thread 'tests::case_insensitive' panicked at apps/rust/minigrep/src/lib.rs:83:9:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: ["Rust:", "Trust me."]
[INFO] [stdout]  right: ["Trust me."]
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5579ba34c4d6 - std::backtrace_rs::backtrace::libunwind::trace::hbee8a7973eeb6c93
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x5579ba34c4d6 - std::backtrace_rs::backtrace::trace_unsynchronized::hc8ac75eea3aa6899
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5579ba34c4d6 - std::sys_common::backtrace::_print_fmt::hc7f3e3b5298b1083
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x5579ba34c4d6 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hbb235daedd7c6190
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x5579ba375ae0 - core::fmt::rt::Argument::fmt::h76c38a80d925a410
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x5579ba375ae0 - core::fmt::write::h3ed6aeaa977c8e45
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x5579ba349f3f - std::io::Write::write_fmt::h1299aa7741865f2b
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/io/mod.rs:1810:15
[INFO] [stdout]    7:     0x5579ba34c2b4 - std::sys_common::backtrace::_print::h5d645a07e0fcfdbb
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x5579ba34c2b4 - std::sys_common::backtrace::print::h85035a511aafe7a8
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x5579ba34e027 - std::panicking::default_hook::{{closure}}::hcce8cea212785a25
[INFO] [stdout]   10:     0x5579ba34dd0d - std::panicking::default_hook::hf5fcb0f213fe709a
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x5579ba31df07 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h60265c2dfa87ee34
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/alloc/src/boxed.rs:2029:9
[INFO] [stdout]   12:     0x5579ba31df07 - test::test_main::{{closure}}::h77865bd3127078c6
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x5579ba34e646 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hbc5ccf4eb663e1e5
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/alloc/src/boxed.rs:2029:9
[INFO] [stdout]   14:     0x5579ba34e646 - std::panicking::rust_panic_with_hook::h095fccf1dc9379ee
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x5579ba34e392 - std::panicking::begin_panic_handler::{{closure}}::h032ba12139b353db
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:657:13
[INFO] [stdout]   16:     0x5579ba34c9d6 - std::sys_common::backtrace::__rust_end_short_backtrace::h9259bc2ff8fd0f76
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   17:     0x5579ba34e0f0 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x5579ba2ddcd5 - core::panicking::panic_fmt::h784f20a50eaab275
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x5579ba2de10b - core::panicking::assert_failed_inner::hbf94b40c37b92af0
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/panicking.rs:342:17
[INFO] [stdout]   20:     0x5579ba2e8aee - core::panicking::assert_failed::he7363904db0a4a55
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/panicking.rs:297:5
[INFO] [stdout]   21:     0x5579ba2e337a - _rust_minigrep::tests::case_insensitive::hded497b8674a90d4
[INFO] [stdout]                                at /opt/rustwide/workdir/apps/rust/minigrep/src/lib.rs:83:9
[INFO] [stdout]   22:     0x5579ba2e31c7 - _rust_minigrep::tests::case_insensitive::{{closure}}::h92040f03c0532cbd
[INFO] [stdout]                                at /opt/rustwide/workdir/apps/rust/minigrep/src/lib.rs:75:26
[INFO] [stdout]   23:     0x5579ba2e6cf6 - core::ops::function::FnOnce::call_once::h77bb644f77fbca4e
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5579ba3237df - core::ops::function::FnOnce::call_once::h8dc6907944022cf6
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5579ba3237df - test::__rust_begin_short_backtrace::haae1a87433f1efb3
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:627:18
[INFO] [stdout]   26:     0x5579ba322561 - test::run_test_in_process::{{closure}}::h8c7decfa7c14e152
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:650:60
[INFO] [stdout]   27:     0x5579ba322561 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h19e6ff056d9d21e9
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x5579ba322561 - std::panicking::try::do_call::h89c848fcaa37c035
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:552:40
[INFO] [stdout]   29:     0x5579ba322561 - std::panicking::try::h57ab3dc74e2839b8
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:516:19
[INFO] [stdout]   30:     0x5579ba322561 - std::panic::catch_unwind::hfb6a1b1abc120fb9
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panic.rs:142:14
[INFO] [stdout]   31:     0x5579ba322561 - test::run_test_in_process::h5ae2f9875edd562d
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:650:27
[INFO] [stdout]   32:     0x5579ba322561 - test::run_test::{{closure}}::h35d7300d8928a067
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:573:43
[INFO] [stdout]   33:     0x5579ba2e9896 - test::run_test::{{closure}}::h7525ced405d23d1b
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:601:41
[INFO] [stdout]   34:     0x5579ba2e9896 - std::sys_common::backtrace::__rust_begin_short_backtrace::h4e7db78ce05afad8
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stdout]   35:     0x5579ba2ee8f7 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hcfbcb64f1a1b3482
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   36:     0x5579ba2ee8f7 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9d89c5c4108bd689
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x5579ba2ee8f7 - std::panicking::try::do_call::h8a4869bc94ec50c9
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:552:40
[INFO] [stdout]   38:     0x5579ba2ee8f7 - std::panicking::try::h9a576f20ff81ac30
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:516:19
[INFO] [stdout]   39:     0x5579ba2ee8f7 - std::panic::catch_unwind::hbcb4e3f860ef9830
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panic.rs:142:14
[INFO] [stdout]   40:     0x5579ba2ee8f7 - std::thread::Builder::spawn_unchecked_::{{closure}}::h93c79a6be1505948
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   41:     0x5579ba2ee8f7 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h426d96740c81bdaf
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5579ba3530f5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h12de4fc57affb195
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]   43:     0x5579ba3530f5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h3c619f45059d5cf1
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]   44:     0x5579ba3530f5 - std::sys::unix::thread::Thread::new::thread_start::hbac657605e4b7389
[INFO] [stdout]                                at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   45:     0x7f5bec2edac3 - <unknown>
[INFO] [stdout]   46:     0x7f5bec37ebf4 - __clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::case_insensitive
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `-p _rust_minigrep --lib`
[INFO] running `Command { std: "docker" "inspect" "5024ac0940cc835388264b4e2dc56e421120ef77ab6b0e93050348f1f8eb96d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5024ac0940cc835388264b4e2dc56e421120ef77ab6b0e93050348f1f8eb96d7", kill_on_drop: false }`
[INFO] [stdout] 5024ac0940cc835388264b4e2dc56e421120ef77ab6b0e93050348f1f8eb96d7
[INFO] testing iamseki/studies 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%2Fiamseki%2Fstudies" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iamseki/studies 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] removed /workspace/builds/worker-7-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/iamseki/studies
[INFO] finished tweaking git repo https://github.com/iamseki/studies
[INFO] tweaked toml for git repo https://github.com/iamseki/studies written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/iamseki/studies 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 08db66555aa82160b41bdfd0b816c27a43ed624e80fa2d491f0a8c18cd4ce0cc
[INFO] running `Command { std: "docker" "start" "-a" "08db66555aa82160b41bdfd0b816c27a43ed624e80fa2d491f0a8c18cd4ce0cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08db66555aa82160b41bdfd0b816c27a43ed624e80fa2d491f0a8c18cd4ce0cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08db66555aa82160b41bdfd0b816c27a43ed624e80fa2d491f0a8c18cd4ce0cc", kill_on_drop: false }`
[INFO] [stdout] 08db66555aa82160b41bdfd0b816c27a43ed624e80fa2d491f0a8c18cd4ce0cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8cfa9df0053bba073c82b8ff06684094b1f20030630bcbf086cd645cd890d8ce
[INFO] running `Command { std: "docker" "start" "-a" "8cfa9df0053bba073c82b8ff06684094b1f20030630bcbf086cd645cd890d8ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling _rust_math v0.1.0 (/opt/rustwide/workdir/libs/rust/math)
[INFO] [stderr]    Compiling _rust_minigrep v0.1.0 (/opt/rustwide/workdir/apps/rust/minigrep)
[INFO] [stderr]    Compiling _rust_web_server v0.1.0 (/opt/rustwide/workdir/apps/rust/web_server)
[INFO] [stderr]    Compiling _rust_smart_pointers v0.1.0 (/opt/rustwide/workdir/apps/rust/smart_pointers)
[INFO] [stderr]    Compiling _rust_generics v0.1.0 (/opt/rustwide/workdir/apps/rust/generics)
[INFO] [stderr]    Compiling _rust_iterators_n_closures v0.1.0 (/opt/rustwide/workdir/apps/rust/iterators_n_closures)
[INFO] [stderr]    Compiling _rust_concurrency v0.1.0 (/opt/rustwide/workdir/apps/rust/concurrency)
[INFO] [stderr]    Compiling _rust_lib v0.1.0 (/opt/rustwide/workdir/apps/rust/lib)
[INFO] [stderr]    Compiling _rust_ds v0.1.0 (/opt/rustwide/workdir/apps/rust/ds)
[INFO] [stderr]    Compiling _rust_ownership_mistakes v0.1.0 (/opt/rustwide/workdir/apps/rust/ownership_mistakes)
[INFO] [stderr]    Compiling _rust_errors v0.1.0 (/opt/rustwide/workdir/apps/rust/errors)
[INFO] [stderr]    Compiling _rust_enums v0.1.0 (/opt/rustwide/workdir/apps/rust/enums)
[INFO] [stderr]    Compiling _rust_patterns_matching v0.1.0 (/opt/rustwide/workdir/apps/rust/patterns_matching)
[INFO] [stderr]    Compiling _rust_structs v0.1.0 (/opt/rustwide/workdir/apps/rust/structs)
[INFO] [stderr]    Compiling _rust_oop v0.1.0 (/opt/rustwide/workdir/apps/rust/oop)
[INFO] [stderr]    Compiling _rust_slice v0.1.0 (/opt/rustwide/workdir/apps/rust/slice)
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]  --> libs/rust/math/src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Rectangle {
[INFO] [stdout]   |        --------- fields in this struct
[INFO] [stdout] 6 |     width: u32,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     height: u32
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `can_hold` is never used
[INFO] [stdout]   --> libs/rust/math/src/lib.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Rectangle {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 11 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `internal_adder` is never used
[INFO] [stdout]   --> libs/rust/math/src/lib.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn internal_adder(a: i32, b: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> libs/rust/math/src/lib.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct Guess {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 39 |     value: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `seasonal_fruit` is never read
[INFO] [stdout]  --> apps/rust/lib/src/restaurant.rs:3:3
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Breakefast {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 2 |   pub toast: String,
[INFO] [stdout] 3 |   seasonal_fruit: String
[INFO] [stdout]   |   ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> apps/rust/patterns_matching/src/main.rs:90:6
[INFO] [stdout]    |
[INFO] [stdout] 90 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> apps/rust/smart_pointers/src/reference_cycle.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Cons(i32, RefCell<Rc<List>>),
[INFO] [stdout]    |     ---- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Cons((), RefCell<Rc<List>>),
[INFO] [stdout]    |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `value` and `children` are never read
[INFO] [stdout]   --> apps/rust/smart_pointers/src/reference_cycle.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct Node {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 48 |     value: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 49 |     parent: RefCell<Weak<Node>>,
[INFO] [stdout] 50 |     children: RefCell<Vec<Rc<Node>>>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             x += 1;
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:28:36
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let add_one_closure = |mut x| {
[INFO] [stdout]    |                                    ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read
[INFO] [stdout]  --> apps/rust/enums/src/main.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 |     V4(u8, u8, u8, u8),
[INFO] [stdout]   |     -- ^^  ^^  ^^  ^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     fields in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]   |
[INFO] [stdout] 7 |     V4((), (), (), ()),
[INFO] [stdout]   |        ~~  ~~  ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut num_red = 0;
[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: variable does not need to be mutable
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut num_blue = 0;
[INFO] [stdout]    |             ----^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> apps/rust/enums/src/main.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     V6(String),
[INFO] [stdout]   |     -- ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 |     V6(()),
[INFO] [stdout]   |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> apps/rust/enums/src/main.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Write(String),
[INFO] [stdout]    |     ----- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Write(()),
[INFO] [stdout]    |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed
[INFO] [stdout]   --> apps/rust/enums/src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum Message {
[INFO] [stdout]    |      ------- variants in this enum
[INFO] [stdout] 12 |     Quit,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 13 |     Move { x: i32, y: i32},
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     Write(String),
[INFO] [stdout] 15 |     ChangeColor(i32, i32, i32)
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shoes_in_size` is never used
[INFO] [stdout]  --> apps/rust/iterators_n_closures/src/shoes_company.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn shoes_in_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Rgb` is never constructed
[INFO] [stdout]   --> apps/rust/patterns_matching/src/main.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |     enum Color {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] 81 |         Rgb(i32, i32, i32),
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, and `Write` are never constructed
[INFO] [stdout]   --> apps/rust/patterns_matching/src/main.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     enum Message {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] 86 |         Quit,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 87 |         Move { x: i32, y: i32 },
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 88 |         Write(String),
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `y` and `z` are never read
[INFO] [stdout]    --> apps/rust/patterns_matching/src/main.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     struct Point {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 135 |         x: i32,
[INFO] [stdout] 136 |         y: i32,
[INFO] [stdout]     |         ^
[INFO] [stdout] 137 |         z: i32,
[INFO] [stdout]     |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling _rust_testing v0.1.0 (/opt/rustwide/workdir/apps/rust/testing)
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> apps/rust/ds/src/main.rs:61:13
[INFO] [stdout]    |
[INFO] [stdout] 61 |         Int(i32),
[INFO] [stdout]    |         --- ^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 61 |         Int(()),
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> apps/rust/ds/src/main.rs:62:15
[INFO] [stdout]    |
[INFO] [stdout] 62 |         Float(f64),
[INFO] [stdout]    |         ----- ^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 62 |         Float(()),
[INFO] [stdout]    |               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> apps/rust/ds/src/main.rs:63:14
[INFO] [stdout]    |
[INFO] [stdout] 63 |         Text(String)
[INFO] [stdout]    |         ---- ^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 63 |         Text(())
[INFO] [stdout]    |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]   --> apps/rust/generics/src/main.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     struct Point<T, U> {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 66 |         x: T,
[INFO] [stdout]    |         ^
[INFO] [stdout] 67 |         y: U,
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Point` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> apps/rust/smart_pointers/src/main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let b = Cons(3, Rc::clone(&a));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> apps/rust/smart_pointers/src/main.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let c = Cons(4, Rc::clone(&a));
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::prelude::v1`
[INFO] [stdout]  --> apps/rust/iterators_n_closures/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::prelude::v1;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "8cfa9df0053bba073c82b8ff06684094b1f20030630bcbf086cd645cd890d8ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cfa9df0053bba073c82b8ff06684094b1f20030630bcbf086cd645cd890d8ce", kill_on_drop: false }`
[INFO] [stdout] 8cfa9df0053bba073c82b8ff06684094b1f20030630bcbf086cd645cd890d8ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] eb02ab3c6728fadfd306726538e93336da7e555ea5194c9be21180865e6ee1b7
[INFO] running `Command { std: "docker" "start" "-a" "eb02ab3c6728fadfd306726538e93336da7e555ea5194c9be21180865e6ee1b7", kill_on_drop: false }`
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]  --> libs/rust/math/src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Rectangle {
[INFO] [stdout]   |        --------- fields in this struct
[INFO] [stdout] 6 |     width: u32,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     height: u32
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `can_hold` is never used
[INFO] [stdout]   --> libs/rust/math/src/lib.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Rectangle {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 11 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `internal_adder` is never used
[INFO] [stdout]   --> libs/rust/math/src/lib.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn internal_adder(a: i32, b: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> libs/rust/math/src/lib.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct Guess {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 39 |     value: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> apps/rust/smart_pointers/src/reference_cycle.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Cons(i32, RefCell<Rc<List>>),
[INFO] [stdout]    |     ---- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Cons((), RefCell<Rc<List>>),
[INFO] [stdout]    |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `value` and `children` are never read
[INFO] [stdout]   --> apps/rust/smart_pointers/src/reference_cycle.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct Node {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 48 |     value: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 49 |     parent: RefCell<Weak<Node>>,
[INFO] [stdout] 50 |     children: RefCell<Vec<Rc<Node>>>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `seasonal_fruit` is never read
[INFO] [stdout]  --> apps/rust/lib/src/restaurant.rs:3:3
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Breakefast {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 2 |   pub toast: String,
[INFO] [stdout] 3 |   seasonal_fruit: String
[INFO] [stdout]   |   ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             x += 1;
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:28:36
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let add_one_closure = |mut x| {
[INFO] [stdout]    |                                    ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut num_red = 0;
[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]    Compiling _rust_testing v0.1.0 (/opt/rustwide/workdir/apps/rust/testing)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut num_blue = 0;
[INFO] [stdout]    |             ----^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling _rust_minigrep v0.1.0 (/opt/rustwide/workdir/apps/rust/minigrep)
[INFO] [stdout] warning: function `shoes_in_size` is never used
[INFO] [stdout]  --> apps/rust/iterators_n_closures/src/shoes_company.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn shoes_in_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling _rust_math v0.1.0 (/opt/rustwide/workdir/libs/rust/math)
[INFO] [stderr]    Compiling _rust_oop v0.1.0 (/opt/rustwide/workdir/apps/rust/oop)
[INFO] [stderr]    Compiling _rust_patterns_matching v0.1.0 (/opt/rustwide/workdir/apps/rust/patterns_matching)
[INFO] [stderr]    Compiling _rust_structs v0.1.0 (/opt/rustwide/workdir/apps/rust/structs)
[INFO] [stderr]    Compiling _rust_ds v0.1.0 (/opt/rustwide/workdir/apps/rust/ds)
[INFO] [stderr]    Compiling _rust_web_server v0.1.0 (/opt/rustwide/workdir/apps/rust/web_server)
[INFO] [stderr]    Compiling _rust_iterators_n_closures v0.1.0 (/opt/rustwide/workdir/apps/rust/iterators_n_closures)
[INFO] [stderr]    Compiling _rust_generics v0.1.0 (/opt/rustwide/workdir/apps/rust/generics)
[INFO] [stderr]    Compiling _rust_smart_pointers v0.1.0 (/opt/rustwide/workdir/apps/rust/smart_pointers)
[INFO] [stderr]    Compiling _rust_concurrency v0.1.0 (/opt/rustwide/workdir/apps/rust/concurrency)
[INFO] [stderr]    Compiling _rust_lib v0.1.0 (/opt/rustwide/workdir/apps/rust/lib)
[INFO] [stdout] warning: unused import: `core::prelude::v1`
[INFO] [stdout]  --> apps/rust/iterators_n_closures/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::prelude::v1;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> apps/rust/patterns_matching/src/main.rs:90:6
[INFO] [stdout]    |
[INFO] [stdout] 90 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> libs/rust/math/src/lib.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct Guess {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 39 |     value: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> apps/rust/smart_pointers/src/main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let b = Cons(3, Rc::clone(&a));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> apps/rust/smart_pointers/src/main.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let c = Cons(4, Rc::clone(&a));
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Rgb` is never constructed
[INFO] [stdout]   --> apps/rust/patterns_matching/src/main.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |     enum Color {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] 81 |         Rgb(i32, i32, i32),
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, and `Write` are never constructed
[INFO] [stdout]   --> apps/rust/patterns_matching/src/main.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     enum Message {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] 86 |         Quit,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 87 |         Move { x: i32, y: i32 },
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 88 |         Write(String),
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `y` and `z` are never read
[INFO] [stdout]    --> apps/rust/patterns_matching/src/main.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |     struct Point {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 135 |         x: i32,
[INFO] [stdout] 136 |         y: i32,
[INFO] [stdout]     |         ^
[INFO] [stdout] 137 |         z: i32,
[INFO] [stdout]     |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling _rust_errors v0.1.0 (/opt/rustwide/workdir/apps/rust/errors)
[INFO] [stderr]    Compiling _rust_enums v0.1.0 (/opt/rustwide/workdir/apps/rust/enums)
[INFO] [stderr]    Compiling _rust_slice v0.1.0 (/opt/rustwide/workdir/apps/rust/slice)
[INFO] [stderr]    Compiling _rust_ownership_mistakes v0.1.0 (/opt/rustwide/workdir/apps/rust/ownership_mistakes)
[INFO] [stdout] warning: field `seasonal_fruit` is never read
[INFO] [stdout]  --> apps/rust/lib/src/restaurant.rs:3:3
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Breakefast {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 2 |   pub toast: String,
[INFO] [stdout] 3 |   seasonal_fruit: String
[INFO] [stdout]   |   ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read
[INFO] [stdout]  --> apps/rust/enums/src/main.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 |     V4(u8, u8, u8, u8),
[INFO] [stdout]   |     -- ^^  ^^  ^^  ^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     fields in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]   |
[INFO] [stdout] 7 |     V4((), (), (), ()),
[INFO] [stdout]   |        ~~  ~~  ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> apps/rust/enums/src/main.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     V6(String),
[INFO] [stdout]   |     -- ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 |     V6(()),
[INFO] [stdout]   |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> apps/rust/enums/src/main.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Write(String),
[INFO] [stdout]    |     ----- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Write(()),
[INFO] [stdout]    |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> apps/rust/smart_pointers/src/reference_cycle.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Cons(i32, RefCell<Rc<List>>),
[INFO] [stdout]    |     ---- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Cons((), RefCell<Rc<List>>),
[INFO] [stdout]    |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed
[INFO] [stdout]   --> apps/rust/enums/src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum Message {
[INFO] [stdout]    |      ------- variants in this enum
[INFO] [stdout] 12 |     Quit,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 13 |     Move { x: i32, y: i32},
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     Write(String),
[INFO] [stdout] 15 |     ChangeColor(i32, i32, i32)
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `value` and `children` are never read
[INFO] [stdout]   --> apps/rust/smart_pointers/src/reference_cycle.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct Node {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 48 |     value: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 49 |     parent: RefCell<Weak<Node>>,
[INFO] [stdout] 50 |     children: RefCell<Vec<Rc<Node>>>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             x += 1;
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:28:36
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let add_one_closure = |mut x| {
[INFO] [stdout]    |                                    ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut num_red = 0;
[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: variable does not need to be mutable
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut num_blue = 0;
[INFO] [stdout]    |             ----^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "eb02ab3c6728fadfd306726538e93336da7e555ea5194c9be21180865e6ee1b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb02ab3c6728fadfd306726538e93336da7e555ea5194c9be21180865e6ee1b7", kill_on_drop: false }`
[INFO] [stdout] eb02ab3c6728fadfd306726538e93336da7e555ea5194c9be21180865e6ee1b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 0120bc5f8fc2c43040f0e733ab498f6d3ea30ee819cfe6576162a1f0a0265783
[INFO] running `Command { std: "docker" "start" "-a" "0120bc5f8fc2c43040f0e733ab498f6d3ea30ee819cfe6576162a1f0a0265783", kill_on_drop: false }`
[INFO] [stderr] warning: fields `width` and `height` are never read
[INFO] [stderr]  --> libs/rust/math/src/lib.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Rectangle {
[INFO] [stderr]   |        --------- fields in this struct
[INFO] [stderr] 6 |     width: u32,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 7 |     height: u32
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `can_hold` is never used
[INFO] [stderr]   --> libs/rust/math/src/lib.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | impl Rectangle {
[INFO] [stderr]    | -------------- method in this implementation
[INFO] [stderr] 11 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `internal_adder` is never used
[INFO] [stderr]   --> libs/rust/math/src/lib.rs:34:4
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn internal_adder(a: i32, b: i32) -> i32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `value` is never read
[INFO] [stderr]   --> libs/rust/math/src/lib.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub struct Guess {
[INFO] [stderr]    |            ----- field in this struct
[INFO] [stderr] 39 |     value: i32,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `_rust_math` (lib) generated 4 warnings
[INFO] [stderr] warning: value assigned to `x` is never read
[INFO] [stderr]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |             x += 1;
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:28:36
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let add_one_closure = |mut x| {
[INFO] [stderr]    |                                    ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let mut num_red = 0;
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let mut num_blue = 0;
[INFO] [stderr]    |             ----^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function `shoes_in_size` is never used
[INFO] [stderr]  --> apps/rust/iterators_n_closures/src/shoes_company.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn shoes_in_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stderr]   |    ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> apps/rust/smart_pointers/src/reference_cycle.rs:10:10
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Cons(i32, RefCell<Rc<List>>),
[INFO] [stderr]    |     ---- ^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Cons((), RefCell<Rc<List>>),
[INFO] [stderr]    |          ~~
[INFO] [stderr] 
[INFO] [stderr] warning: fields `value` and `children` are never read
[INFO] [stderr]   --> apps/rust/smart_pointers/src/reference_cycle.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 47 | struct Node {
[INFO] [stderr]    |        ---- fields in this struct
[INFO] [stderr] 48 |     value: i32,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 49 |     parent: RefCell<Weak<Node>>,
[INFO] [stderr] 50 |     children: RefCell<Vec<Rc<Node>>>,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `seasonal_fruit` is never read
[INFO] [stderr]  --> apps/rust/lib/src/restaurant.rs:3:3
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Breakefast {
[INFO] [stderr]   |            ---------- field in this struct
[INFO] [stderr] 2 |   pub toast: String,
[INFO] [stderr] 3 |   seasonal_fruit: String
[INFO] [stderr]   |   ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `value` is never read
[INFO] [stderr]   --> libs/rust/math/src/lib.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub struct Guess {
[INFO] [stderr]    |            ----- field in this struct
[INFO] [stderr] 39 |     value: i32,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `_rust_iterators_n_closures` (lib) generated 5 warnings (run `cargo fix --lib -p _rust_iterators_n_closures` to apply 3 suggestions)
[INFO] [stderr] warning: `_rust_smart_pointers` (lib) generated 2 warnings
[INFO] [stderr] warning: `_rust_lib` (lib) generated 1 warning
[INFO] [stderr] warning: `_rust_iterators_n_closures` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr] warning: `_rust_math` (lib test) generated 1 warning
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> apps/rust/smart_pointers/src/main.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |     let b = Cons(3, Rc::clone(&a));
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> apps/rust/smart_pointers/src/main.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let c = Cons(4, Rc::clone(&a));
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: `_rust_smart_pointers` (bin "_rust_smart_pointers" test) generated 2 warnings (run `cargo fix --bin "_rust_smart_pointers" --tests` to apply 2 suggestions)
[INFO] [stderr] warning: unused import: `core::prelude::v1`
[INFO] [stderr]  --> apps/rust/iterators_n_closures/src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::prelude::v1;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> apps/rust/patterns_matching/src/main.rs:90:6
[INFO] [stderr]    |
[INFO] [stderr] 90 |     };
[INFO] [stderr]    |      ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Rgb` is never constructed
[INFO] [stderr]   --> apps/rust/patterns_matching/src/main.rs:81:9
[INFO] [stderr]    |
[INFO] [stderr] 80 |     enum Color {
[INFO] [stderr]    |          ----- variant in this enum
[INFO] [stderr] 81 |         Rgb(i32, i32, i32),
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Quit`, `Move`, and `Write` are never constructed
[INFO] [stderr]   --> apps/rust/patterns_matching/src/main.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |     enum Message {
[INFO] [stderr]    |          ------- variants in this enum
[INFO] [stderr] 86 |         Quit,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 87 |         Move { x: i32, y: i32 },
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 88 |         Write(String),
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `y` and `z` are never read
[INFO] [stderr]    --> apps/rust/patterns_matching/src/main.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 134 |     struct Point {
[INFO] [stderr]     |            ----- fields in this struct
[INFO] [stderr] 135 |         x: i32,
[INFO] [stderr] 136 |         y: i32,
[INFO] [stderr]     |         ^
[INFO] [stderr] 137 |         z: i32,
[INFO] [stderr]     |         ^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0`, `1`, `2`, and `3` are never read
[INFO] [stderr]  --> apps/rust/enums/src/main.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 |     V4(u8, u8, u8, u8),
[INFO] [stderr]   |     -- ^^  ^^  ^^  ^^
[INFO] [stderr]   |     |
[INFO] [stderr]   |     fields in this variant
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]   |
[INFO] [stderr] 7 |     V4((), (), (), ()),
[INFO] [stderr]   |        ~~  ~~  ~~  ~~
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]  --> apps/rust/enums/src/main.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 |     V6(String),
[INFO] [stderr]   |     -- ^^^^^^
[INFO] [stderr]   |     |
[INFO] [stderr]   |     field in this variant
[INFO] [stderr]   |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]   |
[INFO] [stderr] 8 |     V6(()),
[INFO] [stderr]   |        ~~
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> apps/rust/enums/src/main.rs:14:11
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Write(String),
[INFO] [stderr]    |     ----- ^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Write(()),
[INFO] [stderr]    |           ~~
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed
[INFO] [stderr]   --> apps/rust/enums/src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | enum Message {
[INFO] [stderr]    |      ------- variants in this enum
[INFO] [stderr] 12 |     Quit,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 13 |     Move { x: i32, y: i32},
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 14 |     Write(String),
[INFO] [stderr] 15 |     ChangeColor(i32, i32, i32)
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `_rust_iterators_n_closures` (bin "_rust_iterators_n_closures" test) generated 1 warning (run `cargo fix --bin "_rust_iterators_n_closures" --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `_rust_lib` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: `_rust_smart_pointers` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr] warning: `_rust_patterns_matching` (bin "_rust_patterns_matching" test) generated 4 warnings
[INFO] [stderr] warning: `_rust_enums` (bin "_rust_enums" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/_rust_concurrency-4415d325321aa86a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/_rust_concurrency-f38116a2a459a4d0)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/_rust_ds-f94bcb05e36306d9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/_rust_enums-2128ddb04af2e5ec)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/_rust_errors-7b665b191c975d04)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/_rust_generics-6c1b91e675699a74)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/_rust_generics-406b269e917e9b4d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/_rust_iterators_n_closures-398a92bc5d0691d8)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test shoes_company::tests::filters_by_size ... ok
[INFO] [stdout] test t_shirt_company::tests::should_giveaway_more_stocked ... ok
[INFO] [stdout] test t_shirt_company::tests::should_giveaway_user_prefered ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 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/debug/deps/_rust_iterators_n_closures-548462e11887a198)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/_rust_lib-29e654ecab9b19cd)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/_rust_lib-df9a07decb24774a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/_rust_math-65ffc06a4c74aa5f)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::greeting_contains_name ... ignored
[INFO] [stdout] test tests::it_adds_two ... ok
[INFO] [stdout] test tests::larger_can_hold_smaller ... ok
[INFO] [stdout] test tests::should_call_internal_adder ... ok
[INFO] [stdout] test tests::smaller_cannot_hold_larger ... ok
[INFO] [stdout] test tests::greater_than_100 - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/_rust_minigrep-c99266478690b6a9)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::case_sensitive ... ok
[INFO] [stdout] test tests::case_insensitive ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::case_insensitive stdout ----
[INFO] [stdout] thread 'tests::case_insensitive' panicked at apps/rust/minigrep/src/lib.rs:83:9:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: ["Rust:", "Trust me."]
[INFO] [stdout]  right: ["Trust me."]
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x561b1b4b3976 - std::backtrace_rs::backtrace::libunwind::trace::h140b6deb6a45c671
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x561b1b4b3976 - std::backtrace_rs::backtrace::trace_unsynchronized::h8450d7e4e9219aed
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x561b1b4b3976 - std::sys_common::backtrace::_print_fmt::hbd28e5e6c6fc3a3f
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x561b1b4b3976 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hb058f285768cf98e
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x561b1b4dcdb0 - core::fmt::rt::Argument::fmt::h87dec7a95127da24
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x561b1b4dcdb0 - core::fmt::write::h873f89a91a4832db
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x561b1b4b11cf - std::io::Write::write_fmt::h90f651e9e694a4bb
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/io/mod.rs:1846:15
[INFO] [stdout]    7:     0x561b1b4b3754 - std::sys_common::backtrace::_print::h7719d1529d9a9e13
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x561b1b4b3754 - std::sys_common::backtrace::print::haa3afbd0e7947108
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x561b1b4b54c7 - std::panicking::default_hook::{{closure}}::h10e3de2ec0eaff22
[INFO] [stdout]   10:     0x561b1b4b51ad - std::panicking::default_hook::hbdc1b1b7fe073dab
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x561b1b485097 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h20f7887d7cd0a330
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/alloc/src/boxed.rs:2029:9
[INFO] [stdout]   12:     0x561b1b485097 - test::test_main::{{closure}}::hc125a615957b5cb1
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x561b1b4b5ae6 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h8c19e0590f8443c4
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/alloc/src/boxed.rs:2029:9
[INFO] [stdout]   14:     0x561b1b4b5ae6 - std::panicking::rust_panic_with_hook::hb81692602460473d
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:785:13
[INFO] [stdout]   15:     0x561b1b4b5832 - std::panicking::begin_panic_handler::{{closure}}::h2470593aa2678e9c
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:659:13
[INFO] [stdout]   16:     0x561b1b4b3e76 - std::sys_common::backtrace::__rust_end_short_backtrace::h560bb50225b0562b
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   17:     0x561b1b4b5584 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:647:5
[INFO] [stdout]   18:     0x561b1b445775 - core::panicking::panic_fmt::h29b6f262f6458dc3
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x561b1b445bab - core::panicking::assert_failed_inner::h2c4dd574e44796db
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/panicking.rs:342:17
[INFO] [stdout]   20:     0x561b1b44fbde - core::panicking::assert_failed::h5640ea9a078b1db7
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/panicking.rs:297:5
[INFO] [stdout]   21:     0x561b1b450c1a - _rust_minigrep::tests::case_insensitive::hb06382738bc0bfc8
[INFO] [stdout]                                at /opt/rustwide/workdir/apps/rust/minigrep/src/lib.rs:83:9
[INFO] [stdout]   22:     0x561b1b450a67 - _rust_minigrep::tests::case_insensitive::{{closure}}::hf59182bbddcd55d3
[INFO] [stdout]                                at /opt/rustwide/workdir/apps/rust/minigrep/src/lib.rs:75:26
[INFO] [stdout]   23:     0x561b1b446656 - core::ops::function::FnOnce::call_once::hb8a24ebd5db20a52
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x561b1b48ac8f - core::ops::function::FnOnce::call_once::h692fe6f34484199f
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x561b1b48ac8f - test::__rust_begin_short_backtrace::h48b62e76bd60e2de
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:621:18
[INFO] [stdout]   26:     0x561b1b489ab1 - test::run_test_in_process::{{closure}}::h1c68597526ef43db
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:644:60
[INFO] [stdout]   27:     0x561b1b489ab1 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hcae98092997f976b
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x561b1b489ab1 - std::panicking::try::do_call::h8d1548c2f5bb535a
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:554:40
[INFO] [stdout]   29:     0x561b1b489ab1 - std::panicking::try::hbb7a2054f484688e
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:518:19
[INFO] [stdout]   30:     0x561b1b489ab1 - std::panic::catch_unwind::h696d12d9d80497c2
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panic.rs:142:14
[INFO] [stdout]   31:     0x561b1b489ab1 - test::run_test_in_process::h053367a7217c825b
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:644:27
[INFO] [stdout]   32:     0x561b1b489ab1 - test::run_test::{{closure}}::hfa524e9fabcba78e
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:567:43
[INFO] [stdout]   33:     0x561b1b450f16 - test::run_test::{{closure}}::h2c4d0bb741ef7f9f
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:595:41
[INFO] [stdout]   34:     0x561b1b450f16 - std::sys_common::backtrace::__rust_begin_short_backtrace::h0d2c708415550075
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stdout]   35:     0x561b1b455ed7 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h76e2635840d7293f
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   36:     0x561b1b455ed7 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::haa640b67a810a214
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x561b1b455ed7 - std::panicking::try::do_call::h41892e3bc2807ab5
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:554:40
[INFO] [stdout]   38:     0x561b1b455ed7 - std::panicking::try::h861a16d180681c80
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:518:19
[INFO] [stdout]   39:     0x561b1b455ed7 - std::panic::catch_unwind::h8195f9064b1509fa
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panic.rs:142:14
[INFO] [stdout]   40:     0x561b1b455ed7 - std::thread::Builder::spawn_unchecked_::{{closure}}::h73cc419da1217371
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   41:     0x561b1b455ed7 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h79dc6499ff073b09
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x561b1b4b9e85 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::ha718e8cdc51a5182
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]   43:     0x561b1b4b9e85 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h86072abc877c5474
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]   44:     0x561b1b4b9e85 - std::sys::pal::unix::thread::Thread::new::thread_start::hac4056197c365894
[INFO] [stdout]                                at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys/pal/unix/thread.rs:108:17
[INFO] [stdout]   45:     0x7f1cdacbdac3 - <unknown>
[INFO] [stdout]   46:     0x7f1cdad4ebf4 - __clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::case_insensitive
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `-p _rust_minigrep --lib`
[INFO] running `Command { std: "docker" "inspect" "0120bc5f8fc2c43040f0e733ab498f6d3ea30ee819cfe6576162a1f0a0265783", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0120bc5f8fc2c43040f0e733ab498f6d3ea30ee819cfe6576162a1f0a0265783", kill_on_drop: false }`
[INFO] [stdout] 0120bc5f8fc2c43040f0e733ab498f6d3ea30ee819cfe6576162a1f0a0265783
