[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 master#1ef7943ee607160a564655b6596f83670ef95df5 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamseki%2Fstudies" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-6-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-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/iamseki/studies on toolchain 1ef7943ee607160a564655b6596f83670ef95df5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+1ef7943ee607160a564655b6596f83670ef95df5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8f754daa9ba7a68ec1e3a4d88cd149a683f20863c455efdc8b9c071bfc21f3c
[INFO] running `Command { std: "docker" "start" "-a" "a8f754daa9ba7a68ec1e3a4d88cd149a683f20863c455efdc8b9c071bfc21f3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8f754daa9ba7a68ec1e3a4d88cd149a683f20863c455efdc8b9c071bfc21f3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8f754daa9ba7a68ec1e3a4d88cd149a683f20863c455efdc8b9c071bfc21f3c", kill_on_drop: false }`
[INFO] [stdout] a8f754daa9ba7a68ec1e3a4d88cd149a683f20863c455efdc8b9c071bfc21f3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49bca8eee4c2e3a4cd48d1db2493619faf16aa64ed771e22b9e911cbb7015814
[INFO] running `Command { std: "docker" "start" "-a" "49bca8eee4c2e3a4cd48d1db2493619faf16aa64ed771e22b9e911cbb7015814", kill_on_drop: false }`
[INFO] [stderr]    Compiling _rust_math v0.1.0 (/opt/rustwide/workdir/libs/rust/math)
[INFO] [stderr]    Compiling _rust_iterators_n_closures v0.1.0 (/opt/rustwide/workdir/apps/rust/iterators_n_closures)
[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_lib v0.1.0 (/opt/rustwide/workdir/apps/rust/lib)
[INFO] [stderr]    Compiling _rust_minigrep v0.1.0 (/opt/rustwide/workdir/apps/rust/minigrep)
[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] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> libs/rust/math/src/lib.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Rectangle {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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 `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: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 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(i32, RefCell<Rc<List>>),
[INFO] [stdout] 10 +     Cons((), RefCell<Rc<List>>),
[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)]` (part of `#[warn(unused)]`) on by default
[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: 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)]` (part of `#[warn(unused)]`) 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: variable `x` is assigned to, but never used
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:28:32
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let add_one_closure = |mut x| {
[INFO] [stdout]    |                                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_x` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Shoe` is never constructed
[INFO] [stdout]  --> apps/rust/iterators_n_closures/src/shoes_company.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Shoe {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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] 
[INFO] [stderr]    Compiling _rust_testing v0.1.0 (/opt/rustwide/workdir/apps/rust/testing)
[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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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] [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_ds v0.1.0 (/opt/rustwide/workdir/apps/rust/ds)
[INFO] [stderr]    Compiling _rust_errors v0.1.0 (/opt/rustwide/workdir/apps/rust/errors)
[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: `SpreadsheetCell` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 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(i32),
[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]    = note: `SpreadsheetCell` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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(f64),
[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]    = note: `SpreadsheetCell` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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(String)
[INFO] [stdout] 63 +         Text(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling _rust_patterns_matching v0.1.0 (/opt/rustwide/workdir/apps/rust/patterns_matching)
[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_structs v0.1.0 (/opt/rustwide/workdir/apps/rust/structs)
[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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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: 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: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 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(u8, u8, u8, u8),
[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]   = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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(String),
[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(String),
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.48s
[INFO] running `Command { std: "docker" "inspect" "49bca8eee4c2e3a4cd48d1db2493619faf16aa64ed771e22b9e911cbb7015814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49bca8eee4c2e3a4cd48d1db2493619faf16aa64ed771e22b9e911cbb7015814", kill_on_drop: false }`
[INFO] [stdout] 49bca8eee4c2e3a4cd48d1db2493619faf16aa64ed771e22b9e911cbb7015814
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0b3a404f47896cd12d23f3b944f3ebebb11c852a9c21b71f6420786d8f0e31d
[INFO] running `Command { std: "docker" "start" "-a" "e0b3a404f47896cd12d23f3b944f3ebebb11c852a9c21b71f6420786d8f0e31d", kill_on_drop: false }`
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> libs/rust/math/src/lib.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Rectangle {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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] [stderr]    Compiling _rust_concurrency v0.1.0 (/opt/rustwide/workdir/apps/rust/concurrency)
[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)]` (part of `#[warn(unused)]`) 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: variable `x` is assigned to, but never used
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:28:32
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let add_one_closure = |mut x| {
[INFO] [stdout]    |                                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_x` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Shoe` is never constructed
[INFO] [stdout]  --> apps/rust/iterators_n_closures/src/shoes_company.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Shoe {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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] 
[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)]` (part of `#[warn(unused)]`) 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: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 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(i32, RefCell<Rc<List>>),
[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] [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_lib v0.1.0 (/opt/rustwide/workdir/apps/rust/lib)
[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_web_server v0.1.0 (/opt/rustwide/workdir/apps/rust/web_server)
[INFO] [stderr]    Compiling _rust_testing v0.1.0 (/opt/rustwide/workdir/apps/rust/testing)
[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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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] [stderr]    Compiling _rust_slice v0.1.0 (/opt/rustwide/workdir/apps/rust/slice)
[INFO] [stderr]    Compiling _rust_math v0.1.0 (/opt/rustwide/workdir/libs/rust/math)
[INFO] [stderr]    Compiling _rust_errors v0.1.0 (/opt/rustwide/workdir/apps/rust/errors)
[INFO] [stderr]    Compiling _rust_oop v0.1.0 (/opt/rustwide/workdir/apps/rust/oop)
[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: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 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(i32, RefCell<Rc<List>>),
[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] [stderr]    Compiling _rust_patterns_matching v0.1.0 (/opt/rustwide/workdir/apps/rust/patterns_matching)
[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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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_ds v0.1.0 (/opt/rustwide/workdir/apps/rust/ds)
[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)]` (part of `#[warn(unused)]`) 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: variable `x` is assigned to, but never used
[INFO] [stdout]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:28:32
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let add_one_closure = |mut x| {
[INFO] [stdout]    |                                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_x` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling _rust_ownership_mistakes v0.1.0 (/opt/rustwide/workdir/apps/rust/ownership_mistakes)
[INFO] [stderr]    Compiling _rust_enums v0.1.0 (/opt/rustwide/workdir/apps/rust/enums)
[INFO] [stderr]    Compiling _rust_structs v0.1.0 (/opt/rustwide/workdir/apps/rust/structs)
[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: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 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(u8, u8, u8, u8),
[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]   = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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(String),
[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(String),
[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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.85s
[INFO] running `Command { std: "docker" "inspect" "e0b3a404f47896cd12d23f3b944f3ebebb11c852a9c21b71f6420786d8f0e31d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0b3a404f47896cd12d23f3b944f3ebebb11c852a9c21b71f6420786d8f0e31d", kill_on_drop: false }`
[INFO] [stdout] e0b3a404f47896cd12d23f3b944f3ebebb11c852a9c21b71f6420786d8f0e31d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 29cc8e66c6dd27ed46361375ba1406ae744e35b65283c7a1845454e042d3c32d
[INFO] running `Command { std: "docker" "start" "-a" "29cc8e66c6dd27ed46361375ba1406ae744e35b65283c7a1845454e042d3c32d", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Rectangle` is never constructed
[INFO] [stderr]  --> libs/rust/math/src/lib.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Rectangle {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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: 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)]` (part of `#[warn(unused)]`) 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: variable `x` is assigned to, but never used
[INFO] [stderr]   --> apps/rust/iterators_n_closures/src/t_shirt_company.rs:28:32
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let add_one_closure = |mut x| {
[INFO] [stderr]    |                                ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_x` instead
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Shoe` is never constructed
[INFO] [stderr]  --> apps/rust/iterators_n_closures/src/shoes_company.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | struct Shoe {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[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] 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: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 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(i32, RefCell<Rc<List>>),
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `_rust_iterators_n_closures` (lib) generated 6 warnings (run `cargo fix --lib -p _rust_iterators_n_closures` to apply 2 suggestions)
[INFO] [stderr] warning: `_rust_smart_pointers` (lib) generated 2 warnings
[INFO] [stderr] warning: `_rust_lib` (lib) generated 1 warning
[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)]` (part of `#[warn(unused)]`) 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" -p _rust_iterators_n_closures --tests` to apply 1 suggestion)
[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)]` (part of `#[warn(unused)]`) 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" -p _rust_smart_pointers --tests` to apply 2 suggestions)
[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: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 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(u8, u8, u8, u8),
[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]   = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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(String),
[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(String),
[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: 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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_enums` (bin "_rust_enums" test) generated 4 warnings
[INFO] [stderr] warning: `_rust_patterns_matching` (bin "_rust_patterns_matching" test) generated 4 warnings
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[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: `_rust_smart_pointers` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr] warning: `_rust_lib` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/_rust_concurrency-7b55b35d95a3b33a)
[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-9faa6f6550289abe)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/_rust_ds-8f51196842fb4c36)
[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] [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-0a3915ef1d887f90)
[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-adb359ad2e3c3ddf)
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/_rust_generics-feb3452398e20764)
[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] [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-f57f345304254a5e)
[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-67f31da59d1f3dab)
[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_user_prefered ... ok
[INFO] [stdout] test t_shirt_company::tests::should_giveaway_more_stocked ... 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-8c94e0dc34a246f1)
[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-5017e976a8dc6f2e)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/_rust_lib-f49dad15e0d8e390)
[INFO] [stdout] 
[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-423571f9bd35ab8d)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::greeting_contains_name ... ignored
[INFO] [stdout] test tests::larger_can_hold_smaller ... ok
[INFO] [stdout] test tests::should_call_internal_adder ... ok
[INFO] [stdout] test tests::it_adds_two ... 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 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/_rust_minigrep-b55818751b1de609)
[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] 
[INFO] [stdout] thread 'tests::case_insensitive' (36) 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:     0x6067a8497ec2 - std::backtrace_rs::backtrace::libunwind::trace::h786de35fecf3582f
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x6067a8497ec2 - std::backtrace_rs::backtrace::trace_unsynchronized::h4a7da1a2a64387f1
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x6067a8497ec2 - std::sys::backtrace::_print_fmt::h6bd7d500070c788c
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x6067a8497ec2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h6d82c1afff976903
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x6067a84a8a8f - core::fmt::rt::Argument::fmt::hc4ce6d643d397690
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x6067a84a8a8f - core::fmt::write::hb1e7ca88b6a3936e
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x6067a8465863 - std::io::default_write_fmt::haffd49d96f1984a8
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x6067a8465863 - std::io::Write::write_fmt::h027871c57cf57c01
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x6067a8471732 - std::sys::backtrace::BacktraceLock::print::ha2430613ee79d059
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x6067a847620f - std::panicking::default_hook::{{closure}}::hdbd2db9e5c303cf6
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x6067a84760a1 - std::panicking::default_hook::hed93c70cba5fdcf0
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x6067a843926e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd0ee8b569efc6a07
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   12:     0x6067a843926e - test::test_main_with_exit_callback::{{closure}}::hf10864b576ecd15d
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x6067a847681f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h3a55ca34534c0d00
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   14:     0x6067a847681f - std::panicking::panic_with_hook::h3862d766c2cec19b
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x6067a847667a - std::panicking::panic_handler::{{closure}}::hb95eb402b5e28ee1
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x6067a8471869 - std::sys::backtrace::__rust_end_short_backtrace::hf73a26dc1835d85a
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x6067a845a15d - __rustc[6ed5915ee467787]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x6067a84b0660 - core::panicking::panic_fmt::h3454303eb8e6f7cd
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x6067a84b0463 - core::panicking::assert_failed_inner::hdcc703ae7c807131
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panicking.rs:444:17
[INFO] [stdout]   20:     0x6067a8417c8d - core::panicking::assert_failed::h869826e325af7bdb
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panicking.rs:399:5
[INFO] [stdout]   21:     0x6067a8410671 - _rust_minigrep::tests::case_insensitive::hb750bf7288fb0586
[INFO] [stdout]                                at /opt/rustwide/workdir/apps/rust/minigrep/src/lib.rs:83:9
[INFO] [stdout]   22:     0x6067a84106c7 - _rust_minigrep::tests::case_insensitive::{{closure}}::h14b37ffc91038409
[INFO] [stdout]                                at /opt/rustwide/workdir/apps/rust/minigrep/src/lib.rs:75:26
[INFO] [stdout]   23:     0x6067a84109c6 - core::ops::function::FnOnce::call_once::h40818d98b5e8742a
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x6067a843904b - core::ops::function::FnOnce::call_once::ha729ee35d2fab541
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x6067a843904b - test::__rust_begin_short_backtrace::ha40f4db8207e1111
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x6067a844d0cd - test::run_test_in_process::{{closure}}::hc1b77cda5d44f0f3
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x6067a844d0cd - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h1dbea1de64785521
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x6067a844d0cd - std::panicking::catch_unwind::do_call::hd5febe9affd5a1b3
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x6067a844d0cd - std::panicking::catch_unwind::h51ea89627559b6f4
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x6067a844d0cd - std::panic::catch_unwind::hb8b8c2367cae3d66
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x6067a844d0cd - test::run_test_in_process::ha5b55801407ea100
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x6067a844d0cd - test::run_test::{{closure}}::h0b9d4072b527abf5
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x6067a84265e4 - test::run_test::{{closure}}::hb1056b5731205822
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x6067a84265e4 - std::sys::backtrace::__rust_begin_short_backtrace::hb61ff5a34023c7ef
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x6067a8429f1a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hb0a83c0e8b353cff
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/thread/mod.rs:562:17
[INFO] [stdout]   36:     0x6067a8429f1a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb4f32cb008535298
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x6067a8429f1a - std::panicking::catch_unwind::do_call::h16d110e4fc35789a
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x6067a8429f1a - std::panicking::catch_unwind::hea9118f355699c4b
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x6067a8429f1a - std::panic::catch_unwind::hf4b3c2a06d3f42f5
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x6067a8429f1a - std::thread::Builder::spawn_unchecked_::{{closure}}::h3f4cb733a52d53d5
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/thread/mod.rs:560:30
[INFO] [stdout]   41:     0x6067a8429f1a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h4052f0967b37caeb
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x6067a846cc6f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7ec433abd3f148b4
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/alloc/src/boxed.rs:2085:9
[INFO] [stdout]   43:     0x6067a846cc6f - std::sys::thread::unix::Thread::new::thread_start::he514622d3d7ba65c
[INFO] [stdout]                                at /rustc/1ef7943ee607160a564655b6596f83670ef95df5/library/std/src/sys/thread/unix.rs:124:17
[INFO] [stdout]   44:     0x7247ffe95aa4 - <unknown>
[INFO] [stdout]   45:     0x7247fff22a64 - clone
[INFO] [stdout]   46:                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 0.02s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `-p _rust_minigrep --lib`
[INFO] running `Command { std: "docker" "inspect" "29cc8e66c6dd27ed46361375ba1406ae744e35b65283c7a1845454e042d3c32d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29cc8e66c6dd27ed46361375ba1406ae744e35b65283c7a1845454e042d3c32d", kill_on_drop: false }`
[INFO] [stdout] 29cc8e66c6dd27ed46361375ba1406ae744e35b65283c7a1845454e042d3c32d
