[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#0d162b25edd5bf0dba9a22e83b614f1113e90474 for pr-150681-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamseki%2Fstudies" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-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-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/iamseki/studies on toolchain 0d162b25edd5bf0dba9a22e83b614f1113e90474
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "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" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 039406bd4183f30b085010251aeed533fed7f01bff61837c534e38691a71b976
[INFO] running `Command { std: "docker" "start" "-a" "039406bd4183f30b085010251aeed533fed7f01bff61837c534e38691a71b976", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "039406bd4183f30b085010251aeed533fed7f01bff61837c534e38691a71b976", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "039406bd4183f30b085010251aeed533fed7f01bff61837c534e38691a71b976", kill_on_drop: false }`
[INFO] [stdout] 039406bd4183f30b085010251aeed533fed7f01bff61837c534e38691a71b976
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d18fbe293fd56b5f02ce1d91b78354d5250bd22b0a4adec3d8500bb4e75cde15
[INFO] running `Command { std: "docker" "start" "-a" "d18fbe293fd56b5f02ce1d91b78354d5250bd22b0a4adec3d8500bb4e75cde15", 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_lib v0.1.0 (/opt/rustwide/workdir/apps/rust/lib)
[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_web_server v0.1.0 (/opt/rustwide/workdir/apps/rust/web_server)
[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_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] [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] [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] [stderr]    Compiling _rust_oop v0.1.0 (/opt/rustwide/workdir/apps/rust/oop)
[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: 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: 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] [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: 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: 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: 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 `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_testing v0.1.0 (/opt/rustwide/workdir/apps/rust/testing)
[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: 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: 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 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]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.18s
[INFO] running `Command { std: "docker" "inspect" "d18fbe293fd56b5f02ce1d91b78354d5250bd22b0a4adec3d8500bb4e75cde15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d18fbe293fd56b5f02ce1d91b78354d5250bd22b0a4adec3d8500bb4e75cde15", kill_on_drop: false }`
[INFO] [stdout] d18fbe293fd56b5f02ce1d91b78354d5250bd22b0a4adec3d8500bb4e75cde15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bbaacbfb0ec38f82fa6eb1dbd844b3d3f2931f62fbc13b21fcd218f6653b5533
[INFO] running `Command { std: "docker" "start" "-a" "bbaacbfb0ec38f82fa6eb1dbd844b3d3f2931f62fbc13b21fcd218f6653b5533", kill_on_drop: false }`
[INFO] [stderr]    Compiling _rust_testing v0.1.0 (/opt/rustwide/workdir/apps/rust/testing)
[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] [stderr]    Compiling _rust_ds v0.1.0 (/opt/rustwide/workdir/apps/rust/ds)
[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] [stderr]    Compiling _rust_oop v0.1.0 (/opt/rustwide/workdir/apps/rust/oop)
[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] [stderr]    Compiling _rust_generics v0.1.0 (/opt/rustwide/workdir/apps/rust/generics)
[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_lib v0.1.0 (/opt/rustwide/workdir/apps/rust/lib)
[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: 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] [stderr]    Compiling _rust_smart_pointers v0.1.0 (/opt/rustwide/workdir/apps/rust/smart_pointers)
[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] [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_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_minigrep v0.1.0 (/opt/rustwide/workdir/apps/rust/minigrep)
[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: 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: 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_concurrency v0.1.0 (/opt/rustwide/workdir/apps/rust/concurrency)
[INFO] [stderr]    Compiling _rust_math v0.1.0 (/opt/rustwide/workdir/libs/rust/math)
[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_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] [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: 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 `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: 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] [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 `test` profile [unoptimized + debuginfo] target(s) in 2.31s
[INFO] running `Command { std: "docker" "inspect" "bbaacbfb0ec38f82fa6eb1dbd844b3d3f2931f62fbc13b21fcd218f6653b5533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbaacbfb0ec38f82fa6eb1dbd844b3d3f2931f62fbc13b21fcd218f6653b5533", kill_on_drop: false }`
[INFO] [stdout] bbaacbfb0ec38f82fa6eb1dbd844b3d3f2931f62fbc13b21fcd218f6653b5533
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b83c0075d6b888f4b3008db20f7fc5863b8a8fcc28959b6dbb964a9316950c0a
[INFO] running `Command { std: "docker" "start" "-a" "b83c0075d6b888f4b3008db20f7fc5863b8a8fcc28959b6dbb964a9316950c0a", 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: 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: 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: 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: `_rust_lib` (lib) generated 1 warning
[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_enums` (bin "_rust_enums" 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)]` (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: 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_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: `_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: 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: 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_math` (lib test) generated 1 warning
[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_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]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[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-2e2defc5247b9ff4)
[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_ds-8f51196842fb4c36)
[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] [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] [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-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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/_rust_generics-8472bf4feabaada1)
[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-95031d636047bde9)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/_rust_lib-bf674060bcdf0438)
[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] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/_rust_math-423571f9bd35ab8d)
[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 6 tests
[INFO] [stdout] test tests::greeting_contains_name ... ignored
[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] test tests::it_adds_two ... ok
[INFO] [stdout] test tests::larger_can_hold_smaller ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.04s
[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' (44) 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:     0x63dbce9c1652 - std[3b51380354919863]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x63dbce9c1652 - std[3b51380354919863]::backtrace_rs::backtrace::trace_unsynchronized::<std[3b51380354919863]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x63dbce9c1652 - std[3b51380354919863]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x63dbce9c1652 - <<std[3b51380354919863]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[27de1724e4349be2]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x63dbce9d6b7a - <core[27de1724e4349be2]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x63dbce9d6b7a - core[27de1724e4349be2]::fmt::write
[INFO] [stdout]    6:     0x63dbce9c6456 - std[3b51380354919863]::io::default_write_fmt::<alloc[a57f19327c0ad893]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x63dbce9c6456 - <alloc[a57f19327c0ad893]::vec::Vec<u8> as std[3b51380354919863]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x63dbce99fdef - <std[3b51380354919863]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x63dbce99fdef - std[3b51380354919863]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x63dbce9b9939 - std[3b51380354919863]::panicking::default_hook
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x63dbce9553be - <alloc[a57f19327c0ad893]::boxed::Box<dyn for<'a, 'b> core[27de1724e4349be2]::ops::function::Fn<(&'a std[3b51380354919863]::panic::PanicHookInfo<'b>,), Output = ()> + core[27de1724e4349be2]::marker::Sync + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::Fn<(&std[3b51380354919863]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x63dbce9553be - test[182b2e79ecd7bbd9]::test_main_with_exit_callback::<test[182b2e79ecd7bbd9]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x63dbce9b9af2 - <alloc[a57f19327c0ad893]::boxed::Box<dyn for<'a, 'b> core[27de1724e4349be2]::ops::function::Fn<(&'a std[3b51380354919863]::panic::PanicHookInfo<'b>,), Output = ()> + core[27de1724e4349be2]::marker::Sync + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::Fn<(&std[3b51380354919863]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x63dbce9b9af2 - std[3b51380354919863]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x63dbce99fea8 - std[3b51380354919863]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x63dbce995129 - std[3b51380354919863]::sys::backtrace::__rust_end_short_backtrace::<std[3b51380354919863]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x63dbce9a0cfd - __rustc[d79c0ace40940972]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x63dbce9d724c - core[27de1724e4349be2]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x63dbce9d7103 - core[27de1724e4349be2]::panicking::assert_failed_inner
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panicking.rs:439:17
[INFO] [stdout]   20:     0x63dbce94727d - core[27de1724e4349be2]::panicking::assert_failed::<alloc[a57f19327c0ad893]::vec::Vec<&str>, alloc[a57f19327c0ad893]::vec::Vec<&str>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panicking.rs:394:5
[INFO] [stdout]   21:     0x63dbce9482cd - _rust_minigrep[96a5271bb5897cc7]::tests::case_insensitive
[INFO] [stdout]                                at /opt/rustwide/workdir/apps/rust/minigrep/src/lib.rs:83:9
[INFO] [stdout]   22:     0x63dbce947827 - _rust_minigrep[96a5271bb5897cc7]::tests::case_insensitive::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/apps/rust/minigrep/src/lib.rs:75:26
[INFO] [stdout]   23:     0x63dbce9495a6 - <_rust_minigrep[96a5271bb5897cc7]::tests::case_insensitive::{closure#0} as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x63dbce94976b - <fn() -> core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x63dbce94976b - test[182b2e79ecd7bbd9]::__rust_begin_short_backtrace::<core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>, fn() -> core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x63dbce955fca - test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x63dbce955fca - <core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x63dbce955fca - std[3b51380354919863]::panicking::catch_unwind::do_call::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>, core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x63dbce955fca - std[3b51380354919863]::panicking::catch_unwind::<core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>, core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x63dbce955fca - std[3b51380354919863]::panic::catch_unwind::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>, core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14
[INFO] [stderr] error: test failed, to rerun pass `-p _rust_minigrep --lib`
[INFO] [stdout]   31:     0x63dbce955fca - test[182b2e79ecd7bbd9]::run_test_in_process
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x63dbce955fca - test[182b2e79ecd7bbd9]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x63dbce951574 - test[182b2e79ecd7bbd9]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x63dbce951574 - std[3b51380354919863]::sys::backtrace::__rust_begin_short_backtrace::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x63dbce958ac2 - std[3b51380354919863]::thread::lifecycle::spawn_unchecked::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   36:     0x63dbce958ac2 - <core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x63dbce958ac2 - std[3b51380354919863]::panicking::catch_unwind::do_call::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x63dbce958ac2 - std[3b51380354919863]::panicking::catch_unwind::<(), core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x63dbce958ac2 - std[3b51380354919863]::panic::catch_unwind::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x63dbce958ac2 - std[3b51380354919863]::thread::lifecycle::spawn_unchecked::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   41:     0x63dbce958ac2 - <std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1} as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x63dbce9c0eff - <alloc[a57f19327c0ad893]::boxed::Box<dyn core[27de1724e4349be2]::ops::function::FnOnce<(), Output = ()> + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   43:     0x63dbce9c0eff - <std[3b51380354919863]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   44:     0x70a80efa7aa4 - <unknown>
[INFO] [stdout]   45:     0x70a80f034a64 - 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 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b83c0075d6b888f4b3008db20f7fc5863b8a8fcc28959b6dbb964a9316950c0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b83c0075d6b888f4b3008db20f7fc5863b8a8fcc28959b6dbb964a9316950c0a", kill_on_drop: false }`
[INFO] [stdout] b83c0075d6b888f4b3008db20f7fc5863b8a8fcc28959b6dbb964a9316950c0a
