[INFO] cloning repository https://github.com/0xkieranwilliams/rust-learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xkieranwilliams/rust-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xkieranwilliams%2Frust-learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xkieranwilliams%2Frust-learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5578440800c1f0b4903c18295ec36cfbeaa497c4
[INFO] checking 0xkieranwilliams/rust-learning against try#f27166d4c64dc29edc5ea3214357f191edf8b635 for pr-148329
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xkieranwilliams%2Frust-learning" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/0xkieranwilliams/rust-learning
[INFO] finished tweaking git repo https://github.com/0xkieranwilliams/rust-learning
[INFO] tweaked toml for git repo https://github.com/0xkieranwilliams/rust-learning written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/0xkieranwilliams/rust-learning on toolchain f27166d4c64dc29edc5ea3214357f191edf8b635
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f27166d4c64dc29edc5ea3214357f191edf8b635" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/0xkieranwilliams/rust-learning 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" "+f27166d4c64dc29edc5ea3214357f191edf8b635" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f27166d4c64dc29edc5ea3214357f191edf8b635" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5db9e259d8c5a751128f93e11b70e967acc03c0f063f0d7e05a29a15155a49dd
[INFO] running `Command { std: "docker" "start" "-a" "5db9e259d8c5a751128f93e11b70e967acc03c0f063f0d7e05a29a15155a49dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5db9e259d8c5a751128f93e11b70e967acc03c0f063f0d7e05a29a15155a49dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5db9e259d8c5a751128f93e11b70e967acc03c0f063f0d7e05a29a15155a49dd", kill_on_drop: false }`
[INFO] [stdout] 5db9e259d8c5a751128f93e11b70e967acc03c0f063f0d7e05a29a15155a49dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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" "+f27166d4c64dc29edc5ea3214357f191edf8b635" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76adb1ed18f85e1d725ddd843639df8398314971f05596d5922ed21f220d7a08
[INFO] running `Command { std: "docker" "start" "-a" "76adb1ed18f85e1d725ddd843639df8398314971f05596d5922ed21f220d7a08", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/flow_of_control_if_let.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     /// challenge
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 66 |     let a = Foo::Bar;
[INFO] [stdout]    |     ----------------- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/flow_of_control_if_let.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     /// challenge
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 66 |     let a = Foo::Bar;
[INFO] [stdout]    |     ----------------- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `integer`
[INFO] [stdout]  --> src/types_casting.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let integer: u8 = decimal as u8;
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_integer`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `integer`
[INFO] [stdout]  --> src/types_casting.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let integer: u8 = decimal as u8;
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_integer`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/flow_of_control_if_let.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |     if let Foo::Qux(value @ 200) = c {
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/flow_of_control_if_let.rs:61:21
[INFO] [stdout]    |
[INFO] [stdout] 61 |     if let Foo::Qux(value @ 100) = c {
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/flow_of_control_if_let.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |     if let Foo::Qux(value @ 200) = c {
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/flow_of_control_if_let.rs:61:21
[INFO] [stdout]    |
[INFO] [stdout] 61 |     if let Foo::Qux(value @ 100) = c {
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/formatted_print.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnPrintable` is never constructed
[INFO] [stdout]  --> src/formatted_print_debug.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct UnPrintable(i32);
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DebugPrintable` is never constructed
[INFO] [stdout]  --> src/formatted_print_debug.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct DebugPrintable(i32);
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/formatted_print.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Structure` is never constructed
[INFO] [stdout]   --> src/formatted_print_debug.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Structure(i32);
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Deep` is never constructed
[INFO] [stdout]   --> src/formatted_print_debug.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Deep(Structure);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/formatted_print_debug.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnPrintable` is never constructed
[INFO] [stdout]  --> src/formatted_print_debug.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct UnPrintable(i32);
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MinMax` is never constructed
[INFO] [stdout]  --> src/formatted_print_display.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct MinMax(i64, i64);
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point2D` is never constructed
[INFO] [stdout]   --> src/formatted_print_display.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Point2D {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DebugPrintable` is never constructed
[INFO] [stdout]  --> src/formatted_print_debug.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct DebugPrintable(i32);
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/formatted_print_display.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `City` is never constructed
[INFO] [stdout]  --> src/formatted_print_formatting.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct City {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]   --> src/formatted_print_formatting.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct Color {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Structure` is never constructed
[INFO] [stdout]   --> src/formatted_print_debug.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Structure(i32);
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/formatted_print_formatting.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn run () {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/primitives_literals_and_operators.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Deep` is never constructed
[INFO] [stdout]   --> src/formatted_print_debug.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Deep(Structure);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reverse` is never used
[INFO] [stdout]  --> src/primitives_tuples.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn reverse(pair: (i32, bool)) -> (bool, i32) {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `transpose` is never used
[INFO] [stdout]   --> src/primitives_tuples.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn transpose(matrix: Matrix) -> Matrix {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Matrix` is never constructed
[INFO] [stdout]   --> src/primitives_tuples.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct Matrix(f32, f32, f32, f32);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/primitives_tuples.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `analyze_slice` is never used
[INFO] [stdout]  --> src/primitives_arrays_and_slices.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn analyze_slice(slice: &[i32]) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/primitives_arrays_and_slices.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `WebEvent` is never used
[INFO] [stdout]  --> src/custom_types_enums.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum WebEvent {
[INFO] [stdout]   |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `inspect` is never used
[INFO] [stdout]   --> src/custom_types_enums.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn inspect(event: WebEvent) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/custom_types_enums.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/types_casting.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/types_literals.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/types_inference.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `NanoSecond` is never used
[INFO] [stdout]  --> src/types_aliasing.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 | type NanoSecond = u64;
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Inch` is never used
[INFO] [stdout]  --> src/types_aliasing.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | type Inch = u64;
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `U64` is never used
[INFO] [stdout]  --> src/types_aliasing.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | type U64 = u64;
[INFO] [stdout]   |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/types_aliasing.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Number` is never constructed
[INFO] [stdout]  --> src/conversion_from_and_into.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Number {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EvenNumber` is never constructed
[INFO] [stdout]   --> src/conversion_from_and_into.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct EvenNumber(i32);
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/conversion_from_and_into.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Circle` is never constructed
[INFO] [stdout]  --> src/conversion_to_and_from_strings.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Circle {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/conversion_to_and_from_strings.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn run () {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/flow_of_control_if_else.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/flow_of_control_loop.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn run () {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/flow_of_control_while.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run () {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/flow_of_control_for_loops.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run () {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/flow_of_control_match.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/flow_of_control_match_destructuring.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Foo` is never used
[INFO] [stdout]  --> src/flow_of_control_if_let.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Foo {
[INFO] [stdout]   |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/flow_of_control_if_let.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn run () {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_count_item` is never used
[INFO] [stdout]  --> src/flow_of_control_let_else.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn get_count_item(s: &str) -> (u64, &str) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/flow_of_control_let_else.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/formatted_print_debug.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MinMax` is never constructed
[INFO] [stdout]  --> src/formatted_print_display.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct MinMax(i64, i64);
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point2D` is never constructed
[INFO] [stdout]   --> src/formatted_print_display.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Point2D {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/formatted_print_display.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `City` is never constructed
[INFO] [stdout]  --> src/formatted_print_formatting.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct City {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]   --> src/formatted_print_formatting.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct Color {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/formatted_print_formatting.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn run () {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/primitives_literals_and_operators.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reverse` is never used
[INFO] [stdout]  --> src/primitives_tuples.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn reverse(pair: (i32, bool)) -> (bool, i32) {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `transpose` is never used
[INFO] [stdout]   --> src/primitives_tuples.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn transpose(matrix: Matrix) -> Matrix {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Matrix` is never constructed
[INFO] [stdout]   --> src/primitives_tuples.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct Matrix(f32, f32, f32, f32);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/primitives_tuples.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `analyze_slice` is never used
[INFO] [stdout]  --> src/primitives_arrays_and_slices.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn analyze_slice(slice: &[i32]) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/primitives_arrays_and_slices.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `WebEvent` is never used
[INFO] [stdout]  --> src/custom_types_enums.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum WebEvent {
[INFO] [stdout]   |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `inspect` is never used
[INFO] [stdout]   --> src/custom_types_enums.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn inspect(event: WebEvent) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/custom_types_enums.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/types_casting.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/types_literals.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/types_inference.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `NanoSecond` is never used
[INFO] [stdout]  --> src/types_aliasing.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 | type NanoSecond = u64;
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Inch` is never used
[INFO] [stdout]  --> src/types_aliasing.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | type Inch = u64;
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `U64` is never used
[INFO] [stdout]  --> src/types_aliasing.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | type U64 = u64;
[INFO] [stdout]   |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/types_aliasing.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Number` is never constructed
[INFO] [stdout]  --> src/conversion_from_and_into.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Number {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EvenNumber` is never constructed
[INFO] [stdout]   --> src/conversion_from_and_into.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct EvenNumber(i32);
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/conversion_from_and_into.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Circle` is never constructed
[INFO] [stdout]  --> src/conversion_to_and_from_strings.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Circle {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/conversion_to_and_from_strings.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn run () {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/flow_of_control_if_else.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/flow_of_control_loop.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn run () {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/flow_of_control_while.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run () {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/flow_of_control_for_loops.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run () {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/flow_of_control_match.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/flow_of_control_match_destructuring.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Foo` is never used
[INFO] [stdout]  --> src/flow_of_control_if_let.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Foo {
[INFO] [stdout]   |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/flow_of_control_if_let.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn run () {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_count_item` is never used
[INFO] [stdout]  --> src/flow_of_control_let_else.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn get_count_item(s: &str) -> (u64, &str) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/flow_of_control_let_else.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "76adb1ed18f85e1d725ddd843639df8398314971f05596d5922ed21f220d7a08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76adb1ed18f85e1d725ddd843639df8398314971f05596d5922ed21f220d7a08", kill_on_drop: false }`
[INFO] [stdout] 76adb1ed18f85e1d725ddd843639df8398314971f05596d5922ed21f220d7a08
