[INFO] cloning repository https://github.com/ds1231h/RustSimpleCode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ds1231h/RustSimpleCode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fds1231h%2FRustSimpleCode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fds1231h%2FRustSimpleCode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 649edd9daddd9554ebd15ce56886b9aa763c8735
[INFO] testing ds1231h/RustSimpleCode against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fds1231h%2FRustSimpleCode" "/workspace/builds/worker-105/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-105/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ds1231h/RustSimpleCode on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ds1231h/RustSimpleCode
[INFO] finished tweaking git repo https://github.com/ds1231h/RustSimpleCode
[INFO] tweaked toml for git repo https://github.com/ds1231h/RustSimpleCode written to /workspace/builds/worker-105/source/Cargo.toml
[INFO] crate git repo https://github.com/ds1231h/RustSimpleCode already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e64055939d2963875070081332021470cfed90afe716fdb52b078c4bafdc6c45
[INFO] running `Command { std: "docker" "start" "-a" "e64055939d2963875070081332021470cfed90afe716fdb52b078c4bafdc6c45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e64055939d2963875070081332021470cfed90afe716fdb52b078c4bafdc6c45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e64055939d2963875070081332021470cfed90afe716fdb52b078c4bafdc6c45", kill_on_drop: false }`
[INFO] [stdout] e64055939d2963875070081332021470cfed90afe716fdb52b078c4bafdc6c45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 630b931930a0ffefb3841c6b812d3b35d7e1f077bd6ae47d09cb640bbc841430
[INFO] running `Command { std: "docker" "start" "-a" "630b931930a0ffefb3841c6b812d3b35d7e1f077bd6ae47d09cb640bbc841430", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling Rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Dishes`, `Menu as fhm`
[INFO] [stdout]   --> src/project_manager.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | use fh::{Menu as fhm, Dishes};
[INFO] [stdout]    |          ^^^^^^^^^^^  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `duplicate`
[INFO] [stdout]   --> src/common_concept.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let duplicate = [3; 5];
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_duplicate`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/common_concept.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let (x, y, z) = tup;
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/common_concept.rs:44:16
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let (x, y, z) = tup;
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `y` is never read
[INFO] [stdout]   --> src/enums.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let mut y: Option<i8> = None;
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `count` is assigned to, but never used
[INFO] [stdout]    --> src/enums.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let mut count = 0;
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_count` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `count` is never read
[INFO] [stdout]    --> src/enums.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |         count += 1;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]   --> src/ownership.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let s2 = s1;
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]   --> src/ownership.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let s2 = s1.clone();
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i2`
[INFO] [stdout]   --> src/ownership.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let i2 = &mut i;
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_i2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit_struct`
[INFO] [stdout]   --> src/structs.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let unit_struct = UnitStruct {};
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unit_struct`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `origin`
[INFO] [stdout]    --> src/structs.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 |     let origin = Point(1, 2, 3);
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `XX`
[INFO] [stdout]  --> src/common_concept.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const XX: u8 = 10;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `basic_syntax`
[INFO] [stdout]  --> src/common_concept.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub(crate) fn basic_syntax() {
[INFO] [stdout]   |               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `guess_game`
[INFO] [stdout]   --> src/common_concept.rs:53:15
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub(crate) fn guess_game() {
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StrV4`
[INFO] [stdout]   --> src/enums.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     StrV4(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `IpAddrKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StrV6`
[INFO] [stdout]   --> src/enums.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     StrV6(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `IpAddrKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `VarV4`
[INFO] [stdout]   --> src/enums.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     VarV4(u8, u8, u8, u8),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `IpAddrKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `basic_test`
[INFO] [stdout]   --> src/enums.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn basic_test() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `route`
[INFO] [stdout]   --> src/enums.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn route(ip_kind: IpAddrKind) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Quit`
[INFO] [stdout]   --> src/enums.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Quit,                       // has no data associated with it at all.
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Move`
[INFO] [stdout]   --> src/enums.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     Move { x: i32, y: i32 },    // includes an anonymous struct inside it.
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Write`
[INFO] [stdout]   --> src/enums.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     Write(String),              // includes a single String.
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ChangeColor`
[INFO] [stdout]   --> src/enums.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     ChangeColor(i32, i32, i32), // includes three i32 values.
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Nested`
[INFO] [stdout]   --> src/enums.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Nested(Box<Message>), // insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Message` representable
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `previous_message`
[INFO] [stdout]   --> src/enums.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn previous_message(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `message_test`
[INFO] [stdout]   --> src/enums.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn message_test() {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `option_test`
[INFO] [stdout]   --> src/enums.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn option_test() {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `match_test`
[INFO] [stdout]   --> src/enums.rs:80:4
[INFO] [stdout]    |
[INFO] [stdout] 80 | fn match_test() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Alabama`
[INFO] [stdout]   --> src/enums.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     Alabama,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `UsState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums.rs:88:10
[INFO] [stdout]    |
[INFO] [stdout] 88 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Penny`
[INFO] [stdout]   --> src/enums.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     Penny,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Nickel`
[INFO] [stdout]   --> src/enums.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     Nickel,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Dime`
[INFO] [stdout]   --> src/enums.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     Dime,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `value_in_cents`
[INFO] [stdout]    --> src/enums.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn value_in_cents(coin: Coin) -> u8 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `plus_one`
[INFO] [stdout]    --> src/enums.rs:116:4
[INFO] [stdout]     |
[INFO] [stdout] 116 | fn plus_one(x: Option<i32>) -> Option<i32> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `match_option`
[INFO] [stdout]    --> src/enums.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn match_option() {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `match_placeholder`
[INFO] [stdout]    --> src/enums.rs:129:4
[INFO] [stdout]     |
[INFO] [stdout] 129 | fn match_placeholder() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `function_test`
[INFO] [stdout]  --> src/functions.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(crate) fn function_test() {
[INFO] [stdout]   |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_1`
[INFO] [stdout]  --> src/functions.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn test_1() {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_func`
[INFO] [stdout]   --> src/functions.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn test_func(x: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_2`
[INFO] [stdout]   --> src/functions.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn test_2() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `temperature_converter`
[INFO] [stdout]   --> src/functions.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn temperature_converter(fahrenheit: f64) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_3`
[INFO] [stdout]   --> src/functions.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn test_3() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fibonacci`
[INFO] [stdout]   --> src/functions.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn fibonacci(num: i8) -> i8 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ownership_test`
[INFO] [stdout]  --> src/ownership.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) fn ownership_test() {
[INFO] [stdout]   |               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_ownership`
[INFO] [stdout]   --> src/ownership.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn takes_ownership(some_string: String) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_copy`
[INFO] [stdout]   --> src/ownership.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn make_copy(some_integer: i32) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `change`
[INFO] [stdout]   --> src/ownership.rs:78:4
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn change(some_string: &mut String) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `first_word`
[INFO] [stdout]   --> src/ownership.rs:93:4
[INFO] [stdout]    |
[INFO] [stdout] 93 | fn first_word(s: &String) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `slice_first_word`
[INFO] [stdout]    --> src/ownership.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn slice_first_word(s: &mut String) -> &str {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `slice_second_word`
[INFO] [stdout]    --> src/ownership.rs:115:4
[INFO] [stdout]     |
[INFO] [stdout] 115 | fn slice_second_word(s: &mut String) -> &str {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `User`
[INFO] [stdout]  --> src/structs.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct User {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `structs_test`
[INFO] [stdout]  --> src/structs.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub(crate) fn structs_test() {
[INFO] [stdout]   |               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `width`
[INFO] [stdout]   --> src/structs.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     width: u32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/structs.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 63 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `height`
[INFO] [stdout]   --> src/structs.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     height: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/structs.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 63 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `area`
[INFO] [stdout]   --> src/structs.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn area(&self) -> u32 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `can_hold`
[INFO] [stdout]   --> src/structs.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `square`
[INFO] [stdout]   --> src/structs.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn square(size: u32) -> Rectangle {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `build_user`
[INFO] [stdout]   --> src/structs.rs:90:4
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn build_user(email: String, username: String) -> User {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `update_struct`
[INFO] [stdout]   --> src/structs.rs:99:4
[INFO] [stdout]    |
[INFO] [stdout] 99 | fn update_struct(user1: User, email: String, username: String) -> User {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `tuple_structs`
[INFO] [stdout]    --> src/structs.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn tuple_structs() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HAMBURGER_PRICE`
[INFO] [stdout]  --> src/project_manager.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |         const HAMBURGER_PRICE: u8 = 20;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SANDWICH_PRICE`
[INFO] [stdout]  --> src/project_manager.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         const SANDWICH_PRICE: u8 = 15;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Sandwich`
[INFO] [stdout]   --> src/project_manager.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |             Sandwich,
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Menu` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/project_manager.rs:8:18
[INFO] [stdout]    |
[INFO] [stdout] 8  |         #[derive(Debug)]
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `price`
[INFO] [stdout]   --> src/project_manager.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |             fn price(name: Menu) -> u8 {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `take_order`
[INFO] [stdout]   --> src/project_manager.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |         fn take_order() {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `serve_order`
[INFO] [stdout]   --> src/project_manager.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |         fn serve_order() {}
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `take_payment`
[INFO] [stdout]   --> src/project_manager.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |         fn take_payment() {}
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Rust` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rust`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 69 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.37s
[INFO] running `Command { std: "docker" "inspect" "630b931930a0ffefb3841c6b812d3b35d7e1f077bd6ae47d09cb640bbc841430", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "630b931930a0ffefb3841c6b812d3b35d7e1f077bd6ae47d09cb640bbc841430", kill_on_drop: false }`
[INFO] [stdout] 630b931930a0ffefb3841c6b812d3b35d7e1f077bd6ae47d09cb640bbc841430
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b7c8a74b6bc14f1ec00f9e89804323dd9e6408cdd6335b939a042e6b9eb457a
[INFO] running `Command { std: "docker" "start" "-a" "4b7c8a74b6bc14f1ec00f9e89804323dd9e6408cdd6335b939a042e6b9eb457a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling Rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Dishes`, `Menu as fhm`
[INFO] [stdout]   --> src/project_manager.rs:49:10
[INFO] [stdout]    |
[INFO] [stdout] 49 | use fh::{Menu as fhm, Dishes};
[INFO] [stdout]    |          ^^^^^^^^^^^  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `duplicate`
[INFO] [stdout]   --> src/common_concept.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let duplicate = [3; 5];
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_duplicate`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/common_concept.rs:44:10
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let (x, y, z) = tup;
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/common_concept.rs:44:16
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let (x, y, z) = tup;
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `y` is never read
[INFO] [stdout]   --> src/enums.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let mut y: Option<i8> = None;
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `count` is assigned to, but never used
[INFO] [stdout]    --> src/enums.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let mut count = 0;
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_count` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `count` is never read
[INFO] [stdout]    --> src/enums.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |         count += 1;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]   --> src/ownership.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let s2 = s1;
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]   --> src/ownership.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let s2 = s1.clone();
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i2`
[INFO] [stdout]   --> src/ownership.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let i2 = &mut i;
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_i2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unit_struct`
[INFO] [stdout]   --> src/structs.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let unit_struct = UnitStruct {};
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unit_struct`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `origin`
[INFO] [stdout]    --> src/structs.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 |     let origin = Point(1, 2, 3);
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `XX`
[INFO] [stdout]  --> src/common_concept.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const XX: u8 = 10;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `basic_syntax`
[INFO] [stdout]  --> src/common_concept.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub(crate) fn basic_syntax() {
[INFO] [stdout]   |               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `guess_game`
[INFO] [stdout]   --> src/common_concept.rs:53:15
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub(crate) fn guess_game() {
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StrV4`
[INFO] [stdout]   --> src/enums.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     StrV4(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `IpAddrKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StrV6`
[INFO] [stdout]   --> src/enums.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     StrV6(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `IpAddrKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `VarV4`
[INFO] [stdout]   --> src/enums.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     VarV4(u8, u8, u8, u8),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `IpAddrKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `basic_test`
[INFO] [stdout]   --> src/enums.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn basic_test() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `route`
[INFO] [stdout]   --> src/enums.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn route(ip_kind: IpAddrKind) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Quit`
[INFO] [stdout]   --> src/enums.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Quit,                       // has no data associated with it at all.
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Move`
[INFO] [stdout]   --> src/enums.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     Move { x: i32, y: i32 },    // includes an anonymous struct inside it.
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Write`
[INFO] [stdout]   --> src/enums.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     Write(String),              // includes a single String.
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ChangeColor`
[INFO] [stdout]   --> src/enums.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     ChangeColor(i32, i32, i32), // includes three i32 values.
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Nested`
[INFO] [stdout]   --> src/enums.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Nested(Box<Message>), // insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Message` representable
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `previous_message`
[INFO] [stdout]   --> src/enums.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn previous_message(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `message_test`
[INFO] [stdout]   --> src/enums.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn message_test() {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `option_test`
[INFO] [stdout]   --> src/enums.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn option_test() {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `match_test`
[INFO] [stdout]   --> src/enums.rs:80:4
[INFO] [stdout]    |
[INFO] [stdout] 80 | fn match_test() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Alabama`
[INFO] [stdout]   --> src/enums.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 |     Alabama,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `UsState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums.rs:88:10
[INFO] [stdout]    |
[INFO] [stdout] 88 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Penny`
[INFO] [stdout]   --> src/enums.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     Penny,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Nickel`
[INFO] [stdout]   --> src/enums.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     Nickel,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Dime`
[INFO] [stdout]   --> src/enums.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     Dime,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `value_in_cents`
[INFO] [stdout]    --> src/enums.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn value_in_cents(coin: Coin) -> u8 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `plus_one`
[INFO] [stdout]    --> src/enums.rs:116:4
[INFO] [stdout]     |
[INFO] [stdout] 116 | fn plus_one(x: Option<i32>) -> Option<i32> {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `match_option`
[INFO] [stdout]    --> src/enums.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn match_option() {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `match_placeholder`
[INFO] [stdout]    --> src/enums.rs:129:4
[INFO] [stdout]     |
[INFO] [stdout] 129 | fn match_placeholder() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `function_test`
[INFO] [stdout]  --> src/functions.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(crate) fn function_test() {
[INFO] [stdout]   |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_1`
[INFO] [stdout]  --> src/functions.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn test_1() {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_func`
[INFO] [stdout]   --> src/functions.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn test_func(x: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_2`
[INFO] [stdout]   --> src/functions.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn test_2() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `temperature_converter`
[INFO] [stdout]   --> src/functions.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn temperature_converter(fahrenheit: f64) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_3`
[INFO] [stdout]   --> src/functions.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn test_3() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fibonacci`
[INFO] [stdout]   --> src/functions.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn fibonacci(num: i8) -> i8 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ownership_test`
[INFO] [stdout]  --> src/ownership.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) fn ownership_test() {
[INFO] [stdout]   |               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `takes_ownership`
[INFO] [stdout]   --> src/ownership.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn takes_ownership(some_string: String) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_copy`
[INFO] [stdout]   --> src/ownership.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn make_copy(some_integer: i32) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `change`
[INFO] [stdout]   --> src/ownership.rs:78:4
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn change(some_string: &mut String) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `first_word`
[INFO] [stdout]   --> src/ownership.rs:93:4
[INFO] [stdout]    |
[INFO] [stdout] 93 | fn first_word(s: &String) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `slice_first_word`
[INFO] [stdout]    --> src/ownership.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn slice_first_word(s: &mut String) -> &str {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `slice_second_word`
[INFO] [stdout]    --> src/ownership.rs:115:4
[INFO] [stdout]     |
[INFO] [stdout] 115 | fn slice_second_word(s: &mut String) -> &str {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `User`
[INFO] [stdout]  --> src/structs.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct User {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `structs_test`
[INFO] [stdout]  --> src/structs.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub(crate) fn structs_test() {
[INFO] [stdout]   |               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `width`
[INFO] [stdout]   --> src/structs.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     width: u32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/structs.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 63 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `height`
[INFO] [stdout]   --> src/structs.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     height: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/structs.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 63 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `area`
[INFO] [stdout]   --> src/structs.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn area(&self) -> u32 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `can_hold`
[INFO] [stdout]   --> src/structs.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `square`
[INFO] [stdout]   --> src/structs.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn square(size: u32) -> Rectangle {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `build_user`
[INFO] [stdout]   --> src/structs.rs:90:4
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn build_user(email: String, username: String) -> User {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `update_struct`
[INFO] [stdout]   --> src/structs.rs:99:4
[INFO] [stdout]    |
[INFO] [stdout] 99 | fn update_struct(user1: User, email: String, username: String) -> User {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `tuple_structs`
[INFO] [stdout]    --> src/structs.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn tuple_structs() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `HAMBURGER_PRICE`
[INFO] [stdout]  --> src/project_manager.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |         const HAMBURGER_PRICE: u8 = 20;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SANDWICH_PRICE`
[INFO] [stdout]  --> src/project_manager.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         const SANDWICH_PRICE: u8 = 15;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Sandwich`
[INFO] [stdout]   --> src/project_manager.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |             Sandwich,
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Menu` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/project_manager.rs:8:18
[INFO] [stdout]    |
[INFO] [stdout] 8  |         #[derive(Debug)]
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `price`
[INFO] [stdout]   --> src/project_manager.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |             fn price(name: Menu) -> u8 {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `take_order`
[INFO] [stdout]   --> src/project_manager.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |         fn take_order() {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `serve_order`
[INFO] [stdout]   --> src/project_manager.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |         fn serve_order() {}
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `take_payment`
[INFO] [stdout]   --> src/project_manager.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |         fn take_payment() {}
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Rust` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rust`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 69 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.94s
[INFO] running `Command { std: "docker" "inspect" "4b7c8a74b6bc14f1ec00f9e89804323dd9e6408cdd6335b939a042e6b9eb457a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b7c8a74b6bc14f1ec00f9e89804323dd9e6408cdd6335b939a042e6b9eb457a", kill_on_drop: false }`
[INFO] [stdout] 4b7c8a74b6bc14f1ec00f9e89804323dd9e6408cdd6335b939a042e6b9eb457a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bd7aa548d225158f4b190889856a82be14fd8ba2dd396b27484e70b674b2113e
[INFO] running `Command { std: "docker" "start" "-a" "bd7aa548d225158f4b190889856a82be14fd8ba2dd396b27484e70b674b2113e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused imports: `Dishes`, `Menu as fhm`
[INFO] [stderr]   --> src/project_manager.rs:49:10
[INFO] [stderr]    |
[INFO] [stderr] 49 | use fh::{Menu as fhm, Dishes};
[INFO] [stderr]    |          ^^^^^^^^^^^  ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `duplicate`
[INFO] [stderr]   --> src/common_concept.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let duplicate = [3; 5];
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_duplicate`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/common_concept.rs:44:10
[INFO] [stderr]    |
[INFO] [stderr] 44 |     let (x, y, z) = tup;
[INFO] [stderr]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `z`
[INFO] [stderr]   --> src/common_concept.rs:44:16
[INFO] [stderr]    |
[INFO] [stderr] 44 |     let (x, y, z) = tup;
[INFO] [stderr]    |                ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `y` is never read
[INFO] [stderr]   --> src/enums.rs:73:13
[INFO] [stderr]    |
[INFO] [stderr] 73 |     let mut y: Option<i8> = None;
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable `count` is assigned to, but never used
[INFO] [stderr]    --> src/enums.rs:140:13
[INFO] [stderr]     |
[INFO] [stderr] 140 |     let mut count = 0;
[INFO] [stderr]     |             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_count` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `count` is never read
[INFO] [stderr]    --> src/enums.rs:144:9
[INFO] [stderr]     |
[INFO] [stderr] 144 |         count += 1;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s2`
[INFO] [stderr]   --> src/ownership.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let s2 = s1;
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s2`
[INFO] [stderr]   --> src/ownership.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let s2 = s1.clone();
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i2`
[INFO] [stderr]   --> src/ownership.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let i2 = &mut i;
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_i2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unit_struct`
[INFO] [stderr]   --> src/structs.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let unit_struct = UnitStruct {};
[INFO] [stderr]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unit_struct`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `origin`
[INFO] [stderr]    --> src/structs.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 |     let origin = Point(1, 2, 3);
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin`
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `XX`
[INFO] [stderr]  --> src/common_concept.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | const XX: u8 = 10;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `basic_syntax`
[INFO] [stderr]  --> src/common_concept.rs:7:15
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub(crate) fn basic_syntax() {
[INFO] [stderr]   |               ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `guess_game`
[INFO] [stderr]   --> src/common_concept.rs:53:15
[INFO] [stderr]    |
[INFO] [stderr] 53 | pub(crate) fn guess_game() {
[INFO] [stderr]    |               ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `StrV4`
[INFO] [stderr]   --> src/enums.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     StrV4(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `IpAddrKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/enums.rs:16:10
[INFO] [stderr]    |
[INFO] [stderr] 16 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `StrV6`
[INFO] [stderr]   --> src/enums.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     StrV6(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `IpAddrKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/enums.rs:16:10
[INFO] [stderr]    |
[INFO] [stderr] 16 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `VarV4`
[INFO] [stderr]   --> src/enums.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     VarV4(u8, u8, u8, u8),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `IpAddrKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/enums.rs:16:10
[INFO] [stderr]    |
[INFO] [stderr] 16 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `basic_test`
[INFO] [stderr]   --> src/enums.rs:23:4
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn basic_test() {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `route`
[INFO] [stderr]   --> src/enums.rs:32:4
[INFO] [stderr]    |
[INFO] [stderr] 32 | fn route(ip_kind: IpAddrKind) {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Quit`
[INFO] [stderr]   --> src/enums.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     Quit,                       // has no data associated with it at all.
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/enums.rs:36:10
[INFO] [stderr]    |
[INFO] [stderr] 36 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Move`
[INFO] [stderr]   --> src/enums.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     Move { x: i32, y: i32 },    // includes an anonymous struct inside it.
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/enums.rs:36:10
[INFO] [stderr]    |
[INFO] [stderr] 36 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Write`
[INFO] [stderr]   --> src/enums.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     Write(String),              // includes a single String.
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/enums.rs:36:10
[INFO] [stderr]    |
[INFO] [stderr] 36 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ChangeColor`
[INFO] [stderr]   --> src/enums.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     ChangeColor(i32, i32, i32), // includes three i32 values.
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/enums.rs:36:10
[INFO] [stderr]    |
[INFO] [stderr] 36 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Nested`
[INFO] [stderr]   --> src/enums.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     Nested(Box<Message>), // insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Message` representable
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/enums.rs:36:10
[INFO] [stderr]    |
[INFO] [stderr] 36 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `previous_message`
[INFO] [stderr]   --> src/enums.rs:46:8
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn previous_message(&self) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `message_test`
[INFO] [stderr]   --> src/enums.rs:51:4
[INFO] [stderr]    |
[INFO] [stderr] 51 | fn message_test() {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `option_test`
[INFO] [stderr]   --> src/enums.rs:64:4
[INFO] [stderr]    |
[INFO] [stderr] 64 | fn option_test() {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `match_test`
[INFO] [stderr]   --> src/enums.rs:80:4
[INFO] [stderr]    |
[INFO] [stderr] 80 | fn match_test() {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Alabama`
[INFO] [stderr]   --> src/enums.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 90 |     Alabama,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `UsState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/enums.rs:88:10
[INFO] [stderr]    |
[INFO] [stderr] 88 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Penny`
[INFO] [stderr]   --> src/enums.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 |     Penny,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Nickel`
[INFO] [stderr]   --> src/enums.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     Nickel,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Dime`
[INFO] [stderr]   --> src/enums.rs:97:5
[INFO] [stderr]    |
[INFO] [stderr] 97 |     Dime,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `value_in_cents`
[INFO] [stderr]    --> src/enums.rs:101:4
[INFO] [stderr]     |
[INFO] [stderr] 101 | fn value_in_cents(coin: Coin) -> u8 {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `plus_one`
[INFO] [stderr]    --> src/enums.rs:116:4
[INFO] [stderr]     |
[INFO] [stderr] 116 | fn plus_one(x: Option<i32>) -> Option<i32> {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `match_option`
[INFO] [stderr]    --> src/enums.rs:123:4
[INFO] [stderr]     |
[INFO] [stderr] 123 | fn match_option() {
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `match_placeholder`
[INFO] [stderr]    --> src/enums.rs:129:4
[INFO] [stderr]     |
[INFO] [stderr] 129 | fn match_placeholder() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `function_test`
[INFO] [stderr]  --> src/functions.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub(crate) fn function_test() {
[INFO] [stderr]   |               ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_1`
[INFO] [stderr]  --> src/functions.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn test_1() {
[INFO] [stderr]   |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_func`
[INFO] [stderr]   --> src/functions.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn test_func(x: i32) -> i32 {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_2`
[INFO] [stderr]   --> src/functions.rs:25:4
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn test_2() {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `temperature_converter`
[INFO] [stderr]   --> src/functions.rs:34:4
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn temperature_converter(fahrenheit: f64) -> f64 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_3`
[INFO] [stderr]   --> src/functions.rs:39:4
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn test_3() {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fibonacci`
[INFO] [stderr]   --> src/functions.rs:45:4
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn fibonacci(num: i8) -> i8 {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ownership_test`
[INFO] [stderr]  --> src/ownership.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub(crate) fn ownership_test() {
[INFO] [stderr]   |               ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `takes_ownership`
[INFO] [stderr]   --> src/ownership.rs:70:4
[INFO] [stderr]    |
[INFO] [stderr] 70 | fn takes_ownership(some_string: String) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `make_copy`
[INFO] [stderr]   --> src/ownership.rs:74:4
[INFO] [stderr]    |
[INFO] [stderr] 74 | fn make_copy(some_integer: i32) {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `change`
[INFO] [stderr]   --> src/ownership.rs:78:4
[INFO] [stderr]    |
[INFO] [stderr] 78 | fn change(some_string: &mut String) {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `first_word`
[INFO] [stderr]   --> src/ownership.rs:93:4
[INFO] [stderr]    |
[INFO] [stderr] 93 | fn first_word(s: &String) -> usize {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `slice_first_word`
[INFO] [stderr]    --> src/ownership.rs:104:4
[INFO] [stderr]     |
[INFO] [stderr] 104 | fn slice_first_word(s: &mut String) -> &str {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `slice_second_word`
[INFO] [stderr]    --> src/ownership.rs:115:4
[INFO] [stderr]     |
[INFO] [stderr] 115 | fn slice_second_word(s: &mut String) -> &str {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `User`
[INFO] [stderr]  --> src/structs.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct User {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `structs_test`
[INFO] [stderr]  --> src/structs.rs:8:15
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub(crate) fn structs_test() {
[INFO] [stderr]   |               ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `width`
[INFO] [stderr]   --> src/structs.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     width: u32,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/structs.rs:63:10
[INFO] [stderr]    |
[INFO] [stderr] 63 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `height`
[INFO] [stderr]   --> src/structs.rs:66:5
[INFO] [stderr]    |
[INFO] [stderr] 66 |     height: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/structs.rs:63:10
[INFO] [stderr]    |
[INFO] [stderr] 63 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `area`
[INFO] [stderr]   --> src/structs.rs:72:8
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn area(&self) -> u32 {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `can_hold`
[INFO] [stderr]   --> src/structs.rs:77:8
[INFO] [stderr]    |
[INFO] [stderr] 77 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `square`
[INFO] [stderr]   --> src/structs.rs:82:8
[INFO] [stderr]    |
[INFO] [stderr] 82 |     fn square(size: u32) -> Rectangle {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `build_user`
[INFO] [stderr]   --> src/structs.rs:90:4
[INFO] [stderr]    |
[INFO] [stderr] 90 | fn build_user(email: String, username: String) -> User {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `update_struct`
[INFO] [stderr]   --> src/structs.rs:99:4
[INFO] [stderr]    |
[INFO] [stderr] 99 | fn update_struct(user1: User, email: String, username: String) -> User {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tuple_structs`
[INFO] [stderr]    --> src/structs.rs:107:4
[INFO] [stderr]     |
[INFO] [stderr] 107 | fn tuple_structs() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `HAMBURGER_PRICE`
[INFO] [stderr]  --> src/project_manager.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |         const HAMBURGER_PRICE: u8 = 20;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `SANDWICH_PRICE`
[INFO] [stderr]  --> src/project_manager.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |         const SANDWICH_PRICE: u8 = 15;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Sandwich`
[INFO] [stderr]   --> src/project_manager.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |             Sandwich,
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Menu` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/project_manager.rs:8:18
[INFO] [stderr]    |
[INFO] [stderr] 8  |         #[derive(Debug)]
[INFO] [stderr]    |                  ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `price`
[INFO] [stderr]   --> src/project_manager.rs:16:16
[INFO] [stderr]    |
[INFO] [stderr] 16 |             fn price(name: Menu) -> u8 {
[INFO] [stderr]    |                ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `take_order`
[INFO] [stderr]   --> src/project_manager.rs:37:12
[INFO] [stderr]    |
[INFO] [stderr] 37 |         fn take_order() {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `serve_order`
[INFO] [stderr]   --> src/project_manager.rs:42:12
[INFO] [stderr]    |
[INFO] [stderr] 42 |         fn serve_order() {}
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `take_payment`
[INFO] [stderr]   --> src/project_manager.rs:44:12
[INFO] [stderr]    |
[INFO] [stderr] 44 |         fn take_payment() {}
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Rust` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `rust`
[INFO] [stderr] 
[INFO] [stderr] warning: `Rust` (bin "Rust" test) generated 69 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/Rust-ddd4ddcfe732c6bd)
[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] running `Command { std: "docker" "inspect" "bd7aa548d225158f4b190889856a82be14fd8ba2dd396b27484e70b674b2113e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd7aa548d225158f4b190889856a82be14fd8ba2dd396b27484e70b674b2113e", kill_on_drop: false }`
[INFO] [stdout] bd7aa548d225158f4b190889856a82be14fd8ba2dd396b27484e70b674b2113e