[INFO] cloning repository https://github.com/happychameleon/rust_practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/happychameleon/rust_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhappychameleon%2Frust_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhappychameleon%2Frust_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ba8b97f79664bbdf148d8b35fdb8fdddb7c4f81
[INFO] checking happychameleon/rust_practice against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhappychameleon%2Frust_practice" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/happychameleon/rust_practice on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/happychameleon/rust_practice
[INFO] finished tweaking git repo https://github.com/happychameleon/rust_practice
[INFO] tweaked toml for git repo https://github.com/happychameleon/rust_practice written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/happychameleon/rust_practice 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8f86bde0e857ffd5685bd893c9db198673facfd6bbc8cc4294e168db5d69b32
[INFO] running `Command { std: "docker" "start" "-a" "e8f86bde0e857ffd5685bd893c9db198673facfd6bbc8cc4294e168db5d69b32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8f86bde0e857ffd5685bd893c9db198673facfd6bbc8cc4294e168db5d69b32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8f86bde0e857ffd5685bd893c9db198673facfd6bbc8cc4294e168db5d69b32", kill_on_drop: false }`
[INFO] [stdout] e8f86bde0e857ffd5685bd893c9db198673facfd6bbc8cc4294e168db5d69b32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45c1d84ad06af9691d0be07b51acc923ed654e8f1f3d973938ace0e6ee18ec4e
[INFO] running `Command { std: "docker" "start" "-a" "45c1d84ad06af9691d0be07b51acc923ed654e8f1f3d973938ace0e6ee18ec4e", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_by_example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `Foo_two` should have an upper camel case name
[INFO] [stdout]     --> src/main.rs:1088:6
[INFO] [stdout]      |
[INFO] [stdout] 1088 | enum Foo_two {
[INFO] [stdout]      |      ^^^^^^^ help: convert the identifier to upper camel case: `FooTwo`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]     --> src/main.rs:1150:9
[INFO] [stdout]      |
[INFO] [stdout] 1150 |         'inner: loop {
[INFO] [stdout]      |         ^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Point_new` should have an upper camel case name
[INFO] [stdout]     --> src/main.rs:1551:8
[INFO] [stdout]      |
[INFO] [stdout] 1551 | struct Point_new {
[INFO] [stdout]      |        ^^^^^^^^^ help: convert the identifier to upper camel case: `PointNew`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Rectangle_new` should have an upper camel case name
[INFO] [stdout]     --> src/main.rs:1571:8
[INFO] [stdout]      |
[INFO] [stdout] 1571 | struct Rectangle_new {
[INFO] [stdout]      |        ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `RectangleNew`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/main.rs:1587:9
[INFO] [stdout]      |
[INFO] [stdout] 1587 |         ((x1 - x2).abs() + (y1 - y2).abs())
[INFO] [stdout]      |         ^                                 ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1587 -         ((x1 - x2).abs() + (y1 - y2).abs())
[INFO] [stdout] 1587 +         (x1 - x2).abs() + (y1 - y2).abs()
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Pair_new` should have an upper camel case name
[INFO] [stdout]     --> src/main.rs:1609:8
[INFO] [stdout]      |
[INFO] [stdout] 1609 | struct Pair_new(Box<i32>, Box<i32>);
[INFO] [stdout]      |        ^^^^^^^^ help: convert the identifier to upper camel case: `PairNew`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Foo_two` should have an upper camel case name
[INFO] [stdout]     --> src/main.rs:1088:6
[INFO] [stdout]      |
[INFO] [stdout] 1088 | enum Foo_two {
[INFO] [stdout]      |      ^^^^^^^ help: convert the identifier to upper camel case: `FooTwo`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]     --> src/main.rs:1150:9
[INFO] [stdout]      |
[INFO] [stdout] 1150 |         'inner: loop {
[INFO] [stdout]      |         ^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Point_new` should have an upper camel case name
[INFO] [stdout]     --> src/main.rs:1551:8
[INFO] [stdout]      |
[INFO] [stdout] 1551 | struct Point_new {
[INFO] [stdout]      |        ^^^^^^^^^ help: convert the identifier to upper camel case: `PointNew`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Rectangle_new` should have an upper camel case name
[INFO] [stdout]     --> src/main.rs:1571:8
[INFO] [stdout]      |
[INFO] [stdout] 1571 | struct Rectangle_new {
[INFO] [stdout]      |        ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `RectangleNew`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/main.rs:1587:9
[INFO] [stdout]      |
[INFO] [stdout] 1587 |         ((x1 - x2).abs() + (y1 - y2).abs())
[INFO] [stdout]      |         ^                                 ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1587 -         ((x1 - x2).abs() + (y1 - y2).abs())
[INFO] [stdout] 1587 +         (x1 - x2).abs() + (y1 - y2).abs()
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Pair_new` should have an upper camel case name
[INFO] [stdout]     --> src/main.rs:1609:8
[INFO] [stdout]      |
[INFO] [stdout] 1609 | struct Pair_new(Box<i32>, Box<i32>);
[INFO] [stdout]      |        ^^^^^^^^ help: convert the identifier to upper camel case: `PairNew`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `logical`
[INFO] [stdout]    --> src/main.rs:287:9
[INFO] [stdout]     |
[INFO] [stdout] 287 |     let logical: bool = true;
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_logical`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_float`
[INFO] [stdout]    --> src/main.rs:289:9
[INFO] [stdout]     |
[INFO] [stdout] 289 |     let a_float: f64 = 1.0; // Regualr annotation
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_float`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `an_integer`
[INFO] [stdout]    --> src/main.rs:290:9
[INFO] [stdout]     |
[INFO] [stdout] 290 |     let an_integer = 5i32; // Suffix annotation
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_an_integer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `default_float`
[INFO] [stdout]    --> src/main.rs:293:9
[INFO] [stdout]     |
[INFO] [stdout] 293 |     let default_float = 3.0; // `f64`
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_float`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `default_intager`
[INFO] [stdout]    --> src/main.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |     let default_intager = 7; // `i32`
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_intager`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `inferred_type` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:297:13
[INFO] [stdout]     |
[INFO] [stdout] 297 |     let mut inferred_type =  12; // Type i64 is inferred from another line
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_inferred_type` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `inferred_type` is never read
[INFO] [stdout]    --> src/main.rs:298:5
[INFO] [stdout]     |
[INFO] [stdout] 298 |     inferred_type = 4294967296i64;
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `mutable` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:301:13
[INFO] [stdout]     |
[INFO] [stdout] 301 |     let mut mutable = 12; // Mutable `i32`
[INFO] [stdout]     |             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_mutable` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `mutable` is never read
[INFO] [stdout]    --> src/main.rs:302:5
[INFO] [stdout]     |
[INFO] [stdout] 302 |     mutable = 21;
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mutable`
[INFO] [stdout]    --> src/main.rs:308:9
[INFO] [stdout]     |
[INFO] [stdout] 308 |     let mutable = true;
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `logical`
[INFO] [stdout]    --> src/main.rs:287:9
[INFO] [stdout]     |
[INFO] [stdout] 287 |     let logical: bool = true;
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_logical`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_float`
[INFO] [stdout]    --> src/main.rs:289:9
[INFO] [stdout]     |
[INFO] [stdout] 289 |     let a_float: f64 = 1.0; // Regualr annotation
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_float`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `an_integer`
[INFO] [stdout]    --> src/main.rs:290:9
[INFO] [stdout]     |
[INFO] [stdout] 290 |     let an_integer = 5i32; // Suffix annotation
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_an_integer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `default_float`
[INFO] [stdout]    --> src/main.rs:293:9
[INFO] [stdout]     |
[INFO] [stdout] 293 |     let default_float = 3.0; // `f64`
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_float`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `default_intager`
[INFO] [stdout]    --> src/main.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |     let default_intager = 7; // `i32`
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_intager`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `inferred_type` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:297:13
[INFO] [stdout]     |
[INFO] [stdout] 297 |     let mut inferred_type =  12; // Type i64 is inferred from another line
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_inferred_type` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `inferred_type` is never read
[INFO] [stdout]    --> src/main.rs:298:5
[INFO] [stdout]     |
[INFO] [stdout] 298 |     inferred_type = 4294967296i64;
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `mutable` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:301:13
[INFO] [stdout]     |
[INFO] [stdout] 301 |     let mut mutable = 12; // Mutable `i32`
[INFO] [stdout]     |             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_mutable` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `mutable` is never read
[INFO] [stdout]    --> src/main.rs:302:5
[INFO] [stdout]     |
[INFO] [stdout] 302 |     mutable = 21;
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mutable`
[INFO] [stdout]    --> src/main.rs:308:9
[INFO] [stdout]     |
[INFO] [stdout] 308 |     let mutable = true;
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/main.rs:617:9
[INFO] [stdout]     |
[INFO] [stdout] 617 |     let x = Operations::Add;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/main.rs:617:9
[INFO] [stdout]     |
[INFO] [stdout] 617 |     let x = Operations::Add;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]     --> src/main.rs:1475:25
[INFO] [stdout]      |
[INFO] [stdout] 1475 |     if let Foo_two::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/main.rs:1475:25
[INFO] [stdout]      |
[INFO] [stdout] 1475 |     if let Foo_two::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 `formatted` is never used
[INFO] [stdout]   --> src/main.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn formatted(){
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Structure` is never constructed
[INFO] [stdout]   --> src/main.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | struct Structure(i32);
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Deep` is never constructed
[INFO] [stdout]   --> src/main.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | struct Deep(Structure);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]   --> src/main.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | struct Person <'a> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `debug` is never used
[INFO] [stdout]   --> src/main.rs:97:4
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn debug(){
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StructureTwo` is never constructed
[INFO] [stdout]    --> src/main.rs:133:8
[INFO] [stdout]     |
[INFO] [stdout] 133 | struct StructureTwo(i32);
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MinMax` is never constructed
[INFO] [stdout]    --> src/main.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 143 | struct MinMax(i64, i64);
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point2D` is never constructed
[INFO] [stdout]    --> src/main.rs:152:8
[INFO] [stdout]     |
[INFO] [stdout] 152 | struct Point2D {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Complex` is never constructed
[INFO] [stdout]    --> src/main.rs:164:8
[INFO] [stdout]     |
[INFO] [stdout] 164 | struct Complex {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `List` is never constructed
[INFO] [stdout]    --> src/main.rs:175:8
[INFO] [stdout]     |
[INFO] [stdout] 175 | struct List(Vec<i32>);
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `display` is never used
[INFO] [stdout]    --> src/main.rs:199:4
[INFO] [stdout]     |
[INFO] [stdout] 199 | fn display(){
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `City` is never constructed
[INFO] [stdout]    --> src/main.rs:234:8
[INFO] [stdout]     |
[INFO] [stdout] 234 | struct City {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]    --> src/main.rs:254:8
[INFO] [stdout]     |
[INFO] [stdout] 254 | struct Color {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `formatting` is never used
[INFO] [stdout]    --> src/main.rs:266:4
[INFO] [stdout]     |
[INFO] [stdout] 266 | fn formatting() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `primitives` is never used
[INFO] [stdout]    --> src/main.rs:285:4
[INFO] [stdout]     |
[INFO] [stdout] 285 | fn primitives() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lit_op` is never used
[INFO] [stdout]    --> src/main.rs:313:4
[INFO] [stdout]     |
[INFO] [stdout] 313 | fn lit_op() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reverse` is never used
[INFO] [stdout]    --> src/main.rs:339:4
[INFO] [stdout]     |
[INFO] [stdout] 339 | fn reverse(pair: (i32, bool)) -> (bool, i32) {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `transpose` is never used
[INFO] [stdout]    --> src/main.rs:347:4
[INFO] [stdout]     |
[INFO] [stdout] 347 | fn transpose(matrix: Matrix) -> Matrix {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Matrix` is never constructed
[INFO] [stdout]    --> src/main.rs:358:8
[INFO] [stdout]     |
[INFO] [stdout] 358 | struct Matrix(f32, f32, f32, f32);
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tuples` is never used
[INFO] [stdout]    --> src/main.rs:367:4
[INFO] [stdout]     |
[INFO] [stdout] 367 | fn tuples() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `analyze_slice` is never used
[INFO] [stdout]    --> src/main.rs:409:4
[INFO] [stdout]     |
[INFO] [stdout] 409 | fn analyze_slice(slice: &[i32]) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `arsli` is never used
[INFO] [stdout]    --> src/main.rs:414:4
[INFO] [stdout]     |
[INFO] [stdout] 414 | fn arsli() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PersonOne` is never constructed
[INFO] [stdout]    --> src/main.rs:450:8
[INFO] [stdout]     |
[INFO] [stdout] 450 | struct PersonOne<'a> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NilOne` is never constructed
[INFO] [stdout]    --> src/main.rs:457:8
[INFO] [stdout]     |
[INFO] [stdout] 457 | struct NilOne;
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]    --> src/main.rs:460:8
[INFO] [stdout]     |
[INFO] [stdout] 460 | struct Pair(i32, f32);
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]    --> src/main.rs:465:5
[INFO] [stdout]     |
[INFO] [stdout] 464 | struct Point {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] 465 |     x: f32,
[INFO] [stdout]     |     ^
[INFO] [stdout] 466 |     y: f32,
[INFO] [stdout]     |     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Point` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rect_area` is never used
[INFO] [stdout]    --> src/main.rs:479:4
[INFO] [stdout]     |
[INFO] [stdout] 479 | fn rect_area (rect: &Rectangle) -> f32 {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `square` is never used
[INFO] [stdout]    --> src/main.rs:487:4
[INFO] [stdout]     |
[INFO] [stdout] 487 | fn square(point: &Point, l: f32) -> Rectangle {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `structures` is never used
[INFO] [stdout]    --> src/main.rs:495:4
[INFO] [stdout]     |
[INFO] [stdout] 495 | fn structures() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `WebEvent` is never used
[INFO] [stdout]    --> src/main.rs:557:6
[INFO] [stdout]     |
[INFO] [stdout] 557 | enum WebEvent {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `VeryVerboseEnumOfThingsToDoWithNumbers` is never used
[INFO] [stdout]    --> src/main.rs:568:6
[INFO] [stdout]     |
[INFO] [stdout] 568 | enum VeryVerboseEnumOfThingsToDoWithNumbers {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `run` is never used
[INFO] [stdout]    --> src/main.rs:574:8
[INFO] [stdout]     |
[INFO] [stdout] 573 | impl VeryVerboseEnumOfThingsToDoWithNumbers {
[INFO] [stdout]     | ------------------------------------------- method in this implementation
[INFO] [stdout] 574 |     fn run(&self, x: i32, y: i32) -> i32 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Operations` is never used
[INFO] [stdout]    --> src/main.rs:583:6
[INFO] [stdout]     |
[INFO] [stdout] 583 | type Operations = VeryVerboseEnumOfThingsToDoWithNumbers;
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `inspect` is never used
[INFO] [stdout]    --> src/main.rs:587:4
[INFO] [stdout]     |
[INFO] [stdout] 587 | fn inspect(event: WebEvent) {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `enums` is never used
[INFO] [stdout]    --> src/main.rs:601:4
[INFO] [stdout]     |
[INFO] [stdout] 601 | fn enums() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Status` is never used
[INFO] [stdout]    --> src/main.rs:623:6
[INFO] [stdout]     |
[INFO] [stdout] 623 | enum Status {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `formatted` is never used
[INFO] [stdout]   --> src/main.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn formatted(){
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Work` is never used
[INFO] [stdout]    --> src/main.rs:628:6
[INFO] [stdout]     |
[INFO] [stdout] 628 | enum Work {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `enumUse` is never used
[INFO] [stdout]    --> src/main.rs:633:4
[INFO] [stdout]     |
[INFO] [stdout] 633 | fn enumUse() {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Structure` is never constructed
[INFO] [stdout]   --> src/main.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | struct Structure(i32);
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Number` is never used
[INFO] [stdout]    --> src/main.rs:661:6
[INFO] [stdout]     |
[INFO] [stdout] 661 | enum Number {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Deep` is never constructed
[INFO] [stdout]   --> src/main.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | struct Deep(Structure);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ColorTwo` is never used
[INFO] [stdout]    --> src/main.rs:668:6
[INFO] [stdout]     |
[INFO] [stdout] 668 | enum ColorTwo {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]   --> src/main.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | struct Person <'a> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clike` is never used
[INFO] [stdout]    --> src/main.rs:674:4
[INFO] [stdout]     |
[INFO] [stdout] 674 | fn clike() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `debug` is never used
[INFO] [stdout]   --> src/main.rs:97:4
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn debug(){
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ListNew` is never used
[INFO] [stdout]    --> src/main.rs:687:6
[INFO] [stdout]     |
[INFO] [stdout] 687 | enum ListNew {
[INFO] [stdout]     |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StructureTwo` is never constructed
[INFO] [stdout]    --> src/main.rs:133:8
[INFO] [stdout]     |
[INFO] [stdout] 133 | struct StructureTwo(i32);
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MinMax` is never constructed
[INFO] [stdout]    --> src/main.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 143 | struct MinMax(i64, i64);
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `prepend`, `len`, and `stringify` are never used
[INFO] [stdout]    --> src/main.rs:697:8
[INFO] [stdout]     |
[INFO] [stdout] 695 | impl ListNew {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] 696 |     // Create an empty list
[INFO] [stdout] 697 |     fn new() -> ListNew {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 703 |     fn prepend(self, elem: u32) -> ListNew {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 709 |     fn len(&self) -> u32 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 724 |     fn stringify(&self) -> String {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point2D` is never constructed
[INFO] [stdout]    --> src/main.rs:152:8
[INFO] [stdout]     |
[INFO] [stdout] 152 | struct Point2D {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `enum_testcase` is never used
[INFO] [stdout]    --> src/main.rs:738:4
[INFO] [stdout]     |
[INFO] [stdout] 738 | fn enum_testcase() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Complex` is never constructed
[INFO] [stdout]    --> src/main.rs:164:8
[INFO] [stdout]     |
[INFO] [stdout] 164 | struct Complex {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `LANGUAGE` is never used
[INFO] [stdout]    --> src/main.rs:756:8
[INFO] [stdout]     |
[INFO] [stdout] 756 | static LANGUAGE: &str = "Rust";
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `List` is never constructed
[INFO] [stdout]    --> src/main.rs:175:8
[INFO] [stdout]     |
[INFO] [stdout] 175 | struct List(Vec<i32>);
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `THRESHOLD` is never used
[INFO] [stdout]    --> src/main.rs:757:7
[INFO] [stdout]     |
[INFO] [stdout] 757 | const THRESHOLD: i32 = 10;
[INFO] [stdout]     |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `display` is never used
[INFO] [stdout]    --> src/main.rs:199:4
[INFO] [stdout]     |
[INFO] [stdout] 199 | fn display(){
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_big` is never used
[INFO] [stdout]    --> src/main.rs:759:4
[INFO] [stdout]     |
[INFO] [stdout] 759 | fn is_big(n: i32) -> bool {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `City` is never constructed
[INFO] [stdout]    --> src/main.rs:234:8
[INFO] [stdout]     |
[INFO] [stdout] 234 | struct City {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `constants` is never used
[INFO] [stdout]    --> src/main.rs:764:4
[INFO] [stdout]     |
[INFO] [stdout] 764 | fn constants() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]    --> src/main.rs:254:8
[INFO] [stdout]     |
[INFO] [stdout] 254 | struct Color {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `varbind` is never used
[INFO] [stdout]    --> src/main.rs:778:4
[INFO] [stdout]     |
[INFO] [stdout] 778 | fn varbind() {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `formatting` is never used
[INFO] [stdout]    --> src/main.rs:266:4
[INFO] [stdout]     |
[INFO] [stdout] 266 | fn formatting() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mutability` is never used
[INFO] [stdout]    --> src/main.rs:799:4
[INFO] [stdout]     |
[INFO] [stdout] 799 | fn mutability() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `primitives` is never used
[INFO] [stdout]    --> src/main.rs:285:4
[INFO] [stdout]     |
[INFO] [stdout] 285 | fn primitives() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `scope_shadow` is never used
[INFO] [stdout]    --> src/main.rs:817:4
[INFO] [stdout]     |
[INFO] [stdout] 817 | fn scope_shadow() {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lit_op` is never used
[INFO] [stdout]    --> src/main.rs:313:4
[INFO] [stdout]     |
[INFO] [stdout] 313 | fn lit_op() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `declare_first` is never used
[INFO] [stdout]    --> src/main.rs:848:4
[INFO] [stdout]     |
[INFO] [stdout] 848 | fn declare_first() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `casting` is never used
[INFO] [stdout]    --> src/main.rs:877:4
[INFO] [stdout]     |
[INFO] [stdout] 877 | fn casting() {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reverse` is never used
[INFO] [stdout]    --> src/main.rs:339:4
[INFO] [stdout]     |
[INFO] [stdout] 339 | fn reverse(pair: (i32, bool)) -> (bool, i32) {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `literals` is never used
[INFO] [stdout]    --> src/main.rs:924:4
[INFO] [stdout]     |
[INFO] [stdout] 924 | fn literals() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `transpose` is never used
[INFO] [stdout]    --> src/main.rs:347:4
[INFO] [stdout]     |
[INFO] [stdout] 347 | fn transpose(matrix: Matrix) -> Matrix {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `inference` is never used
[INFO] [stdout]    --> src/main.rs:944:4
[INFO] [stdout]     |
[INFO] [stdout] 944 | fn inference() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `NanoSecond` is never used
[INFO] [stdout]    --> src/main.rs:962:6
[INFO] [stdout]     |
[INFO] [stdout] 962 | type NanoSecond = u64;
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Matrix` is never constructed
[INFO] [stdout]    --> src/main.rs:358:8
[INFO] [stdout]     |
[INFO] [stdout] 358 | struct Matrix(f32, f32, f32, f32);
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Inch` is never used
[INFO] [stdout]    --> src/main.rs:963:6
[INFO] [stdout]     |
[INFO] [stdout] 963 | type Inch = u64;
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tuples` is never used
[INFO] [stdout]    --> src/main.rs:367:4
[INFO] [stdout]     |
[INFO] [stdout] 367 | fn tuples() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `aliasing` is never used
[INFO] [stdout]    --> src/main.rs:967:4
[INFO] [stdout]     |
[INFO] [stdout] 967 | fn aliasing() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `analyze_slice` is never used
[INFO] [stdout]    --> src/main.rs:409:4
[INFO] [stdout]     |
[INFO] [stdout] 409 | fn analyze_slice(slice: &[i32]) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]    --> src/main.rs:985:6
[INFO] [stdout]     |
[INFO] [stdout] 984 | struct NumberTwo {
[INFO] [stdout]     |        --------- field in this struct
[INFO] [stdout] 985 |      value: i32,
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `NumberTwo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `arsli` is never used
[INFO] [stdout]    --> src/main.rs:414:4
[INFO] [stdout]     |
[INFO] [stdout] 414 | fn arsli() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `from_and_into` is never used
[INFO] [stdout]    --> src/main.rs:994:4
[INFO] [stdout]     |
[INFO] [stdout] 994 | fn from_and_into() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PersonOne` is never constructed
[INFO] [stdout]    --> src/main.rs:450:8
[INFO] [stdout]     |
[INFO] [stdout] 450 | struct PersonOne<'a> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tryfrom_tryinto` is never used
[INFO] [stdout]     --> src/main.rs:1024:4
[INFO] [stdout]      |
[INFO] [stdout] 1024 | fn tryfrom_tryinto() {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Circle` is never constructed
[INFO] [stdout]     --> src/main.rs:1042:8
[INFO] [stdout]      |
[INFO] [stdout] 1042 | struct Circle {
[INFO] [stdout]      |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NilOne` is never constructed
[INFO] [stdout]    --> src/main.rs:457:8
[INFO] [stdout]     |
[INFO] [stdout] 457 | struct NilOne;
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]    --> src/main.rs:460:8
[INFO] [stdout]     |
[INFO] [stdout] 460 | struct Pair(i32, f32);
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_from_strings` is never used
[INFO] [stdout]     --> src/main.rs:1052:4
[INFO] [stdout]      |
[INFO] [stdout] 1052 | fn to_from_strings() {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Color3` is never used
[INFO] [stdout]     --> src/main.rs:1066:6
[INFO] [stdout]      |
[INFO] [stdout] 1066 | enum Color3 {
[INFO] [stdout]      |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]    --> src/main.rs:465:5
[INFO] [stdout]     |
[INFO] [stdout] 464 | struct Point {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] 465 |     x: f32,
[INFO] [stdout]     |     ^
[INFO] [stdout] 466 |     y: f32,
[INFO] [stdout]     |     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Point` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `age` is never used
[INFO] [stdout]     --> src/main.rs:1080:4
[INFO] [stdout]      |
[INFO] [stdout] 1080 | fn age() -> u32 {
[INFO] [stdout]      |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_number` is never used
[INFO] [stdout]     --> src/main.rs:1084:4
[INFO] [stdout]      |
[INFO] [stdout] 1084 | fn some_number() -> Option<u32> {
[INFO] [stdout]      |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rect_area` is never used
[INFO] [stdout]    --> src/main.rs:479:4
[INFO] [stdout]     |
[INFO] [stdout] 479 | fn rect_area (rect: &Rectangle) -> f32 {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Foo_two` is never used
[INFO] [stdout]     --> src/main.rs:1088:6
[INFO] [stdout]      |
[INFO] [stdout] 1088 | enum Foo_two {
[INFO] [stdout]      |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `flow_control` is never used
[INFO] [stdout]     --> src/main.rs:1094:4
[INFO] [stdout]      |
[INFO] [stdout] 1094 | fn flow_control() {
[INFO] [stdout]      |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `square` is never used
[INFO] [stdout]    --> src/main.rs:487:4
[INFO] [stdout]     |
[INFO] [stdout] 487 | fn square(point: &Point, l: f32) -> Rectangle {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `functioned_fizzbuzz` is never used
[INFO] [stdout]     --> src/main.rs:1510:4
[INFO] [stdout]      |
[INFO] [stdout] 1510 | fn functioned_fizzbuzz() {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `structures` is never used
[INFO] [stdout]    --> src/main.rs:495:4
[INFO] [stdout]     |
[INFO] [stdout] 495 | fn structures() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_divisible_by` is never used
[INFO] [stdout]     --> src/main.rs:1516:4
[INFO] [stdout]      |
[INFO] [stdout] 1516 | fn is_divisible_by(lhs: u32, rhs: u32) -> bool {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fizzbuzz` is never used
[INFO] [stdout]     --> src/main.rs:1527:4
[INFO] [stdout]      |
[INFO] [stdout] 1527 | fn fizzbuzz(n: u32) -> () {
[INFO] [stdout]      |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `WebEvent` is never used
[INFO] [stdout]    --> src/main.rs:557:6
[INFO] [stdout]     |
[INFO] [stdout] 557 | enum WebEvent {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fizzbuzz_to` is never used
[INFO] [stdout]     --> src/main.rs:1541:4
[INFO] [stdout]      |
[INFO] [stdout] 1541 | fn fizzbuzz_to(n: u32) {
[INFO] [stdout]      |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point_new` is never constructed
[INFO] [stdout]     --> src/main.rs:1551:8
[INFO] [stdout]      |
[INFO] [stdout] 1551 | struct Point_new {
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `VeryVerboseEnumOfThingsToDoWithNumbers` is never used
[INFO] [stdout]    --> src/main.rs:568:6
[INFO] [stdout]     |
[INFO] [stdout] 568 | enum VeryVerboseEnumOfThingsToDoWithNumbers {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `run` is never used
[INFO] [stdout]    --> src/main.rs:574:8
[INFO] [stdout]     |
[INFO] [stdout] 573 | impl VeryVerboseEnumOfThingsToDoWithNumbers {
[INFO] [stdout]     | ------------------------------------------- method in this implementation
[INFO] [stdout] 574 |     fn run(&self, x: i32, y: i32) -> i32 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `origin` and `new` are never used
[INFO] [stdout]     --> src/main.rs:1561:8
[INFO] [stdout]      |
[INFO] [stdout] 1557 | impl Point_new {
[INFO] [stdout]      | -------------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1561 |     fn origin() -> Point_new {
[INFO] [stdout]      |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1566 |     fn new( x: f64, y: f64 ) -> Point_new {
[INFO] [stdout]      |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle_new` is never constructed
[INFO] [stdout]     --> src/main.rs:1571:8
[INFO] [stdout]      |
[INFO] [stdout] 1571 | struct Rectangle_new {
[INFO] [stdout]      |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Operations` is never used
[INFO] [stdout]    --> src/main.rs:583:6
[INFO] [stdout]     |
[INFO] [stdout] 583 | type Operations = VeryVerboseEnumOfThingsToDoWithNumbers;
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `inspect` is never used
[INFO] [stdout]    --> src/main.rs:587:4
[INFO] [stdout]     |
[INFO] [stdout] 587 | fn inspect(event: WebEvent) {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `enums` is never used
[INFO] [stdout]    --> src/main.rs:601:4
[INFO] [stdout]     |
[INFO] [stdout] 601 | fn enums() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `area`, `perimeter`, and `translate` are never used
[INFO] [stdout]     --> src/main.rs:1580:8
[INFO] [stdout]      |
[INFO] [stdout] 1576 | impl Rectangle_new {
[INFO] [stdout]      | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1580 |     fn area(&self) -> f64 {
[INFO] [stdout]      |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1590 |     fn perimeter(&self) -> f64 {
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1599 |     fn translate(&mut self, x: f64, y: f64) {
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Status` is never used
[INFO] [stdout]    --> src/main.rs:623:6
[INFO] [stdout]     |
[INFO] [stdout] 623 | enum Status {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair_new` is never constructed
[INFO] [stdout]     --> src/main.rs:1609:8
[INFO] [stdout]      |
[INFO] [stdout] 1609 | struct Pair_new(Box<i32>, Box<i32>);
[INFO] [stdout]      |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Work` is never used
[INFO] [stdout]    --> src/main.rs:628:6
[INFO] [stdout]     |
[INFO] [stdout] 628 | enum Work {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `enumUse` is never used
[INFO] [stdout]    --> src/main.rs:633:4
[INFO] [stdout]     |
[INFO] [stdout] 633 | fn enumUse() {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `destroy` is never used
[INFO] [stdout]     --> src/main.rs:1614:8
[INFO] [stdout]      |
[INFO] [stdout] 1611 | impl Pair_new {
[INFO] [stdout]      | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1614 |     fn destroy(self) {
[INFO] [stdout]      |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Number` is never used
[INFO] [stdout]    --> src/main.rs:661:6
[INFO] [stdout]     |
[INFO] [stdout] 661 | enum Number {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `methods` is never used
[INFO] [stdout]     --> src/main.rs:1624:4
[INFO] [stdout]      |
[INFO] [stdout] 1624 | fn methods() {
[INFO] [stdout]      |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ColorTwo` is never used
[INFO] [stdout]    --> src/main.rs:668:6
[INFO] [stdout]     |
[INFO] [stdout] 668 | enum ColorTwo {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply` is never used
[INFO] [stdout]     --> src/main.rs:1653:4
[INFO] [stdout]      |
[INFO] [stdout] 1653 | fn apply<F>(f: F) where
[INFO] [stdout]      |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clike` is never used
[INFO] [stdout]    --> src/main.rs:674:4
[INFO] [stdout]     |
[INFO] [stdout] 674 | fn clike() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply_to_3` is never used
[INFO] [stdout]     --> src/main.rs:1661:4
[INFO] [stdout]      |
[INFO] [stdout] 1661 | fn apply_to_3<F>(f: F) -> i32 where
[INFO] [stdout]      |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ListNew` is never used
[INFO] [stdout]    --> src/main.rs:687:6
[INFO] [stdout]     |
[INFO] [stdout] 687 | enum ListNew {
[INFO] [stdout]     |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply_fn` is never used
[INFO] [stdout]     --> src/main.rs:1670:4
[INFO] [stdout]      |
[INFO] [stdout] 1670 | fn apply_fn<F>(f: F) where
[INFO] [stdout]      |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `call_me` is never used
[INFO] [stdout]     --> src/main.rs:1677:4
[INFO] [stdout]      |
[INFO] [stdout] 1677 | fn call_me<F: Fn()>(f: F) {
[INFO] [stdout]      |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_function` is never used
[INFO] [stdout]     --> src/main.rs:1682:4
[INFO] [stdout]      |
[INFO] [stdout] 1682 | fn example_function() {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_fn` is never used
[INFO] [stdout]     --> src/main.rs:1686:4
[INFO] [stdout]      |
[INFO] [stdout] 1686 | fn create_fn() -> impl Fn() {
[INFO] [stdout]      |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `prepend`, `len`, and `stringify` are never used
[INFO] [stdout]    --> src/main.rs:697:8
[INFO] [stdout]     |
[INFO] [stdout] 695 | impl ListNew {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] 696 |     // Create an empty list
[INFO] [stdout] 697 |     fn new() -> ListNew {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 703 |     fn prepend(self, elem: u32) -> ListNew {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 709 |     fn len(&self) -> u32 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 724 |     fn stringify(&self) -> String {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_fnmut` is never used
[INFO] [stdout]     --> src/main.rs:1692:4
[INFO] [stdout]      |
[INFO] [stdout] 1692 | fn create_fnmut() -> impl FnMut() {
[INFO] [stdout]      |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_fnonce` is never used
[INFO] [stdout]     --> src/main.rs:1698:4
[INFO] [stdout]      |
[INFO] [stdout] 1698 | fn create_fnonce() -> impl FnOnce() {
[INFO] [stdout]      |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `enum_testcase` is never used
[INFO] [stdout]    --> src/main.rs:738:4
[INFO] [stdout]     |
[INFO] [stdout] 738 | fn enum_testcase() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `closures` is never used
[INFO] [stdout]     --> src/main.rs:1704:4
[INFO] [stdout]      |
[INFO] [stdout] 1704 | fn closures() {
[INFO] [stdout]      |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `LANGUAGE` is never used
[INFO] [stdout]    --> src/main.rs:756:8
[INFO] [stdout]     |
[INFO] [stdout] 756 | static LANGUAGE: &str = "Rust";
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_odd` is never used
[INFO] [stdout]     --> src/main.rs:1929:4
[INFO] [stdout]      |
[INFO] [stdout] 1929 | fn is_odd(n: u32) -> bool {
[INFO] [stdout]      |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `THRESHOLD` is never used
[INFO] [stdout]    --> src/main.rs:757:7
[INFO] [stdout]     |
[INFO] [stdout] 757 | const THRESHOLD: i32 = 10;
[INFO] [stdout]     |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hof` is never used
[INFO] [stdout]     --> src/main.rs:1933:4
[INFO] [stdout]      |
[INFO] [stdout] 1933 | fn hof() {
[INFO] [stdout]      |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_big` is never used
[INFO] [stdout]    --> src/main.rs:759:4
[INFO] [stdout]     |
[INFO] [stdout] 759 | fn is_big(n: i32) -> bool {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `constants` is never used
[INFO] [stdout]    --> src/main.rs:764:4
[INFO] [stdout]     |
[INFO] [stdout] 764 | fn constants() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `varbind` is never used
[INFO] [stdout]    --> src/main.rs:778:4
[INFO] [stdout]     |
[INFO] [stdout] 778 | fn varbind() {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `enumUse` should have a snake case name
[INFO] [stdout]    --> src/main.rs:633:4
[INFO] [stdout]     |
[INFO] [stdout] 633 | fn enumUse() {
[INFO] [stdout]     |    ^^^^^^^ help: convert the identifier to snake case: `enum_use`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mutability` is never used
[INFO] [stdout]    --> src/main.rs:799:4
[INFO] [stdout]     |
[INFO] [stdout] 799 | fn mutability() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `scope_shadow` is never used
[INFO] [stdout]    --> src/main.rs:817:4
[INFO] [stdout]     |
[INFO] [stdout] 817 | fn scope_shadow() {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `declare_first` is never used
[INFO] [stdout]    --> src/main.rs:848:4
[INFO] [stdout]     |
[INFO] [stdout] 848 | fn declare_first() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `casting` is never used
[INFO] [stdout]    --> src/main.rs:877:4
[INFO] [stdout]     |
[INFO] [stdout] 877 | fn casting() {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]     --> src/main.rs:1890:40
[INFO] [stdout]      |
[INFO] [stdout] 1890 |     println!("2 in array2: {}", array2.into_iter().any(|&x| x == 2));
[INFO] [stdout]      |                                        ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this changes meaning in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]      = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]      |
[INFO] [stdout] 1890 |     println!("2 in array2: {}", array2.iter().any(|&x| x == 2));
[INFO] [stdout]      |                                        ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]      |
[INFO] [stdout] 1890 |     println!("2 in array2: {}", IntoIterator::into_iter(array2).any(|&x| x == 2));
[INFO] [stdout]      |                                 ++++++++++++++++++++++++      ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `literals` is never used
[INFO] [stdout]    --> src/main.rs:924:4
[INFO] [stdout]     |
[INFO] [stdout] 924 | fn literals() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `inference` is never used
[INFO] [stdout]    --> src/main.rs:944:4
[INFO] [stdout]     |
[INFO] [stdout] 944 | fn inference() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `NanoSecond` is never used
[INFO] [stdout]    --> src/main.rs:962:6
[INFO] [stdout]     |
[INFO] [stdout] 962 | type NanoSecond = u64;
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Inch` is never used
[INFO] [stdout]    --> src/main.rs:963:6
[INFO] [stdout]     |
[INFO] [stdout] 963 | type Inch = u64;
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]     --> src/main.rs:1915:47
[INFO] [stdout]      |
[INFO] [stdout] 1915 |     println!("Find 2 in array4: {:?}", array4.into_iter().find(|&&x| x == 2));
[INFO] [stdout]      |                                               ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this changes meaning in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]      |
[INFO] [stdout] 1915 |     println!("Find 2 in array4: {:?}", array4.iter().find(|&&x| x == 2));
[INFO] [stdout]      |                                               ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]      |
[INFO] [stdout] 1915 |     println!("Find 2 in array4: {:?}", IntoIterator::into_iter(array4).find(|&&x| x == 2));
[INFO] [stdout]      |                                        ++++++++++++++++++++++++      ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `aliasing` is never used
[INFO] [stdout]    --> src/main.rs:967:4
[INFO] [stdout]     |
[INFO] [stdout] 967 | fn aliasing() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]    --> src/main.rs:985:6
[INFO] [stdout]     |
[INFO] [stdout] 984 | struct NumberTwo {
[INFO] [stdout]     |        --------- field in this struct
[INFO] [stdout] 985 |      value: i32,
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `NumberTwo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `from_and_into` is never used
[INFO] [stdout]    --> src/main.rs:994:4
[INFO] [stdout]     |
[INFO] [stdout] 994 | fn from_and_into() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tryfrom_tryinto` is never used
[INFO] [stdout]     --> src/main.rs:1024:4
[INFO] [stdout]      |
[INFO] [stdout] 1024 | fn tryfrom_tryinto() {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Circle` is never constructed
[INFO] [stdout]     --> src/main.rs:1042:8
[INFO] [stdout]      |
[INFO] [stdout] 1042 | struct Circle {
[INFO] [stdout]      |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_from_strings` is never used
[INFO] [stdout]     --> src/main.rs:1052:4
[INFO] [stdout]      |
[INFO] [stdout] 1052 | fn to_from_strings() {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Color3` is never used
[INFO] [stdout]     --> src/main.rs:1066:6
[INFO] [stdout]      |
[INFO] [stdout] 1066 | enum Color3 {
[INFO] [stdout]      |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `age` is never used
[INFO] [stdout]     --> src/main.rs:1080:4
[INFO] [stdout]      |
[INFO] [stdout] 1080 | fn age() -> u32 {
[INFO] [stdout]      |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_number` is never used
[INFO] [stdout]     --> src/main.rs:1084:4
[INFO] [stdout]      |
[INFO] [stdout] 1084 | fn some_number() -> Option<u32> {
[INFO] [stdout]      |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Foo_two` is never used
[INFO] [stdout]     --> src/main.rs:1088:6
[INFO] [stdout]      |
[INFO] [stdout] 1088 | enum Foo_two {
[INFO] [stdout]      |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `flow_control` is never used
[INFO] [stdout]     --> src/main.rs:1094:4
[INFO] [stdout]      |
[INFO] [stdout] 1094 | fn flow_control() {
[INFO] [stdout]      |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `functioned_fizzbuzz` is never used
[INFO] [stdout]     --> src/main.rs:1510:4
[INFO] [stdout]      |
[INFO] [stdout] 1510 | fn functioned_fizzbuzz() {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_divisible_by` is never used
[INFO] [stdout]     --> src/main.rs:1516:4
[INFO] [stdout]      |
[INFO] [stdout] 1516 | fn is_divisible_by(lhs: u32, rhs: u32) -> bool {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fizzbuzz` is never used
[INFO] [stdout]     --> src/main.rs:1527:4
[INFO] [stdout]      |
[INFO] [stdout] 1527 | fn fizzbuzz(n: u32) -> () {
[INFO] [stdout]      |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fizzbuzz_to` is never used
[INFO] [stdout]     --> src/main.rs:1541:4
[INFO] [stdout]      |
[INFO] [stdout] 1541 | fn fizzbuzz_to(n: u32) {
[INFO] [stdout]      |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point_new` is never constructed
[INFO] [stdout]     --> src/main.rs:1551:8
[INFO] [stdout]      |
[INFO] [stdout] 1551 | struct Point_new {
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `origin` and `new` are never used
[INFO] [stdout]     --> src/main.rs:1561:8
[INFO] [stdout]      |
[INFO] [stdout] 1557 | impl Point_new {
[INFO] [stdout]      | -------------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1561 |     fn origin() -> Point_new {
[INFO] [stdout]      |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1566 |     fn new( x: f64, y: f64 ) -> Point_new {
[INFO] [stdout]      |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle_new` is never constructed
[INFO] [stdout]     --> src/main.rs:1571:8
[INFO] [stdout]      |
[INFO] [stdout] 1571 | struct Rectangle_new {
[INFO] [stdout]      |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `area`, `perimeter`, and `translate` are never used
[INFO] [stdout]     --> src/main.rs:1580:8
[INFO] [stdout]      |
[INFO] [stdout] 1576 | impl Rectangle_new {
[INFO] [stdout]      | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1580 |     fn area(&self) -> f64 {
[INFO] [stdout]      |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1590 |     fn perimeter(&self) -> f64 {
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1599 |     fn translate(&mut self, x: f64, y: f64) {
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair_new` is never constructed
[INFO] [stdout]     --> src/main.rs:1609:8
[INFO] [stdout]      |
[INFO] [stdout] 1609 | struct Pair_new(Box<i32>, Box<i32>);
[INFO] [stdout]      |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `destroy` is never used
[INFO] [stdout]     --> src/main.rs:1614:8
[INFO] [stdout]      |
[INFO] [stdout] 1611 | impl Pair_new {
[INFO] [stdout]      | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1614 |     fn destroy(self) {
[INFO] [stdout]      |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `methods` is never used
[INFO] [stdout]     --> src/main.rs:1624:4
[INFO] [stdout]      |
[INFO] [stdout] 1624 | fn methods() {
[INFO] [stdout]      |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply` is never used
[INFO] [stdout]     --> src/main.rs:1653:4
[INFO] [stdout]      |
[INFO] [stdout] 1653 | fn apply<F>(f: F) where
[INFO] [stdout]      |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply_to_3` is never used
[INFO] [stdout]     --> src/main.rs:1661:4
[INFO] [stdout]      |
[INFO] [stdout] 1661 | fn apply_to_3<F>(f: F) -> i32 where
[INFO] [stdout]      |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply_fn` is never used
[INFO] [stdout]     --> src/main.rs:1670:4
[INFO] [stdout]      |
[INFO] [stdout] 1670 | fn apply_fn<F>(f: F) where
[INFO] [stdout]      |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `call_me` is never used
[INFO] [stdout]     --> src/main.rs:1677:4
[INFO] [stdout]      |
[INFO] [stdout] 1677 | fn call_me<F: Fn()>(f: F) {
[INFO] [stdout]      |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_function` is never used
[INFO] [stdout]     --> src/main.rs:1682:4
[INFO] [stdout]      |
[INFO] [stdout] 1682 | fn example_function() {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_fn` is never used
[INFO] [stdout]     --> src/main.rs:1686:4
[INFO] [stdout]      |
[INFO] [stdout] 1686 | fn create_fn() -> impl Fn() {
[INFO] [stdout]      |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_fnmut` is never used
[INFO] [stdout]     --> src/main.rs:1692:4
[INFO] [stdout]      |
[INFO] [stdout] 1692 | fn create_fnmut() -> impl FnMut() {
[INFO] [stdout]      |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_fnonce` is never used
[INFO] [stdout]     --> src/main.rs:1698:4
[INFO] [stdout]      |
[INFO] [stdout] 1698 | fn create_fnonce() -> impl FnOnce() {
[INFO] [stdout]      |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `closures` is never used
[INFO] [stdout]     --> src/main.rs:1704:4
[INFO] [stdout]      |
[INFO] [stdout] 1704 | fn closures() {
[INFO] [stdout]      |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_odd` is never used
[INFO] [stdout]     --> src/main.rs:1929:4
[INFO] [stdout]      |
[INFO] [stdout] 1929 | fn is_odd(n: u32) -> bool {
[INFO] [stdout]      |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hof` is never used
[INFO] [stdout]     --> src/main.rs:1933:4
[INFO] [stdout]      |
[INFO] [stdout] 1933 | fn hof() {
[INFO] [stdout]      |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `enumUse` should have a snake case name
[INFO] [stdout]    --> src/main.rs:633:4
[INFO] [stdout]     |
[INFO] [stdout] 633 | fn enumUse() {
[INFO] [stdout]     |    ^^^^^^^ help: convert the identifier to snake case: `enum_use`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]     --> src/main.rs:1890:40
[INFO] [stdout]      |
[INFO] [stdout] 1890 |     println!("2 in array2: {}", array2.into_iter().any(|&x| x == 2));
[INFO] [stdout]      |                                        ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this changes meaning in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]      = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]      |
[INFO] [stdout] 1890 |     println!("2 in array2: {}", array2.iter().any(|&x| x == 2));
[INFO] [stdout]      |                                        ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]      |
[INFO] [stdout] 1890 |     println!("2 in array2: {}", IntoIterator::into_iter(array2).any(|&x| x == 2));
[INFO] [stdout]      |                                 ++++++++++++++++++++++++      ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]     --> src/main.rs:1915:47
[INFO] [stdout]      |
[INFO] [stdout] 1915 |     println!("Find 2 in array4: {:?}", array4.into_iter().find(|&&x| x == 2));
[INFO] [stdout]      |                                               ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this changes meaning in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]      |
[INFO] [stdout] 1915 |     println!("Find 2 in array4: {:?}", array4.iter().find(|&&x| x == 2));
[INFO] [stdout]      |                                               ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]      |
[INFO] [stdout] 1915 |     println!("Find 2 in array4: {:?}", IntoIterator::into_iter(array4).find(|&&x| x == 2));
[INFO] [stdout]      |                                        ++++++++++++++++++++++++      ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 111 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 111 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "45c1d84ad06af9691d0be07b51acc923ed654e8f1f3d973938ace0e6ee18ec4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45c1d84ad06af9691d0be07b51acc923ed654e8f1f3d973938ace0e6ee18ec4e", kill_on_drop: false }`
[INFO] [stdout] 45c1d84ad06af9691d0be07b51acc923ed654e8f1f3d973938ace0e6ee18ec4e
[INFO] checking happychameleon/rust_practice against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhappychameleon%2Frust_practice" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/happychameleon/rust_practice on toolchain f9935d29d867449445ee008640ccca1bf1ae0889
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/happychameleon/rust_practice
[INFO] finished tweaking git repo https://github.com/happychameleon/rust_practice
[INFO] tweaked toml for git repo https://github.com/happychameleon/rust_practice written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/happychameleon/rust_practice 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c47baac1ecabbe15f0700cfb4cf4fb3d6e5521a932632e939afc2fda7f07fd11
[INFO] running `Command { std: "docker" "start" "-a" "c47baac1ecabbe15f0700cfb4cf4fb3d6e5521a932632e939afc2fda7f07fd11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c47baac1ecabbe15f0700cfb4cf4fb3d6e5521a932632e939afc2fda7f07fd11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c47baac1ecabbe15f0700cfb4cf4fb3d6e5521a932632e939afc2fda7f07fd11", kill_on_drop: false }`
[INFO] [stdout] c47baac1ecabbe15f0700cfb4cf4fb3d6e5521a932632e939afc2fda7f07fd11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dtail_expr_drop_order" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e54c062e62f1976afa7c9df64720f0f398abc9397da9ebf7b6b56dbe9c4a8f1
[INFO] running `Command { std: "docker" "start" "-a" "8e54c062e62f1976afa7c9df64720f0f398abc9397da9ebf7b6b56dbe9c4a8f1", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_by_example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `Foo_two` should have an upper camel case name
[INFO] [stdout]     --> src/main.rs:1088:6
[INFO] [stdout]      |
[INFO] [stdout] 1088 | enum Foo_two {
[INFO] [stdout]      |      ^^^^^^^ help: convert the identifier to upper camel case: `FooTwo`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]     --> src/main.rs:1150:9
[INFO] [stdout]      |
[INFO] [stdout] 1150 |         'inner: loop {
[INFO] [stdout]      |         ^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Point_new` should have an upper camel case name
[INFO] [stdout]     --> src/main.rs:1551:8
[INFO] [stdout]      |
[INFO] [stdout] 1551 | struct Point_new {
[INFO] [stdout]      |        ^^^^^^^^^ help: convert the identifier to upper camel case: `PointNew`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Rectangle_new` should have an upper camel case name
[INFO] [stdout]     --> src/main.rs:1571:8
[INFO] [stdout]      |
[INFO] [stdout] 1571 | struct Rectangle_new {
[INFO] [stdout]      |        ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `RectangleNew`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/main.rs:1587:9
[INFO] [stdout]      |
[INFO] [stdout] 1587 |         ((x1 - x2).abs() + (y1 - y2).abs())
[INFO] [stdout]      |         ^                                 ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1587 -         ((x1 - x2).abs() + (y1 - y2).abs())
[INFO] [stdout] 1587 +         (x1 - x2).abs() + (y1 - y2).abs()
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Pair_new` should have an upper camel case name
[INFO] [stdout]     --> src/main.rs:1609:8
[INFO] [stdout]      |
[INFO] [stdout] 1609 | struct Pair_new(Box<i32>, Box<i32>);
[INFO] [stdout]      |        ^^^^^^^^ help: convert the identifier to upper camel case: `PairNew`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Foo_two` should have an upper camel case name
[INFO] [stdout]     --> src/main.rs:1088:6
[INFO] [stdout]      |
[INFO] [stdout] 1088 | enum Foo_two {
[INFO] [stdout]      |      ^^^^^^^ help: convert the identifier to upper camel case: `FooTwo`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]     --> src/main.rs:1150:9
[INFO] [stdout]      |
[INFO] [stdout] 1150 |         'inner: loop {
[INFO] [stdout]      |         ^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Point_new` should have an upper camel case name
[INFO] [stdout]     --> src/main.rs:1551:8
[INFO] [stdout]      |
[INFO] [stdout] 1551 | struct Point_new {
[INFO] [stdout]      |        ^^^^^^^^^ help: convert the identifier to upper camel case: `PointNew`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Rectangle_new` should have an upper camel case name
[INFO] [stdout]     --> src/main.rs:1571:8
[INFO] [stdout]      |
[INFO] [stdout] 1571 | struct Rectangle_new {
[INFO] [stdout]      |        ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `RectangleNew`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/main.rs:1587:9
[INFO] [stdout]      |
[INFO] [stdout] 1587 |         ((x1 - x2).abs() + (y1 - y2).abs())
[INFO] [stdout]      |         ^                                 ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1587 -         ((x1 - x2).abs() + (y1 - y2).abs())
[INFO] [stdout] 1587 +         (x1 - x2).abs() + (y1 - y2).abs()
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Pair_new` should have an upper camel case name
[INFO] [stdout]     --> src/main.rs:1609:8
[INFO] [stdout]      |
[INFO] [stdout] 1609 | struct Pair_new(Box<i32>, Box<i32>);
[INFO] [stdout]      |        ^^^^^^^^ help: convert the identifier to upper camel case: `PairNew`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `logical`
[INFO] [stdout]    --> src/main.rs:287:9
[INFO] [stdout]     |
[INFO] [stdout] 287 |     let logical: bool = true;
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_logical`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_float`
[INFO] [stdout]    --> src/main.rs:289:9
[INFO] [stdout]     |
[INFO] [stdout] 289 |     let a_float: f64 = 1.0; // Regualr annotation
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_float`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `an_integer`
[INFO] [stdout]    --> src/main.rs:290:9
[INFO] [stdout]     |
[INFO] [stdout] 290 |     let an_integer = 5i32; // Suffix annotation
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_an_integer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `default_float`
[INFO] [stdout]    --> src/main.rs:293:9
[INFO] [stdout]     |
[INFO] [stdout] 293 |     let default_float = 3.0; // `f64`
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_float`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `default_intager`
[INFO] [stdout]    --> src/main.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |     let default_intager = 7; // `i32`
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_intager`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `inferred_type` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:297:13
[INFO] [stdout]     |
[INFO] [stdout] 297 |     let mut inferred_type =  12; // Type i64 is inferred from another line
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_inferred_type` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `inferred_type` is never read
[INFO] [stdout]    --> src/main.rs:298:5
[INFO] [stdout]     |
[INFO] [stdout] 298 |     inferred_type = 4294967296i64;
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `mutable` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:301:13
[INFO] [stdout]     |
[INFO] [stdout] 301 |     let mut mutable = 12; // Mutable `i32`
[INFO] [stdout]     |             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_mutable` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `mutable` is never read
[INFO] [stdout]    --> src/main.rs:302:5
[INFO] [stdout]     |
[INFO] [stdout] 302 |     mutable = 21;
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mutable`
[INFO] [stdout]    --> src/main.rs:308:9
[INFO] [stdout]     |
[INFO] [stdout] 308 |     let mutable = true;
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `logical`
[INFO] [stdout]    --> src/main.rs:287:9
[INFO] [stdout]     |
[INFO] [stdout] 287 |     let logical: bool = true;
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_logical`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a_float`
[INFO] [stdout]    --> src/main.rs:289:9
[INFO] [stdout]     |
[INFO] [stdout] 289 |     let a_float: f64 = 1.0; // Regualr annotation
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_float`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `an_integer`
[INFO] [stdout]    --> src/main.rs:290:9
[INFO] [stdout]     |
[INFO] [stdout] 290 |     let an_integer = 5i32; // Suffix annotation
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_an_integer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/main.rs:617:9
[INFO] [stdout]     |
[INFO] [stdout] 617 |     let x = Operations::Add;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `default_float`
[INFO] [stdout]    --> src/main.rs:293:9
[INFO] [stdout]     |
[INFO] [stdout] 293 |     let default_float = 3.0; // `f64`
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_float`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `default_intager`
[INFO] [stdout]    --> src/main.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |     let default_intager = 7; // `i32`
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_intager`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `inferred_type` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:297:13
[INFO] [stdout]     |
[INFO] [stdout] 297 |     let mut inferred_type =  12; // Type i64 is inferred from another line
[INFO] [stdout]     |             ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_inferred_type` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `inferred_type` is never read
[INFO] [stdout]    --> src/main.rs:298:5
[INFO] [stdout]     |
[INFO] [stdout] 298 |     inferred_type = 4294967296i64;
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `mutable` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:301:13
[INFO] [stdout]     |
[INFO] [stdout] 301 |     let mut mutable = 12; // Mutable `i32`
[INFO] [stdout]     |             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_mutable` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `mutable` is never read
[INFO] [stdout]    --> src/main.rs:302:5
[INFO] [stdout]     |
[INFO] [stdout] 302 |     mutable = 21;
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mutable`
[INFO] [stdout]    --> src/main.rs:308:9
[INFO] [stdout]     |
[INFO] [stdout] 308 |     let mutable = true;
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/main.rs:617:9
[INFO] [stdout]     |
[INFO] [stdout] 617 |     let x = Operations::Add;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]     --> src/main.rs:1475:25
[INFO] [stdout]      |
[INFO] [stdout] 1475 |     if let Foo_two::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/main.rs:1475:25
[INFO] [stdout]      |
[INFO] [stdout] 1475 |     if let Foo_two::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 `formatted` is never used
[INFO] [stdout]   --> src/main.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn formatted(){
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Structure` is never constructed
[INFO] [stdout]   --> src/main.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | struct Structure(i32);
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Deep` is never constructed
[INFO] [stdout]   --> src/main.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | struct Deep(Structure);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]   --> src/main.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | struct Person <'a> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `debug` is never used
[INFO] [stdout]   --> src/main.rs:97:4
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn debug(){
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StructureTwo` is never constructed
[INFO] [stdout]    --> src/main.rs:133:8
[INFO] [stdout]     |
[INFO] [stdout] 133 | struct StructureTwo(i32);
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MinMax` is never constructed
[INFO] [stdout]    --> src/main.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 143 | struct MinMax(i64, i64);
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point2D` is never constructed
[INFO] [stdout]    --> src/main.rs:152:8
[INFO] [stdout]     |
[INFO] [stdout] 152 | struct Point2D {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Complex` is never constructed
[INFO] [stdout]    --> src/main.rs:164:8
[INFO] [stdout]     |
[INFO] [stdout] 164 | struct Complex {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `List` is never constructed
[INFO] [stdout]    --> src/main.rs:175:8
[INFO] [stdout]     |
[INFO] [stdout] 175 | struct List(Vec<i32>);
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `display` is never used
[INFO] [stdout]    --> src/main.rs:199:4
[INFO] [stdout]     |
[INFO] [stdout] 199 | fn display(){
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `City` is never constructed
[INFO] [stdout]    --> src/main.rs:234:8
[INFO] [stdout]     |
[INFO] [stdout] 234 | struct City {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]    --> src/main.rs:254:8
[INFO] [stdout]     |
[INFO] [stdout] 254 | struct Color {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `formatting` is never used
[INFO] [stdout]    --> src/main.rs:266:4
[INFO] [stdout]     |
[INFO] [stdout] 266 | fn formatting() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `primitives` is never used
[INFO] [stdout]    --> src/main.rs:285:4
[INFO] [stdout]     |
[INFO] [stdout] 285 | fn primitives() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lit_op` is never used
[INFO] [stdout]    --> src/main.rs:313:4
[INFO] [stdout]     |
[INFO] [stdout] 313 | fn lit_op() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reverse` is never used
[INFO] [stdout]    --> src/main.rs:339:4
[INFO] [stdout]     |
[INFO] [stdout] 339 | fn reverse(pair: (i32, bool)) -> (bool, i32) {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `transpose` is never used
[INFO] [stdout]    --> src/main.rs:347:4
[INFO] [stdout]     |
[INFO] [stdout] 347 | fn transpose(matrix: Matrix) -> Matrix {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Matrix` is never constructed
[INFO] [stdout]    --> src/main.rs:358:8
[INFO] [stdout]     |
[INFO] [stdout] 358 | struct Matrix(f32, f32, f32, f32);
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tuples` is never used
[INFO] [stdout]    --> src/main.rs:367:4
[INFO] [stdout]     |
[INFO] [stdout] 367 | fn tuples() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `analyze_slice` is never used
[INFO] [stdout]    --> src/main.rs:409:4
[INFO] [stdout]     |
[INFO] [stdout] 409 | fn analyze_slice(slice: &[i32]) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `arsli` is never used
[INFO] [stdout]    --> src/main.rs:414:4
[INFO] [stdout]     |
[INFO] [stdout] 414 | fn arsli() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PersonOne` is never constructed
[INFO] [stdout]    --> src/main.rs:450:8
[INFO] [stdout]     |
[INFO] [stdout] 450 | struct PersonOne<'a> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NilOne` is never constructed
[INFO] [stdout]    --> src/main.rs:457:8
[INFO] [stdout]     |
[INFO] [stdout] 457 | struct NilOne;
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]    --> src/main.rs:460:8
[INFO] [stdout]     |
[INFO] [stdout] 460 | struct Pair(i32, f32);
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]    --> src/main.rs:465:5
[INFO] [stdout]     |
[INFO] [stdout] 464 | struct Point {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] 465 |     x: f32,
[INFO] [stdout]     |     ^
[INFO] [stdout] 466 |     y: f32,
[INFO] [stdout]     |     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Point` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rect_area` is never used
[INFO] [stdout]    --> src/main.rs:479:4
[INFO] [stdout]     |
[INFO] [stdout] 479 | fn rect_area (rect: &Rectangle) -> f32 {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `square` is never used
[INFO] [stdout]    --> src/main.rs:487:4
[INFO] [stdout]     |
[INFO] [stdout] 487 | fn square(point: &Point, l: f32) -> Rectangle {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `structures` is never used
[INFO] [stdout]    --> src/main.rs:495:4
[INFO] [stdout]     |
[INFO] [stdout] 495 | fn structures() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `WebEvent` is never used
[INFO] [stdout]    --> src/main.rs:557:6
[INFO] [stdout]     |
[INFO] [stdout] 557 | enum WebEvent {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `VeryVerboseEnumOfThingsToDoWithNumbers` is never used
[INFO] [stdout]    --> src/main.rs:568:6
[INFO] [stdout]     |
[INFO] [stdout] 568 | enum VeryVerboseEnumOfThingsToDoWithNumbers {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `run` is never used
[INFO] [stdout]    --> src/main.rs:574:8
[INFO] [stdout]     |
[INFO] [stdout] 573 | impl VeryVerboseEnumOfThingsToDoWithNumbers {
[INFO] [stdout]     | ------------------------------------------- method in this implementation
[INFO] [stdout] 574 |     fn run(&self, x: i32, y: i32) -> i32 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Operations` is never used
[INFO] [stdout]    --> src/main.rs:583:6
[INFO] [stdout]     |
[INFO] [stdout] 583 | type Operations = VeryVerboseEnumOfThingsToDoWithNumbers;
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `inspect` is never used
[INFO] [stdout]    --> src/main.rs:587:4
[INFO] [stdout]     |
[INFO] [stdout] 587 | fn inspect(event: WebEvent) {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `enums` is never used
[INFO] [stdout]    --> src/main.rs:601:4
[INFO] [stdout]     |
[INFO] [stdout] 601 | fn enums() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Status` is never used
[INFO] [stdout]    --> src/main.rs:623:6
[INFO] [stdout]     |
[INFO] [stdout] 623 | enum Status {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Work` is never used
[INFO] [stdout]    --> src/main.rs:628:6
[INFO] [stdout]     |
[INFO] [stdout] 628 | enum Work {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `enumUse` is never used
[INFO] [stdout]    --> src/main.rs:633:4
[INFO] [stdout]     |
[INFO] [stdout] 633 | fn enumUse() {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Number` is never used
[INFO] [stdout]    --> src/main.rs:661:6
[INFO] [stdout]     |
[INFO] [stdout] 661 | enum Number {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ColorTwo` is never used
[INFO] [stdout]    --> src/main.rs:668:6
[INFO] [stdout]     |
[INFO] [stdout] 668 | enum ColorTwo {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clike` is never used
[INFO] [stdout]    --> src/main.rs:674:4
[INFO] [stdout]     |
[INFO] [stdout] 674 | fn clike() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ListNew` is never used
[INFO] [stdout]    --> src/main.rs:687:6
[INFO] [stdout]     |
[INFO] [stdout] 687 | enum ListNew {
[INFO] [stdout]     |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `prepend`, `len`, and `stringify` are never used
[INFO] [stdout]    --> src/main.rs:697:8
[INFO] [stdout]     |
[INFO] [stdout] 695 | impl ListNew {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] 696 |     // Create an empty list
[INFO] [stdout] 697 |     fn new() -> ListNew {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 703 |     fn prepend(self, elem: u32) -> ListNew {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 709 |     fn len(&self) -> u32 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 724 |     fn stringify(&self) -> String {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `enum_testcase` is never used
[INFO] [stdout]    --> src/main.rs:738:4
[INFO] [stdout]     |
[INFO] [stdout] 738 | fn enum_testcase() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `LANGUAGE` is never used
[INFO] [stdout]    --> src/main.rs:756:8
[INFO] [stdout]     |
[INFO] [stdout] 756 | static LANGUAGE: &str = "Rust";
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `THRESHOLD` is never used
[INFO] [stdout]    --> src/main.rs:757:7
[INFO] [stdout]     |
[INFO] [stdout] 757 | const THRESHOLD: i32 = 10;
[INFO] [stdout]     |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_big` is never used
[INFO] [stdout]    --> src/main.rs:759:4
[INFO] [stdout]     |
[INFO] [stdout] 759 | fn is_big(n: i32) -> bool {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `constants` is never used
[INFO] [stdout]    --> src/main.rs:764:4
[INFO] [stdout]     |
[INFO] [stdout] 764 | fn constants() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `varbind` is never used
[INFO] [stdout]    --> src/main.rs:778:4
[INFO] [stdout]     |
[INFO] [stdout] 778 | fn varbind() {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mutability` is never used
[INFO] [stdout]    --> src/main.rs:799:4
[INFO] [stdout]     |
[INFO] [stdout] 799 | fn mutability() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `scope_shadow` is never used
[INFO] [stdout]    --> src/main.rs:817:4
[INFO] [stdout]     |
[INFO] [stdout] 817 | fn scope_shadow() {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `declare_first` is never used
[INFO] [stdout]    --> src/main.rs:848:4
[INFO] [stdout]     |
[INFO] [stdout] 848 | fn declare_first() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `casting` is never used
[INFO] [stdout]    --> src/main.rs:877:4
[INFO] [stdout]     |
[INFO] [stdout] 877 | fn casting() {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `literals` is never used
[INFO] [stdout]    --> src/main.rs:924:4
[INFO] [stdout]     |
[INFO] [stdout] 924 | fn literals() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `inference` is never used
[INFO] [stdout]    --> src/main.rs:944:4
[INFO] [stdout]     |
[INFO] [stdout] 944 | fn inference() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `NanoSecond` is never used
[INFO] [stdout]    --> src/main.rs:962:6
[INFO] [stdout]     |
[INFO] [stdout] 962 | type NanoSecond = u64;
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Inch` is never used
[INFO] [stdout]    --> src/main.rs:963:6
[INFO] [stdout]     |
[INFO] [stdout] 963 | type Inch = u64;
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `aliasing` is never used
[INFO] [stdout]    --> src/main.rs:967:4
[INFO] [stdout]     |
[INFO] [stdout] 967 | fn aliasing() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]    --> src/main.rs:985:6
[INFO] [stdout]     |
[INFO] [stdout] 984 | struct NumberTwo {
[INFO] [stdout]     |        --------- field in this struct
[INFO] [stdout] 985 |      value: i32,
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `NumberTwo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `from_and_into` is never used
[INFO] [stdout]    --> src/main.rs:994:4
[INFO] [stdout]     |
[INFO] [stdout] 994 | fn from_and_into() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tryfrom_tryinto` is never used
[INFO] [stdout]     --> src/main.rs:1024:4
[INFO] [stdout]      |
[INFO] [stdout] 1024 | fn tryfrom_tryinto() {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Circle` is never constructed
[INFO] [stdout]     --> src/main.rs:1042:8
[INFO] [stdout]      |
[INFO] [stdout] 1042 | struct Circle {
[INFO] [stdout]      |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_from_strings` is never used
[INFO] [stdout]     --> src/main.rs:1052:4
[INFO] [stdout]      |
[INFO] [stdout] 1052 | fn to_from_strings() {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Color3` is never used
[INFO] [stdout]     --> src/main.rs:1066:6
[INFO] [stdout]      |
[INFO] [stdout] 1066 | enum Color3 {
[INFO] [stdout]      |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `age` is never used
[INFO] [stdout]     --> src/main.rs:1080:4
[INFO] [stdout]      |
[INFO] [stdout] 1080 | fn age() -> u32 {
[INFO] [stdout]      |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_number` is never used
[INFO] [stdout]     --> src/main.rs:1084:4
[INFO] [stdout]      |
[INFO] [stdout] 1084 | fn some_number() -> Option<u32> {
[INFO] [stdout]      |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Foo_two` is never used
[INFO] [stdout]     --> src/main.rs:1088:6
[INFO] [stdout]      |
[INFO] [stdout] 1088 | enum Foo_two {
[INFO] [stdout]      |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `flow_control` is never used
[INFO] [stdout]     --> src/main.rs:1094:4
[INFO] [stdout]      |
[INFO] [stdout] 1094 | fn flow_control() {
[INFO] [stdout]      |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `functioned_fizzbuzz` is never used
[INFO] [stdout]     --> src/main.rs:1510:4
[INFO] [stdout]      |
[INFO] [stdout] 1510 | fn functioned_fizzbuzz() {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_divisible_by` is never used
[INFO] [stdout]     --> src/main.rs:1516:4
[INFO] [stdout]      |
[INFO] [stdout] 1516 | fn is_divisible_by(lhs: u32, rhs: u32) -> bool {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fizzbuzz` is never used
[INFO] [stdout]     --> src/main.rs:1527:4
[INFO] [stdout]      |
[INFO] [stdout] 1527 | fn fizzbuzz(n: u32) -> () {
[INFO] [stdout]      |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fizzbuzz_to` is never used
[INFO] [stdout]     --> src/main.rs:1541:4
[INFO] [stdout]      |
[INFO] [stdout] 1541 | fn fizzbuzz_to(n: u32) {
[INFO] [stdout]      |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point_new` is never constructed
[INFO] [stdout]     --> src/main.rs:1551:8
[INFO] [stdout]      |
[INFO] [stdout] 1551 | struct Point_new {
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `origin` and `new` are never used
[INFO] [stdout]     --> src/main.rs:1561:8
[INFO] [stdout]      |
[INFO] [stdout] 1557 | impl Point_new {
[INFO] [stdout]      | -------------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1561 |     fn origin() -> Point_new {
[INFO] [stdout]      |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1566 |     fn new( x: f64, y: f64 ) -> Point_new {
[INFO] [stdout]      |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle_new` is never constructed
[INFO] [stdout]     --> src/main.rs:1571:8
[INFO] [stdout]      |
[INFO] [stdout] 1571 | struct Rectangle_new {
[INFO] [stdout]      |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `area`, `perimeter`, and `translate` are never used
[INFO] [stdout]     --> src/main.rs:1580:8
[INFO] [stdout]      |
[INFO] [stdout] 1576 | impl Rectangle_new {
[INFO] [stdout]      | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1580 |     fn area(&self) -> f64 {
[INFO] [stdout]      |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1590 |     fn perimeter(&self) -> f64 {
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1599 |     fn translate(&mut self, x: f64, y: f64) {
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair_new` is never constructed
[INFO] [stdout]     --> src/main.rs:1609:8
[INFO] [stdout]      |
[INFO] [stdout] 1609 | struct Pair_new(Box<i32>, Box<i32>);
[INFO] [stdout]      |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `destroy` is never used
[INFO] [stdout]     --> src/main.rs:1614:8
[INFO] [stdout]      |
[INFO] [stdout] 1611 | impl Pair_new {
[INFO] [stdout]      | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1614 |     fn destroy(self) {
[INFO] [stdout]      |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `methods` is never used
[INFO] [stdout]     --> src/main.rs:1624:4
[INFO] [stdout]      |
[INFO] [stdout] 1624 | fn methods() {
[INFO] [stdout]      |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply` is never used
[INFO] [stdout]     --> src/main.rs:1653:4
[INFO] [stdout]      |
[INFO] [stdout] 1653 | fn apply<F>(f: F) where
[INFO] [stdout]      |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply_to_3` is never used
[INFO] [stdout]     --> src/main.rs:1661:4
[INFO] [stdout]      |
[INFO] [stdout] 1661 | fn apply_to_3<F>(f: F) -> i32 where
[INFO] [stdout]      |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply_fn` is never used
[INFO] [stdout]     --> src/main.rs:1670:4
[INFO] [stdout]      |
[INFO] [stdout] 1670 | fn apply_fn<F>(f: F) where
[INFO] [stdout]      |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `call_me` is never used
[INFO] [stdout]     --> src/main.rs:1677:4
[INFO] [stdout]      |
[INFO] [stdout] 1677 | fn call_me<F: Fn()>(f: F) {
[INFO] [stdout]      |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_function` is never used
[INFO] [stdout]     --> src/main.rs:1682:4
[INFO] [stdout]      |
[INFO] [stdout] 1682 | fn example_function() {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_fn` is never used
[INFO] [stdout]     --> src/main.rs:1686:4
[INFO] [stdout]      |
[INFO] [stdout] 1686 | fn create_fn() -> impl Fn() {
[INFO] [stdout]      |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_fnmut` is never used
[INFO] [stdout]     --> src/main.rs:1692:4
[INFO] [stdout]      |
[INFO] [stdout] 1692 | fn create_fnmut() -> impl FnMut() {
[INFO] [stdout]      |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_fnonce` is never used
[INFO] [stdout]     --> src/main.rs:1698:4
[INFO] [stdout]      |
[INFO] [stdout] 1698 | fn create_fnonce() -> impl FnOnce() {
[INFO] [stdout]      |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `closures` is never used
[INFO] [stdout]     --> src/main.rs:1704:4
[INFO] [stdout]      |
[INFO] [stdout] 1704 | fn closures() {
[INFO] [stdout]      |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_odd` is never used
[INFO] [stdout]     --> src/main.rs:1929:4
[INFO] [stdout]      |
[INFO] [stdout] 1929 | fn is_odd(n: u32) -> bool {
[INFO] [stdout]      |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hof` is never used
[INFO] [stdout]     --> src/main.rs:1933:4
[INFO] [stdout]      |
[INFO] [stdout] 1933 | fn hof() {
[INFO] [stdout]      |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `enumUse` should have a snake case name
[INFO] [stdout]    --> src/main.rs:633:4
[INFO] [stdout]     |
[INFO] [stdout] 633 | fn enumUse() {
[INFO] [stdout]     |    ^^^^^^^ help: convert the identifier to snake case: `enum_use`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/main.rs:705:20
[INFO] [stdout]     |
[INFO] [stdout] 703 |     fn prepend(self, elem: u32) -> ListNew {
[INFO] [stdout]     |                ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 704 |         // `Cons` also has type List
[INFO] [stdout] 705 |         Cons(elem, Box::new(self))
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]     = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]     --> src/main.rs:1890:40
[INFO] [stdout]      |
[INFO] [stdout] 1890 |     println!("2 in array2: {}", array2.into_iter().any(|&x| x == 2));
[INFO] [stdout]      |                                        ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this changes meaning in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]      = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]      |
[INFO] [stdout] 1890 |     println!("2 in array2: {}", array2.iter().any(|&x| x == 2));
[INFO] [stdout]      |                                        ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]      |
[INFO] [stdout] 1890 |     println!("2 in array2: {}", IntoIterator::into_iter(array2).any(|&x| x == 2));
[INFO] [stdout]      |                                 ++++++++++++++++++++++++      ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]     --> src/main.rs:1915:47
[INFO] [stdout]      |
[INFO] [stdout] 1915 |     println!("Find 2 in array4: {:?}", array4.into_iter().find(|&&x| x == 2));
[INFO] [stdout]      |                                               ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this changes meaning in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]      |
[INFO] [stdout] 1915 |     println!("Find 2 in array4: {:?}", array4.iter().find(|&&x| x == 2));
[INFO] [stdout]      |                                               ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]      |
[INFO] [stdout] 1915 |     println!("Find 2 in array4: {:?}", IntoIterator::into_iter(array4).find(|&&x| x == 2));
[INFO] [stdout]      |                                        ++++++++++++++++++++++++      ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `formatted` is never used
[INFO] [stdout]   --> src/main.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn formatted(){
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Structure` is never constructed
[INFO] [stdout]   --> src/main.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | struct Structure(i32);
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Deep` is never constructed
[INFO] [stdout]   --> src/main.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | struct Deep(Structure);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]   --> src/main.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | struct Person <'a> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `debug` is never used
[INFO] [stdout]   --> src/main.rs:97:4
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn debug(){
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StructureTwo` is never constructed
[INFO] [stdout]    --> src/main.rs:133:8
[INFO] [stdout]     |
[INFO] [stdout] 133 | struct StructureTwo(i32);
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MinMax` is never constructed
[INFO] [stdout]    --> src/main.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 143 | struct MinMax(i64, i64);
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point2D` is never constructed
[INFO] [stdout]    --> src/main.rs:152:8
[INFO] [stdout]     |
[INFO] [stdout] 152 | struct Point2D {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Complex` is never constructed
[INFO] [stdout]    --> src/main.rs:164:8
[INFO] [stdout]     |
[INFO] [stdout] 164 | struct Complex {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `List` is never constructed
[INFO] [stdout]    --> src/main.rs:175:8
[INFO] [stdout]     |
[INFO] [stdout] 175 | struct List(Vec<i32>);
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `display` is never used
[INFO] [stdout]    --> src/main.rs:199:4
[INFO] [stdout]     |
[INFO] [stdout] 199 | fn display(){
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `City` is never constructed
[INFO] [stdout]    --> src/main.rs:234:8
[INFO] [stdout]     |
[INFO] [stdout] 234 | struct City {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]    --> src/main.rs:254:8
[INFO] [stdout]     |
[INFO] [stdout] 254 | struct Color {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `formatting` is never used
[INFO] [stdout]    --> src/main.rs:266:4
[INFO] [stdout]     |
[INFO] [stdout] 266 | fn formatting() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `primitives` is never used
[INFO] [stdout]    --> src/main.rs:285:4
[INFO] [stdout]     |
[INFO] [stdout] 285 | fn primitives() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lit_op` is never used
[INFO] [stdout]    --> src/main.rs:313:4
[INFO] [stdout]     |
[INFO] [stdout] 313 | fn lit_op() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reverse` is never used
[INFO] [stdout]    --> src/main.rs:339:4
[INFO] [stdout]     |
[INFO] [stdout] 339 | fn reverse(pair: (i32, bool)) -> (bool, i32) {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `transpose` is never used
[INFO] [stdout]    --> src/main.rs:347:4
[INFO] [stdout]     |
[INFO] [stdout] 347 | fn transpose(matrix: Matrix) -> Matrix {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Matrix` is never constructed
[INFO] [stdout]    --> src/main.rs:358:8
[INFO] [stdout]     |
[INFO] [stdout] 358 | struct Matrix(f32, f32, f32, f32);
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tuples` is never used
[INFO] [stdout]    --> src/main.rs:367:4
[INFO] [stdout]     |
[INFO] [stdout] 367 | fn tuples() {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `analyze_slice` is never used
[INFO] [stdout]    --> src/main.rs:409:4
[INFO] [stdout]     |
[INFO] [stdout] 409 | fn analyze_slice(slice: &[i32]) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `arsli` is never used
[INFO] [stdout]    --> src/main.rs:414:4
[INFO] [stdout]     |
[INFO] [stdout] 414 | fn arsli() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PersonOne` is never constructed
[INFO] [stdout]    --> src/main.rs:450:8
[INFO] [stdout]     |
[INFO] [stdout] 450 | struct PersonOne<'a> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NilOne` is never constructed
[INFO] [stdout]    --> src/main.rs:457:8
[INFO] [stdout]     |
[INFO] [stdout] 457 | struct NilOne;
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]    --> src/main.rs:460:8
[INFO] [stdout]     |
[INFO] [stdout] 460 | struct Pair(i32, f32);
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]    --> src/main.rs:465:5
[INFO] [stdout]     |
[INFO] [stdout] 464 | struct Point {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] 465 |     x: f32,
[INFO] [stdout]     |     ^
[INFO] [stdout] 466 |     y: f32,
[INFO] [stdout]     |     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Point` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rect_area` is never used
[INFO] [stdout]    --> src/main.rs:479:4
[INFO] [stdout]     |
[INFO] [stdout] 479 | fn rect_area (rect: &Rectangle) -> f32 {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `square` is never used
[INFO] [stdout]    --> src/main.rs:487:4
[INFO] [stdout]     |
[INFO] [stdout] 487 | fn square(point: &Point, l: f32) -> Rectangle {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `structures` is never used
[INFO] [stdout]    --> src/main.rs:495:4
[INFO] [stdout]     |
[INFO] [stdout] 495 | fn structures() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `WebEvent` is never used
[INFO] [stdout]    --> src/main.rs:557:6
[INFO] [stdout]     |
[INFO] [stdout] 557 | enum WebEvent {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `VeryVerboseEnumOfThingsToDoWithNumbers` is never used
[INFO] [stdout]    --> src/main.rs:568:6
[INFO] [stdout]     |
[INFO] [stdout] 568 | enum VeryVerboseEnumOfThingsToDoWithNumbers {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `run` is never used
[INFO] [stdout]    --> src/main.rs:574:8
[INFO] [stdout]     |
[INFO] [stdout] 573 | impl VeryVerboseEnumOfThingsToDoWithNumbers {
[INFO] [stdout]     | ------------------------------------------- method in this implementation
[INFO] [stdout] 574 |     fn run(&self, x: i32, y: i32) -> i32 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Operations` is never used
[INFO] [stdout]    --> src/main.rs:583:6
[INFO] [stdout]     |
[INFO] [stdout] 583 | type Operations = VeryVerboseEnumOfThingsToDoWithNumbers;
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `inspect` is never used
[INFO] [stdout]    --> src/main.rs:587:4
[INFO] [stdout]     |
[INFO] [stdout] 587 | fn inspect(event: WebEvent) {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `enums` is never used
[INFO] [stdout]    --> src/main.rs:601:4
[INFO] [stdout]     |
[INFO] [stdout] 601 | fn enums() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Status` is never used
[INFO] [stdout]    --> src/main.rs:623:6
[INFO] [stdout]     |
[INFO] [stdout] 623 | enum Status {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Work` is never used
[INFO] [stdout]    --> src/main.rs:628:6
[INFO] [stdout]     |
[INFO] [stdout] 628 | enum Work {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `enumUse` is never used
[INFO] [stdout]    --> src/main.rs:633:4
[INFO] [stdout]     |
[INFO] [stdout] 633 | fn enumUse() {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Number` is never used
[INFO] [stdout]    --> src/main.rs:661:6
[INFO] [stdout]     |
[INFO] [stdout] 661 | enum Number {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ColorTwo` is never used
[INFO] [stdout]    --> src/main.rs:668:6
[INFO] [stdout]     |
[INFO] [stdout] 668 | enum ColorTwo {
[INFO] [stdout]     |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 111 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clike` is never used
[INFO] [stdout]    --> src/main.rs:674:4
[INFO] [stdout]     |
[INFO] [stdout] 674 | fn clike() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ListNew` is never used
[INFO] [stdout]    --> src/main.rs:687:6
[INFO] [stdout]     |
[INFO] [stdout] 687 | enum ListNew {
[INFO] [stdout]     |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `prepend`, `len`, and `stringify` are never used
[INFO] [stdout]    --> src/main.rs:697:8
[INFO] [stdout]     |
[INFO] [stdout] 695 | impl ListNew {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] 696 |     // Create an empty list
[INFO] [stdout] 697 |     fn new() -> ListNew {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 703 |     fn prepend(self, elem: u32) -> ListNew {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 709 |     fn len(&self) -> u32 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 724 |     fn stringify(&self) -> String {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `enum_testcase` is never used
[INFO] [stdout]    --> src/main.rs:738:4
[INFO] [stdout]     |
[INFO] [stdout] 738 | fn enum_testcase() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `LANGUAGE` is never used
[INFO] [stdout]    --> src/main.rs:756:8
[INFO] [stdout]     |
[INFO] [stdout] 756 | static LANGUAGE: &str = "Rust";
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `THRESHOLD` is never used
[INFO] [stdout]    --> src/main.rs:757:7
[INFO] [stdout]     |
[INFO] [stdout] 757 | const THRESHOLD: i32 = 10;
[INFO] [stdout]     |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_big` is never used
[INFO] [stdout]    --> src/main.rs:759:4
[INFO] [stdout]     |
[INFO] [stdout] 759 | fn is_big(n: i32) -> bool {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `constants` is never used
[INFO] [stdout]    --> src/main.rs:764:4
[INFO] [stdout]     |
[INFO] [stdout] 764 | fn constants() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `varbind` is never used
[INFO] [stdout]    --> src/main.rs:778:4
[INFO] [stdout]     |
[INFO] [stdout] 778 | fn varbind() {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mutability` is never used
[INFO] [stdout]    --> src/main.rs:799:4
[INFO] [stdout]     |
[INFO] [stdout] 799 | fn mutability() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `scope_shadow` is never used
[INFO] [stdout]    --> src/main.rs:817:4
[INFO] [stdout]     |
[INFO] [stdout] 817 | fn scope_shadow() {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `declare_first` is never used
[INFO] [stdout]    --> src/main.rs:848:4
[INFO] [stdout]     |
[INFO] [stdout] 848 | fn declare_first() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `casting` is never used
[INFO] [stdout]    --> src/main.rs:877:4
[INFO] [stdout]     |
[INFO] [stdout] 877 | fn casting() {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `literals` is never used
[INFO] [stdout]    --> src/main.rs:924:4
[INFO] [stdout]     |
[INFO] [stdout] 924 | fn literals() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `inference` is never used
[INFO] [stdout]    --> src/main.rs:944:4
[INFO] [stdout]     |
[INFO] [stdout] 944 | fn inference() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `NanoSecond` is never used
[INFO] [stdout]    --> src/main.rs:962:6
[INFO] [stdout]     |
[INFO] [stdout] 962 | type NanoSecond = u64;
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Inch` is never used
[INFO] [stdout]    --> src/main.rs:963:6
[INFO] [stdout]     |
[INFO] [stdout] 963 | type Inch = u64;
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `aliasing` is never used
[INFO] [stdout]    --> src/main.rs:967:4
[INFO] [stdout]     |
[INFO] [stdout] 967 | fn aliasing() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]    --> src/main.rs:985:6
[INFO] [stdout]     |
[INFO] [stdout] 984 | struct NumberTwo {
[INFO] [stdout]     |        --------- field in this struct
[INFO] [stdout] 985 |      value: i32,
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `NumberTwo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `from_and_into` is never used
[INFO] [stdout]    --> src/main.rs:994:4
[INFO] [stdout]     |
[INFO] [stdout] 994 | fn from_and_into() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tryfrom_tryinto` is never used
[INFO] [stdout]     --> src/main.rs:1024:4
[INFO] [stdout]      |
[INFO] [stdout] 1024 | fn tryfrom_tryinto() {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Circle` is never constructed
[INFO] [stdout]     --> src/main.rs:1042:8
[INFO] [stdout]      |
[INFO] [stdout] 1042 | struct Circle {
[INFO] [stdout]      |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_from_strings` is never used
[INFO] [stdout]     --> src/main.rs:1052:4
[INFO] [stdout]      |
[INFO] [stdout] 1052 | fn to_from_strings() {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Color3` is never used
[INFO] [stdout]     --> src/main.rs:1066:6
[INFO] [stdout]      |
[INFO] [stdout] 1066 | enum Color3 {
[INFO] [stdout]      |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `age` is never used
[INFO] [stdout]     --> src/main.rs:1080:4
[INFO] [stdout]      |
[INFO] [stdout] 1080 | fn age() -> u32 {
[INFO] [stdout]      |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_number` is never used
[INFO] [stdout]     --> src/main.rs:1084:4
[INFO] [stdout]      |
[INFO] [stdout] 1084 | fn some_number() -> Option<u32> {
[INFO] [stdout]      |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Foo_two` is never used
[INFO] [stdout]     --> src/main.rs:1088:6
[INFO] [stdout]      |
[INFO] [stdout] 1088 | enum Foo_two {
[INFO] [stdout]      |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `flow_control` is never used
[INFO] [stdout]     --> src/main.rs:1094:4
[INFO] [stdout]      |
[INFO] [stdout] 1094 | fn flow_control() {
[INFO] [stdout]      |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `functioned_fizzbuzz` is never used
[INFO] [stdout]     --> src/main.rs:1510:4
[INFO] [stdout]      |
[INFO] [stdout] 1510 | fn functioned_fizzbuzz() {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_divisible_by` is never used
[INFO] [stdout]     --> src/main.rs:1516:4
[INFO] [stdout]      |
[INFO] [stdout] 1516 | fn is_divisible_by(lhs: u32, rhs: u32) -> bool {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fizzbuzz` is never used
[INFO] [stdout]     --> src/main.rs:1527:4
[INFO] [stdout]      |
[INFO] [stdout] 1527 | fn fizzbuzz(n: u32) -> () {
[INFO] [stdout]      |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fizzbuzz_to` is never used
[INFO] [stdout]     --> src/main.rs:1541:4
[INFO] [stdout]      |
[INFO] [stdout] 1541 | fn fizzbuzz_to(n: u32) {
[INFO] [stdout]      |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point_new` is never constructed
[INFO] [stdout]     --> src/main.rs:1551:8
[INFO] [stdout]      |
[INFO] [stdout] 1551 | struct Point_new {
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `origin` and `new` are never used
[INFO] [stdout]     --> src/main.rs:1561:8
[INFO] [stdout]      |
[INFO] [stdout] 1557 | impl Point_new {
[INFO] [stdout]      | -------------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1561 |     fn origin() -> Point_new {
[INFO] [stdout]      |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1566 |     fn new( x: f64, y: f64 ) -> Point_new {
[INFO] [stdout]      |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle_new` is never constructed
[INFO] [stdout]     --> src/main.rs:1571:8
[INFO] [stdout]      |
[INFO] [stdout] 1571 | struct Rectangle_new {
[INFO] [stdout]      |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `area`, `perimeter`, and `translate` are never used
[INFO] [stdout]     --> src/main.rs:1580:8
[INFO] [stdout]      |
[INFO] [stdout] 1576 | impl Rectangle_new {
[INFO] [stdout]      | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1580 |     fn area(&self) -> f64 {
[INFO] [stdout]      |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1590 |     fn perimeter(&self) -> f64 {
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1599 |     fn translate(&mut self, x: f64, y: f64) {
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair_new` is never constructed
[INFO] [stdout]     --> src/main.rs:1609:8
[INFO] [stdout]      |
[INFO] [stdout] 1609 | struct Pair_new(Box<i32>, Box<i32>);
[INFO] [stdout]      |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `destroy` is never used
[INFO] [stdout]     --> src/main.rs:1614:8
[INFO] [stdout]      |
[INFO] [stdout] 1611 | impl Pair_new {
[INFO] [stdout]      | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1614 |     fn destroy(self) {
[INFO] [stdout]      |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `methods` is never used
[INFO] [stdout]     --> src/main.rs:1624:4
[INFO] [stdout]      |
[INFO] [stdout] 1624 | fn methods() {
[INFO] [stdout]      |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply` is never used
[INFO] [stdout]     --> src/main.rs:1653:4
[INFO] [stdout]      |
[INFO] [stdout] 1653 | fn apply<F>(f: F) where
[INFO] [stdout]      |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply_to_3` is never used
[INFO] [stdout]     --> src/main.rs:1661:4
[INFO] [stdout]      |
[INFO] [stdout] 1661 | fn apply_to_3<F>(f: F) -> i32 where
[INFO] [stdout]      |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply_fn` is never used
[INFO] [stdout]     --> src/main.rs:1670:4
[INFO] [stdout]      |
[INFO] [stdout] 1670 | fn apply_fn<F>(f: F) where
[INFO] [stdout]      |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `call_me` is never used
[INFO] [stdout]     --> src/main.rs:1677:4
[INFO] [stdout]      |
[INFO] [stdout] 1677 | fn call_me<F: Fn()>(f: F) {
[INFO] [stdout]      |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_function` is never used
[INFO] [stdout]     --> src/main.rs:1682:4
[INFO] [stdout]      |
[INFO] [stdout] 1682 | fn example_function() {
[INFO] [stdout]      |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_fn` is never used
[INFO] [stdout]     --> src/main.rs:1686:4
[INFO] [stdout]      |
[INFO] [stdout] 1686 | fn create_fn() -> impl Fn() {
[INFO] [stdout]      |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_fnmut` is never used
[INFO] [stdout]     --> src/main.rs:1692:4
[INFO] [stdout]      |
[INFO] [stdout] 1692 | fn create_fnmut() -> impl FnMut() {
[INFO] [stdout]      |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_fnonce` is never used
[INFO] [stdout]     --> src/main.rs:1698:4
[INFO] [stdout]      |
[INFO] [stdout] 1698 | fn create_fnonce() -> impl FnOnce() {
[INFO] [stdout]      |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `closures` is never used
[INFO] [stdout]     --> src/main.rs:1704:4
[INFO] [stdout]      |
[INFO] [stdout] 1704 | fn closures() {
[INFO] [stdout]      |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_odd` is never used
[INFO] [stdout]     --> src/main.rs:1929:4
[INFO] [stdout]      |
[INFO] [stdout] 1929 | fn is_odd(n: u32) -> bool {
[INFO] [stdout]      |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hof` is never used
[INFO] [stdout]     --> src/main.rs:1933:4
[INFO] [stdout]      |
[INFO] [stdout] 1933 | fn hof() {
[INFO] [stdout]      |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `enumUse` should have a snake case name
[INFO] [stdout]    --> src/main.rs:633:4
[INFO] [stdout]     |
[INFO] [stdout] 633 | fn enumUse() {
[INFO] [stdout]     |    ^^^^^^^ help: convert the identifier to snake case: `enum_use`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/main.rs:705:20
[INFO] [stdout]     |
[INFO] [stdout] 703 |     fn prepend(self, elem: u32) -> ListNew {
[INFO] [stdout]     |                ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 704 |         // `Cons` also has type List
[INFO] [stdout] 705 |         Cons(elem, Box::new(self))
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]     = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]     --> src/main.rs:1890:40
[INFO] [stdout]      |
[INFO] [stdout] 1890 |     println!("2 in array2: {}", array2.into_iter().any(|&x| x == 2));
[INFO] [stdout]      |                                        ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this changes meaning in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]      = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]      |
[INFO] [stdout] 1890 |     println!("2 in array2: {}", array2.iter().any(|&x| x == 2));
[INFO] [stdout]      |                                        ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]      |
[INFO] [stdout] 1890 |     println!("2 in array2: {}", IntoIterator::into_iter(array2).any(|&x| x == 2));
[INFO] [stdout]      |                                 ++++++++++++++++++++++++      ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]     --> src/main.rs:1915:47
[INFO] [stdout]      |
[INFO] [stdout] 1915 |     println!("Find 2 in array4: {:?}", array4.into_iter().find(|&&x| x == 2));
[INFO] [stdout]      |                                               ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this changes meaning in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]      |
[INFO] [stdout] 1915 |     println!("Find 2 in array4: {:?}", array4.iter().find(|&&x| x == 2));
[INFO] [stdout]      |                                               ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]      |
[INFO] [stdout] 1915 |     println!("Find 2 in array4: {:?}", IntoIterator::into_iter(array4).find(|&&x| x == 2));
[INFO] [stdout]      |                                        ++++++++++++++++++++++++      ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 111 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_by_example` (bin "rust_by_example") due to 2 previous errors; 111 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rust_by_example` (bin "rust_by_example" test) due to 2 previous errors; 111 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "8e54c062e62f1976afa7c9df64720f0f398abc9397da9ebf7b6b56dbe9c4a8f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e54c062e62f1976afa7c9df64720f0f398abc9397da9ebf7b6b56dbe9c4a8f1", kill_on_drop: false }`
[INFO] [stdout] 8e54c062e62f1976afa7c9df64720f0f398abc9397da9ebf7b6b56dbe9c4a8f1