[INFO] cloning repository https://github.com/baalismlin/rust_learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/baalismlin/rust_learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbaalismlin%2Frust_learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbaalismlin%2Frust_learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bbff3a503b90c8020a2f4ab9898e597005fde97f
[INFO] checking baalismlin/rust_learn against try#2c4e58eac5a232e49065e517c1cf50b2715ccf85 for pr-140283
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbaalismlin%2Frust_learn" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/baalismlin/rust_learn
[INFO] finished tweaking git repo https://github.com/baalismlin/rust_learn
[INFO] tweaked toml for git repo https://github.com/baalismlin/rust_learn written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/baalismlin/rust_learn on toolchain 2c4e58eac5a232e49065e517c1cf50b2715ccf85
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2c4e58eac5a232e49065e517c1cf50b2715ccf85" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/baalismlin/rust_learn 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" "+2c4e58eac5a232e49065e517c1cf50b2715ccf85" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking baalismlin/rust_learn against try#2c4e58eac5a232e49065e517c1cf50b2715ccf85 for pr-140283
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbaalismlin%2Frust_learn" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/baalismlin/rust_learn
[INFO] finished tweaking git repo https://github.com/baalismlin/rust_learn
[INFO] tweaked toml for git repo https://github.com/baalismlin/rust_learn written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/baalismlin/rust_learn on toolchain 2c4e58eac5a232e49065e517c1cf50b2715ccf85
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2c4e58eac5a232e49065e517c1cf50b2715ccf85" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/baalismlin/rust_learn 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" "+2c4e58eac5a232e49065e517c1cf50b2715ccf85" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2c4e58eac5a232e49065e517c1cf50b2715ccf85" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 22c611126d929b7f44f7f5cd613ffa9ce17a78138a269886d2084f136601b4a6
[INFO] running `Command { std: "docker" "start" "-a" "22c611126d929b7f44f7f5cd613ffa9ce17a78138a269886d2084f136601b4a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22c611126d929b7f44f7f5cd613ffa9ce17a78138a269886d2084f136601b4a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22c611126d929b7f44f7f5cd613ffa9ce17a78138a269886d2084f136601b4a6", kill_on_drop: false }`
[INFO] [stdout] 22c611126d929b7f44f7f5cd613ffa9ce17a78138a269886d2084f136601b4a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2c4e58eac5a232e49065e517c1cf50b2715ccf85" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b661fff26e69c9cf6afd96cea6ef460ed0406b473e3634f82721952012cb9b2a
[INFO] running `Command { std: "docker" "start" "-a" "b661fff26e69c9cf6afd96cea6ef460ed0406b473e3634f82721952012cb9b2a", kill_on_drop: false }`
[INFO] [stderr]     Checking rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:172:8
[INFO] [stdout]     |
[INFO] [stdout] 172 |     if (i > 4) {
[INFO] [stdout]     |        ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 172 -     if (i > 4) {
[INFO] [stdout] 172 +     if i > 4  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:172:8
[INFO] [stdout]     |
[INFO] [stdout] 172 |     if (i > 4) {
[INFO] [stdout]     |        ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 172 -     if (i > 4) {
[INFO] [stdout] 172 +     if i > 4  {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/main.rs:122:7
[INFO] [stdout]     |
[INFO] [stdout] 122 |   let a: i32 = -12;
[INFO] [stdout]     |       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 122 |   let _a: i32 = -12;
[INFO] [stdout]     |       +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `COSNT_Y`
[INFO] [stdout]     |
[INFO] [stdout] 122 -   let a: i32 = -12;
[INFO] [stdout] 122 +   let datatype::COSNT_Y: i32 = -12;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/main.rs:122:7
[INFO] [stdout]     |
[INFO] [stdout] 122 |   let a: i32 = -12;
[INFO] [stdout]     |       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 122 |   let _a: i32 = -12;
[INFO] [stdout]     |       +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `COSNT_Y`
[INFO] [stdout]     |
[INFO] [stdout] 122 -   let a: i32 = -12;
[INFO] [stdout] 122 +   let datatype::COSNT_Y: i32 = -12;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/main.rs:123:7
[INFO] [stdout]     |
[INFO] [stdout] 123 |   let b: u32 = 1_199;
[INFO] [stdout]     |       ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/main.rs:123:7
[INFO] [stdout]     |
[INFO] [stdout] 123 |   let b: u32 = 1_199;
[INFO] [stdout]     |       ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/main.rs:124:7
[INFO] [stdout]     |
[INFO] [stdout] 124 |   let c: bool = false;
[INFO] [stdout]     |       ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/main.rs:124:7
[INFO] [stdout]     |
[INFO] [stdout] 124 |   let c: bool = false;
[INFO] [stdout]     |       ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]    --> src/main.rs:125:7
[INFO] [stdout]     |
[INFO] [stdout] 125 |   let d: f64 = 10.213;
[INFO] [stdout]     |       ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]    --> src/main.rs:125:7
[INFO] [stdout]     |
[INFO] [stdout] 125 |   let d: f64 = 10.213;
[INFO] [stdout]     |       ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:126:7
[INFO] [stdout]     |
[INFO] [stdout] 126 |   let e: u32 = 0x12FF;
[INFO] [stdout]     |       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:126:7
[INFO] [stdout]     |
[INFO] [stdout] 126 |   let e: u32 = 0x12FF;
[INFO] [stdout]     |       ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/main.rs:127:7
[INFO] [stdout]     |
[INFO] [stdout] 127 |   let f: char = 'Z';
[INFO] [stdout]     |       ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/main.rs:127:7
[INFO] [stdout]     |
[INFO] [stdout] 127 |   let f: char = 'Z';
[INFO] [stdout]     |       ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]    --> src/main.rs:128:7
[INFO] [stdout]     |
[INFO] [stdout] 128 |   let g: u8 = b'Z';
[INFO] [stdout]     |       ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]    --> src/main.rs:128:7
[INFO] [stdout]     |
[INFO] [stdout] 128 |   let g: u8 = b'Z';
[INFO] [stdout]     |       ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heart_eyed_cat`
[INFO] [stdout]    --> src/main.rs:129:7
[INFO] [stdout]     |
[INFO] [stdout] 129 |   let heart_eyed_cat = '😻';
[INFO] [stdout]     |       ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_heart_eyed_cat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heart_eyed_cat`
[INFO] [stdout]    --> src/main.rs:129:7
[INFO] [stdout]     |
[INFO] [stdout] 129 |   let heart_eyed_cat = '😻';
[INFO] [stdout]     |       ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_heart_eyed_cat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/main.rs:134:8
[INFO] [stdout]     |
[INFO] [stdout] 134 |   let (x, _, z) = tup;
[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:134:8
[INFO] [stdout]     |
[INFO] [stdout] 134 |   let (x, _, z) = tup;
[INFO] [stdout]     |        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]    --> src/main.rs:134:14
[INFO] [stdout]     |
[INFO] [stdout] 134 |   let (x, _, z) = tup;
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]    --> src/main.rs:134:14
[INFO] [stdout]     |
[INFO] [stdout] 134 |   let (x, _, z) = tup;
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr`
[INFO] [stdout]    --> src/main.rs:136:7
[INFO] [stdout]     |
[INFO] [stdout] 136 |   let arr: [i32; 3] = [1,2,3];
[INFO] [stdout]     |       ^^^ help: if this is intentional, prefix it with an underscore: `_arr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr`
[INFO] [stdout]    --> src/main.rs:136:7
[INFO] [stdout]     |
[INFO] [stdout] 136 |   let arr: [i32; 3] = [1,2,3];
[INFO] [stdout]     |       ^^^ help: if this is intentional, prefix it with an underscore: `_arr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `default_value_arr`
[INFO] [stdout]    --> src/main.rs:137:7
[INFO] [stdout]     |
[INFO] [stdout] 137 |   let default_value_arr = [0, 20];
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_value_arr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `default_value_arr`
[INFO] [stdout]    --> src/main.rs:137:7
[INFO] [stdout]     |
[INFO] [stdout] 137 |   let default_value_arr = [0, 20];
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_value_arr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `return_value`
[INFO] [stdout]    --> src/main.rs:139:7
[INFO] [stdout]     |
[INFO] [stdout] 139 |   let return_value = another_function(199);
[INFO] [stdout]     |       ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 139 |   let _return_value = another_function(199);
[INFO] [stdout]     |       +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `COSNT_Y`
[INFO] [stdout]     |
[INFO] [stdout] 139 -   let return_value = another_function(199);
[INFO] [stdout] 139 +   let datatype::COSNT_Y = another_function(199);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `return_value`
[INFO] [stdout]    --> src/main.rs:139:7
[INFO] [stdout]     |
[INFO] [stdout] 139 |   let return_value = another_function(199);
[INFO] [stdout]     |       ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 139 |   let _return_value = another_function(199);
[INFO] [stdout]     |       +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `COSNT_Y`
[INFO] [stdout]     |
[INFO] [stdout] 139 -   let return_value = another_function(199);
[INFO] [stdout] 139 +   let datatype::COSNT_Y = another_function(199);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `square` is never used
[INFO] [stdout]   --> src/main.rs:22:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Rectangle {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |   fn square(size: u32) -> Self {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]   --> src/main.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | struct Color(i32, i32, i32);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> src/main.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Point(String, i32, i32);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `square` is never used
[INFO] [stdout]   --> src/main.rs:22:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Rectangle {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |   fn square(size: u32) -> Self {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]   --> src/main.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | struct User {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]   --> src/main.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | struct Color(i32, i32, i32);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `struct_function` is never used
[INFO] [stdout]   --> src/main.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn struct_function(email: String, username: String) -> User {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_word` is never used
[INFO] [stdout]   --> src/main.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn first_word(s: &str) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> src/main.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Point(String, i32, i32);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ownership` is never used
[INFO] [stdout]   --> src/main.rs:98:4
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn ownership() {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]   --> src/main.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | struct User {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `datatype` is never used
[INFO] [stdout]    --> src/main.rs:111:4
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn datatype() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `struct_function` is never used
[INFO] [stdout]   --> src/main.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn struct_function(email: String, username: String) -> User {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `another_function` is never used
[INFO] [stdout]    --> src/main.rs:147:4
[INFO] [stdout]     |
[INFO] [stdout] 147 | fn another_function(input: i32) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `condition_function` is never used
[INFO] [stdout]    --> src/main.rs:157:4
[INFO] [stdout]     |
[INFO] [stdout] 157 | fn condition_function(input: i32) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_word` is never used
[INFO] [stdout]   --> src/main.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn first_word(s: &str) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ownership` is never used
[INFO] [stdout]   --> src/main.rs:98:4
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn ownership() {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `loop_function` is never used
[INFO] [stdout]    --> src/main.rs:167:4
[INFO] [stdout]     |
[INFO] [stdout] 167 | fn loop_function() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `datatype` is never used
[INFO] [stdout]    --> src/main.rs:111:4
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn datatype() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `another_function` is never used
[INFO] [stdout]    --> src/main.rs:147:4
[INFO] [stdout]     |
[INFO] [stdout] 147 | fn another_function(input: i32) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `condition_function` is never used
[INFO] [stdout]    --> src/main.rs:157:4
[INFO] [stdout]     |
[INFO] [stdout] 157 | fn condition_function(input: i32) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `loop_function` is never used
[INFO] [stdout]    --> src/main.rs:167:4
[INFO] [stdout]     |
[INFO] [stdout] 167 | fn loop_function() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "b661fff26e69c9cf6afd96cea6ef460ed0406b473e3634f82721952012cb9b2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b661fff26e69c9cf6afd96cea6ef460ed0406b473e3634f82721952012cb9b2a", kill_on_drop: false }`
[INFO] [stdout] b661fff26e69c9cf6afd96cea6ef460ed0406b473e3634f82721952012cb9b2a