[INFO] cloning repository https://github.com/iangaunt/rust-projects
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iangaunt/rust-projects" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiangaunt%2Frust-projects", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiangaunt%2Frust-projects'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f78fb975464089dac50b75de56d80881685ca3ff
[INFO] testing iangaunt/rust-projects against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiangaunt%2Frust-projects" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/iangaunt/rust-projects
[INFO] finished tweaking git repo https://github.com/iangaunt/rust-projects
[INFO] tweaked toml for git repo https://github.com/iangaunt/rust-projects written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/iangaunt/rust-projects on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/iangaunt/rust-projects 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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3710631ab1e6f031459137cd58b61627cdac2c3fc3026f8e793834743193e18d
[INFO] running `Command { std: "docker" "start" "-a" "3710631ab1e6f031459137cd58b61627cdac2c3fc3026f8e793834743193e18d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3710631ab1e6f031459137cd58b61627cdac2c3fc3026f8e793834743193e18d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3710631ab1e6f031459137cd58b61627cdac2c3fc3026f8e793834743193e18d", kill_on_drop: false }`
[INFO] [stdout] 3710631ab1e6f031459137cd58b61627cdac2c3fc3026f8e793834743193e18d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 121a32f4ef772e7f75b1dfc24dea3c77e6b57bb4eb7732e7c326bab0a9fb12cc
[INFO] running `Command { std: "docker" "start" "-a" "121a32f4ef772e7f75b1dfc24dea3c77e6b57bb4eb7732e7c326bab0a9fb12cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rust-projects v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `nodes::TreeNode`
[INFO] [stdout]  --> src/tut/structs.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use nodes::TreeNode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tut/../structs/nodes.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let mut queue: Vec<Box<TreeNode<T>>> = Vec::new();
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vec`
[INFO] [stdout]   --> src/tut/../structs/nodes.rs:35:34
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn build_tree(&mut self, vec: Vec<T>) {
[INFO] [stdout]    |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_vec`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `queue`
[INFO] [stdout]   --> src/tut/../structs/nodes.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let mut queue: Vec<Box<TreeNode<T>>> = Vec::new();
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_queue`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `rect` is never read
[INFO] [stdout]   --> src/tut/structs.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     rect.width = 15;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `rect` is never read
[INFO] [stdout]   --> src/tut/structs.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     rect.height = 20;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `circ` is never read
[INFO] [stdout]   --> src/tut/structs.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     circ.radius = 15;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TreeNode` is never constructed
[INFO] [stdout]   --> src/tut/../structs/nodes.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct TreeNode<T> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set_left`, `set_right`, and `build_tree` are never used
[INFO] [stdout]   --> src/tut/../structs/nodes.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl<T> TreeNode<T> {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 22 |     #[inline]
[INFO] [stdout] 23 |     pub fn new(val: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn set_left(&mut self, node: TreeNode<T>) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn set_right(&mut self, node: TreeNode<T>) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn build_tree(&mut self, vec: Vec<T>) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_odd` is never used
[INFO] [stdout]    --> src/practice/codewars.rs:103:4
[INFO] [stdout]     |
[INFO] [stdout] 103 | fn find_odd(arr: &[i32]) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `short_find_odd` is never used
[INFO] [stdout]    --> src/practice/codewars.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn short_find_odd(arr: &[i32]) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.68s
[INFO] running `Command { std: "docker" "inspect" "121a32f4ef772e7f75b1dfc24dea3c77e6b57bb4eb7732e7c326bab0a9fb12cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "121a32f4ef772e7f75b1dfc24dea3c77e6b57bb4eb7732e7c326bab0a9fb12cc", kill_on_drop: false }`
[INFO] [stdout] 121a32f4ef772e7f75b1dfc24dea3c77e6b57bb4eb7732e7c326bab0a9fb12cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ac876ad478c4a9de1af56be2d001e6bed4af6dd5e13c4dbdc7517a18a8972f9
[INFO] running `Command { std: "docker" "start" "-a" "5ac876ad478c4a9de1af56be2d001e6bed4af6dd5e13c4dbdc7517a18a8972f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-projects v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `nodes::TreeNode`
[INFO] [stdout]  --> src/tut/structs.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use nodes::TreeNode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tut/../structs/nodes.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let mut queue: Vec<Box<TreeNode<T>>> = Vec::new();
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vec`
[INFO] [stdout]   --> src/tut/../structs/nodes.rs:35:34
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn build_tree(&mut self, vec: Vec<T>) {
[INFO] [stdout]    |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_vec`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `queue`
[INFO] [stdout]   --> src/tut/../structs/nodes.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let mut queue: Vec<Box<TreeNode<T>>> = Vec::new();
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_queue`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `rect` is never read
[INFO] [stdout]   --> src/tut/structs.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     rect.width = 15;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `rect` is never read
[INFO] [stdout]   --> src/tut/structs.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     rect.height = 20;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `circ` is never read
[INFO] [stdout]   --> src/tut/structs.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     circ.radius = 15;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TreeNode` is never constructed
[INFO] [stdout]   --> src/tut/../structs/nodes.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct TreeNode<T> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set_left`, `set_right`, and `build_tree` are never used
[INFO] [stdout]   --> src/tut/../structs/nodes.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl<T> TreeNode<T> {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 22 |     #[inline]
[INFO] [stdout] 23 |     pub fn new(val: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn set_left(&mut self, node: TreeNode<T>) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn set_right(&mut self, node: TreeNode<T>) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn build_tree(&mut self, vec: Vec<T>) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_odd` is never used
[INFO] [stdout]    --> src/practice/codewars.rs:103:4
[INFO] [stdout]     |
[INFO] [stdout] 103 | fn find_odd(arr: &[i32]) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `short_find_odd` is never used
[INFO] [stdout]    --> src/practice/codewars.rs:126:4
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn short_find_odd(arr: &[i32]) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "5ac876ad478c4a9de1af56be2d001e6bed4af6dd5e13c4dbdc7517a18a8972f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ac876ad478c4a9de1af56be2d001e6bed4af6dd5e13c4dbdc7517a18a8972f9", kill_on_drop: false }`
[INFO] [stdout] 5ac876ad478c4a9de1af56be2d001e6bed4af6dd5e13c4dbdc7517a18a8972f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 776de202444224b889f55fca4f9902da17f68314516a2719f9de713b161f2015
[INFO] running `Command { std: "docker" "start" "-a" "776de202444224b889f55fca4f9902da17f68314516a2719f9de713b161f2015", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `nodes::TreeNode`
[INFO] [stderr]  --> src/tut/structs.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use nodes::TreeNode;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tut/../structs/nodes.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let mut queue: Vec<Box<TreeNode<T>>> = Vec::new();
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vec`
[INFO] [stderr]   --> src/tut/../structs/nodes.rs:35:34
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn build_tree(&mut self, vec: Vec<T>) {
[INFO] [stderr]    |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_vec`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `queue`
[INFO] [stderr]   --> src/tut/../structs/nodes.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let mut queue: Vec<Box<TreeNode<T>>> = Vec::new();
[INFO] [stderr]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_queue`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `rect` is never read
[INFO] [stderr]   --> src/tut/structs.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     rect.width = 15;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `rect` is never read
[INFO] [stderr]   --> src/tut/structs.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     rect.height = 20;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `circ` is never read
[INFO] [stderr]   --> src/tut/structs.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 |     circ.radius = 15;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: struct `TreeNode` is never constructed
[INFO] [stderr]   --> src/tut/../structs/nodes.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub struct TreeNode<T> {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `set_left`, `set_right`, and `build_tree` are never used
[INFO] [stderr]   --> src/tut/../structs/nodes.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | impl<T> TreeNode<T> {
[INFO] [stderr]    | ------------------- associated items in this implementation
[INFO] [stderr] 22 |     #[inline]
[INFO] [stderr] 23 |     pub fn new(val: T) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 27 |     pub fn set_left(&mut self, node: TreeNode<T>) {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 31 |     pub fn set_right(&mut self, node: TreeNode<T>) {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 35 |     pub fn build_tree(&mut self, vec: Vec<T>) {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_odd` is never used
[INFO] [stderr]    --> src/practice/codewars.rs:103:4
[INFO] [stderr]     |
[INFO] [stderr] 103 | fn find_odd(arr: &[i32]) -> i32 {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `short_find_odd` is never used
[INFO] [stderr]    --> src/practice/codewars.rs:126:4
[INFO] [stderr]     |
[INFO] [stderr] 126 | fn short_find_odd(arr: &[i32]) -> i32 {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-projects` (bin "rust-projects" test) generated 11 warnings (run `cargo fix --bin "rust-projects" -p rust-projects --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_projects-ef23718d503a5a71)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "776de202444224b889f55fca4f9902da17f68314516a2719f9de713b161f2015", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "776de202444224b889f55fca4f9902da17f68314516a2719f9de713b161f2015", kill_on_drop: false }`
[INFO] [stdout] 776de202444224b889f55fca4f9902da17f68314516a2719f9de713b161f2015
