[INFO] cloning repository https://github.com/pahlavaubivca/rust_hello_world
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pahlavaubivca/rust_hello_world" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpahlavaubivca%2Frust_hello_world", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpahlavaubivca%2Frust_hello_world'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4390d6090c9404481aafb3a0f0541c780daa2793
[INFO] checking pahlavaubivca/rust_hello_world against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpahlavaubivca%2Frust_hello_world" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pahlavaubivca/rust_hello_world 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/pahlavaubivca/rust_hello_world
[INFO] finished tweaking git repo https://github.com/pahlavaubivca/rust_hello_world
[INFO] tweaked toml for git repo https://github.com/pahlavaubivca/rust_hello_world written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pahlavaubivca/rust_hello_world 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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a6a872318263a45d7778121d6545c3dd1ef52fc5a32a6ac48f3c7c3d033e8451
[INFO] running `Command { std: "docker" "start" "-a" "a6a872318263a45d7778121d6545c3dd1ef52fc5a32a6ac48f3c7c3d033e8451", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6a872318263a45d7778121d6545c3dd1ef52fc5a32a6ac48f3c7c3d033e8451", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6a872318263a45d7778121d6545c3dd1ef52fc5a32a6ac48f3c7c3d033e8451", kill_on_drop: false }`
[INFO] [stdout] a6a872318263a45d7778121d6545c3dd1ef52fc5a32a6ac48f3c7c3d033e8451
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 281c3e379b74f25279b03008f52a66e258f3b7b726570e4270376065b6abd79e
[INFO] running `Command { std: "docker" "start" "-a" "281c3e379b74f25279b03008f52a66e258f3b7b726570e4270376065b6abd79e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking hello-world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Stdio`
[INFO] [stdout]  --> src/main.rs:3:29
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::process::{Command, Stdio};
[INFO] [stdout]   |                             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::borrow::borrow_checker`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::borrow::borrow_checker;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ownership::example_ownership`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::ownership::example_ownership;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::references_with_lifetime::rwl`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::references_with_lifetime::rwl;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cons` and `Nil`
[INFO] [stdout]  --> src/main.rs:9:36
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::pointers::r#box::List::{Cons, Nil};
[INFO] [stdout]   |                                    ^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cons as RcCons` and `Nil as RcNil`
[INFO] [stdout]   --> src/main.rs:10:37
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::pointers::r#rc::RcList::{Cons as RcCons, Nil as RcNil};
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ll_proto_1_1` and `ll_proto_1`
[INFO] [stdout]   --> src/main.rs:11:49
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::training::linked_list::prototype_1::{ll_proto_1, ll_proto_1_1};
[INFO] [stdout]    |                                                 ^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::training::linked_list::prototype_2::ll_proto_2`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::training::linked_list::prototype_2::ll_proto_2;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/basic_variable_and_types.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Stdio`
[INFO] [stdout]  --> src/main.rs:3:29
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::process::{Command, Stdio};
[INFO] [stdout]   |                             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::borrow::borrow_checker`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::borrow::borrow_checker;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ownership::example_ownership`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::ownership::example_ownership;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::references_with_lifetime::rwl`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::references_with_lifetime::rwl;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cons` and `Nil`
[INFO] [stdout]  --> src/main.rs:9:36
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::pointers::r#box::List::{Cons, Nil};
[INFO] [stdout]   |                                    ^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Cons as RcCons` and `Nil as RcNil`
[INFO] [stdout]   --> src/main.rs:10:37
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::pointers::r#rc::RcList::{Cons as RcCons, Nil as RcNil};
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ll_proto_1_1` and `ll_proto_1`
[INFO] [stdout]   --> src/main.rs:11:49
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::training::linked_list::prototype_1::{ll_proto_1, ll_proto_1_1};
[INFO] [stdout]    |                                                 ^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::training::linked_list::prototype_2::ll_proto_2`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::training::linked_list::prototype_2::ll_proto_2;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/basic_variable_and_types.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::SplitPaths`
[INFO] [stdout]  --> src/generic.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env::SplitPaths;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]  --> src/pointers/box.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RefMut`
[INFO] [stdout]  --> src/training/linked_list/prototype_1.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::{RefCell, RefMut};
[INFO] [stdout]   |                          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DerefMut` and `Deref`
[INFO] [stdout]  --> src/training/linked_list/prototype_2.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::{Deref, DerefMut};
[INFO] [stdout]   |                ^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::training::linked_list::prototype_1::Node`
[INFO] [stdout]  --> src/training/linked_list/prototype_2.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::training::linked_list::prototype_1::Node;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::info`
[INFO] [stdout]  --> src/training/sum_2_nums/sum_2_nums.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use log::info;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::SplitPaths`
[INFO] [stdout]  --> src/generic.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env::SplitPaths;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Deref`
[INFO] [stdout]  --> src/pointers/box.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Deref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RefMut`
[INFO] [stdout]  --> src/training/linked_list/prototype_1.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::{RefCell, RefMut};
[INFO] [stdout]   |                          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DerefMut` and `Deref`
[INFO] [stdout]  --> src/training/linked_list/prototype_2.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::{Deref, DerefMut};
[INFO] [stdout]   |                ^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::training::linked_list::prototype_1::Node`
[INFO] [stdout]  --> src/training/linked_list/prototype_2.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::training::linked_list::prototype_1::Node;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::info`
[INFO] [stdout]  --> src/training/sum_2_nums/sum_2_nums.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use log::info;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     return;
[INFO] [stdout]    |     ------ any code following this expression is unreachable
[INFO] [stdout] 55 |     let fifo_path = "/tmp/xterm_fifo";
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `asd`
[INFO] [stdout]  --> src/basic_variable_and_types.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let asd = 89;
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_asd`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `asd`
[INFO] [stdout]   --> src/basic_variable_and_types.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let asd = asd.to_string();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_asd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `asd` is assigned to, but never used
[INFO] [stdout]   --> src/basic_variable_and_types.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut asd = 89;
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_asd` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `asd` is never read
[INFO] [stdout]   --> src/basic_variable_and_types.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     asd = 4;
[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: unused variable: `num`
[INFO] [stdout]   --> src/basic_variable_and_types.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let num: i32 = str_number.parse().expect("");
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `qwe`
[INFO] [stdout]   --> src/basic_variable_and_types.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let qwe = if asd == 1 { -1 } else { 0 };
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_qwe`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/basic_variable_and_types.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let result = loop {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     return;
[INFO] [stdout]    |     ------ any code following this expression is unreachable
[INFO] [stdout] 55 |     let fifo_path = "/tmp/xterm_fifo";
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/ownership.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let b = a.clone();
[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/ownership.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let b = a.clone();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `asd`
[INFO] [stdout]  --> src/basic_variable_and_types.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let asd = 89;
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_asd`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `asd`
[INFO] [stdout]   --> src/basic_variable_and_types.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let asd = asd.to_string();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_asd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `asd` is assigned to, but never used
[INFO] [stdout]   --> src/basic_variable_and_types.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut asd = 89;
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_asd` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `asd` is never read
[INFO] [stdout]   --> src/basic_variable_and_types.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     asd = 4;
[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: unused variable: `num`
[INFO] [stdout]   --> src/basic_variable_and_types.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let num: i32 = str_number.parse().expect("");
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `qwe`
[INFO] [stdout]   --> src/basic_variable_and_types.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let qwe = if asd == 1 { -1 } else { 0 };
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_qwe`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/basic_variable_and_types.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let result = loop {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `asd`
[INFO] [stdout]   --> src/struct.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let asd = vec![1,2,3];
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_asd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/ownership.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let b = a.clone();
[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/ownership.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let b = a.clone();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/trait.rs:59:30
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn notify_multiple_trait(item: &(impl Summary + Display)) {}
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/trait.rs:61:60
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn notify_multiple_trait_generic<T: Summary + Display>(item: &T) {}
[INFO] [stdout]    |                                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/trait.rs:64:34
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn notify_mtg_alternative<T>(item: &T)
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `asd`
[INFO] [stdout]   --> src/struct.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let asd = vec![1,2,3];
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_asd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str1`
[INFO] [stdout]   --> src/references_with_lifetime.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let str1 = String::from("long string");
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_str1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str2`
[INFO] [stdout]   --> src/references_with_lifetime.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let str2 = String::from("shrt str");
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_str2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/references_with_lifetime.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let i = ImportantExcerpt {//hold ref to the first sentence of the String owned by `novel` variable.
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/references_with_lifetime.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let s: &'static str = "static lifetime 🙄";
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/pointers/rc.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let b = RcList::Cons(3, Rc::clone(&a));
[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/pointers/rc.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let c = RcList::Cons(4, Rc::clone(&a));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `list`
[INFO] [stdout]   --> src/pointers/box.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let list = Cons(1,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/trait.rs:59:30
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn notify_multiple_trait(item: &(impl Summary + Display)) {}
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/trait.rs:61:60
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn notify_multiple_trait_generic<T: Summary + Display>(item: &T) {}
[INFO] [stdout]    |                                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/trait.rs:64:34
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn notify_mtg_alternative<T>(item: &T)
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/pointers/drop_trait.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let c = CustomSmartPointer {
[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/pointers/drop_trait.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let d = CustomSmartPointer {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str1`
[INFO] [stdout]   --> src/references_with_lifetime.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let str1 = String::from("long string");
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_str1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str2`
[INFO] [stdout]   --> src/references_with_lifetime.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let str2 = String::from("shrt str");
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_str2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/references_with_lifetime.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let i = ImportantExcerpt {//hold ref to the first sentence of the String owned by `novel` variable.
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/references_with_lifetime.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let s: &'static str = "static lifetime 🙄";
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/pointers/rc.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let b = RcList::Cons(3, Rc::clone(&a));
[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/pointers/rc.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let c = RcList::Cons(4, Rc::clone(&a));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `list`
[INFO] [stdout]   --> src/pointers/box.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let list = Cons(1,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/pointers/drop_trait.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let c = CustomSmartPointer {
[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/pointers/drop_trait.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let d = CustomSmartPointer {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/training/linked_list/prototype_2.rs:75:30
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn remove(&mut self, index: usize) {}
[INFO] [stdout]    |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_of_shadowing` is never used
[INFO] [stdout]  --> src/basic_variable_and_types.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn example_of_shadowing() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_of_mut` is never used
[INFO] [stdout]   --> src/basic_variable_and_types.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn example_of_mut() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_of_converting_from_string` is never used
[INFO] [stdout]   --> src/basic_variable_and_types.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn example_of_converting_from_string() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_of_assigning` is never used
[INFO] [stdout]   --> src/basic_variable_and_types.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn example_of_assigning() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_of_loop` is never used
[INFO] [stdout]   --> src/basic_variable_and_types.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn example_of_loop() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `loop_through_collection` is never used
[INFO] [stdout]   --> src/basic_variable_and_types.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn loop_through_collection() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_ownership` is never used
[INFO] [stdout]   --> src/ownership.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn example_ownership() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_ownership_clone` is never used
[INFO] [stdout]   --> src/ownership.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn example_ownership_clone() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Some` is never constructed
[INFO] [stdout]   --> src/ownership.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Some {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `display` is never used
[INFO] [stdout]   --> src/ownership.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl Some {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 38 |     pub fn display(&self) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `borrow_checker` is never used
[INFO] [stdout]  --> src/borrow.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn borrow_checker() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `slice` is never used
[INFO] [stdout]  --> src/slice.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn slice() {}
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_word_index_of_end` is never used
[INFO] [stdout]  --> src/slice.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn first_word_index_of_end(s: &String) -> usize {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `string_slices` is never used
[INFO] [stdout]   --> src/slice.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn string_slices(s: &String) -> &str {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> src/struct.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Rectangle {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `work_with_struct` is never used
[INFO] [stdout]  --> src/struct.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn work_with_struct() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `largest` is never used
[INFO] [stdout]  --> src/generic.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn largest<T: PartialOrd>(list: &[T]) -> &T {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generic_example_run` is never used
[INFO] [stdout]   --> src/generic.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn generic_example_run() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> src/generic.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Point<T> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `x` is never used
[INFO] [stdout]   --> src/generic.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl<T> Point<T> {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] 28 |     fn x(&self) -> &T {
[INFO] [stdout]    |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_of_use_point` is never used
[INFO] [stdout]   --> src/generic.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn example_of_use_point() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `summarize` and `summarize_with_implementation` are never used
[INFO] [stdout]  --> src/trait.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub trait Summary {
[INFO] [stdout]   |           ------- methods in this trait
[INFO] [stdout] 8 |     fn summarize(&self) -> String;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 9 |     fn summarize_with_implementation(&self) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `content` is never read
[INFO] [stdout]   --> src/trait.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct NewsArticle {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub content: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `reply` and `retweet` are never read
[INFO] [stdout]   --> src/trait.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct Tweet {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub reply: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 31 |     pub retweet: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `notify` is never used
[INFO] [stdout]   --> src/trait.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn notify(item: &impl Summary) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `notify_bound_syntax` is never used
[INFO] [stdout]   --> src/trait.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn notify_bound_syntax<T: Summary>(item: &T) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `notify_multiple_trait` is never used
[INFO] [stdout]   --> src/trait.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn notify_multiple_trait(item: &(impl Summary + Display)) {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `notify_multiple_trait_generic` is never used
[INFO] [stdout]   --> src/trait.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn notify_multiple_trait_generic<T: Summary + Display>(item: &T) {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `notify_mtg_alternative` is never used
[INFO] [stdout]   --> src/trait.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn notify_mtg_alternative<T>(item: &T)
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `returns_summarizable` is never used
[INFO] [stdout]   --> src/trait.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn returns_summarizable() -> impl Summary {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `S1` is never constructed
[INFO] [stdout]   --> src/trait.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | struct S1 {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/training/linked_list/prototype_2.rs:75:30
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn remove(&mut self, index: usize) {}
[INFO] [stdout]    |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `S2` is never constructed
[INFO] [stdout]   --> src/trait.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | struct S2 {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `S1S2Using` is never used
[INFO] [stdout]    --> src/trait.rs:102:4
[INFO] [stdout]     |
[INFO] [stdout] 102 | fn S1S2Using() -> Box<dyn Summary> {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]    --> src/trait.rs:119:8
[INFO] [stdout]     |
[INFO] [stdout] 119 | struct Pair<T> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/trait.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 124 | impl<T> Pair<T> {
[INFO] [stdout]     | --------------- associated function in this implementation
[INFO] [stdout] 125 |     fn new(x: T, y: T) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cmp_display` is never used
[INFO] [stdout]    --> src/trait.rs:133:8
[INFO] [stdout]     |
[INFO] [stdout] 132 | impl<T: Display + PartialOrd> Pair<T> {
[INFO] [stdout]     | ------------------------------------- method in this implementation
[INFO] [stdout] 133 |     fn cmp_display(&self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rwl` is never used
[INFO] [stdout]   --> src/references_with_lifetime.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn rwl<'a>(str1: &'a str, str2: &'a str) -> &'a str {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rwlResult` is never used
[INFO] [stdout]   --> src/references_with_lifetime.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn rwlResult() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ImportantExcerpt` is never constructed
[INFO] [stdout]   --> src/references_with_lifetime.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | struct ImportantExcerpt<'a> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `asdf` is never used
[INFO] [stdout]   --> src/references_with_lifetime.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn asdf() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `static_lifetime` is never used
[INFO] [stdout]   --> src/references_with_lifetime.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn static_lifetime() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `longest_with_an_announcement` is never used
[INFO] [stdout]   --> src/references_with_lifetime.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn longest_with_an_announcement<'a, T>(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `e` is never used
[INFO] [stdout]   --> src/pointers/mod.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn e() {}
[INFO] [stdout]    |    ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RcList` is never used
[INFO] [stdout]   --> src/pointers/rc.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum RcList {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rc_example` is never used
[INFO] [stdout]   --> src/pointers/rc.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn rc_example() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]   --> src/pointers/box.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum List {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nested_list` is never used
[INFO] [stdout]   --> src/pointers/box.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn nested_list() {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyBox` is never constructed
[INFO] [stdout]  --> src/pointers/defer_trait.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct MyBox<T>(T);
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/pointers/defer_trait.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl<T> MyBox<T> {
[INFO] [stdout]   | ---------------- associated function in this implementation
[INFO] [stdout] 7 |     fn new(x: T) -> MyBox<T> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hello` is never used
[INFO] [stdout]   --> src/pointers/defer_trait.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn hello(name: &str) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `deref_coercion_example` is never used
[INFO] [stdout]   --> src/pointers/defer_trait.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn deref_coercion_example() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `no_deref_coercion_example` is never used
[INFO] [stdout]   --> src/pointers/defer_trait.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn no_deref_coercion_example() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CustomSmartPointer` is never constructed
[INFO] [stdout]  --> src/pointers/drop_trait.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct CustomSmartPointer {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `drop_usage_example` is never used
[INFO] [stdout]   --> src/pointers/drop_trait.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn drop_usage_example() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `drop_example` is never used
[INFO] [stdout]   --> src/pointers/drop_trait.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn drop_example() {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Messenger` is never used
[INFO] [stdout]   --> src/pointers/refcell.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub trait Messenger {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LimitTracker` is never constructed
[INFO] [stdout]   --> src/pointers/refcell.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct LimitTracker<'a, T: Messenger> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `set_value` are never used
[INFO] [stdout]   --> src/pointers/refcell.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | / impl<'a, T> LimitTracker<'a, T>
[INFO] [stdout] 26 | |     where
[INFO] [stdout] 27 | |         T: Messenger,
[INFO] [stdout]    | |_____________________- associated items in this implementation
[INFO] [stdout] 28 |   {
[INFO] [stdout] 29 |       pub fn new(messenger: &'a T, max: usize) -> LimitTracker<'a, T> {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |       pub fn set_value(&mut self, value: usize) {
[INFO] [stdout]    |              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]    --> src/pointers/refcell.rs:115:6
[INFO] [stdout]     |
[INFO] [stdout] 115 | enum List {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rc_rccell_list_usage` is never used
[INFO] [stdout]    --> src/pointers/refcell.rs:120:4
[INFO] [stdout]     |
[INFO] [stdout] 120 | fn rc_rccell_list_usage() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MmList` is never used
[INFO] [stdout]  --> src/pointers/memory_leak.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum MmList {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_of_shadowing` is never used
[INFO] [stdout]  --> src/basic_variable_and_types.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn example_of_shadowing() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `tail` is never used
[INFO] [stdout]   --> src/pointers/memory_leak.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl MmList {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 11 |     fn tail(&self) -> Option<&RefCell<Rc<MmList>>> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mem_leak` is never used
[INFO] [stdout]   --> src/pointers/memory_leak.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn mem_leak() {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_of_mut` is never used
[INFO] [stdout]   --> src/basic_variable_and_types.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn example_of_mut() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]  --> src/training/linked_list/prototype_1.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Node<T> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_of_converting_from_string` is never used
[INFO] [stdout]   --> src/basic_variable_and_types.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn example_of_converting_from_string() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/training/linked_list/prototype_1.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl<T> Node<T> {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 12 |     pub fn new(value: T) -> Node<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_of_assigning` is never used
[INFO] [stdout]   --> src/basic_variable_and_types.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn example_of_assigning() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_of_loop` is never used
[INFO] [stdout]   --> src/basic_variable_and_types.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn example_of_loop() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `loop_through_collection` is never used
[INFO] [stdout]   --> src/basic_variable_and_types.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn loop_through_collection() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_ownership` is never used
[INFO] [stdout]   --> src/ownership.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn example_ownership() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_ownership_clone` is never used
[INFO] [stdout]   --> src/ownership.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn example_ownership_clone() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Some` is never constructed
[INFO] [stdout]   --> src/ownership.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Some {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ll_proto_1` is never used
[INFO] [stdout]   --> src/training/linked_list/prototype_1.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn ll_proto_1() {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `display` is never used
[INFO] [stdout]   --> src/ownership.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl Some {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 38 |     pub fn display(&self) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NodeV2` is never constructed
[INFO] [stdout]   --> src/training/linked_list/prototype_1.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct NodeV2<T> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `borrow_checker` is never used
[INFO] [stdout]  --> src/borrow.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn borrow_checker() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `slice` is never used
[INFO] [stdout]  --> src/slice.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn slice() {}
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set_next`, and `get_value` are never used
[INFO] [stdout]   --> src/training/linked_list/prototype_1.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 70 | impl<T> NodeV2<T> {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] 71 |     pub fn new(value: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |     pub fn set_next(&mut self, node: NodeV2<T>) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     pub fn get_value(&self)->&T{
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_word_index_of_end` is never used
[INFO] [stdout]  --> src/slice.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn first_word_index_of_end(s: &String) -> usize {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ll_proto_1_1` is never used
[INFO] [stdout]   --> src/training/linked_list/prototype_1.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn ll_proto_1_1() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `string_slices` is never used
[INFO] [stdout]   --> src/slice.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn string_slices(s: &String) -> &str {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> src/struct.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Rectangle {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `work_with_struct` is never used
[INFO] [stdout]  --> src/struct.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn work_with_struct() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NodeV2` is never constructed
[INFO] [stdout]  --> src/training/linked_list/prototype_2.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct NodeV2<T> {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `largest` is never used
[INFO] [stdout]  --> src/generic.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn largest<T: PartialOrd>(list: &[T]) -> &T {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LinkedList` is never constructed
[INFO] [stdout]   --> src/training/linked_list/prototype_2.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct LinkedList<T> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generic_example_run` is never used
[INFO] [stdout]   --> src/generic.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn generic_example_run() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> src/generic.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Point<T> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add`, `move_next`, `move_prev`, and `remove` are never used
[INFO] [stdout]   --> src/training/linked_list/prototype_2.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl<T> LinkedList<T> {
[INFO] [stdout]    | --------------------- associated items in this implementation
[INFO] [stdout] 20 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn add(&mut self, value: T) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn move_next(&mut self) -> Option<Ref<NodeV2<T>>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn move_prev() -> Option<Rc<RefCell<NodeV2<T>>>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75 |     pub fn remove(&mut self, index: usize) {}
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `x` is never used
[INFO] [stdout]   --> src/generic.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl<T> Point<T> {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] 28 |     fn x(&self) -> &T {
[INFO] [stdout]    |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ll_proto_2` is never used
[INFO] [stdout]   --> src/training/linked_list/prototype_2.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn ll_proto_2() {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_of_use_point` is never used
[INFO] [stdout]   --> src/generic.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn example_of_use_point() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `summarize` and `summarize_with_implementation` are never used
[INFO] [stdout]  --> src/trait.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub trait Summary {
[INFO] [stdout]   |           ------- methods in this trait
[INFO] [stdout] 8 |     fn summarize(&self) -> String;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 9 |     fn summarize_with_implementation(&self) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `S1S2Using` should have a snake case name
[INFO] [stdout]    --> src/trait.rs:102:4
[INFO] [stdout]     |
[INFO] [stdout] 102 | fn S1S2Using() -> Box<dyn Summary> {
[INFO] [stdout]     |    ^^^^^^^^^ help: convert the identifier to snake case: `s1_s2_using`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `content` is never read
[INFO] [stdout]   --> src/trait.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct NewsArticle {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub content: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rwlResult` should have a snake case name
[INFO] [stdout]   --> src/references_with_lifetime.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn rwlResult() {
[INFO] [stdout]    |        ^^^^^^^^^ help: convert the identifier to snake case: `rwl_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `reply` and `retweet` are never read
[INFO] [stdout]   --> src/trait.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct Tweet {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub reply: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 31 |     pub retweet: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 114 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `notify` is never used
[INFO] [stdout]   --> src/trait.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn notify(item: &impl Summary) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `notify_bound_syntax` is never used
[INFO] [stdout]   --> src/trait.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn notify_bound_syntax<T: Summary>(item: &T) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `notify_multiple_trait` is never used
[INFO] [stdout]   --> src/trait.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn notify_multiple_trait(item: &(impl Summary + Display)) {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `notify_multiple_trait_generic` is never used
[INFO] [stdout]   --> src/trait.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn notify_multiple_trait_generic<T: Summary + Display>(item: &T) {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `notify_mtg_alternative` is never used
[INFO] [stdout]   --> src/trait.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn notify_mtg_alternative<T>(item: &T)
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `returns_summarizable` is never used
[INFO] [stdout]   --> src/trait.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn returns_summarizable() -> impl Summary {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `S1` is never constructed
[INFO] [stdout]   --> src/trait.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | struct S1 {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `S2` is never constructed
[INFO] [stdout]   --> src/trait.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | struct S2 {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `S1S2Using` is never used
[INFO] [stdout]    --> src/trait.rs:102:4
[INFO] [stdout]     |
[INFO] [stdout] 102 | fn S1S2Using() -> Box<dyn Summary> {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]    --> src/trait.rs:119:8
[INFO] [stdout]     |
[INFO] [stdout] 119 | struct Pair<T> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/trait.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 124 | impl<T> Pair<T> {
[INFO] [stdout]     | --------------- associated function in this implementation
[INFO] [stdout] 125 |     fn new(x: T, y: T) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cmp_display` is never used
[INFO] [stdout]    --> src/trait.rs:133:8
[INFO] [stdout]     |
[INFO] [stdout] 132 | impl<T: Display + PartialOrd> Pair<T> {
[INFO] [stdout]     | ------------------------------------- method in this implementation
[INFO] [stdout] 133 |     fn cmp_display(&self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rwl` is never used
[INFO] [stdout]   --> src/references_with_lifetime.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn rwl<'a>(str1: &'a str, str2: &'a str) -> &'a str {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rwlResult` is never used
[INFO] [stdout]   --> src/references_with_lifetime.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn rwlResult() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ImportantExcerpt` is never constructed
[INFO] [stdout]   --> src/references_with_lifetime.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | struct ImportantExcerpt<'a> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `asdf` is never used
[INFO] [stdout]   --> src/references_with_lifetime.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn asdf() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `static_lifetime` is never used
[INFO] [stdout]   --> src/references_with_lifetime.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn static_lifetime() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `longest_with_an_announcement` is never used
[INFO] [stdout]   --> src/references_with_lifetime.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn longest_with_an_announcement<'a, T>(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `e` is never used
[INFO] [stdout]   --> src/pointers/mod.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn e() {}
[INFO] [stdout]    |    ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RcList` is never used
[INFO] [stdout]   --> src/pointers/rc.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum RcList {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rc_example` is never used
[INFO] [stdout]   --> src/pointers/rc.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn rc_example() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]   --> src/pointers/box.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum List {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nested_list` is never used
[INFO] [stdout]   --> src/pointers/box.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn nested_list() {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyBox` is never constructed
[INFO] [stdout]  --> src/pointers/defer_trait.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct MyBox<T>(T);
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/pointers/defer_trait.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl<T> MyBox<T> {
[INFO] [stdout]   | ---------------- associated function in this implementation
[INFO] [stdout] 7 |     fn new(x: T) -> MyBox<T> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hello` is never used
[INFO] [stdout]   --> src/pointers/defer_trait.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn hello(name: &str) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `deref_coercion_example` is never used
[INFO] [stdout]   --> src/pointers/defer_trait.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn deref_coercion_example() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `no_deref_coercion_example` is never used
[INFO] [stdout]   --> src/pointers/defer_trait.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn no_deref_coercion_example() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CustomSmartPointer` is never constructed
[INFO] [stdout]  --> src/pointers/drop_trait.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct CustomSmartPointer {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `drop_usage_example` is never used
[INFO] [stdout]   --> src/pointers/drop_trait.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn drop_usage_example() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `drop_example` is never used
[INFO] [stdout]   --> src/pointers/drop_trait.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn drop_example() {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send` is never used
[INFO] [stdout]   --> src/pointers/refcell.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub trait Messenger {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 16 |     fn send(&self, msg: &str);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LimitTracker` is never constructed
[INFO] [stdout]   --> src/pointers/refcell.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct LimitTracker<'a, T: Messenger> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `set_value` are never used
[INFO] [stdout]   --> src/pointers/refcell.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | / impl<'a, T> LimitTracker<'a, T>
[INFO] [stdout] 26 | |     where
[INFO] [stdout] 27 | |         T: Messenger,
[INFO] [stdout]    | |_____________________- associated items in this implementation
[INFO] [stdout] 28 |   {
[INFO] [stdout] 29 |       pub fn new(messenger: &'a T, max: usize) -> LimitTracker<'a, T> {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |       pub fn set_value(&mut self, value: usize) {
[INFO] [stdout]    |              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]    --> src/pointers/refcell.rs:115:6
[INFO] [stdout]     |
[INFO] [stdout] 115 | enum List {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rc_rccell_list_usage` is never used
[INFO] [stdout]    --> src/pointers/refcell.rs:120:4
[INFO] [stdout]     |
[INFO] [stdout] 120 | fn rc_rccell_list_usage() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MmList` is never used
[INFO] [stdout]  --> src/pointers/memory_leak.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum MmList {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `tail` is never used
[INFO] [stdout]   --> src/pointers/memory_leak.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl MmList {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 11 |     fn tail(&self) -> Option<&RefCell<Rc<MmList>>> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mem_leak` is never used
[INFO] [stdout]   --> src/pointers/memory_leak.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn mem_leak() {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]  --> src/training/linked_list/prototype_1.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Node<T> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/training/linked_list/prototype_1.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl<T> Node<T> {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 12 |     pub fn new(value: T) -> Node<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ll_proto_1` is never used
[INFO] [stdout]   --> src/training/linked_list/prototype_1.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn ll_proto_1() {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NodeV2` is never constructed
[INFO] [stdout]   --> src/training/linked_list/prototype_1.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct NodeV2<T> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set_next`, and `get_value` are never used
[INFO] [stdout]   --> src/training/linked_list/prototype_1.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 70 | impl<T> NodeV2<T> {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] 71 |     pub fn new(value: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |     pub fn set_next(&mut self, node: NodeV2<T>) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     pub fn get_value(&self)->&T{
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ll_proto_1_1` is never used
[INFO] [stdout]   --> src/training/linked_list/prototype_1.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn ll_proto_1_1() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NodeV2` is never constructed
[INFO] [stdout]  --> src/training/linked_list/prototype_2.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct NodeV2<T> {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LinkedList` is never constructed
[INFO] [stdout]   --> src/training/linked_list/prototype_2.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct LinkedList<T> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add`, `move_next`, `move_prev`, and `remove` are never used
[INFO] [stdout]   --> src/training/linked_list/prototype_2.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl<T> LinkedList<T> {
[INFO] [stdout]    | --------------------- associated items in this implementation
[INFO] [stdout] 20 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn add(&mut self, value: T) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn move_next(&mut self) -> Option<Ref<NodeV2<T>>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn move_prev() -> Option<Rc<RefCell<NodeV2<T>>>> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75 |     pub fn remove(&mut self, index: usize) {}
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ll_proto_2` is never used
[INFO] [stdout]   --> src/training/linked_list/prototype_2.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn ll_proto_2() {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `S1S2Using` should have a snake case name
[INFO] [stdout]    --> src/trait.rs:102:4
[INFO] [stdout]     |
[INFO] [stdout] 102 | fn S1S2Using() -> Box<dyn Summary> {
[INFO] [stdout]     |    ^^^^^^^^^ help: convert the identifier to snake case: `s1_s2_using`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rwlResult` should have a snake case name
[INFO] [stdout]   --> src/references_with_lifetime.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn rwlResult() {
[INFO] [stdout]    |        ^^^^^^^^^ help: convert the identifier to snake case: `rwl_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 114 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "281c3e379b74f25279b03008f52a66e258f3b7b726570e4270376065b6abd79e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "281c3e379b74f25279b03008f52a66e258f3b7b726570e4270376065b6abd79e", kill_on_drop: false }`
[INFO] [stdout] 281c3e379b74f25279b03008f52a66e258f3b7b726570e4270376065b6abd79e