[INFO] cloning repository https://github.com/ign3u5/RustGuessingGame
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ign3u5/RustGuessingGame" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fign3u5%2FRustGuessingGame", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fign3u5%2FRustGuessingGame'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aad3a4927e045387568ba6aa495eb3146e592f0a
[INFO] checking ign3u5/RustGuessingGame against try#b32fc44666c052e7cf07ab471bfb6f9ec571902f for pr-138676
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fign3u5%2FRustGuessingGame" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ign3u5/RustGuessingGame on toolchain b32fc44666c052e7cf07ab471bfb6f9ec571902f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b32fc44666c052e7cf07ab471bfb6f9ec571902f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ign3u5/RustGuessingGame
[INFO] finished tweaking git repo https://github.com/ign3u5/RustGuessingGame
[INFO] tweaked toml for git repo https://github.com/ign3u5/RustGuessingGame written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ign3u5/RustGuessingGame 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" "+b32fc44666c052e7cf07ab471bfb6f9ec571902f" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+b32fc44666c052e7cf07ab471bfb6f9ec571902f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5926684881d95d9e772a869cb31d6a6b27df360397dffac8aa054e50cf5e5ec1
[INFO] running `Command { std: "docker" "start" "-a" "5926684881d95d9e772a869cb31d6a6b27df360397dffac8aa054e50cf5e5ec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5926684881d95d9e772a869cb31d6a6b27df360397dffac8aa054e50cf5e5ec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5926684881d95d9e772a869cb31d6a6b27df360397dffac8aa054e50cf5e5ec1", kill_on_drop: false }`
[INFO] [stdout] 5926684881d95d9e772a869cb31d6a6b27df360397dffac8aa054e50cf5e5ec1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+b32fc44666c052e7cf07ab471bfb6f9ec571902f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7be2e42681d7f23f668a757c539aba26017d543f278d1eeccbd5a73c6a7fc9b
[INFO] running `Command { std: "docker" "start" "-a" "f7be2e42681d7f23f668a757c539aba26017d543f278d1eeccbd5a73c6a7fc9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking my_first_rust_app v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/common_programming_concepts/variables_and_mutability.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut x = 5;
[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: `x`
[INFO] [stdout]   --> src/common_programming_concepts/variables_and_mutability.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let x = 5;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `newVector`
[INFO] [stdout]   --> src/common_collections.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let newVector: Vec<i32> = Vec::new();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_newVector`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `initialisedVector`
[INFO] [stdout]   --> src/common_collections.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let initialisedVector = vec![1, 2, 3];
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_initialisedVector`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_concepts` is never used
[INFO] [stdout]   --> src/main.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn some_concepts() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `loops` is never used
[INFO] [stdout]   --> src/main.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn loops() {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `guessing_game` is never used
[INFO] [stdout]   --> src/main.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn guessing_game() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `play` is never used
[INFO] [stdout]  --> src/guessing_game.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn play() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `welcome_message_builder` is never used
[INFO] [stdout]   --> src/guessing_game.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn welcome_message_builder(input: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testing_loops` is never used
[INFO] [stdout]  --> src/loops.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn testing_loops() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `for_loop` is never used
[INFO] [stdout]  --> src/loops.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn for_loop (arr: &[i32]) {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `while_loop` is never used
[INFO] [stdout]   --> src/loops.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn while_loop() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `standard_loop` is never used
[INFO] [stdout]   --> src/loops.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn standard_loop() { 
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_POINTS` is never used
[INFO] [stdout]  --> src/common_programming_concepts/variables_and_mutability.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const MAX_POINTS: u32 = 100_000; //Number can be split up using _ for readability
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/common_programming_concepts/variables_and_mutability.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `normal_mut` is never used
[INFO] [stdout]  --> src/common_programming_concepts/variables_and_mutability.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn normal_mut() -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shadowing` is never used
[INFO] [stdout]   --> src/common_programming_concepts/variables_and_mutability.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn shadowing() -> i32{
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/common_collections.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vectors` is never used
[INFO] [stdout]  --> src/common_collections.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn vectors() {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `updating_a_vector` is never used
[INFO] [stdout]   --> src/common_collections.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn updating_a_vector() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `getting_elements` is never used
[INFO] [stdout]   --> src/common_collections.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn getting_elements() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `altering_elements` is never used
[INFO] [stdout]   --> src/common_collections.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn altering_elements() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `VTypes` is never used
[INFO] [stdout]   --> src/common_collections.rs:47:6
[INFO] [stdout]    |
[INFO] [stdout] 47 | enum VTypes {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vector_of_different_types` is never used
[INFO] [stdout]   --> src/common_collections.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn vector_of_different_types() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> src/structs_with_methods.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Rectangle {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `area` is never used
[INFO] [stdout]  --> src/structs_with_methods.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl Rectangle {
[INFO] [stdout]   | -------------- method in this implementation
[INFO] [stdout] 7 |     fn area(&self) -> u32 {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_rectangle_area` is never used
[INFO] [stdout]   --> src/structs_with_methods.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn get_rectangle_area () {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newVector` should have a snake case name
[INFO] [stdout]   --> src/common_collections.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let newVector: Vec<i32> = Vec::new();
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to snake case: `new_vector`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `initialisedVector` should have a snake case name
[INFO] [stdout]   --> src/common_collections.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let initialisedVector = vec![1, 2, 3];
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `initialised_vector`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newMutableVector` should have a snake case name
[INFO] [stdout]   --> src/common_collections.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut newMutableVector = Vec::new();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `new_mutable_vector`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/common_programming_concepts/variables_and_mutability.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut x = 5;
[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: `x`
[INFO] [stdout]   --> src/common_programming_concepts/variables_and_mutability.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let x = 5;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `newVector`
[INFO] [stdout]   --> src/common_collections.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let newVector: Vec<i32> = Vec::new();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_newVector`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `initialisedVector`
[INFO] [stdout]   --> src/common_collections.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let initialisedVector = vec![1, 2, 3];
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_initialisedVector`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_concepts` is never used
[INFO] [stdout]   --> src/main.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn some_concepts() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `loops` is never used
[INFO] [stdout]   --> src/main.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn loops() {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `guessing_game` is never used
[INFO] [stdout]   --> src/main.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn guessing_game() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `play` is never used
[INFO] [stdout]  --> src/guessing_game.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn play() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `welcome_message_builder` is never used
[INFO] [stdout]   --> src/guessing_game.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn welcome_message_builder(input: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testing_loops` is never used
[INFO] [stdout]  --> src/loops.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn testing_loops() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `for_loop` is never used
[INFO] [stdout]  --> src/loops.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn for_loop (arr: &[i32]) {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `while_loop` is never used
[INFO] [stdout]   --> src/loops.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn while_loop() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `standard_loop` is never used
[INFO] [stdout]   --> src/loops.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn standard_loop() { 
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_POINTS` is never used
[INFO] [stdout]  --> src/common_programming_concepts/variables_and_mutability.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const MAX_POINTS: u32 = 100_000; //Number can be split up using _ for readability
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/common_programming_concepts/variables_and_mutability.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `normal_mut` is never used
[INFO] [stdout]  --> src/common_programming_concepts/variables_and_mutability.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn normal_mut() -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shadowing` is never used
[INFO] [stdout]   --> src/common_programming_concepts/variables_and_mutability.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn shadowing() -> i32{
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/common_collections.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vectors` is never used
[INFO] [stdout]  --> src/common_collections.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn vectors() {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `updating_a_vector` is never used
[INFO] [stdout]   --> src/common_collections.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn updating_a_vector() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `getting_elements` is never used
[INFO] [stdout]   --> src/common_collections.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn getting_elements() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `altering_elements` is never used
[INFO] [stdout]   --> src/common_collections.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn altering_elements() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `VTypes` is never used
[INFO] [stdout]   --> src/common_collections.rs:47:6
[INFO] [stdout]    |
[INFO] [stdout] 47 | enum VTypes {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vector_of_different_types` is never used
[INFO] [stdout]   --> src/common_collections.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn vector_of_different_types() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> src/structs_with_methods.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Rectangle {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `area` is never used
[INFO] [stdout]  --> src/structs_with_methods.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl Rectangle {
[INFO] [stdout]   | -------------- method in this implementation
[INFO] [stdout] 7 |     fn area(&self) -> u32 {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_rectangle_area` is never used
[INFO] [stdout]   --> src/structs_with_methods.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn get_rectangle_area () {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newVector` should have a snake case name
[INFO] [stdout]   --> src/common_collections.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let newVector: Vec<i32> = Vec::new();
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to snake case: `new_vector`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `initialisedVector` should have a snake case name
[INFO] [stdout]   --> src/common_collections.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let initialisedVector = vec![1, 2, 3];
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `initialised_vector`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newMutableVector` should have a snake case name
[INFO] [stdout]   --> src/common_collections.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut newMutableVector = Vec::new();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `new_mutable_vector`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.78s
[INFO] running `Command { std: "docker" "inspect" "f7be2e42681d7f23f668a757c539aba26017d543f278d1eeccbd5a73c6a7fc9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7be2e42681d7f23f668a757c539aba26017d543f278d1eeccbd5a73c6a7fc9b", kill_on_drop: false }`
[INFO] [stdout] f7be2e42681d7f23f668a757c539aba26017d543f278d1eeccbd5a73c6a7fc9b