[INFO] cloning repository https://github.com/ShyanJMC/Rust-Source-Code-Tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ShyanJMC/Rust-Source-Code-Tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShyanJMC%2FRust-Source-Code-Tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShyanJMC%2FRust-Source-Code-Tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1014abe2e5d499923164cd1b35be1e17f94e4118
[INFO] checking ShyanJMC/Rust-Source-Code-Tutorial against master#cfbc6d4cf1acbac5c025acf8ed68929caa551df3 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShyanJMC%2FRust-Source-Code-Tutorial" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ShyanJMC/Rust-Source-Code-Tutorial on toolchain cfbc6d4cf1acbac5c025acf8ed68929caa551df3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ShyanJMC/Rust-Source-Code-Tutorial
[INFO] finished tweaking git repo https://github.com/ShyanJMC/Rust-Source-Code-Tutorial
[INFO] tweaked toml for git repo https://github.com/ShyanJMC/Rust-Source-Code-Tutorial written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/ShyanJMC/Rust-Source-Code-Tutorial already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36604b06a196b6fef2fdb74473a1c649eb38639850f86b0004ebcef8cb59406d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "36604b06a196b6fef2fdb74473a1c649eb38639850f86b0004ebcef8cb59406d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36604b06a196b6fef2fdb74473a1c649eb38639850f86b0004ebcef8cb59406d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36604b06a196b6fef2fdb74473a1c649eb38639850f86b0004ebcef8cb59406d", kill_on_drop: false }`
[INFO] [stdout] 36604b06a196b6fef2fdb74473a1c649eb38639850f86b0004ebcef8cb59406d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f1f08fb753cd5a38ec467fae48d3fbf344d93753116d24e55ede70aee3206dc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6f1f08fb753cd5a38ec467fae48d3fbf344d93753116d24e55ede70aee3206dc", kill_on_drop: false }`
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking SourceCodeTutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:713:12
[INFO] [stdout]     |
[INFO] [stdout] 713 |         if (_counter >= 10) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:832:8
[INFO] [stdout]     |
[INFO] [stdout] 832 |     if (s == "This is a value to by passed by reference." ){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `house_measurements` should have an upper camel case name
[INFO] [stdout]     --> src/main.rs:1367:14
[INFO] [stdout]      |
[INFO] [stdout] 1367 |         pub struct house_measurements {
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `HouseMeasurements`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::*`
[INFO] [stdout]     --> src/main.rs:1459:7
[INFO] [stdout]      |
[INFO] [stdout] 1459 |         use std::collections::*;
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:713:12
[INFO] [stdout]     |
[INFO] [stdout] 713 |         if (_counter >= 10) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:832:8
[INFO] [stdout]     |
[INFO] [stdout] 832 |     if (s == "This is a value to by passed by reference." ){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `house_measurements` should have an upper camel case name
[INFO] [stdout]     --> src/main.rs:1367:14
[INFO] [stdout]      |
[INFO] [stdout] 1367 |         pub struct house_measurements {
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `HouseMeasurements`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::*`
[INFO] [stdout]     --> src/main.rs:1459:7
[INFO] [stdout]      |
[INFO] [stdout] 1459 |         use std::collections::*;
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/main.rs:1236:9
[INFO] [stdout]      |
[INFO] [stdout] 1234 |         _varCompare2 => println!("Match!."),
[INFO] [stdout]      |         ------------ matches any value
[INFO] [stdout] 1235 |         // Just remember put " _ " at the end of match, because if you put before another arm will not check it.
[INFO] [stdout] 1236 |         _ => println!("Don't match with _varCompare."),
[INFO] [stdout]      |         ^ unreachable pattern
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vvariable2`
[INFO] [stdout]     --> src/main.rs:1500:9
[INFO] [stdout]      |
[INFO] [stdout] 1500 |     let mut vvariable2 = vec![1,2,3];
[INFO] [stdout]      |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vvariable2`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `firstvalue`
[INFO] [stdout]     --> src/main.rs:1531:9
[INFO] [stdout]      |
[INFO] [stdout] 1531 |     let firstvalue = vvariable.get(0); // Remember. The index start from zero.
[INFO] [stdout]      |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_firstvalue`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> src/main.rs:1236:9
[INFO] [stdout]      |
[INFO] [stdout] 1234 |         _varCompare2 => println!("Match!."),
[INFO] [stdout]      |         ------------ matches any value
[INFO] [stdout] 1235 |         // Just remember put " _ " at the end of match, because if you put before another arm will not check it.
[INFO] [stdout] 1236 |         _ => println!("Don't match with _varCompare."),
[INFO] [stdout]      |         ^ unreachable pattern
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vvariable2`
[INFO] [stdout]     --> src/main.rs:1500:9
[INFO] [stdout]      |
[INFO] [stdout] 1500 |     let mut vvariable2 = vec![1,2,3];
[INFO] [stdout]      |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vvariable2`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `firstvalue`
[INFO] [stdout]     --> src/main.rs:1531:9
[INFO] [stdout]      |
[INFO] [stdout] 1531 |     let firstvalue = vvariable.get(0); // Remember. The index start from zero.
[INFO] [stdout]      |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_firstvalue`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/main.rs:1500:9
[INFO] [stdout]      |
[INFO] [stdout] 1500 |     let mut vvariable2 = vec![1,2,3];
[INFO] [stdout]      |         ----^^^^^^^^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `age`
[INFO] [stdout]    --> src/main.rs:930:9
[INFO] [stdout]     |
[INFO] [stdout] 930 |         age: String,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `UnitLikeStruct`
[INFO] [stdout]     --> src/main.rs:1000:12
[INFO] [stdout]      |
[INFO] [stdout] 1000 |     struct UnitLikeStruct();
[INFO] [stdout]      |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `last_time`
[INFO] [stdout]     --> src/main.rs:1031:9
[INFO] [stdout]      |
[INFO] [stdout] 1031 |         last_time: u64,
[INFO] [stdout]      |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vtype`
[INFO] [stdout]     --> src/main.rs:1083:9
[INFO] [stdout]      |
[INFO] [stdout] 1083 |         vtype: IpAddress,
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `address`
[INFO] [stdout]     --> src/main.rs:1085:9
[INFO] [stdout]      |
[INFO] [stdout] 1085 |         address: String,
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `first_name`
[INFO] [stdout]     --> src/main.rs:1148:9
[INFO] [stdout]      |
[INFO] [stdout] 1148 |         first_name: String,
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `second_name`
[INFO] [stdout]     --> src/main.rs:1149:9
[INFO] [stdout]      |
[INFO] [stdout] 1149 |         second_name: Option<String>, // can be any type of data.
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `last_name`
[INFO] [stdout]     --> src/main.rs:1150:9
[INFO] [stdout]      |
[INFO] [stdout] 1150 |         last_name: String,
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `outside_funct`
[INFO] [stdout]     --> src/main.rs:1356:5
[INFO] [stdout]      |
[INFO] [stdout] 1356 |     fn outside_funct() {}
[INFO] [stdout]      |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `function`
[INFO] [stdout]     --> src/main.rs:1358:7
[INFO] [stdout]      |
[INFO] [stdout] 1358 |             fn function() {
[INFO] [stdout]      |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `house_measurements`
[INFO] [stdout]     --> src/main.rs:1367:14
[INFO] [stdout]      |
[INFO] [stdout] 1367 |         pub struct house_measurements {
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `house_measurements_fn`
[INFO] [stdout]     --> src/main.rs:1375:11
[INFO] [stdout]      |
[INFO] [stdout] 1375 |             pub fn house_measurements_fn(wid: u16, lar: u16) -> house_measurements {
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `separated_function1`
[INFO] [stdout]  --> src/lib_source_code.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub fn separated_function1() {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `external1`
[INFO] [stdout]     --> src/main.rs:1472:6
[INFO] [stdout]      |
[INFO] [stdout] 1472 |         fn external1(){
[INFO] [stdout]      |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `SourceCodeTutorial` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `source_code_tutorial`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_varExample` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1215:9
[INFO] [stdout]      |
[INFO] [stdout] 1215 |     let _varExample: String = String::from("Hi");
[INFO] [stdout]      |         ^^^^^^^^^^^ help: convert the identifier to snake case: `_var_example`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_varCompare` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1216:9
[INFO] [stdout]      |
[INFO] [stdout] 1216 |     let _varCompare: String = String::from("Value2");
[INFO] [stdout]      |         ^^^^^^^^^^^ help: convert the identifier to snake case: `_var_compare`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_varCompare` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1218:9
[INFO] [stdout]      |
[INFO] [stdout] 1218 |         _varCompare => println!("Match!."),
[INFO] [stdout]      |         ^^^^^^^^^^^ help: convert the identifier to snake case: `_var_compare`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_varExample2` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1221:9
[INFO] [stdout]      |
[INFO] [stdout] 1221 |     let _varExample2: Option<u8> = Some(10);
[INFO] [stdout]      |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `_var_example2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_varExample2` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1231:9
[INFO] [stdout]      |
[INFO] [stdout] 1231 |     let _varExample2: String = String::from("Hi");
[INFO] [stdout]      |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `_var_example2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_varCompare2` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1232:9
[INFO] [stdout]      |
[INFO] [stdout] 1232 |     let _varCompare2: String = String::from("Value2");
[INFO] [stdout]      |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `_var_compare2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_varCompare2` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1234:9
[INFO] [stdout]      |
[INFO] [stdout] 1234 |         _varCompare2 => println!("Match!."),
[INFO] [stdout]      |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `_var_compare2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: path statement with no effect
[INFO] [stdout]     --> src/main.rs:1430:4
[INFO] [stdout]      |
[INFO] [stdout] 1430 |             the_same_tobe_or_not_tobe::something;
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(path_statements)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 31 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/main.rs:1500:9
[INFO] [stdout]      |
[INFO] [stdout] 1500 |     let mut vvariable2 = vec![1,2,3];
[INFO] [stdout]      |         ----^^^^^^^^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `age`
[INFO] [stdout]    --> src/main.rs:930:9
[INFO] [stdout]     |
[INFO] [stdout] 930 |         age: String,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `UnitLikeStruct`
[INFO] [stdout]     --> src/main.rs:1000:12
[INFO] [stdout]      |
[INFO] [stdout] 1000 |     struct UnitLikeStruct();
[INFO] [stdout]      |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `last_time`
[INFO] [stdout]     --> src/main.rs:1031:9
[INFO] [stdout]      |
[INFO] [stdout] 1031 |         last_time: u64,
[INFO] [stdout]      |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vtype`
[INFO] [stdout]     --> src/main.rs:1083:9
[INFO] [stdout]      |
[INFO] [stdout] 1083 |         vtype: IpAddress,
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `address`
[INFO] [stdout]     --> src/main.rs:1085:9
[INFO] [stdout]      |
[INFO] [stdout] 1085 |         address: String,
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `first_name`
[INFO] [stdout]     --> src/main.rs:1148:9
[INFO] [stdout]      |
[INFO] [stdout] 1148 |         first_name: String,
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `second_name`
[INFO] [stdout]     --> src/main.rs:1149:9
[INFO] [stdout]      |
[INFO] [stdout] 1149 |         second_name: Option<String>, // can be any type of data.
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `last_name`
[INFO] [stdout]     --> src/main.rs:1150:9
[INFO] [stdout]      |
[INFO] [stdout] 1150 |         last_name: String,
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `outside_funct`
[INFO] [stdout]     --> src/main.rs:1356:5
[INFO] [stdout]      |
[INFO] [stdout] 1356 |     fn outside_funct() {}
[INFO] [stdout]      |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `function`
[INFO] [stdout]     --> src/main.rs:1358:7
[INFO] [stdout]      |
[INFO] [stdout] 1358 |             fn function() {
[INFO] [stdout]      |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `house_measurements`
[INFO] [stdout]     --> src/main.rs:1367:14
[INFO] [stdout]      |
[INFO] [stdout] 1367 |         pub struct house_measurements {
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `house_measurements_fn`
[INFO] [stdout]     --> src/main.rs:1375:11
[INFO] [stdout]      |
[INFO] [stdout] 1375 |             pub fn house_measurements_fn(wid: u16, lar: u16) -> house_measurements {
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `separated_function1`
[INFO] [stdout]  --> src/lib_source_code.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub fn separated_function1() {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `external1`
[INFO] [stdout]     --> src/main.rs:1472:6
[INFO] [stdout]      |
[INFO] [stdout] 1472 |         fn external1(){
[INFO] [stdout]      |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `SourceCodeTutorial` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `source_code_tutorial`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_varExample` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1215:9
[INFO] [stdout]      |
[INFO] [stdout] 1215 |     let _varExample: String = String::from("Hi");
[INFO] [stdout]      |         ^^^^^^^^^^^ help: convert the identifier to snake case: `_var_example`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_varCompare` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1216:9
[INFO] [stdout]      |
[INFO] [stdout] 1216 |     let _varCompare: String = String::from("Value2");
[INFO] [stdout]      |         ^^^^^^^^^^^ help: convert the identifier to snake case: `_var_compare`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_varCompare` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1218:9
[INFO] [stdout]      |
[INFO] [stdout] 1218 |         _varCompare => println!("Match!."),
[INFO] [stdout]      |         ^^^^^^^^^^^ help: convert the identifier to snake case: `_var_compare`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_varExample2` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1221:9
[INFO] [stdout]      |
[INFO] [stdout] 1221 |     let _varExample2: Option<u8> = Some(10);
[INFO] [stdout]      |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `_var_example2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_varExample2` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1231:9
[INFO] [stdout]      |
[INFO] [stdout] 1231 |     let _varExample2: String = String::from("Hi");
[INFO] [stdout]      |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `_var_example2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_varCompare2` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1232:9
[INFO] [stdout]      |
[INFO] [stdout] 1232 |     let _varCompare2: String = String::from("Value2");
[INFO] [stdout]      |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `_var_compare2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_varCompare2` should have a snake case name
[INFO] [stdout]     --> src/main.rs:1234:9
[INFO] [stdout]      |
[INFO] [stdout] 1234 |         _varCompare2 => println!("Match!."),
[INFO] [stdout]      |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `_var_compare2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: path statement with no effect
[INFO] [stdout]     --> src/main.rs:1430:4
[INFO] [stdout]      |
[INFO] [stdout] 1430 |             the_same_tobe_or_not_tobe::something;
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(path_statements)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 31 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.83s
[INFO] running `Command { std: "docker" "inspect" "6f1f08fb753cd5a38ec467fae48d3fbf344d93753116d24e55ede70aee3206dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f1f08fb753cd5a38ec467fae48d3fbf344d93753116d24e55ede70aee3206dc", kill_on_drop: false }`
[INFO] [stdout] 6f1f08fb753cd5a38ec467fae48d3fbf344d93753116d24e55ede70aee3206dc
