[INFO] cloning repository https://github.com/shruthiakkal/rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shruthiakkal/rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshruthiakkal%2Frust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshruthiakkal%2Frust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1c9badee316ca986c7a64e894ee1bdaf22becd54
[INFO] testing shruthiakkal/rust against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshruthiakkal%2Frust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/shruthiakkal/rust
[INFO] finished tweaking git repo https://github.com/shruthiakkal/rust
[INFO] tweaked toml for git repo https://github.com/shruthiakkal/rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/shruthiakkal/rust on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/shruthiakkal/rust 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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1aeaead28173b1817a73e80062ca08443868c81eb1ed33cd4c5529a3e292a4dc
[INFO] running `Command { std: "docker" "start" "-a" "1aeaead28173b1817a73e80062ca08443868c81eb1ed33cd4c5529a3e292a4dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1aeaead28173b1817a73e80062ca08443868c81eb1ed33cd4c5529a3e292a4dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1aeaead28173b1817a73e80062ca08443868c81eb1ed33cd4c5529a3e292a4dc", kill_on_drop: false }`
[INFO] [stdout] 1aeaead28173b1817a73e80062ca08443868c81eb1ed33cd4c5529a3e292a4dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a680f429b17748678afc969f502e434aee6cab1bc97e2accca943ca225fef56
[INFO] running `Command { std: "docker" "start" "-a" "6a680f429b17748678afc969f502e434aee6cab1bc97e2accca943ca225fef56", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/main.rs:242:17
[INFO] [stdout]     |
[INFO] [stdout] 242 |     let expt1 = (i32::MAX as i64);
[INFO] [stdout]     |                 ^               ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 242 -     let expt1 = (i32::MAX as i64);
[INFO] [stdout] 242 +     let expt1 = i32::MAX as i64 ;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let mut new2: u8 = 20;
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |     let mut arr2: [i32; 5] = [10, 20, 3, 500, 67];
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `true_or_false`
[INFO] [stdout]    --> src/main.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let true_or_false: bool = true;
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_true_or_false`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `false_or_true`
[INFO] [stdout]    --> src/main.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |     let false_or_true: bool = false;
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_false_or_true`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `character`
[INFO] [stdout]    --> src/main.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let character: char = '9'; //single character --- requires single quote
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `character`
[INFO] [stdout]    --> src/main.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |     let character: char = ';'; //single character
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr2`
[INFO] [stdout]    --> src/main.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |     let mut arr2: [i32; 5] = [10, 20, 3, 500, 67];
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arr2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v1`
[INFO] [stdout]    --> src/main.rs:190:9
[INFO] [stdout]     |
[INFO] [stdout] 190 |     let v1: u8 = 200; // 0 to 255
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_v1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v2`
[INFO] [stdout]    --> src/main.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 |     let v2: i8 = 10; //-128 to 127
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_v2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_numbers` is never used
[INFO] [stdout]    --> src/main.rs:341:4
[INFO] [stdout]     |
[INFO] [stdout] 341 | fn add_numbers(a: i32, b: i32) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "6a680f429b17748678afc969f502e434aee6cab1bc97e2accca943ca225fef56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a680f429b17748678afc969f502e434aee6cab1bc97e2accca943ca225fef56", kill_on_drop: false }`
[INFO] [stdout] 6a680f429b17748678afc969f502e434aee6cab1bc97e2accca943ca225fef56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bd8edc9688e6371578fe8ecff4bee1bd215f40c4bf38613cc6ee777498b609a
[INFO] running `Command { std: "docker" "start" "-a" "0bd8edc9688e6371578fe8ecff4bee1bd215f40c4bf38613cc6ee777498b609a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/main.rs:242:17
[INFO] [stdout]     |
[INFO] [stdout] 242 |     let expt1 = (i32::MAX as i64);
[INFO] [stdout]     |                 ^               ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 242 -     let expt1 = (i32::MAX as i64);
[INFO] [stdout] 242 +     let expt1 = i32::MAX as i64 ;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let mut new2: u8 = 20;
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |     let mut arr2: [i32; 5] = [10, 20, 3, 500, 67];
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `true_or_false`
[INFO] [stdout]    --> src/main.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let true_or_false: bool = true;
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_true_or_false`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `false_or_true`
[INFO] [stdout]    --> src/main.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |     let false_or_true: bool = false;
[INFO] [stdout]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_false_or_true`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `character`
[INFO] [stdout]    --> src/main.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |     let character: char = '9'; //single character --- requires single quote
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `character`
[INFO] [stdout]    --> src/main.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |     let character: char = ';'; //single character
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr2`
[INFO] [stdout]    --> src/main.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |     let mut arr2: [i32; 5] = [10, 20, 3, 500, 67];
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arr2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v1`
[INFO] [stdout]    --> src/main.rs:190:9
[INFO] [stdout]     |
[INFO] [stdout] 190 |     let v1: u8 = 200; // 0 to 255
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_v1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v2`
[INFO] [stdout]    --> src/main.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 |     let v2: i8 = 10; //-128 to 127
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_v2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_numbers` is never used
[INFO] [stdout]    --> src/main.rs:341:4
[INFO] [stdout]     |
[INFO] [stdout] 341 | fn add_numbers(a: i32, b: i32) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "0bd8edc9688e6371578fe8ecff4bee1bd215f40c4bf38613cc6ee777498b609a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bd8edc9688e6371578fe8ecff4bee1bd215f40c4bf38613cc6ee777498b609a", kill_on_drop: false }`
[INFO] [stdout] 0bd8edc9688e6371578fe8ecff4bee1bd215f40c4bf38613cc6ee777498b609a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 586971dedc76823598035930467d77fb2191ccef52c3e40c36179c63203daf5a
[INFO] running `Command { std: "docker" "start" "-a" "586971dedc76823598035930467d77fb2191ccef52c3e40c36179c63203daf5a", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]    --> src/main.rs:242:17
[INFO] [stderr]     |
[INFO] [stderr] 242 |     let expt1 = (i32::MAX as i64);
[INFO] [stderr]     |                 ^               ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 242 -     let expt1 = (i32::MAX as i64);
[INFO] [stderr] 242 +     let expt1 = i32::MAX as i64 ;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:96:9
[INFO] [stderr]    |
[INFO] [stderr] 96 |     let mut new2: u8 = 20;
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:148:9
[INFO] [stderr]     |
[INFO] [stderr] 148 |     let mut arr2: [i32; 5] = [10, 20, 3, 500, 67];
[INFO] [stderr]     |         ----^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `true_or_false`
[INFO] [stderr]    --> src/main.rs:105:9
[INFO] [stderr]     |
[INFO] [stderr] 105 |     let true_or_false: bool = true;
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_true_or_false`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `false_or_true`
[INFO] [stderr]    --> src/main.rs:106:9
[INFO] [stderr]     |
[INFO] [stderr] 106 |     let false_or_true: bool = false;
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_false_or_true`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `character`
[INFO] [stderr]    --> src/main.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |     let character: char = '9'; //single character --- requires single quote
[INFO] [stderr]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `character`
[INFO] [stderr]    --> src/main.rs:110:9
[INFO] [stderr]     |
[INFO] [stderr] 110 |     let character: char = ';'; //single character
[INFO] [stderr]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arr2`
[INFO] [stderr]    --> src/main.rs:148:9
[INFO] [stderr]     |
[INFO] [stderr] 148 |     let mut arr2: [i32; 5] = [10, 20, 3, 500, 67];
[INFO] [stderr]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arr2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v1`
[INFO] [stderr]    --> src/main.rs:190:9
[INFO] [stderr]     |
[INFO] [stderr] 190 |     let v1: u8 = 200; // 0 to 255
[INFO] [stderr]     |         ^^ help: if this is intentional, prefix it with an underscore: `_v1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v2`
[INFO] [stderr]    --> src/main.rs:191:9
[INFO] [stderr]     |
[INFO] [stderr] 191 |     let v2: i8 = 10; //-128 to 127
[INFO] [stderr]     |         ^^ help: if this is intentional, prefix it with an underscore: `_v2`
[INFO] [stderr] 
[INFO] [stderr] warning: function `add_numbers` is never used
[INFO] [stderr]    --> src/main.rs:341:4
[INFO] [stderr]     |
[INFO] [stderr] 341 | fn add_numbers(a: i32, b: i32) -> i32 {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust` (bin "rust" test) generated 11 warnings (run `cargo fix --bin "rust" -p rust --tests` to apply 10 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust-2f725dfbd2a0a3b5)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "586971dedc76823598035930467d77fb2191ccef52c3e40c36179c63203daf5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "586971dedc76823598035930467d77fb2191ccef52c3e40c36179c63203daf5a", kill_on_drop: false }`
[INFO] [stdout] 586971dedc76823598035930467d77fb2191ccef52c3e40c36179c63203daf5a
