[INFO] cloning repository https://github.com/thelooter/RustExamples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thelooter/RustExamples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthelooter%2FRustExamples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthelooter%2FRustExamples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f7cab08f6c5c01e27940412a7886a39bdeef8a2f
[INFO] testing thelooter/RustExamples against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthelooter%2FRustExamples" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thelooter/RustExamples on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thelooter/RustExamples
[INFO] finished tweaking git repo https://github.com/thelooter/RustExamples
[INFO] tweaked toml for git repo https://github.com/thelooter/RustExamples written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/thelooter/RustExamples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 371847f5b4f20231401c68405c3ca794ec0898047f0e98ea19ab2426c4ffac10
[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" "371847f5b4f20231401c68405c3ca794ec0898047f0e98ea19ab2426c4ffac10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "371847f5b4f20231401c68405c3ca794ec0898047f0e98ea19ab2426c4ffac10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "371847f5b4f20231401c68405c3ca794ec0898047f0e98ea19ab2426c4ffac10", kill_on_drop: false }`
[INFO] [stdout] 371847f5b4f20231401c68405c3ca794ec0898047f0e98ea19ab2426c4ffac10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e364679c5011e763eb185b2cd3b77148376971aafdb77934641ce77bded9c00
[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" "1e364679c5011e763eb185b2cd3b77148376971aafdb77934641ce77bded9c00", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling RustExamples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/mutability.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut y = 5;
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/data_types.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let x: i128 = 10;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/data_types.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let y: f64 = 3.135;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/data_types.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let z: bool = true;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/data_types.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let a: char = 'a';
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/data_types.rs:47:10
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let (x, y, z) = tup;
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/data_types.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let (x, y, z) = tup;
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/data_types.rs:47:16
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let (x, y, z) = tup;
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/data_types.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let x = tup.0;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/data_types.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let y = tup.1;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/data_types.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let z = tup.2;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr2`
[INFO] [stdout]   --> src/data_types.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let arr2 = [1, 2, 3, 4, 5];
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_arr2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr3`
[INFO] [stdout]   --> src/data_types.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let arr3 = [3; 5];
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_arr3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `first`
[INFO] [stdout]   --> src/data_types.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let first = arr[0];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_first`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `second`
[INFO] [stdout]   --> src/data_types.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let second = arr[1];
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_second`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `third`
[INFO] [stdout]   --> src/data_types.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let third = arr[2];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_third`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/control_flow.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let number = if condition {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/mutability.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut y = 5;
[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: function is never used: `functions`
[INFO] [stdout]  --> src/functions.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(crate) fn functions() {
[INFO] [stdout]   |               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `function_with_parameters`
[INFO] [stdout]  --> src/functions.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn function_with_parameters(x: i32, y: i32) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sum`
[INFO] [stdout]   --> src/functions.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn sum(x: i32, y: i32) -> i32 {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sum_implicit`
[INFO] [stdout]   --> src/functions.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn sum_implicit(x: i32, y: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_sum`
[INFO] [stdout]   --> src/functions.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn print_sum(x: i32, y: i32) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `control_flow`
[INFO] [stdout]  --> src/control_flow.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(crate) fn control_flow() {
[INFO] [stdout]   |               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `loops`
[INFO] [stdout]  --> src/loops.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(crate) fn loops() {
[INFO] [stdout]   |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `RustExamples` 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: `rust_examples`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `z` should have an upper case name
[INFO] [stdout]   --> src/mutability.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 |     const z: i32 = 5;
[INFO] [stdout]    |           ^ help: convert the identifier to upper case (notice the capitalization): `Z`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.00s
[INFO] running `Command { std: "docker" "inspect" "1e364679c5011e763eb185b2cd3b77148376971aafdb77934641ce77bded9c00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e364679c5011e763eb185b2cd3b77148376971aafdb77934641ce77bded9c00", kill_on_drop: false }`
[INFO] [stdout] 1e364679c5011e763eb185b2cd3b77148376971aafdb77934641ce77bded9c00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 81c343138fe13cfe3a1eb8cd31341a8bae94de468efbd9422b1040a653c786c2
[INFO] running `Command { std: "docker" "start" "-a" "81c343138fe13cfe3a1eb8cd31341a8bae94de468efbd9422b1040a653c786c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling RustExamples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/mutability.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut y = 5;
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/data_types.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let x: i128 = 10;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/data_types.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let y: f64 = 3.135;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/data_types.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let z: bool = true;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/data_types.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let a: char = 'a';
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/data_types.rs:47:10
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let (x, y, z) = tup;
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/data_types.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let (x, y, z) = tup;
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/data_types.rs:47:16
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let (x, y, z) = tup;
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/data_types.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let x = tup.0;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/data_types.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let y = tup.1;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/data_types.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let z = tup.2;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr2`
[INFO] [stdout]   --> src/data_types.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let arr2 = [1, 2, 3, 4, 5];
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_arr2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr3`
[INFO] [stdout]   --> src/data_types.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let arr3 = [3; 5];
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_arr3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `first`
[INFO] [stdout]   --> src/data_types.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let first = arr[0];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_first`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `second`
[INFO] [stdout]   --> src/data_types.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let second = arr[1];
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_second`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `third`
[INFO] [stdout]   --> src/data_types.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let third = arr[2];
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_third`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/control_flow.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let number = if condition {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/mutability.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut y = 5;
[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: function is never used: `functions`
[INFO] [stdout]  --> src/functions.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(crate) fn functions() {
[INFO] [stdout]   |               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `function_with_parameters`
[INFO] [stdout]  --> src/functions.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn function_with_parameters(x: i32, y: i32) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sum`
[INFO] [stdout]   --> src/functions.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn sum(x: i32, y: i32) -> i32 {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sum_implicit`
[INFO] [stdout]   --> src/functions.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn sum_implicit(x: i32, y: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_sum`
[INFO] [stdout]   --> src/functions.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn print_sum(x: i32, y: i32) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `control_flow`
[INFO] [stdout]  --> src/control_flow.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(crate) fn control_flow() {
[INFO] [stdout]   |               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `loops`
[INFO] [stdout]  --> src/loops.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(crate) fn loops() {
[INFO] [stdout]   |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `RustExamples` 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: `rust_examples`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `z` should have an upper case name
[INFO] [stdout]   --> src/mutability.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 |     const z: i32 = 5;
[INFO] [stdout]    |           ^ help: convert the identifier to upper case (notice the capitalization): `Z`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "81c343138fe13cfe3a1eb8cd31341a8bae94de468efbd9422b1040a653c786c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81c343138fe13cfe3a1eb8cd31341a8bae94de468efbd9422b1040a653c786c2", kill_on_drop: false }`
[INFO] [stdout] 81c343138fe13cfe3a1eb8cd31341a8bae94de468efbd9422b1040a653c786c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 42e2a51792ca7b2a7d80e508f2ed3fe1e1fa51534f8657f9c58cefb74922f28c
[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" "42e2a51792ca7b2a7d80e508f2ed3fe1e1fa51534f8657f9c58cefb74922f28c", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/mutability.rs:10:13
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 10 |     let mut y = 5;
[INFO] [stdout] 
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/data_types.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let x: i128 = 10;
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/data_types.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let y: f64 = 3.135;
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `z`
[INFO] [stderr]   --> src/data_types.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let z: bool = true;
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/data_types.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let a: char = 'a';
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/data_types.rs:47:10
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let (x, y, z) = tup;
[INFO] [stderr]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/data_types.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let (x, y, z) = tup;
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `z`
[INFO] [stderr]   --> src/data_types.rs:47:16
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let (x, y, z) = tup;
[INFO] [stderr]    |                ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/data_types.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let x = tup.0;
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/data_types.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let y = tup.1;
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `z`
[INFO] [stderr]   --> src/data_types.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let z = tup.2;
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arr2`
[INFO] [stderr]   --> src/data_types.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let arr2 = [1, 2, 3, 4, 5];
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_arr2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arr3`
[INFO] [stderr]   --> src/data_types.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |     let arr3 = [3; 5];
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_arr3`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `first`
[INFO] [stderr]   --> src/data_types.rs:67:9
[INFO] [stderr]    |
[INFO] [stderr] 67 |     let first = arr[0];
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_first`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `second`
[INFO] [stderr]   --> src/data_types.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 |     let second = arr[1];
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_second`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `third`
[INFO] [stderr]   --> src/data_types.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let third = arr[2];
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_third`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `number`
[INFO] [stderr]   --> src/control_flow.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let number = if condition {
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/mutability.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut y = 5;
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `functions`
[INFO] [stderr]  --> src/functions.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub(crate) fn functions() {
[INFO] [stderr]   |               ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `function_with_parameters`
[INFO] [stderr]  --> src/functions.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn function_with_parameters(x: i32, y: i32) {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum`
[INFO] [stderr]   --> src/functions.rs:20:4
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn sum(x: i32, y: i32) -> i32 {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum_implicit`
[INFO] [stderr]   --> src/functions.rs:25:4
[INFO] [stderr]    |
[INFO] [stderr] 25 | fn sum_implicit(x: i32, y: i32) -> i32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_sum`
[INFO] [stderr]   --> src/functions.rs:30:4
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn print_sum(x: i32, y: i32) {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `control_flow`
[INFO] [stderr]  --> src/control_flow.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub(crate) fn control_flow() {
[INFO] [stderr]   |               ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `loops`
[INFO] [stderr]  --> src/loops.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub(crate) fn loops() {
[INFO] [stderr]   |               ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `RustExamples` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `rust_examples`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `z` should have an upper case name
[INFO] [stderr]   --> src/mutability.rs:15:11
[INFO] [stderr]    |
[INFO] [stderr] 15 |     const z: i32 = 5;
[INFO] [stderr]    |           ^ help: convert the identifier to upper case (notice the capitalization): `Z`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `RustExamples` (bin "RustExamples" test) generated 27 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/RustExamples-af0ab7639300d4b9)
[INFO] running `Command { std: "docker" "inspect" "42e2a51792ca7b2a7d80e508f2ed3fe1e1fa51534f8657f9c58cefb74922f28c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42e2a51792ca7b2a7d80e508f2ed3fe1e1fa51534f8657f9c58cefb74922f28c", kill_on_drop: false }`
[INFO] [stdout] 42e2a51792ca7b2a7d80e508f2ed3fe1e1fa51534f8657f9c58cefb74922f28c