[INFO] cloning repository https://github.com/nursin/Rust-setup-and-tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nursin/Rust-setup-and-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnursin%2FRust-setup-and-tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnursin%2FRust-setup-and-tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c4299d79a4f1a5f2e28d1b7d7fc216ba184e12eb
[INFO] testing nursin/Rust-setup-and-tutorial against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnursin%2FRust-setup-and-tutorial" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nursin/Rust-setup-and-tutorial on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nursin/Rust-setup-and-tutorial
[INFO] finished tweaking git repo https://github.com/nursin/Rust-setup-and-tutorial
[INFO] tweaked toml for git repo https://github.com/nursin/Rust-setup-and-tutorial written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate git repo https://github.com/nursin/Rust-setup-and-tutorial already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe89f3e4ded5e4f664a284d8f0c8b29974dad0c27eb2e7df529fcbe02d1443ce
[INFO] running `Command { std: "docker" "start" "-a" "fe89f3e4ded5e4f664a284d8f0c8b29974dad0c27eb2e7df529fcbe02d1443ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe89f3e4ded5e4f664a284d8f0c8b29974dad0c27eb2e7df529fcbe02d1443ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe89f3e4ded5e4f664a284d8f0c8b29974dad0c27eb2e7df529fcbe02d1443ce", kill_on_drop: false }`
[INFO] [stdout] fe89f3e4ded5e4f664a284d8f0c8b29974dad0c27eb2e7df529fcbe02d1443ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe0017b57ec95c3e3df8035fb2940c11bc7db81a934d6180444ee0a45eb24520
[INFO] running `Command { std: "docker" "start" "-a" "fe0017b57ec95c3e3df8035fb2940c11bc7db81a934d6180444ee0a45eb24520", kill_on_drop: false }`
[INFO] [stderr]    Compiling smawk v0.3.1
[INFO] [stderr]    Compiling smallvec v0.4.5
[INFO] [stderr]    Compiling textwrap v0.13.4
[INFO] [stderr]    Compiling ferris-says v0.2.1
[INFO] [stderr]    Compiling gamechanger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::stdin`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::stdin;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:88:7
[INFO] [stdout]    |
[INFO] [stdout] 88 |     if(age_old == 5){
[INFO] [stdout]    |       ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 88 -     if(age_old == 5){
[INFO] [stdout] 88 +     if age_old == 5 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:102:23
[INFO] [stdout]     |
[INFO] [stdout] 102 |     let can_vote = if (age_old >= 18) {true} else {false};
[INFO] [stdout]     |                       ^             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 102 -     let can_vote = if (age_old >= 18) {true} else {false};
[INFO] [stdout] 102 +     let can_vote = if age_old >= 18 {true} else {false};
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:109:11
[INFO] [stdout]     |
[INFO] [stdout] 109 |         if((x % 2) == 0){
[INFO] [stdout]     |           ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 109 -         if((x % 2) == 0){
[INFO] [stdout] 109 +         if (x % 2) == 0 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:115:11
[INFO] [stdout]     |
[INFO] [stdout] 115 |         if(x > 10){
[INFO] [stdout]     |           ^      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 115 -         if(x > 10){
[INFO] [stdout] 115 +         if x > 10 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f_name`
[INFO] [stdout]   --> src/main.rs:46:10
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let (f_name, l_name) = ("Bobby", "Keel");
[INFO] [stdout]    |          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_f_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l_name`
[INFO] [stdout]   --> src/main.rs:46:18
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let (f_name, l_name) = ("Bobby", "Keel");
[INFO] [stdout]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_l_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/main.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let count = rand_string.chars().count();
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rand_tuple`
[INFO] [stdout]    --> src/main.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let rand_tuple = ("Bobby", 40);
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rand_tuple`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prim_val2`
[INFO] [stdout]    --> src/main.rs:265:9
[INFO] [stdout]     |
[INFO] [stdout] 265 |     let prim_val2 = prim_val;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prim_val2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `quicksilver`
[INFO] [stdout]    --> src/main.rs:293:9
[INFO] [stdout]     |
[INFO] [stdout] 293 |     let quicksilver = Hero::Fast;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_quicksilver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut age: i32 = 40;
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let mut neg_4 = -4i32;
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:274:9
[INFO] [stdout]     |
[INFO] [stdout] 274 |     let mut circle1 = Circle {
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:286:9
[INFO] [stdout]     |
[INFO] [stdout] 286 |     let mut rect1 = Rectangle {
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "fe0017b57ec95c3e3df8035fb2940c11bc7db81a934d6180444ee0a45eb24520", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe0017b57ec95c3e3df8035fb2940c11bc7db81a934d6180444ee0a45eb24520", kill_on_drop: false }`
[INFO] [stdout] fe0017b57ec95c3e3df8035fb2940c11bc7db81a934d6180444ee0a45eb24520
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 490a10b71f057aac9cd5d59962ce403ccb201e6fd963f417d258f09ae6bb8ded
[INFO] running `Command { std: "docker" "start" "-a" "490a10b71f057aac9cd5d59962ce403ccb201e6fd963f417d258f09ae6bb8ded", kill_on_drop: false }`
[INFO] [stderr]    Compiling gamechanger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::stdin`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::stdin;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:88:7
[INFO] [stdout]    |
[INFO] [stdout] 88 |     if(age_old == 5){
[INFO] [stdout]    |       ^            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 88 -     if(age_old == 5){
[INFO] [stdout] 88 +     if age_old == 5 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:102:23
[INFO] [stdout]     |
[INFO] [stdout] 102 |     let can_vote = if (age_old >= 18) {true} else {false};
[INFO] [stdout]     |                       ^             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 102 -     let can_vote = if (age_old >= 18) {true} else {false};
[INFO] [stdout] 102 +     let can_vote = if age_old >= 18 {true} else {false};
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:109:11
[INFO] [stdout]     |
[INFO] [stdout] 109 |         if((x % 2) == 0){
[INFO] [stdout]     |           ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 109 -         if((x % 2) == 0){
[INFO] [stdout] 109 +         if (x % 2) == 0 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:115:11
[INFO] [stdout]     |
[INFO] [stdout] 115 |         if(x > 10){
[INFO] [stdout]     |           ^      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 115 -         if(x > 10){
[INFO] [stdout] 115 +         if x > 10 {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f_name`
[INFO] [stdout]   --> src/main.rs:46:10
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let (f_name, l_name) = ("Bobby", "Keel");
[INFO] [stdout]    |          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_f_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l_name`
[INFO] [stdout]   --> src/main.rs:46:18
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let (f_name, l_name) = ("Bobby", "Keel");
[INFO] [stdout]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_l_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/main.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let count = rand_string.chars().count();
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rand_tuple`
[INFO] [stdout]    --> src/main.rs:233:9
[INFO] [stdout]     |
[INFO] [stdout] 233 |     let rand_tuple = ("Bobby", 40);
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rand_tuple`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prim_val2`
[INFO] [stdout]    --> src/main.rs:265:9
[INFO] [stdout]     |
[INFO] [stdout] 265 |     let prim_val2 = prim_val;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prim_val2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `quicksilver`
[INFO] [stdout]    --> src/main.rs:293:9
[INFO] [stdout]     |
[INFO] [stdout] 293 |     let quicksilver = Hero::Fast;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_quicksilver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut age: i32 = 40;
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let mut neg_4 = -4i32;
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:274:9
[INFO] [stdout]     |
[INFO] [stdout] 274 |     let mut circle1 = Circle {
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:286:9
[INFO] [stdout]     |
[INFO] [stdout] 286 |     let mut rect1 = Rectangle {
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "490a10b71f057aac9cd5d59962ce403ccb201e6fd963f417d258f09ae6bb8ded", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "490a10b71f057aac9cd5d59962ce403ccb201e6fd963f417d258f09ae6bb8ded", kill_on_drop: false }`
[INFO] [stdout] 490a10b71f057aac9cd5d59962ce403ccb201e6fd963f417d258f09ae6bb8ded
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5877f414da83fbfa835e74eeb90d43b2f18717f9da2de5adb7b81c7463466b4b
[INFO] running `Command { std: "docker" "start" "-a" "5877f414da83fbfa835e74eeb90d43b2f18717f9da2de5adb7b81c7463466b4b", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `core::num`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::num;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::stdin`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::stdin;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:88:7
[INFO] [stderr]    |
[INFO] [stderr] 88 |     if(age_old == 5){
[INFO] [stderr]    |       ^            ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 88 -     if(age_old == 5){
[INFO] [stderr] 88 +     if age_old == 5 {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:102:23
[INFO] [stderr]     |
[INFO] [stderr] 102 |     let can_vote = if (age_old >= 18) {true} else {false};
[INFO] [stderr]     |                       ^             ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 102 -     let can_vote = if (age_old >= 18) {true} else {false};
[INFO] [stderr] 102 +     let can_vote = if age_old >= 18 {true} else {false};
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:109:11
[INFO] [stderr]     |
[INFO] [stderr] 109 |         if((x % 2) == 0){
[INFO] [stderr]     |           ^            ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 109 -         if((x % 2) == 0){
[INFO] [stderr] 109 +         if (x % 2) == 0 {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:115:11
[INFO] [stderr]     |
[INFO] [stderr] 115 |         if(x > 10){
[INFO] [stderr]     |           ^      ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 115 -         if(x > 10){
[INFO] [stderr] 115 +         if x > 10 {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f_name`
[INFO] [stderr]   --> src/main.rs:46:10
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let (f_name, l_name) = ("Bobby", "Keel");
[INFO] [stderr]    |          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_f_name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `l_name`
[INFO] [stderr]   --> src/main.rs:46:18
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let (f_name, l_name) = ("Bobby", "Keel");
[INFO] [stderr]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_l_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stderr]    --> src/main.rs:144:9
[INFO] [stderr]     |
[INFO] [stderr] 144 |     let count = rand_string.chars().count();
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rand_tuple`
[INFO] [stderr]    --> src/main.rs:233:9
[INFO] [stderr]     |
[INFO] [stderr] 233 |     let rand_tuple = ("Bobby", 40);
[INFO] [stderr]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rand_tuple`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `prim_val2`
[INFO] [stderr]    --> src/main.rs:265:9
[INFO] [stderr]     |
[INFO] [stderr] 265 |     let prim_val2 = prim_val;
[INFO] [stderr]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prim_val2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `quicksilver`
[INFO] [stderr]    --> src/main.rs:293:9
[INFO] [stderr]     |
[INFO] [stderr] 293 |     let quicksilver = Hero::Fast;
[INFO] [stderr]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_quicksilver`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut age: i32 = 40;
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 |     let mut neg_4 = -4i32;
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:274:9
[INFO] [stderr]     |
[INFO] [stderr] 274 |     let mut circle1 = Circle {
[INFO] [stderr]     |         ----^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:286:9
[INFO] [stderr]     |
[INFO] [stderr] 286 |     let mut rect1 = Rectangle {
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `gamechanger` (bin "gamechanger" test) generated 16 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/gamechanger-d0fd03187d1adc7d)
[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" "5877f414da83fbfa835e74eeb90d43b2f18717f9da2de5adb7b81c7463466b4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5877f414da83fbfa835e74eeb90d43b2f18717f9da2de5adb7b81c7463466b4b", kill_on_drop: false }`
[INFO] [stdout] 5877f414da83fbfa835e74eeb90d43b2f18717f9da2de5adb7b81c7463466b4b