[INFO] cloning repository https://github.com/haroonsyed/Rust-Tut
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/haroonsyed/Rust-Tut" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharoonsyed%2FRust-Tut", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharoonsyed%2FRust-Tut'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 145dc67edac7c824df925be18dac4ea257f04534
[INFO] testing haroonsyed/Rust-Tut against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharoonsyed%2FRust-Tut" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/haroonsyed/Rust-Tut 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/haroonsyed/Rust-Tut
[INFO] finished tweaking git repo https://github.com/haroonsyed/Rust-Tut
[INFO] tweaked toml for git repo https://github.com/haroonsyed/Rust-Tut written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/haroonsyed/Rust-Tut 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 0d79d33864b27d7c362f4065b619e89e6356a6464ff0b0dd893623d6e276067e
[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" "0d79d33864b27d7c362f4065b619e89e6356a6464ff0b0dd893623d6e276067e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d79d33864b27d7c362f4065b619e89e6356a6464ff0b0dd893623d6e276067e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d79d33864b27d7c362f4065b619e89e6356a6464ff0b0dd893623d6e276067e", kill_on_drop: false }`
[INFO] [stdout] 0d79d33864b27d7c362f4065b619e89e6356a6464ff0b0dd893623d6e276067e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 17512724918d2067b84b79e9bf2c4001ed9ea3ab8190c0e50a787484547616aa
[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" "17512724918d2067b84b79e9bf2c4001ed9ea3ab8190c0e50a787484547616aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling Rust-Tut v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ops::Add`
[INFO] [stdout]  --> src/strings.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Add;
[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/conditionals.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 |     if(age>=18) {
[INFO] [stdout]   |       ^       ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 5 -     if(age>=18) {
[INFO] [stdout] 5 +     if age>=18 {
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/conditionals.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 |     if(age >= 18 && registered) {
[INFO] [stdout]    |       ^                       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -     if(age >= 18 && registered) {
[INFO] [stdout] 11 +     if age >= 18 && registered {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]  --> src/loops.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |         if(count == 10) {
[INFO] [stdout]   |           ^           ^
[INFO] [stdout]   |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 8 -         if(count == 10) {
[INFO] [stdout] 8 +         if count == 10 {
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name2`
[INFO] [stdout]   --> src/vars.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let (name2,age2) = ("Syed",20);
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_name2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `age2`
[INFO] [stdout]   --> src/vars.rs:21:16
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let (name2,age2) = ("Syed",20);
[INFO] [stdout]    |                ^^^^ help: if this is intentional, prefix it with an underscore: `_age2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `capped`
[INFO] [stdout]   --> src/strings.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut capped = String::with_capacity(5);
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_capped`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vec2`
[INFO] [stdout]   --> src/pointers.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 |   let vec2 = vec1;
[INFO] [stdout]    |       ^^^^ help: if this is intentional, prefix it with an underscore: `_vec2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/strings.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut capped = String::with_capacity(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: variable does not need to be mutable
[INFO] [stdout]  --> src/structs.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 |   let mut white = Color {
[INFO] [stdout]   |       ----^^^^^
[INFO] [stdout]   |       |
[INFO] [stdout]   |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/print.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/vars.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/types.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/strings.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/arrays.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/vectors.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/conditionals.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/loops.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/functions.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `greeting`
[INFO] [stdout]   --> src/functions.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn greeting(name: &str) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add`
[INFO] [stdout]   --> src/functions.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn add(n1: i32, n2: i32)->i32 {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/pointers.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Rust_Tut` 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_tut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `bigNum` should have a snake case name
[INFO] [stdout]   --> src/types.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let bigNum:i64 = (std::i32::MAX as i64)+1;
[INFO] [stdout]    |         ^^^^^^ help: convert the identifier to snake case: `big_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `myString` should have a snake case name
[INFO] [stdout]  --> src/strings.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut myString = String::from("Hello");
[INFO] [stdout]   |             ^^^^^^^^ help: convert the identifier to snake case: `my_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "17512724918d2067b84b79e9bf2c4001ed9ea3ab8190c0e50a787484547616aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17512724918d2067b84b79e9bf2c4001ed9ea3ab8190c0e50a787484547616aa", kill_on_drop: false }`
[INFO] [stdout] 17512724918d2067b84b79e9bf2c4001ed9ea3ab8190c0e50a787484547616aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] a3f9f7769e62257cff3229d1974f9253550272df9c3b9e1d0742f39ac1233d06
[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" "a3f9f7769e62257cff3229d1974f9253550272df9c3b9e1d0742f39ac1233d06", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling Rust-Tut v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ops::Add`
[INFO] [stdout]  --> src/strings.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Add;
[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/conditionals.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 |     if(age>=18) {
[INFO] [stdout]   |       ^       ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 5 -     if(age>=18) {
[INFO] [stdout] 5 +     if age>=18 {
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/conditionals.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 |     if(age >= 18 && registered) {
[INFO] [stdout]    |       ^                       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -     if(age >= 18 && registered) {
[INFO] [stdout] 11 +     if age >= 18 && registered {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]  --> src/loops.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |         if(count == 10) {
[INFO] [stdout]   |           ^           ^
[INFO] [stdout]   |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 8 -         if(count == 10) {
[INFO] [stdout] 8 +         if count == 10 {
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name2`
[INFO] [stdout]   --> src/vars.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let (name2,age2) = ("Syed",20);
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_name2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `age2`
[INFO] [stdout]   --> src/vars.rs:21:16
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let (name2,age2) = ("Syed",20);
[INFO] [stdout]    |                ^^^^ help: if this is intentional, prefix it with an underscore: `_age2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `capped`
[INFO] [stdout]   --> src/strings.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut capped = String::with_capacity(5);
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_capped`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vec2`
[INFO] [stdout]   --> src/pointers.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 |   let vec2 = vec1;
[INFO] [stdout]    |       ^^^^ help: if this is intentional, prefix it with an underscore: `_vec2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/strings.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut capped = String::with_capacity(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: variable does not need to be mutable
[INFO] [stdout]  --> src/structs.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 |   let mut white = Color {
[INFO] [stdout]   |       ----^^^^^
[INFO] [stdout]   |       |
[INFO] [stdout]   |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/print.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/vars.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/types.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/strings.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/arrays.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/vectors.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/conditionals.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/loops.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/functions.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `greeting`
[INFO] [stdout]   --> src/functions.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn greeting(name: &str) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add`
[INFO] [stdout]   --> src/functions.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn add(n1: i32, n2: i32)->i32 {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/pointers.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Rust_Tut` 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_tut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `bigNum` should have a snake case name
[INFO] [stdout]   --> src/types.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let bigNum:i64 = (std::i32::MAX as i64)+1;
[INFO] [stdout]    |         ^^^^^^ help: convert the identifier to snake case: `big_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `myString` should have a snake case name
[INFO] [stdout]  --> src/strings.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut myString = String::from("Hello");
[INFO] [stdout]   |             ^^^^^^^^ help: convert the identifier to snake case: `my_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "a3f9f7769e62257cff3229d1974f9253550272df9c3b9e1d0742f39ac1233d06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3f9f7769e62257cff3229d1974f9253550272df9c3b9e1d0742f39ac1233d06", kill_on_drop: false }`
[INFO] [stdout] a3f9f7769e62257cff3229d1974f9253550272df9c3b9e1d0742f39ac1233d06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] d1c0c6c8988be58cb4b81899ff84f29b5190778223ae28f053556526f9b1718f
[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" "d1c0c6c8988be58cb4b81899ff84f29b5190778223ae28f053556526f9b1718f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `std::ops::Add`
[INFO] [stderr]  --> src/strings.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ops::Add;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]  --> src/conditionals.rs:5:7
[INFO] [stderr]   |
[INFO] [stderr] 5 |     if(age>=18) {
[INFO] [stderr]   |       ^       ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr] 5 -     if(age>=18) {
[INFO] [stderr] 5 +     if age>=18 {
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/conditionals.rs:11:7
[INFO] [stderr]    |
[INFO] [stderr] 11 |     if(age >= 18 && registered) {
[INFO] [stderr]    |       ^                       ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 11 -     if(age >= 18 && registered) {
[INFO] [stderr] 11 +     if age >= 18 && registered {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]  --> src/loops.rs:8:11
[INFO] [stderr]   |
[INFO] [stderr] 8 |         if(count == 10) {
[INFO] [stderr]   |           ^           ^
[INFO] [stderr]   |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr] 8 -         if(count == 10) {
[INFO] [stderr] 8 +         if count == 10 {
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name2`
[INFO] [stderr]   --> src/vars.rs:21:10
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let (name2,age2) = ("Syed",20);
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_name2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `age2`
[INFO] [stderr]   --> src/vars.rs:21:16
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let (name2,age2) = ("Syed",20);
[INFO] [stderr]    |                ^^^^ help: if this is intentional, prefix it with an underscore: `_age2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `capped`
[INFO] [stderr]   --> src/strings.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut capped = String::with_capacity(5);
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_capped`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vec2`
[INFO] [stderr]   --> src/pointers.rs:10:7
[INFO] [stderr]    |
[INFO] [stderr] 10 |   let vec2 = vec1;
[INFO] [stderr]    |       ^^^^ help: if this is intentional, prefix it with an underscore: `_vec2`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/strings.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut capped = String::with_capacity(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: variable does not need to be mutable
[INFO] [stderr]  --> src/structs.rs:3:7
[INFO] [stderr]   |
[INFO] [stderr] 3 |   let mut white = Color {
[INFO] [stderr]   |       ----^^^^^
[INFO] [stderr]   |       |
[INFO] [stderr]   |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]  --> src/print.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn run() {
[INFO] [stderr]   |        ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]  --> src/vars.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn run() {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]  --> src/types.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn run() {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]  --> src/strings.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn run() {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]  --> src/arrays.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn run() {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]  --> src/vectors.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn run() {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]  --> src/conditionals.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn run() {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]  --> src/loops.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn run() {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]  --> src/functions.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn run() {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `greeting`
[INFO] [stderr]   --> src/functions.rs:14:4
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn greeting(name: &str) {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `add`
[INFO] [stderr]   --> src/functions.rs:19:4
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn add(n1: i32, n2: i32)->i32 {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]  --> src/pointers.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn run() {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Rust_Tut` 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_tut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `bigNum` should have a snake case name
[INFO] [stderr]   --> src/types.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let bigNum:i64 = (std::i32::MAX as i64)+1;
[INFO] [stderr]    |         ^^^^^^ help: convert the identifier to snake case: `big_num`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `myString` should have a snake case name
[INFO] [stderr]  --> src/strings.rs:4:13
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let mut myString = String::from("Hello");
[INFO] [stderr]   |             ^^^^^^^^ help: convert the identifier to snake case: `my_string`
[INFO] [stderr] 
[INFO] [stderr] warning: `Rust-Tut` (bin "Rust-Tut" test) generated 25 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.67s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/Rust_Tut-0363b89c21fb0587)
[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" "d1c0c6c8988be58cb4b81899ff84f29b5190778223ae28f053556526f9b1718f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1c0c6c8988be58cb4b81899ff84f29b5190778223ae28f053556526f9b1718f", kill_on_drop: false }`
[INFO] [stdout] d1c0c6c8988be58cb4b81899ff84f29b5190778223ae28f053556526f9b1718f