[INFO] cloning repository https://github.com/Imran-S-heikh/rust_man
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Imran-S-heikh/rust_man" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImran-S-heikh%2Frust_man", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImran-S-heikh%2Frust_man'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f40dc668848982bc2c5b36ca0d0e42c74fe1d063
[INFO] testing Imran-S-heikh/rust_man against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImran-S-heikh%2Frust_man" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Imran-S-heikh/rust_man 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/Imran-S-heikh/rust_man
[INFO] finished tweaking git repo https://github.com/Imran-S-heikh/rust_man
[INFO] tweaked toml for git repo https://github.com/Imran-S-heikh/rust_man written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Imran-S-heikh/rust_man 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] a985bbe4c0ac3b5482ce0f6e0739b5b1a02a7d0793c1574819bd0388623c6139
[INFO] running `Command { std: "docker" "start" "-a" "a985bbe4c0ac3b5482ce0f6e0739b5b1a02a7d0793c1574819bd0388623c6139", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a985bbe4c0ac3b5482ce0f6e0739b5b1a02a7d0793c1574819bd0388623c6139", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a985bbe4c0ac3b5482ce0f6e0739b5b1a02a7d0793c1574819bd0388623c6139", kill_on_drop: false }`
[INFO] [stdout] a985bbe4c0ac3b5482ce0f6e0739b5b1a02a7d0793c1574819bd0388623c6139
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] d8a1aef6a4714b949a190ba052fa198197ac88f8c57a6df02bd0b94994c66bcf
[INFO] running `Command { std: "docker" "start" "-a" "d8a1aef6a4714b949a190ba052fa198197ac88f8c57a6df02bd0b94994c66bcf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling rust_man v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `age`
[INFO] [stdout]    --> src/smart_pointer.rs:118:13
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let age = CustomPointer {
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_age`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/smart_pointer.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let b = RcCons(3, Rc::clone(&a));
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/smart_pointer.rs:130:13
[INFO] [stdout]     |
[INFO] [stdout] 130 |         let c = RcCons(4,Rc::clone(&a));
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `another`
[INFO] [stdout]  --> src/generic/lifetime.rs:9:28
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn life<'a>(value: &'a str,another: &i32)->&'a str {
[INFO] [stdout]   |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/smart_pointer.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |         let mut home = Rc::new(String::from("Random Vialla"));
[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: struct is never constructed: `Pair`
[INFO] [stdout]  --> src/generic/prac.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Pair<T> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/generic/prac.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn new(x: T, y: T) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cmp_display`
[INFO] [stdout]   --> src/generic/prac.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn cmp_display(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]   --> src/generic/prac.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `largest`
[INFO] [stdout]   --> src/generic/prac.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn largest<T: PartialOrd + Copy>(list: &[T]) -> T {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `largest`
[INFO] [stdout]  --> src/generic/lifetime.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn largest<'a>(first: &'a str, second: &'a str) -> &'a str {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `life`
[INFO] [stdout]  --> src/generic/lifetime.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn life<'a>(value: &'a str,another: &i32)->&'a str {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lifetime`
[INFO] [stdout]   --> src/generic/lifetime.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn lifetime() {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Cacher`
[INFO] [stdout]  --> src/closures/generate_workout.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Cacher<T>
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/closures/generate_workout.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn new(calculation: T) -> Cacher<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value`
[INFO] [stdout]   --> src/closures/generate_workout.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn value(&mut self, arg: u32) -> u32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate_workout`
[INFO] [stdout]   --> src/closures/generate_workout.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn generate_workout(intensity: u32, random_number: u32) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `shoes_in_size`
[INFO] [stdout]  --> src/closures/iterator.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn shoes_in_size(shoes: Vec<Shoe>, size: u8) -> Vec<Shoe> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/closures/iterator.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn new() -> Counter {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `iterator`
[INFO] [stdout]   --> src/closures/iterator.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn iterator() {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Cons`
[INFO] [stdout]  --> src/smart_pointer.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Cons(i32, Box<List>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Nil`
[INFO] [stdout]  --> src/smart_pointer.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Nil,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `RList`
[INFO] [stdout]   --> src/smart_pointer.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout] 10 | enum RList {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/smart_pointer.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn new(x: T) -> MyBox<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `LimitTracker`
[INFO] [stdout]   --> src/smart_pointer.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct LimitTracker<'a, T: Messenger> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/smart_pointer.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn new (messenger: &T,max: usize)-> LimitTracker<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_value`
[INFO] [stdout]   --> src/smart_pointer.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn set_value(&mut self, value: usize) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]   --> src/smart_pointer.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.36s
[INFO] running `Command { std: "docker" "inspect" "d8a1aef6a4714b949a190ba052fa198197ac88f8c57a6df02bd0b94994c66bcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8a1aef6a4714b949a190ba052fa198197ac88f8c57a6df02bd0b94994c66bcf", kill_on_drop: false }`
[INFO] [stdout] d8a1aef6a4714b949a190ba052fa198197ac88f8c57a6df02bd0b94994c66bcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 1a7d7a47e1e3c7d1dffc8e7046cf54d97b175e11b26270a8af395298bb1fcf7b
[INFO] running `Command { std: "docker" "start" "-a" "1a7d7a47e1e3c7d1dffc8e7046cf54d97b175e11b26270a8af395298bb1fcf7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_man v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `age`
[INFO] [stdout]    --> src/smart_pointer.rs:118:13
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let age = CustomPointer {
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_age`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/smart_pointer.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |         let b = RcCons(3, Rc::clone(&a));
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> src/smart_pointer.rs:130:13
[INFO] [stdout]     |
[INFO] [stdout] 130 |         let c = RcCons(4,Rc::clone(&a));
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `another`
[INFO] [stdout]  --> src/generic/lifetime.rs:9:28
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn life<'a>(value: &'a str,another: &i32)->&'a str {
[INFO] [stdout]   |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/smart_pointer.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |         let mut home = Rc::new(String::from("Random Vialla"));
[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: struct is never constructed: `Pair`
[INFO] [stdout]  --> src/generic/prac.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Pair<T> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/generic/prac.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn new(x: T, y: T) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cmp_display`
[INFO] [stdout]   --> src/generic/prac.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn cmp_display(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]   --> src/generic/prac.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `largest`
[INFO] [stdout]   --> src/generic/prac.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn largest<T: PartialOrd + Copy>(list: &[T]) -> T {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `largest`
[INFO] [stdout]  --> src/generic/lifetime.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn largest<'a>(first: &'a str, second: &'a str) -> &'a str {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `life`
[INFO] [stdout]  --> src/generic/lifetime.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn life<'a>(value: &'a str,another: &i32)->&'a str {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lifetime`
[INFO] [stdout]   --> src/generic/lifetime.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn lifetime() {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Cacher`
[INFO] [stdout]  --> src/closures/generate_workout.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Cacher<T>
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/closures/generate_workout.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn new(calculation: T) -> Cacher<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value`
[INFO] [stdout]   --> src/closures/generate_workout.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn value(&mut self, arg: u32) -> u32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate_workout`
[INFO] [stdout]   --> src/closures/generate_workout.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn generate_workout(intensity: u32, random_number: u32) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `shoes_in_size`
[INFO] [stdout]  --> src/closures/iterator.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn shoes_in_size(shoes: Vec<Shoe>, size: u8) -> Vec<Shoe> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `iterator`
[INFO] [stdout]   --> src/closures/iterator.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn iterator() {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Cons`
[INFO] [stdout]  --> src/smart_pointer.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Cons(i32, Box<List>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Nil`
[INFO] [stdout]  --> src/smart_pointer.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Nil,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `RList`
[INFO] [stdout]   --> src/smart_pointer.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout] 10 | enum RList {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/smart_pointer.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn new(x: T) -> MyBox<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `LimitTracker`
[INFO] [stdout]   --> src/smart_pointer.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct LimitTracker<'a, T: Messenger> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/smart_pointer.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn new (messenger: &T,max: usize)-> LimitTracker<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_value`
[INFO] [stdout]   --> src/smart_pointer.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn set_value(&mut self, value: usize) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]   --> src/smart_pointer.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "1a7d7a47e1e3c7d1dffc8e7046cf54d97b175e11b26270a8af395298bb1fcf7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a7d7a47e1e3c7d1dffc8e7046cf54d97b175e11b26270a8af395298bb1fcf7b", kill_on_drop: false }`
[INFO] [stdout] 1a7d7a47e1e3c7d1dffc8e7046cf54d97b175e11b26270a8af395298bb1fcf7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 079f9a15d29a559bed9664229129368e52c8f0a26f436a06c6400d6c7771fa0b
[INFO] running `Command { std: "docker" "start" "-a" "079f9a15d29a559bed9664229129368e52c8f0a26f436a06c6400d6c7771fa0b", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `age`
[INFO] [stderr]    --> src/smart_pointer.rs:118:13
[INFO] [stderr]     |
[INFO] [stderr] 118 |         let age = CustomPointer {
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_age`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/smart_pointer.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let b = RcCons(3, Rc::clone(&a));
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> src/smart_pointer.rs:130:13
[INFO] [stderr]     |
[INFO] [stderr] 130 |         let c = RcCons(4,Rc::clone(&a));
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `another`
[INFO] [stderr]  --> src/generic/lifetime.rs:9:28
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn life<'a>(value: &'a str,another: &i32)->&'a str {
[INFO] [stderr]   |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/smart_pointer.rs:134:13
[INFO] [stderr]     |
[INFO] [stderr] 134 |         let mut home = Rc::new(String::from("Random Vialla"));
[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: struct is never constructed: `Pair`
[INFO] [stderr]  --> src/generic/prac.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct Pair<T> {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> src/generic/prac.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 |     fn new(x: T, y: T) -> Self {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `cmp_display`
[INFO] [stderr]   --> src/generic/prac.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn cmp_display(&self) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]   --> src/generic/prac.rs:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `largest`
[INFO] [stderr]   --> src/generic/prac.rs:37:4
[INFO] [stderr]    |
[INFO] [stderr] 37 | fn largest<T: PartialOrd + Copy>(list: &[T]) -> T {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `largest`
[INFO] [stderr]  --> src/generic/lifetime.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn largest<'a>(first: &'a str, second: &'a str) -> &'a str {
[INFO] [stderr]   |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `life`
[INFO] [stderr]  --> src/generic/lifetime.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn life<'a>(value: &'a str,another: &i32)->&'a str {
[INFO] [stderr]   |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `lifetime`
[INFO] [stderr]   --> src/generic/lifetime.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn lifetime() {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Cacher`
[INFO] [stderr]  --> src/closures/generate_workout.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct Cacher<T>
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/closures/generate_workout.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn new(calculation: T) -> Cacher<T> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `value`
[INFO] [stderr]   --> src/closures/generate_workout.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn value(&mut self, arg: u32) -> u32 {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `generate_workout`
[INFO] [stderr]   --> src/closures/generate_workout.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn generate_workout(intensity: u32, random_number: u32) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `shoes_in_size`
[INFO] [stderr]  --> src/closures/iterator.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn shoes_in_size(shoes: Vec<Shoe>, size: u8) -> Vec<Shoe> {
[INFO] [stderr]   |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `iterator`
[INFO] [stderr]   --> src/closures/iterator.rs:46:8
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub fn iterator() {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: variant is never constructed: `Cons`
[INFO] [stdout] running 1 test
[INFO] [stderr]  --> src/smart_pointer.rs:3:5
[INFO] [stdout] test closures::iterator::calling_next_directly ... ok
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 3 |     Cons(i32, Box<List>),
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Nil`
[INFO] [stderr]  --> src/smart_pointer.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     Nil,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `RList`
[INFO] [stderr]   --> src/smart_pointer.rs:10:6
[INFO] [stderr]    |
[INFO] [stderr] 10 | enum RList {
[INFO] [stderr]    |      ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/smart_pointer.rs:29:8
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn new(x: T) -> MyBox<T> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `LimitTracker`
[INFO] [stderr]   --> src/smart_pointer.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 49 | struct LimitTracker<'a, T: Messenger> {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/smart_pointer.rs:59:8
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn new (messenger: &T,max: usize)-> LimitTracker<T> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_value`
[INFO] [stderr]   --> src/smart_pointer.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn set_value(&mut self, value: usize) {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]   --> src/smart_pointer.rs:82:8
[INFO] [stderr]    |
[INFO] [stderr] 82 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_man` (bin "rust_man" test) generated 27 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_man-cdd806c53a656555)
[INFO] running `Command { std: "docker" "inspect" "079f9a15d29a559bed9664229129368e52c8f0a26f436a06c6400d6c7771fa0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "079f9a15d29a559bed9664229129368e52c8f0a26f436a06c6400d6c7771fa0b", kill_on_drop: false }`
[INFO] [stdout] 079f9a15d29a559bed9664229129368e52c8f0a26f436a06c6400d6c7771fa0b