[INFO] cloning repository https://github.com/nagolove/rust_hello [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nagolove/rust_hello" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnagolove%2Frust_hello", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnagolove%2Frust_hello'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f062347f36254985e62de513f75adf7afcaf7009 [INFO] testing nagolove/rust_hello against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnagolove%2Frust_hello" "/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/nagolove/rust_hello on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/nagolove/rust_hello [INFO] finished tweaking git repo https://github.com/nagolove/rust_hello [INFO] tweaked toml for git repo https://github.com/nagolove/rust_hello written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/nagolove/rust_hello already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 256af579005eda4c4bf55acdb7e32fb4fb8cd9e0aa89d5275c8df3fbbfe017d2 [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" "256af579005eda4c4bf55acdb7e32fb4fb8cd9e0aa89d5275c8df3fbbfe017d2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "256af579005eda4c4bf55acdb7e32fb4fb8cd9e0aa89d5275c8df3fbbfe017d2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "256af579005eda4c4bf55acdb7e32fb4fb8cd9e0aa89d5275c8df3fbbfe017d2", kill_on_drop: false }` [INFO] [stdout] 256af579005eda4c4bf55acdb7e32fb4fb8cd9e0aa89d5275c8df3fbbfe017d2 [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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--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] e0a367f08ac159cb40d91765ae85c26491caad0723f8d979a6e630f628c0d4cb [INFO] running `Command { std: "docker" "start" "-a" "e0a367f08ac159cb40d91765ae85c26491caad0723f8d979a6e630f628c0d4cb", kill_on_drop: false }` [INFO] [stderr] Compiling rust_hello v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Arc` [INFO] [stdout] --> src/main.rs:256:24 [INFO] [stdout] | [INFO] [stdout] 256 | use std::sync::{Mutex, Arc}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let x = 1; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:46:13 [INFO] [stdout] | [INFO] [stdout] 46 | let mut i: i16 = 1; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/main.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let k: i16 = 1; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ok1` [INFO] [stdout] --> src/main.rs:49:9 [INFO] [stdout] | [INFO] [stdout] 49 | let ok1: bool = false; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ok1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ch` [INFO] [stdout] --> src/main.rs:50:9 [INFO] [stdout] | [INFO] [stdout] 50 | let ch: char = 'a'; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ch` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ch` [INFO] [stdout] --> src/main.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let ch: i8; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ch` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `secret` [INFO] [stdout] --> src/main.rs:232:9 [INFO] [stdout] | [INFO] [stdout] 232 | let secret = rand::thread_rng().gen_range(1..11); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_secret` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `line` [INFO] [stdout] --> src/main.rs:233:9 [INFO] [stdout] | [INFO] [stdout] 233 | let line: u32 = line.trim().parse().expect("Should be a number"); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_line` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `args` [INFO] [stdout] --> src/main.rs:235:9 [INFO] [stdout] | [INFO] [stdout] 235 | let args: Vec = env::args().collect(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `args` [INFO] [stdout] --> src/main.rs:245:9 [INFO] [stdout] | [INFO] [stdout] 245 | let args: Vec = env::args().collect(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p` [INFO] [stdout] --> src/main.rs:310:9 [INFO] [stdout] | [INFO] [stdout] 310 | let p = Person::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p` [INFO] [stdout] --> src/main.rs:311:9 [INFO] [stdout] | [INFO] [stdout] 311 | let p: Person = Person::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | let mut i: i16 = 1; [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: `sub` [INFO] [stdout] --> src/main.rs:37:35 [INFO] [stdout] | [INFO] [stdout] 37 | println!("small"); fn sub(){} [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `fun9` [INFO] [stdout] --> src/main.rs:155:4 [INFO] [stdout] | [INFO] [stdout] 155 | fn fun9() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `abs` [INFO] [stdout] --> src/main.rs:183:4 [INFO] [stdout] | [INFO] [stdout] 183 | fn abs(x: f64) -> f64 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `clamp` [INFO] [stdout] --> src/main.rs:191:4 [INFO] [stdout] | [INFO] [stdout] 191 | fn clamp(x: f64, x1: f64, x2: f64) -> f64 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `factorial` [INFO] [stdout] --> src/main.rs:201:4 [INFO] [stdout] | [INFO] [stdout] 201 | fn factorial(n: u64) -> u64 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `fun11` [INFO] [stdout] --> src/main.rs:228:4 [INFO] [stdout] | [INFO] [stdout] 228 | fn fun11() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Node` [INFO] [stdout] --> src/main.rs:258:8 [INFO] [stdout] | [INFO] [stdout] 258 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/main.rs:267:8 [INFO] [stdout] | [INFO] [stdout] 267 | fn new(name: &String) -> Node { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `bar` [INFO] [stdout] --> src/main.rs:277:8 [INFO] [stdout] | [INFO] [stdout] 277 | fn bar(&self) -> i8 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/main.rs:296:8 [INFO] [stdout] | [INFO] [stdout] 296 | fn new() -> Person { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `fun12` [INFO] [stdout] --> src/main.rs:309:4 [INFO] [stdout] | [INFO] [stdout] 309 | fn fun12() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:279:9 [INFO] [stdout] | [INFO] [stdout] 279 | self.mutex.lock(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:281:9 [INFO] [stdout] | [INFO] [stdout] 281 | self.mutex.lock(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 27 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.66s [INFO] running `Command { std: "docker" "inspect" "e0a367f08ac159cb40d91765ae85c26491caad0723f8d979a6e630f628c0d4cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e0a367f08ac159cb40d91765ae85c26491caad0723f8d979a6e630f628c0d4cb", kill_on_drop: false }` [INFO] [stdout] e0a367f08ac159cb40d91765ae85c26491caad0723f8d979a6e630f628c0d4cb [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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c07ed6516f3f22bdacfa1c9623f8f78e8ec7d45c4cc0b2ab09ec4f21d6454bde [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" "c07ed6516f3f22bdacfa1c9623f8f78e8ec7d45c4cc0b2ab09ec4f21d6454bde", kill_on_drop: false }` [INFO] [stderr] Compiling rust_hello v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Arc` [INFO] [stdout] --> src/main.rs:256:24 [INFO] [stdout] | [INFO] [stdout] 256 | use std::sync::{Mutex, Arc}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let x = 1; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:46:13 [INFO] [stdout] | [INFO] [stdout] 46 | let mut i: i16 = 1; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/main.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let k: i16 = 1; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ok1` [INFO] [stdout] --> src/main.rs:49:9 [INFO] [stdout] | [INFO] [stdout] 49 | let ok1: bool = false; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ok1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ch` [INFO] [stdout] --> src/main.rs:50:9 [INFO] [stdout] | [INFO] [stdout] 50 | let ch: char = 'a'; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ch` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ch` [INFO] [stdout] --> src/main.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let ch: i8; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ch` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `secret` [INFO] [stdout] --> src/main.rs:232:9 [INFO] [stdout] | [INFO] [stdout] 232 | let secret = rand::thread_rng().gen_range(1..11); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_secret` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `line` [INFO] [stdout] --> src/main.rs:233:9 [INFO] [stdout] | [INFO] [stdout] 233 | let line: u32 = line.trim().parse().expect("Should be a number"); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_line` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `args` [INFO] [stdout] --> src/main.rs:235:9 [INFO] [stdout] | [INFO] [stdout] 235 | let args: Vec = env::args().collect(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `args` [INFO] [stdout] --> src/main.rs:245:9 [INFO] [stdout] | [INFO] [stdout] 245 | let args: Vec = env::args().collect(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p` [INFO] [stdout] --> src/main.rs:310:9 [INFO] [stdout] | [INFO] [stdout] 310 | let p = Person::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p` [INFO] [stdout] --> src/main.rs:311:9 [INFO] [stdout] | [INFO] [stdout] 311 | let p: Person = Person::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | let mut i: i16 = 1; [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: `sub` [INFO] [stdout] --> src/main.rs:37:35 [INFO] [stdout] | [INFO] [stdout] 37 | println!("small"); fn sub(){} [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `fun9` [INFO] [stdout] --> src/main.rs:155:4 [INFO] [stdout] | [INFO] [stdout] 155 | fn fun9() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `abs` [INFO] [stdout] --> src/main.rs:183:4 [INFO] [stdout] | [INFO] [stdout] 183 | fn abs(x: f64) -> f64 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `clamp` [INFO] [stdout] --> src/main.rs:191:4 [INFO] [stdout] | [INFO] [stdout] 191 | fn clamp(x: f64, x1: f64, x2: f64) -> f64 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `factorial` [INFO] [stdout] --> src/main.rs:201:4 [INFO] [stdout] | [INFO] [stdout] 201 | fn factorial(n: u64) -> u64 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `fun11` [INFO] [stdout] --> src/main.rs:228:4 [INFO] [stdout] | [INFO] [stdout] 228 | fn fun11() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Node` [INFO] [stdout] --> src/main.rs:258:8 [INFO] [stdout] | [INFO] [stdout] 258 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/main.rs:267:8 [INFO] [stdout] | [INFO] [stdout] 267 | fn new(name: &String) -> Node { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `bar` [INFO] [stdout] --> src/main.rs:277:8 [INFO] [stdout] | [INFO] [stdout] 277 | fn bar(&self) -> i8 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/main.rs:296:8 [INFO] [stdout] | [INFO] [stdout] 296 | fn new() -> Person { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `fun12` [INFO] [stdout] --> src/main.rs:309:4 [INFO] [stdout] | [INFO] [stdout] 309 | fn fun12() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:279:9 [INFO] [stdout] | [INFO] [stdout] 279 | self.mutex.lock(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:281:9 [INFO] [stdout] | [INFO] [stdout] 281 | self.mutex.lock(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 27 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.94s [INFO] running `Command { std: "docker" "inspect" "c07ed6516f3f22bdacfa1c9623f8f78e8ec7d45c4cc0b2ab09ec4f21d6454bde", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c07ed6516f3f22bdacfa1c9623f8f78e8ec7d45c4cc0b2ab09ec4f21d6454bde", kill_on_drop: false }` [INFO] [stdout] c07ed6516f3f22bdacfa1c9623f8f78e8ec7d45c4cc0b2ab09ec4f21d6454bde [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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 27a6299465dd87895dc51934f3b3a702e7f3a7839130546590f61dc3b7b76ba5 [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" "27a6299465dd87895dc51934f3b3a702e7f3a7839130546590f61dc3b7b76ba5", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `Arc` [INFO] [stderr] --> src/main.rs:256:24 [INFO] [stderr] | [INFO] [stderr] 256 | use std::sync::{Mutex, Arc}; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:20:9 [INFO] [stderr] | [INFO] [stderr] 20 | let x = 1; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:46:13 [INFO] [stderr] | [INFO] [stderr] 46 | let mut i: i16 = 1; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `k` [INFO] [stderr] --> src/main.rs:47:9 [INFO] [stderr] | [INFO] [stderr] 47 | let k: i16 = 1; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ok1` [INFO] [stderr] --> src/main.rs:49:9 [INFO] [stderr] | [INFO] [stderr] 49 | let ok1: bool = false; [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_ok1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ch` [INFO] [stderr] --> src/main.rs:50:9 [INFO] [stderr] | [INFO] [stderr] 50 | let ch: char = 'a'; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_ch` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ch` [INFO] [stderr] --> src/main.rs:51:9 [INFO] [stderr] | [INFO] [stderr] 51 | let ch: i8; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_ch` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `secret` [INFO] [stderr] --> src/main.rs:232:9 [INFO] [stderr] | [INFO] [stderr] 232 | let secret = rand::thread_rng().gen_range(1..11); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_secret` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `line` [INFO] [stderr] --> src/main.rs:233:9 [INFO] [stderr] | [INFO] [stderr] 233 | let line: u32 = line.trim().parse().expect("Should be a number"); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_line` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `args` [INFO] [stderr] --> src/main.rs:235:9 [INFO] [stderr] | [INFO] [stderr] 235 | let args: Vec = env::args().collect(); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `args` [INFO] [stderr] --> src/main.rs:245:9 [INFO] [stderr] | [INFO] [stderr] 245 | let args: Vec = env::args().collect(); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_args` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/main.rs:310:9 [INFO] [stderr] | [INFO] [stderr] 310 | let p = Person::new(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/main.rs:311:9 [INFO] [stderr] | [INFO] [stderr] 311 | let p: Person = Person::new(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:46:9 [INFO] [stderr] | [INFO] [stderr] 46 | let mut i: i16 = 1; [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: `sub` [INFO] [stderr] --> src/main.rs:37:35 [INFO] [stderr] | [INFO] [stderr] 37 | println!("small"); fn sub(){} [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `fun9` [INFO] [stderr] --> src/main.rs:155:4 [INFO] [stderr] | [INFO] [stderr] 155 | fn fun9() { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `abs` [INFO] [stderr] --> src/main.rs:183:4 [INFO] [stderr] | [INFO] [stderr] 183 | fn abs(x: f64) -> f64 { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `clamp` [INFO] [stderr] --> src/main.rs:191:4 [INFO] [stderr] | [INFO] [stderr] 191 | fn clamp(x: f64, x1: f64, x2: f64) -> f64 { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `factorial` [INFO] [stderr] --> src/main.rs:201:4 [INFO] [stderr] | [INFO] [stderr] 201 | fn factorial(n: u64) -> u64 { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `fun11` [INFO] [stderr] --> src/main.rs:228:4 [INFO] [stderr] | [INFO] [stderr] 228 | fn fun11() { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Node` [INFO] [stderr] --> src/main.rs:258:8 [INFO] [stderr] | [INFO] [stderr] 258 | struct Node { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/main.rs:267:8 [INFO] [stderr] | [INFO] [stderr] 267 | fn new(name: &String) -> Node { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `bar` [INFO] [stderr] --> src/main.rs:277:8 [INFO] [stderr] | [INFO] [stderr] 277 | fn bar(&self) -> i8 { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/main.rs:296:8 [INFO] [stderr] | [INFO] [stderr] 296 | fn new() -> Person { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `fun12` [INFO] [stderr] --> src/main.rs:309:4 [INFO] [stderr] | [INFO] [stderr] 309 | fn fun12() { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:279:9 [INFO] [stderr] | [INFO] [stderr] 279 | self.mutex.lock(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:281:9 [INFO] [stderr] | [INFO] [stderr] 281 | self.mutex.lock(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: `rust_hello` (bin "rust_hello" test) generated 27 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust_hello-3b114325078a5463) [INFO] [stdout] running 1 test [INFO] [stdout] test test_gcd ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "27a6299465dd87895dc51934f3b3a702e7f3a7839130546590f61dc3b7b76ba5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "27a6299465dd87895dc51934f3b3a702e7f3a7839130546590f61dc3b7b76ba5", kill_on_drop: false }` [INFO] [stdout] 27a6299465dd87895dc51934f3b3a702e7f3a7839130546590f61dc3b7b76ba5