[INFO] cloning repository https://github.com/untilyou58/rust-exercise [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/untilyou58/rust-exercise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funtilyou58%2Frust-exercise", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funtilyou58%2Frust-exercise'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 73a3a92c67aa519feb5f990c737b864f953fff3f [INFO] checking untilyou58/rust-exercise against master#249cb84316401daf040832cdbb8a45e0f5ab6af8 for pr-138438 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funtilyou58%2Frust-exercise" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/untilyou58/rust-exercise on toolchain 249cb84316401daf040832cdbb8a45e0f5ab6af8 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+249cb84316401daf040832cdbb8a45e0f5ab6af8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/untilyou58/rust-exercise [INFO] finished tweaking git repo https://github.com/untilyou58/rust-exercise [INFO] tweaked toml for git repo https://github.com/untilyou58/rust-exercise written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/untilyou58/rust-exercise already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+249cb84316401daf040832cdbb8a45e0f5ab6af8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+249cb84316401daf040832cdbb8a45e0f5ab6af8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ac17b2ac30718126acc7912c5d12f9f27d3207f228b4ed3714f760ce3e612bb4 [INFO] running `Command { std: "docker" "start" "-a" "ac17b2ac30718126acc7912c5d12f9f27d3207f228b4ed3714f760ce3e612bb4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ac17b2ac30718126acc7912c5d12f9f27d3207f228b4ed3714f760ce3e612bb4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ac17b2ac30718126acc7912c5d12f9f27d3207f228b4ed3714f760ce3e612bb4", kill_on_drop: false }` [INFO] [stdout] ac17b2ac30718126acc7912c5d12f9f27d3207f228b4ed3714f760ce3e612bb4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+249cb84316401daf040832cdbb8a45e0f5ab6af8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b2b9d487716493de755809f73312a54aa2c79dbd94d21c6daef86a1ed5e24a81 [INFO] running `Command { std: "docker" "start" "-a" "b2b9d487716493de755809f73312a54aa2c79dbd94d21c6daef86a1ed5e24a81", kill_on_drop: false }` [INFO] [stderr] Checking exercise v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/ownership/ex1.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `change_value` is never used [INFO] [stdout] --> src/ownership/ex1.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn change_value(input: u32, output: &mut u32) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/ownership/ex2.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `vector_is_prime` is never used [INFO] [stdout] --> src/ownership/ex2.rs:20:4 [INFO] [stdout] | [INFO] [stdout] 20 | fn vector_is_prime(num: u64, p: &Vec) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/ownership/ex3.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/ownership/ex4.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `test` is never used [INFO] [stdout] --> src/ownership/ex4.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn test(a: &mut Vec) -> (Vec, i32) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `School` is never constructed [INFO] [stdout] --> src/complex/ex1.rs:82:12 [INFO] [stdout] | [INFO] [stdout] 82 | pub struct School { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `add`, `grades`, and `grade` are never used [INFO] [stdout] --> src/complex/ex1.rs:87:12 [INFO] [stdout] | [INFO] [stdout] 86 | impl School { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 87 | pub fn new() -> School { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 93 | pub fn add(&mut self, grade: u32, student: &str) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 97 | pub fn grades(&self) -> Vec { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 106 | pub fn grade(&self, grade: u32) -> Vec { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/complex/ex1.rs:119:8 [INFO] [stdout] | [INFO] [stdout] 119 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `StrDisplayable` is never constructed [INFO] [stdout] --> src/trait_life/ex2.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct StrDisplayable<'a>(Vec<&'a str>); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/trait_life/ex2.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/ownership/ex1.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `change_value` is never used [INFO] [stdout] --> src/ownership/ex1.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn change_value(input: u32, output: &mut u32) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/ownership/ex2.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `vector_is_prime` is never used [INFO] [stdout] --> src/ownership/ex2.rs:20:4 [INFO] [stdout] | [INFO] [stdout] 20 | fn vector_is_prime(num: u64, p: &Vec) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/ownership/ex3.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/ownership/ex4.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `test` is never used [INFO] [stdout] --> src/ownership/ex4.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn test(a: &mut Vec) -> (Vec, i32) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `School` is never constructed [INFO] [stdout] --> src/complex/ex1.rs:82:12 [INFO] [stdout] | [INFO] [stdout] 82 | pub struct School { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `add`, `grades`, and `grade` are never used [INFO] [stdout] --> src/complex/ex1.rs:87:12 [INFO] [stdout] | [INFO] [stdout] 86 | impl School { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 87 | pub fn new() -> School { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 93 | pub fn add(&mut self, grade: u32, student: &str) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 97 | pub fn grades(&self) -> Vec { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 106 | pub fn grade(&self, grade: u32) -> Vec { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/complex/ex1.rs:119:8 [INFO] [stdout] | [INFO] [stdout] 119 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `StrDisplayable` is never constructed [INFO] [stdout] --> src/trait_life/ex2.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct StrDisplayable<'a>(Vec<&'a str>); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/trait_life/ex2.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] running `Command { std: "docker" "inspect" "b2b9d487716493de755809f73312a54aa2c79dbd94d21c6daef86a1ed5e24a81", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b2b9d487716493de755809f73312a54aa2c79dbd94d21c6daef86a1ed5e24a81", kill_on_drop: false }` [INFO] [stdout] b2b9d487716493de755809f73312a54aa2c79dbd94d21c6daef86a1ed5e24a81