[INFO] cloning repository https://github.com/dilysngo/rust-bootcamp-exercises [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dilysngo/rust-bootcamp-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdilysngo%2Frust-bootcamp-exercises", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdilysngo%2Frust-bootcamp-exercises'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] de47c7975a547df9f858b921c1095a8a03577663 [INFO] checking dilysngo/rust-bootcamp-exercises/de47c7975a547df9f858b921c1095a8a03577663 against try#0d69e2d38d443a5f5bcd601fecce9431b3835c30 for pr-130531 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdilysngo%2Frust-bootcamp-exercises" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dilysngo/rust-bootcamp-exercises on toolchain 0d69e2d38d443a5f5bcd601fecce9431b3835c30 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d69e2d38d443a5f5bcd601fecce9431b3835c30" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dilysngo/rust-bootcamp-exercises [INFO] removed 0 missing tests [INFO] finished tweaking git repo https://github.com/dilysngo/rust-bootcamp-exercises [INFO] tweaked toml for git repo https://github.com/dilysngo/rust-bootcamp-exercises written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/dilysngo/rust-bootcamp-exercises 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" "+0d69e2d38d443a5f5bcd601fecce9431b3835c30" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [INFO] checking dilysngo/rust-bootcamp-exercises/de47c7975a547df9f858b921c1095a8a03577663 against try#0d69e2d38d443a5f5bcd601fecce9431b3835c30 for pr-130531 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdilysngo%2Frust-bootcamp-exercises" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dilysngo/rust-bootcamp-exercises on toolchain 0d69e2d38d443a5f5bcd601fecce9431b3835c30 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d69e2d38d443a5f5bcd601fecce9431b3835c30" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dilysngo/rust-bootcamp-exercises [INFO] removed 0 missing tests [INFO] finished tweaking git repo https://github.com/dilysngo/rust-bootcamp-exercises [INFO] tweaked toml for git repo https://github.com/dilysngo/rust-bootcamp-exercises written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/dilysngo/rust-bootcamp-exercises 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" "+0d69e2d38d443a5f5bcd601fecce9431b3835c30" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+0d69e2d38d443a5f5bcd601fecce9431b3835c30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8f68351b3df050f773274ebb2f5395e8649c270b5b2bb4bd3bf029926b46dfb1 [INFO] running `Command { std: "docker" "start" "-a" "8f68351b3df050f773274ebb2f5395e8649c270b5b2bb4bd3bf029926b46dfb1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8f68351b3df050f773274ebb2f5395e8649c270b5b2bb4bd3bf029926b46dfb1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8f68351b3df050f773274ebb2f5395e8649c270b5b2bb4bd3bf029926b46dfb1", kill_on_drop: false }` [INFO] [stdout] 8f68351b3df050f773274ebb2f5395e8649c270b5b2bb4bd3bf029926b46dfb1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+0d69e2d38d443a5f5bcd601fecce9431b3835c30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 19bdb37a5b82f2cd9e9866d19d4863eccceae1aa76843a7e7bc56f614a16a70f [INFO] running `Command { std: "docker" "start" "-a" "19bdb37a5b82f2cd9e9866d19d4863eccceae1aa76843a7e7bc56f614a16a70f", kill_on_drop: false }` [INFO] [stderr] Checking Rust-Bootcamp-2023 v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking basic-of-rust v0.1.0 (/opt/rustwide/workdir/exercises/basic-of-rust) [INFO] [stdout] warning: unused import: `core::num` [INFO] [stdout] --> exercises/basic-of-rust/src/functions.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use core::num; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `core::num` [INFO] [stdout] --> exercises/basic-of-rust/src/functions.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use core::num; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `core::num` [INFO] [stdout] --> exercises/basic-of-rust/src/functions.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use core::num; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> exercises/basic-of-rust/src/strings.rs:39:9 [INFO] [stdout] | [INFO] [stdout] 39 | let mut old_word: &str = word; [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] --> exercises/basic-of-rust/src/strings.rs:39:9 [INFO] [stdout] | [INFO] [stdout] 39 | let mut old_word: &str = word; [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 `bigger` is never used [INFO] [stdout] --> exercises/basic-of-rust/src/conditions.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn bigger(a: i32, b: i32) -> i32 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `check_number` is never used [INFO] [stdout] --> exercises/basic-of-rust/src/conditions.rs:19:4 [INFO] [stdout] | [INFO] [stdout] 19 | fn check_number(number: i32) -> &'static str { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `foo_if_fizz` is never used [INFO] [stdout] --> exercises/basic-of-rust/src/conditions.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn foo_if_fizz(fizzish: &str) -> &str { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `is_leap_year` is never used [INFO] [stdout] --> exercises/basic-of-rust/src/conditions.rs:44:4 [INFO] [stdout] | [INFO] [stdout] 44 | fn is_leap_year(year: i32) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `factorial` is never used [INFO] [stdout] --> exercises/basic-of-rust/src/conditions.rs:52:4 [INFO] [stdout] | [INFO] [stdout] 52 | fn factorial(n: u32) -> u32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `is_prime` is never used [INFO] [stdout] --> exercises/basic-of-rust/src/conditions.rs:64:4 [INFO] [stdout] | [INFO] [stdout] 64 | fn is_prime(n: u32) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `exercise2` is never used [INFO] [stdout] --> exercises/basic-of-rust/src/strings.rs:10:4 [INFO] [stdout] | [INFO] [stdout] 10 | fn exercise2() -> String { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `exercise3` is never used [INFO] [stdout] --> exercises/basic-of-rust/src/strings.rs:19:4 [INFO] [stdout] | [INFO] [stdout] 19 | fn exercise3() -> String { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `reverse_string` is never used [INFO] [stdout] --> exercises/basic-of-rust/src/strings.rs:29:4 [INFO] [stdout] | [INFO] [stdout] 29 | fn reverse_string(input: &str) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `is_palindrome` is never used [INFO] [stdout] --> exercises/basic-of-rust/src/strings.rs:37:4 [INFO] [stdout] | [INFO] [stdout] 37 | fn is_palindrome(word: &str) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `count_char_occurrences` is never used [INFO] [stdout] --> exercises/basic-of-rust/src/strings.rs:47:4 [INFO] [stdout] | [INFO] [stdout] 47 | fn count_char_occurrences(string: &str, ch: char) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sum` is never used [INFO] [stdout] --> exercises/basic-of-rust/src/functions.rs:5:4 [INFO] [stdout] | [INFO] [stdout] 5 | fn sum(x: i32, y: i32) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sum_one_to_n` is never used [INFO] [stdout] --> exercises/basic-of-rust/src/functions.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn sum_one_to_n(n: u32) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `calculate_average` is never used [INFO] [stdout] --> exercises/basic-of-rust/src/functions.rs:28:4 [INFO] [stdout] | [INFO] [stdout] 28 | fn calculate_average(numbers: &[f64]) -> f64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sum_even_numbers` is never used [INFO] [stdout] --> exercises/basic-of-rust/src/functions.rs:47:4 [INFO] [stdout] | [INFO] [stdout] 47 | fn sum_even_numbers(numbers: &[i32]) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 17 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> exercises/basic-of-rust/src/strings.rs:39:9 [INFO] [stdout] | [INFO] [stdout] 39 | let mut old_word: &str = word; [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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s [INFO] running `Command { std: "docker" "inspect" "19bdb37a5b82f2cd9e9866d19d4863eccceae1aa76843a7e7bc56f614a16a70f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "19bdb37a5b82f2cd9e9866d19d4863eccceae1aa76843a7e7bc56f614a16a70f", kill_on_drop: false }` [INFO] [stdout] 19bdb37a5b82f2cd9e9866d19d4863eccceae1aa76843a7e7bc56f614a16a70f