[INFO] updating cached repository https://github.com/clD11/rust-katas [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2c92c5c8c675ac2054d3a84dc7ce4d67085fe3c0 [INFO] testing clD11/rust-katas against beta-2020-07-24 for beta-1.46-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FclD11%2Frust-katas" "/workspace/builds/worker-5/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/clD11/rust-katas on toolchain beta-2020-07-24 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/clD11/rust-katas [INFO] finished tweaking git repo https://github.com/clD11/rust-katas [INFO] tweaked toml for git repo https://github.com/clD11/rust-katas written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/clD11/rust-katas already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b766e0bd384260e2d662d146e1cca6aaf98e9e48d3d96830f98c3969c1f8dcbc [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" "b766e0bd384260e2d662d146e1cca6aaf98e9e48d3d96830f98c3969c1f8dcbc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b766e0bd384260e2d662d146e1cca6aaf98e9e48d3d96830f98c3969c1f8dcbc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b766e0bd384260e2d662d146e1cca6aaf98e9e48d3d96830f98c3969c1f8dcbc", kill_on_drop: false }` [INFO] [stdout] b766e0bd384260e2d662d146e1cca6aaf98e9e48d3d96830f98c3969c1f8dcbc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] de4d0304be7a5d95903987dbadcc73901bf0f22114d17f55474b7dd4bcea4584 [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" "de4d0304be7a5d95903987dbadcc73901bf0f22114d17f55474b7dd4bcea4584", kill_on_drop: false }` [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling rust-katas v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::string::String` [INFO] [stdout] --> src/rust_book/slice.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::string::String; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `cat_and_mouse` [INFO] [stdout] --> src/hackerrank/problem_solving/cat_mouse.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn cat_and_mouse(x: i32, y: i32, z: i32) -> &'static str { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `divisible_sum_pairs` [INFO] [stdout] --> src/hackerrank/problem_solving/divisible_sum_pairs.rs:1:9 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn divisible_sum_pairs(n: usize, k: u32, ar: &[u32]) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `sum` [INFO] [stdout] --> src/hackerrank/problem_solving/distinct_pairs.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn sum(nums: &[u32], target: u32) -> u32 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `to_roman_numeral` [INFO] [stdout] --> src/hackerrank/problem_solving/number_converter.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | pub fn to_roman_numeral(number: u32) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `IpAddrKind` [INFO] [stdout] --> src/rust_book/defining_enums.rs:1:6 [INFO] [stdout] | [INFO] [stdout] 1 | enum IpAddrKind { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `guess` [INFO] [stdout] --> src/rust_book/guessing_game.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn guess() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `square` [INFO] [stdout] --> src/rust_book/rectangle.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | fn square(d: i32) -> Rectangle { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `area` [INFO] [stdout] --> src/rust_book/rectangle.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | fn area(&self) -> i32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `can_hold` [INFO] [stdout] --> src/rust_book/rectangle.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | fn can_hold(&self, rectangle: &Rectangle) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `find_first_word` [INFO] [stdout] --> src/rust_book/slice.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | pub fn find_first_word(s: &str) -> &str { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.79s [INFO] running `Command { std: "docker" "inspect" "de4d0304be7a5d95903987dbadcc73901bf0f22114d17f55474b7dd4bcea4584", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de4d0304be7a5d95903987dbadcc73901bf0f22114d17f55474b7dd4bcea4584", kill_on_drop: false }` [INFO] [stdout] de4d0304be7a5d95903987dbadcc73901bf0f22114d17f55474b7dd4bcea4584 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e0e42994d5efdd7980356bcad2f99c833d04d3b50d169e5df9ffc49aeabb039c [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" "e0e42994d5efdd7980356bcad2f99c833d04d3b50d169e5df9ffc49aeabb039c", kill_on_drop: false }` [INFO] [stderr] Compiling rust-katas v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: irrefutable if-let pattern [INFO] [stdout] --> src/rust_book/defining_enums.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | / if let IpAddrKind::V4(actual) = V4 { [INFO] [stdout] 10 | | assert_eq!(actual, expected); [INFO] [stdout] 11 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(irrefutable_let_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `guess` [INFO] [stdout] --> src/rust_book/guessing_game.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn guess() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `test_V4` should have a snake case name [INFO] [stdout] --> src/rust_book/defining_enums.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn test_V4() { [INFO] [stdout] | ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `test_v4` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `V4` should have a snake case name [INFO] [stdout] --> src/rust_book/defining_enums.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let V4 = IpAddrKind::V4(String::from("127.0.0.1")); [INFO] [stdout] | ^^ help: convert the identifier to snake case (notice the capitalization): `v4` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.85s [INFO] running `Command { std: "docker" "inspect" "e0e42994d5efdd7980356bcad2f99c833d04d3b50d169e5df9ffc49aeabb039c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e0e42994d5efdd7980356bcad2f99c833d04d3b50d169e5df9ffc49aeabb039c", kill_on_drop: false }` [INFO] [stdout] e0e42994d5efdd7980356bcad2f99c833d04d3b50d169e5df9ffc49aeabb039c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 22c95f5caac32c68da4bb9ce2d5bcf99b29c144789440265f68ff0532d5989bc [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" "22c95f5caac32c68da4bb9ce2d5bcf99b29c144789440265f68ff0532d5989bc", kill_on_drop: false }` [INFO] [stderr] warning: irrefutable if-let pattern [INFO] [stderr] --> src/rust_book/defining_enums.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | / if let IpAddrKind::V4(actual) = V4 { [INFO] [stderr] 10 | | assert_eq!(actual, expected); [INFO] [stderr] 11 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(irrefutable_let_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `guess` [INFO] [stderr] --> src/rust_book/guessing_game.rs:5:8 [INFO] [stderr] | [INFO] [stderr] 5 | pub fn guess() { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function `test_V4` should have a snake case name [INFO] [stderr] --> src/rust_book/defining_enums.rs:6:4 [INFO] [stderr] | [INFO] [stderr] 6 | fn test_V4() { [INFO] [stderr] | ^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `test_v4` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `V4` should have a snake case name [INFO] [stderr] --> src/rust_book/defining_enums.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | let V4 = IpAddrKind::V4(String::from("127.0.0.1")); [INFO] [stderr] | ^^ help: convert the identifier to snake case (notice the capitalization): `v4` [INFO] [stderr] [INFO] [stderr] warning: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stdout] [INFO] [stdout] running 16 tests [INFO] [stdout] test hackerrank::problem_solving::cat_mouse::should_return_cat_b_catches_mouse ... ok [INFO] [stdout] test rust_book::slice::should_return_first_word ... ok [INFO] [stdout] test rust_book::rectangle::can_hold ... ok [INFO] [stderr] Running /opt/rustwide/target/debug/deps/rust_katas-dd7f810c3206e2b5 [INFO] [stdout] test hackerrank::problem_solving::distinct_pairs::should_return_distinct_pairs_2 ... ok [INFO] [stdout] test hackerrank::problem_solving::number_converter::should_convert_normal_numbers_to_roman_numerals_iv ... ok [INFO] [stdout] test hackerrank::problem_solving::number_converter::should_convert_normal_numbers_to_roman_numerals_cmlxxxviii ... ok [INFO] [stdout] test rust_book::rectangle::create_square ... ok [INFO] [stdout] test hackerrank::problem_solving::number_converter::should_convert_normal_numbers_to_roman_numerals_xi ... ok [INFO] [stdout] test rust_book::slice::should_return_whole_string ... ok [INFO] [stdout] test hackerrank::problem_solving::number_converter::should_convert_normal_numbers_to_roman_numerals_i ... ok [INFO] [stdout] test rust_book::defining_enums::test_V4 ... ok [INFO] [stdout] test hackerrank::problem_solving::divisible_sum_pairs::should_return_number_of_divisible_sum_pairs ... ok [INFO] [stdout] test hackerrank::problem_solving::cat_mouse::should_return_cat_a_catches_mouse ... ok [INFO] [stdout] test rust_book::rectangle::calculate_area ... ok [INFO] [stdout] test hackerrank::problem_solving::distinct_pairs::should_return_distinct_pairs_1 ... ok [INFO] [stdout] test hackerrank::problem_solving::cat_mouse::should_return_mouse_escapes ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "22c95f5caac32c68da4bb9ce2d5bcf99b29c144789440265f68ff0532d5989bc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "22c95f5caac32c68da4bb9ce2d5bcf99b29c144789440265f68ff0532d5989bc", kill_on_drop: false }` [INFO] [stdout] 22c95f5caac32c68da4bb9ce2d5bcf99b29c144789440265f68ff0532d5989bc