[INFO] cloning repository https://github.com/bashhack/grokking_algos [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bashhack/grokking_algos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbashhack%2Fgrokking_algos", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbashhack%2Fgrokking_algos'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fdf7b8b8fdcf9ada507d3c0d4e54e162580deb4a [INFO] testing bashhack/grokking_algos against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbashhack%2Fgrokking_algos" "/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/bashhack/grokking_algos on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/bashhack/grokking_algos [INFO] finished tweaking git repo https://github.com/bashhack/grokking_algos [INFO] tweaked toml for git repo https://github.com/bashhack/grokking_algos written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/bashhack/grokking_algos already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9deaacb82c196278b856d6978377e1feec33751ec532c837e8c2dc5048216312 [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" "9deaacb82c196278b856d6978377e1feec33751ec532c837e8c2dc5048216312", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9deaacb82c196278b856d6978377e1feec33751ec532c837e8c2dc5048216312", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9deaacb82c196278b856d6978377e1feec33751ec532c837e8c2dc5048216312", kill_on_drop: false }` [INFO] [stdout] 9deaacb82c196278b856d6978377e1feec33751ec532c837e8c2dc5048216312 [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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 12f9b743af6c960b0af3545d8bd1e147270636d0756e044e8b8c0bea1525378e [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" "12f9b743af6c960b0af3545d8bd1e147270636d0756e044e8b8c0bea1525378e", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling grokking_algos v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function is never used: `linear_search` [INFO] [stdout] --> src/intro_to_algos/mod.rs:159:8 [INFO] [stdout] | [INFO] [stdout] 159 | pub fn linear_search(list: &[T], item: T) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `iterative_binary_search` [INFO] [stdout] --> src/intro_to_algos/mod.rs:187:8 [INFO] [stdout] | [INFO] [stdout] 187 | pub fn iterative_binary_search(list: &[T], item: T) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `recursive_binary_search` [INFO] [stdout] --> src/intro_to_algos/mod.rs:235:8 [INFO] [stdout] | [INFO] [stdout] 235 | pub fn recursive_binary_search( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `sum` [INFO] [stdout] --> src/quicksort/mod.rs:218:8 [INFO] [stdout] | [INFO] [stdout] 218 | pub fn sum(list: &[u64]) -> u64 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `count` [INFO] [stdout] --> src/quicksort/mod.rs:241:8 [INFO] [stdout] | [INFO] [stdout] 241 | pub fn count(list: &[T]) -> u64 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `find_max` [INFO] [stdout] --> src/quicksort/mod.rs:298:8 [INFO] [stdout] | [INFO] [stdout] 298 | pub fn find_max(list: &[T]) -> Option<&T> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `quick_sort` [INFO] [stdout] --> src/quicksort/mod.rs:320:8 [INFO] [stdout] | [INFO] [stdout] 320 | pub fn quick_sort(mut list: T) -> Vec [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `simple_recursive_countdown` [INFO] [stdout] --> src/recursion/mod.rs:150:8 [INFO] [stdout] | [INFO] [stdout] 150 | pub fn simple_recursive_countdown(i: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `greeter` [INFO] [stdout] --> src/recursion/mod.rs:212:8 [INFO] [stdout] | [INFO] [stdout] 212 | pub fn greeter(name: &str) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `second_greeter` [INFO] [stdout] --> src/recursion/mod.rs:220:4 [INFO] [stdout] | [INFO] [stdout] 220 | fn second_greeter(name: &str) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `bye` [INFO] [stdout] --> src/recursion/mod.rs:225:4 [INFO] [stdout] | [INFO] [stdout] 225 | fn bye() { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `factorial` [INFO] [stdout] --> src/recursion/mod.rs:244:8 [INFO] [stdout] | [INFO] [stdout] 244 | pub fn factorial(i: u64) -> u64 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `selection_sort` [INFO] [stdout] --> src/selection_sort/mod.rs:261:8 [INFO] [stdout] | [INFO] [stdout] 261 | pub fn selection_sort(list: &mut [T]) -> &mut [T] { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.07s [INFO] running `Command { std: "docker" "inspect" "12f9b743af6c960b0af3545d8bd1e147270636d0756e044e8b8c0bea1525378e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "12f9b743af6c960b0af3545d8bd1e147270636d0756e044e8b8c0bea1525378e", kill_on_drop: false }` [INFO] [stdout] 12f9b743af6c960b0af3545d8bd1e147270636d0756e044e8b8c0bea1525378e [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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a9f8c1a1c5a0f9fcbd49da01d334c7343311959d11786165c23f6a9314c30f9b [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" "a9f8c1a1c5a0f9fcbd49da01d334c7343311959d11786165c23f6a9314c30f9b", kill_on_drop: false }` [INFO] [stderr] Compiling grokking_algos v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.70s [INFO] running `Command { std: "docker" "inspect" "a9f8c1a1c5a0f9fcbd49da01d334c7343311959d11786165c23f6a9314c30f9b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a9f8c1a1c5a0f9fcbd49da01d334c7343311959d11786165c23f6a9314c30f9b", kill_on_drop: false }` [INFO] [stdout] a9f8c1a1c5a0f9fcbd49da01d334c7343311959d11786165c23f6a9314c30f9b [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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] dfce8f94e45e3b3c47e95df1b5c1efba3708e29c9292525e54d50f7db8c6e473 [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" "dfce8f94e45e3b3c47e95df1b5c1efba3708e29c9292525e54d50f7db8c6e473", kill_on_drop: false }` [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stdout] running 42 tests [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/grokking_algos-340c662bc886cc7a) [INFO] [stdout] test intro_to_algos::tests::iterative_binary_search_returns_index_at_vector_start ... ok [INFO] [stdout] test intro_to_algos::tests::iterative_binary_search_returns_none_if_element_not_found ... ok [INFO] [stdout] test intro_to_algos::tests::iterative_binary_search_returns_none_if_empty_vector ... ok [INFO] [stdout] test intro_to_algos::tests::linear_search_returns_index_at_vector_end ... ok [INFO] [stdout] test intro_to_algos::tests::linear_search_returns_none_if_element_not_found ... ok [INFO] [stdout] test intro_to_algos::tests::linear_search_returns_none_if_empty_vector ... ok [INFO] [stdout] test intro_to_algos::tests::recursive_binary_search_returns_index_at_vector_start ... ok [INFO] [stdout] test intro_to_algos::tests::recursive_binary_search_returns_none_if_element_not_found ... ok [INFO] [stdout] test intro_to_algos::tests::recursive_binary_search_returns_none_if_empty_vector ... ok [INFO] [stdout] test quicksort::tests::count_of_empty_list_returns_zero ... ok [INFO] [stdout] test quicksort::tests::count_of_non_empty_list_returns_non_zero_count_value ... ok [INFO] [stdout] test quicksort::tests::max_of_empty_list_returns_none ... ok [INFO] [stdout] test intro_to_algos::tests::recursive_binary_search_returns_index_at_vector_end ... ok [INFO] [stdout] test quicksort::tests::count_of_non_empty_list_returns_value_equal_to_builtin_len ... ok [INFO] [stdout] test quicksort::tests::max_of_empty_list_returns_value_equal_to_builtin_max ... ok [INFO] [stdout] test quicksort::tests::max_of_list_with_negative_values_returns_expected_value ... ok [INFO] [stdout] test quicksort::tests::max_of_list_returns_expected_value ... ok [INFO] [stdout] test intro_to_algos::tests::iterative_binary_search_returns_index_at_vector_end ... ok [INFO] [stdout] test quicksort::tests::max_of_list_returns_value_equal_to_builtin_max ... ok [INFO] [stdout] test quicksort::tests::quick_sort_of_four_element_list_with_str_values ... ok [INFO] [stdout] test quicksort::tests::quick_sort_of_four_element_list_with_negative_values ... ok [INFO] [stdout] test quicksort::tests::quick_sort_of_one_element_list ... ok [INFO] [stdout] test quicksort::tests::sum_of_non_empty_list_returns_value_equal_to_builtin_sum ... ok [INFO] [stdout] test recursion::tests::find_factorial_for_zero ... ok [INFO] [stdout] test quicksort::tests::quick_sort_of_repeated_values ... ok [INFO] [stdout] test recursion::tests::finds_factorial_for_input ... ok [INFO] [stdout] test recursion::tests::finds_factorial_for_max_input ... ok [INFO] [stdout] test recursion::tests::finds_factorial_for_one ... ok [INFO] [stdout] test recursion::tests::greets ... ok [INFO] [stdout] test recursion::tests::resolves_to_original_input_for_negative_input ... ok [INFO] [stdout] test recursion::tests::resolves_to_zero_for_positive_input ... ok [INFO] [stdout] test selection_sort::tests::selection_sort_handles_repeating_values ... ok [INFO] [stdout] test selection_sort::tests::selection_sort_correctly_sort_unordered_list ... ok [INFO] [stdout] test selection_sort::tests::selection_sort_returns_existing_ordered_list ... ok [INFO] [stdout] test selection_sort::tests::selection_sort_works_over_list_of_strings ... ok [INFO] [stdout] test selection_sort::tests::selection_sort_returns_none_if_provided_empty_list ... ok [INFO] [stdout] test quicksort::tests::max_of_list_with_single_value_returns_expected_value ... ok [INFO] [stdout] test intro_to_algos::tests::linear_search_returns_index_at_vector_start ... ok [INFO] [stdout] test quicksort::tests::quick_sort_of_empty_list ... ok [INFO] [stdout] test quicksort::tests::sum_of_empty_list_returns_zero ... ok [INFO] [stdout] test quicksort::tests::sum_of_non_empty_list_returns_non_zero_sum_value ... ok [INFO] [stdout] test quicksort::tests::quick_sort_of_four_element_list ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 42 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "dfce8f94e45e3b3c47e95df1b5c1efba3708e29c9292525e54d50f7db8c6e473", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dfce8f94e45e3b3c47e95df1b5c1efba3708e29c9292525e54d50f7db8c6e473", kill_on_drop: false }` [INFO] [stdout] dfce8f94e45e3b3c47e95df1b5c1efba3708e29c9292525e54d50f7db8c6e473