[INFO] cloning repository https://github.com/Eimovas/algorithms_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Eimovas/algorithms_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEimovas%2Falgorithms_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEimovas%2Falgorithms_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 269204e082e8df72739f0669055947cc6efe5b39
[INFO] testing Eimovas/algorithms_rust against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEimovas%2Falgorithms_rust" "/workspace/builds/worker-47/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-47/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Eimovas/algorithms_rust on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Eimovas/algorithms_rust
[INFO] finished tweaking git repo https://github.com/Eimovas/algorithms_rust
[INFO] tweaked toml for git repo https://github.com/Eimovas/algorithms_rust written to /workspace/builds/worker-47/source/Cargo.toml
[INFO] crate git repo https://github.com/Eimovas/algorithms_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1aab0c9255d4cd6343cf9aa566dda8145a9923898e4f67d777f5eb03db1fca34
[INFO] running `Command { std: "docker" "start" "-a" "1aab0c9255d4cd6343cf9aa566dda8145a9923898e4f67d777f5eb03db1fca34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1aab0c9255d4cd6343cf9aa566dda8145a9923898e4f67d777f5eb03db1fca34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1aab0c9255d4cd6343cf9aa566dda8145a9923898e4f67d777f5eb03db1fca34", kill_on_drop: false }`
[INFO] [stdout] 1aab0c9255d4cd6343cf9aa566dda8145a9923898e4f67d777f5eb03db1fca34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5910e0b06c6394d343fde2812e908ccf4f728d52d4cdd28c5f30bb5477bb03f8
[INFO] running `Command { std: "docker" "start" "-a" "5910e0b06c6394d343fde2812e908ccf4f728d52d4cdd28c5f30bb5477bb03f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "5910e0b06c6394d343fde2812e908ccf4f728d52d4cdd28c5f30bb5477bb03f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5910e0b06c6394d343fde2812e908ccf4f728d52d4cdd28c5f30bb5477bb03f8", kill_on_drop: false }`
[INFO] [stdout] 5910e0b06c6394d343fde2812e908ccf4f728d52d4cdd28c5f30bb5477bb03f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 419e0d63aff83a4422dbc45dd04ccef4facb1135059b5c72b964a30c787175d9
[INFO] running `Command { std: "docker" "start" "-a" "419e0d63aff83a4422dbc45dd04ccef4facb1135059b5c72b964a30c787175d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout]   --> src/linked_lists/list_sum.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     use std::iter::FromIterator;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "419e0d63aff83a4422dbc45dd04ccef4facb1135059b5c72b964a30c787175d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "419e0d63aff83a4422dbc45dd04ccef4facb1135059b5c72b964a30c787175d9", kill_on_drop: false }`
[INFO] [stdout] 419e0d63aff83a4422dbc45dd04ccef4facb1135059b5c72b964a30c787175d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9e37eed6042d5a36dfa3ffddc7b1edd274e2c1cf05dbfcebc8fb19d277f0dda3
[INFO] running `Command { std: "docker" "start" "-a" "9e37eed6042d5a36dfa3ffddc7b1edd274e2c1cf05dbfcebc8fb19d277f0dda3", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout] 
[INFO] [stderr]   --> src/linked_lists/list_sum.rs:59:9
[INFO] [stdout] running 30 tests
[INFO] [stderr]    |
[INFO] [stderr] 59 |     use std::iter::FromIterator;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `algorithms` (bin "algorithms" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/algorithms-3dcc50cdd1f50b74)
[INFO] [stdout] test array_string::encoding::tests::given_string_when_casing_mixed_then_return_encoded ... ok
[INFO] [stdout] test array_string::encoding::tests::given_string_when_empty_then_return_empty ... ok
[INFO] [stdout] test array_string::encoding::tests::given_string_when_repeating_chars_in_back_then_return_encoded ... ok
[INFO] [stdout] test array_string::encoding::tests::given_string_when_repeating_chars_upfront_then_return_encoded ... ok
[INFO] [stdout] test array_string::matrix_rotation::tests::given_matrix_when_large_then_return_valid ... ok
[INFO] [stdout] test array_string::matrix_rotation::tests::given_matrix_when_small_then_return_valid ... ok
[INFO] [stdout] test array_string::encoding::tests::given_string_when_single_letter_then_return_original ... ok
[INFO] [stdout] test array_string::one_edit_away::tests::given_strings_when_one_insert_at_end_apart_then_true ... ok
[INFO] [stdout] test array_string::one_edit_away::tests::given_strings_when_one_replace_apart_then_true ... ok
[INFO] [stdout] test array_string::one_edit_away::tests::given_strings_when_one_insert_at_start_apart_then_true ... ok
[INFO] [stdout] test array_string::one_edit_away::tests::given_strings_when_two_edits_apart_then_false ... ok
[INFO] [stdout] test array_string::string_rotation::tests::given_strings_when_not_valid_rotation_then_return_false ... ok
[INFO] [stdout] test array_string::string_rotation::tests::given_strings_when_valid_rotation_then_return_true ... ok
[INFO] [stdout] test array_string::zero_matrix::tests::given_matrix_when_all_non_zeroes_then_return_valid ... ok
[INFO] [stdout] test array_string::zero_matrix::tests::given_matrix_when_all_zeroes_then_return_valid ... ok
[INFO] [stdout] test array_string::zero_matrix::tests::given_matrix_when_m_equals_n_then_return_valid ... ok
[INFO] [stdout] test array_string::zero_matrix::tests::given_matrix_when_empty_then_return_empty ... ok
[INFO] [stdout] test array_string::zero_matrix::tests::given_matrix_when_m_gt_n_then_return_valid ... ok
[INFO] [stdout] test array_string::zero_matrix::tests::given_matrix_when_multiple_zeroes_in_same_row_then_return_valid ... ok
[INFO] [stdout] test array_string::zero_matrix::tests::given_matrix_when_multiple_zeroes_then_return_valid ... ok
[INFO] [stdout] test array_string::zero_matrix::tests::given_matrix_when_n_gt_m_then_return_valid ... ok
[INFO] [stdout] test linked_lists::kth_last::tests::given_list_when_k_equals_list_length_then_return_head ... ok
[INFO] [stdout] test linked_lists::kth_last::tests::given_list_when_empty_then_none ... ok
[INFO] [stdout] test linked_lists::list_sum::tests::given_lists_when_first_is_empty_then_return_valid ... ok
[INFO] [stdout] test linked_lists::kth_last::tests::given_list_when_k_greater_than_length_then_none ... ok
[INFO] [stdout] test linked_lists::kth_last::tests::given_list_when_k_is_in_middle_then_return_valid ... ok
[INFO] [stdout] test linked_lists::list_sum::tests::given_lists_when_not_empty_then_return_valid ... ok
[INFO] [stdout] test linked_lists::kth_last::tests::given_list_when_k_zero_then_none ... ok
[INFO] [stdout] test linked_lists::list_sum::tests::given_lists_when_second_is_empty_then_return_valid ... ok
[INFO] [stdout] test linked_lists::list_sum::tests::given_lists_when_both_empty_then_return_empty ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9e37eed6042d5a36dfa3ffddc7b1edd274e2c1cf05dbfcebc8fb19d277f0dda3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e37eed6042d5a36dfa3ffddc7b1edd274e2c1cf05dbfcebc8fb19d277f0dda3", kill_on_drop: false }`
[INFO] [stdout] 9e37eed6042d5a36dfa3ffddc7b1edd274e2c1cf05dbfcebc8fb19d277f0dda3