[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 1.55.0 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-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Eimovas/algorithms_rust on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-11/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" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36ba775e33cb9cc3fc8e941ae88cf03e8253683237a586be10d6581b52f1ebdc
[INFO] running `Command { std: "docker" "start" "-a" "36ba775e33cb9cc3fc8e941ae88cf03e8253683237a586be10d6581b52f1ebdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36ba775e33cb9cc3fc8e941ae88cf03e8253683237a586be10d6581b52f1ebdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36ba775e33cb9cc3fc8e941ae88cf03e8253683237a586be10d6581b52f1ebdc", kill_on_drop: false }`
[INFO] [stdout] 36ba775e33cb9cc3fc8e941ae88cf03e8253683237a586be10d6581b52f1ebdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acb14660cffb65b48249da633effaf00d430fd790adbf2c62d843b338bc74fa9
[INFO] running `Command { std: "docker" "start" "-a" "acb14660cffb65b48249da633effaf00d430fd790adbf2c62d843b338bc74fa9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.73s
[INFO] running `Command { std: "docker" "inspect" "acb14660cffb65b48249da633effaf00d430fd790adbf2c62d843b338bc74fa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acb14660cffb65b48249da633effaf00d430fd790adbf2c62d843b338bc74fa9", kill_on_drop: false }`
[INFO] [stdout] acb14660cffb65b48249da633effaf00d430fd790adbf2c62d843b338bc74fa9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cca3db72927ba8ce7564e6fe912777bdb40372e7aa9e53c6848428d6be35b2dc
[INFO] running `Command { std: "docker" "start" "-a" "cca3db72927ba8ce7564e6fe912777bdb40372e7aa9e53c6848428d6be35b2dc", 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 0.85s
[INFO] running `Command { std: "docker" "inspect" "cca3db72927ba8ce7564e6fe912777bdb40372e7aa9e53c6848428d6be35b2dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cca3db72927ba8ce7564e6fe912777bdb40372e7aa9e53c6848428d6be35b2dc", kill_on_drop: false }`
[INFO] [stdout] cca3db72927ba8ce7564e6fe912777bdb40372e7aa9e53c6848428d6be35b2dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a0d1c087ac64f1f2cb00324203f09b5d9f869c74b72db998e99af410d7804baa
[INFO] running `Command { std: "docker" "start" "-a" "a0d1c087ac64f1f2cb00324203f09b5d9f869c74b72db998e99af410d7804baa", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]   --> src/linked_lists/list_sum.rs:59:9
[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 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/algorithms-73295d80c77969e0)
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[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_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::encoding::tests::given_string_when_empty_then_return_empty ... ok
[INFO] [stdout] test array_string::encoding::tests::given_string_when_single_letter_then_return_original ... ok
[INFO] [stdout] test array_string::matrix_rotation::tests::given_matrix_when_small_then_return_valid ... 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_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::string_rotation::tests::given_strings_when_not_valid_rotation_then_return_false ... 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_empty_then_return_empty ... 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_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_empty_then_none ... 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_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_both_empty_then_return_empty ... ok
[INFO] [stdout] test linked_lists::list_sum::tests::given_lists_when_first_is_empty_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] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a0d1c087ac64f1f2cb00324203f09b5d9f869c74b72db998e99af410d7804baa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0d1c087ac64f1f2cb00324203f09b5d9f869c74b72db998e99af410d7804baa", kill_on_drop: false }`
[INFO] [stdout] a0d1c087ac64f1f2cb00324203f09b5d9f869c74b72db998e99af410d7804baa