[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-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEimovas%2Falgorithms_rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Eimovas/algorithms_rust on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", 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-2/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-2021-01-01" "fetch" "--locked" "--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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fc6cb684de9dd91dc686c2f2a8f9d9d62f129c0493fa4d223ca28ff16a58fd2
[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" "6fc6cb684de9dd91dc686c2f2a8f9d9d62f129c0493fa4d223ca28ff16a58fd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fc6cb684de9dd91dc686c2f2a8f9d9d62f129c0493fa4d223ca28ff16a58fd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fc6cb684de9dd91dc686c2f2a8f9d9d62f129c0493fa4d223ca28ff16a58fd2", kill_on_drop: false }`
[INFO] [stdout] 6fc6cb684de9dd91dc686c2f2a8f9d9d62f129c0493fa4d223ca28ff16a58fd2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a7e6947f3fba78f75a7fce5629ce2ff825ed7efd4f53e930f85e2888cf6a684
[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" "0a7e6947f3fba78f75a7fce5629ce2ff825ed7efd4f53e930f85e2888cf6a684", kill_on_drop: false }`
[INFO] [stderr]    Compiling algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "0a7e6947f3fba78f75a7fce5629ce2ff825ed7efd4f53e930f85e2888cf6a684", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a7e6947f3fba78f75a7fce5629ce2ff825ed7efd4f53e930f85e2888cf6a684", kill_on_drop: false }`
[INFO] [stdout] 0a7e6947f3fba78f75a7fce5629ce2ff825ed7efd4f53e930f85e2888cf6a684
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3b18c3a92e1c87b9a1da9258b7a5bfb86497ec945d41e08697fba8aba5e0428
[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" "e3b18c3a92e1c87b9a1da9258b7a5bfb86497ec945d41e08697fba8aba5e0428", 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 1.72s
[INFO] running `Command { std: "docker" "inspect" "e3b18c3a92e1c87b9a1da9258b7a5bfb86497ec945d41e08697fba8aba5e0428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3b18c3a92e1c87b9a1da9258b7a5bfb86497ec945d41e08697fba8aba5e0428", kill_on_drop: false }`
[INFO] [stdout] e3b18c3a92e1c87b9a1da9258b7a5bfb86497ec945d41e08697fba8aba5e0428
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5b173ea2512363a1264201c3fc456f70d2cfbc8439ae296d4144e295c81fa84d
[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" "5b173ea2512363a1264201c3fc456f70d2cfbc8439ae296d4144e295c81fa84d", 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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/algorithms-c213ed8676379152
[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_upfront_then_return_encoded ... 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::matrix_rotation::tests::given_matrix_when_large_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::matrix_rotation::tests::given_matrix_when_small_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::one_edit_away::tests::given_strings_when_one_insert_at_end_apart_then_true ... ok
[INFO] [stdout] test array_string::encoding::tests::given_string_when_single_letter_then_return_original ... ok
[INFO] [stdout] test linked_lists::kth_last::tests::given_list_when_k_zero_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_not_empty_then_return_valid ... ok
[INFO] [stdout] test linked_lists::list_sum::tests::given_lists_when_first_is_empty_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::list_sum::tests::given_lists_when_second_is_empty_then_return_valid ... ok
[INFO] [stdout] test array_string::encoding::tests::given_string_when_empty_then_return_empty ... ok
[INFO] [stdout] test array_string::string_rotation::tests::given_strings_when_not_valid_rotation_then_return_false ... 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_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 array_string::encoding::tests::given_string_when_repeating_chars_in_back_then_return_encoded ... 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::zero_matrix::tests::given_matrix_when_m_equals_n_then_return_valid ... ok
[INFO] [stdout] test array_string::one_edit_away::tests::given_strings_when_one_replace_apart_then_true ... 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" "5b173ea2512363a1264201c3fc456f70d2cfbc8439ae296d4144e295c81fa84d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b173ea2512363a1264201c3fc456f70d2cfbc8439ae296d4144e295c81fa84d", kill_on_drop: false }`
[INFO] [stdout] 5b173ea2512363a1264201c3fc456f70d2cfbc8439ae296d4144e295c81fa84d