[INFO] cloning repository https://github.com/yu-hasebe/leetcode_problems
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yu-hasebe/leetcode_problems" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyu-hasebe%2Fleetcode_problems", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyu-hasebe%2Fleetcode_problems'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 078bf1b3cbd154076c17e35933e0dc8537480f69
[INFO] testing yu-hasebe/leetcode_problems against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyu-hasebe%2Fleetcode_problems" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yu-hasebe/leetcode_problems on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yu-hasebe/leetcode_problems
[INFO] finished tweaking git repo https://github.com/yu-hasebe/leetcode_problems
[INFO] tweaked toml for git repo https://github.com/yu-hasebe/leetcode_problems written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/yu-hasebe/leetcode_problems already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d2feee62c42e87d0ac87aa9b3530eba4f8a038236c196edf2eb882678ca6a22
[INFO] running `Command { std: "docker" "start" "-a" "6d2feee62c42e87d0ac87aa9b3530eba4f8a038236c196edf2eb882678ca6a22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d2feee62c42e87d0ac87aa9b3530eba4f8a038236c196edf2eb882678ca6a22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d2feee62c42e87d0ac87aa9b3530eba4f8a038236c196edf2eb882678ca6a22", kill_on_drop: false }`
[INFO] [stdout] 6d2feee62c42e87d0ac87aa9b3530eba4f8a038236c196edf2eb882678ca6a22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fef58cf92f080b0f0e3aa96b555154602620ec3d0308b416e6e638fd932fb4d
[INFO] running `Command { std: "docker" "start" "-a" "7fef58cf92f080b0f0e3aa96b555154602620ec3d0308b416e6e638fd932fb4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling leetcode_problems v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/answers/n19_remove_nth_node_from_end_of_list.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn new(val: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.78s
[INFO] running `Command { std: "docker" "inspect" "7fef58cf92f080b0f0e3aa96b555154602620ec3d0308b416e6e638fd932fb4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fef58cf92f080b0f0e3aa96b555154602620ec3d0308b416e6e638fd932fb4d", kill_on_drop: false }`
[INFO] [stdout] 7fef58cf92f080b0f0e3aa96b555154602620ec3d0308b416e6e638fd932fb4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7662f55bb342646c6833957b2e4c876a7080ca0a8d6658de16bbb5cd75a8f4e
[INFO] running `Command { std: "docker" "start" "-a" "a7662f55bb342646c6833957b2e4c876a7080ca0a8d6658de16bbb5cd75a8f4e", kill_on_drop: false }`
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/answers/n19_remove_nth_node_from_end_of_list.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn new(val: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling leetcode_problems v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 24.46s
[INFO] running `Command { std: "docker" "inspect" "a7662f55bb342646c6833957b2e4c876a7080ca0a8d6658de16bbb5cd75a8f4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7662f55bb342646c6833957b2e4c876a7080ca0a8d6658de16bbb5cd75a8f4e", kill_on_drop: false }`
[INFO] [stdout] a7662f55bb342646c6833957b2e4c876a7080ca0a8d6658de16bbb5cd75a8f4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b0339f5fb04847c0e5903e1fe7d5add3f0586cf19f2cf085e82b8141f7360fab
[INFO] running `Command { std: "docker" "start" "-a" "b0339f5fb04847c0e5903e1fe7d5add3f0586cf19f2cf085e82b8141f7360fab", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/answers/n19_remove_nth_node_from_end_of_list.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn new(val: i32) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `leetcode_problems` (lib) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/leetcode_problems-789e8db998ffa183)
[INFO] [stdout] running 15 tests
[INFO] [stderr]    Doc-tests leetcode_problems
[INFO] [stdout] test answers::n11_container_with_most_water::tests::test_max_area ... ok
[INFO] [stdout] test answers::n17_letter_combinations_of_a_phone_number::tests::test_letter_combinations ... ok
[INFO] [stdout] test answers::n15_3sum::tests::test_three_sum ... ok
[INFO] [stdout] test answers::n19_remove_nth_node_from_end_of_list::tests::test_remove_nth_from_end ... ok
[INFO] [stdout] test answers::n19_remove_nth_node_from_end_of_list::tests::test_remove_nth_from_end_2 ... ok
[INFO] [stdout] test answers::n20_valid_parentheses::tests::test_is_valid ... ok
[INFO] [stdout] test answers::n1_two_sum::tests::test_two_sum ... ok
[INFO] [stdout] test answers::n21_merge_two_sorted_list::tests::test_merge_two_lists ... ok
[INFO] [stdout] test answers::n22_generate_parentheses::tests::test_generate_parenthesis ... ok
[INFO] [stdout] test answers::n2_add_two_numbers::tests::test_add_two_numbers ... ok
[INFO] [stdout] test answers::n33_search_in_rotated_sorted_array::tests::test_search ... ok
[INFO] [stdout] test answers::n33_search_in_rotated_sorted_array::tests::test_search2 ... ok
[INFO] [stdout] test answers::n34_find_first_and_last_position_of_element_in_sorted_array::tests::test_search_range ... ok
[INFO] [stdout] test answers::n3_longest_substring_without_repeating_characters::tests::test_length_of_longest_substring ... ok
[INFO] [stdout] test answers::n5_longest_palindromic_substring::tests::test_longest_palindrome ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b0339f5fb04847c0e5903e1fe7d5add3f0586cf19f2cf085e82b8141f7360fab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0339f5fb04847c0e5903e1fe7d5add3f0586cf19f2cf085e82b8141f7360fab", kill_on_drop: false }`
[INFO] [stdout] b0339f5fb04847c0e5903e1fe7d5add3f0586cf19f2cf085e82b8141f7360fab