[INFO] cloning repository https://github.com/jakyle/rust-algos
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jakyle/rust-algos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakyle%2Frust-algos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakyle%2Frust-algos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7865320dda33ff4b52d9e4472ecdcffc002023bf
[INFO] testing jakyle/rust-algos against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakyle%2Frust-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/jakyle/rust-algos on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jakyle/rust-algos
[INFO] finished tweaking git repo https://github.com/jakyle/rust-algos
[INFO] tweaked toml for git repo https://github.com/jakyle/rust-algos written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/jakyle/rust-algos already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bfa8c22bed4339e0f000ceb721ec317f8f1ada75e19de2ee5c4faf66b7887b6
[INFO] running `Command { std: "docker" "start" "-a" "3bfa8c22bed4339e0f000ceb721ec317f8f1ada75e19de2ee5c4faf66b7887b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bfa8c22bed4339e0f000ceb721ec317f8f1ada75e19de2ee5c4faf66b7887b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bfa8c22bed4339e0f000ceb721ec317f8f1ada75e19de2ee5c4faf66b7887b6", kill_on_drop: false }`
[INFO] [stdout] 3bfa8c22bed4339e0f000ceb721ec317f8f1ada75e19de2ee5c4faf66b7887b6
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11657e18340caa6a8e511e2442c8ed57cdda2deba869d4935f903d115bd38087
[INFO] running `Command { std: "docker" "start" "-a" "11657e18340caa6a8e511e2442c8ed57cdda2deba869d4935f903d115bd38087", kill_on_drop: false }`
[INFO] [stderr]    Compiling algos v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `is_braces_balanced`
[INFO] [stdout]  --> src/balanced_braces.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn is_braces_balanced(braces: &str) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `max_number_of_balloons`
[INFO] [stdout]  --> src/number_of_baloons.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn max_number_of_balloons(s: String) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `two_sum`
[INFO] [stdout]  --> src/two_sum.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `reverse`
[INFO] [stdout]  --> src/reverse_integer.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn reverse(x: i32) -> i32 {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_numbers`
[INFO] [stdout]  --> src/find_numbers_with_even_digits.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn find_numbers(x: Vec<i32>) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_kth_largest`
[INFO] [stdout]  --> src/find_kth_largest.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn find_kth_largest(nums: Vec<i32>, k: i32) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `top_k_frequent`
[INFO] [stdout]  --> src/top_k_frequent_elements.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn top_k_frequent(nums: Vec<i32>, k: i32) -> Vec<i32> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "11657e18340caa6a8e511e2442c8ed57cdda2deba869d4935f903d115bd38087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11657e18340caa6a8e511e2442c8ed57cdda2deba869d4935f903d115bd38087", kill_on_drop: false }`
[INFO] [stdout] 11657e18340caa6a8e511e2442c8ed57cdda2deba869d4935f903d115bd38087
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de4e27121bf8e1ac8ba64f389a6b59df105df75c3017aece88e4481251dff613
[INFO] running `Command { std: "docker" "start" "-a" "de4e27121bf8e1ac8ba64f389a6b59df105df75c3017aece88e4481251dff613", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling algos v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/balanced_braces.rs:44:25
[INFO] [stdout]    |
[INFO] [stdout] 44 |         assert!(result, true);
[INFO] [stdout]    |                         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 44 |         assert!(result, "{}", true);
[INFO] [stdout]    |                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "de4e27121bf8e1ac8ba64f389a6b59df105df75c3017aece88e4481251dff613", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de4e27121bf8e1ac8ba64f389a6b59df105df75c3017aece88e4481251dff613", kill_on_drop: false }`
[INFO] [stdout] de4e27121bf8e1ac8ba64f389a6b59df105df75c3017aece88e4481251dff613
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 06f19a9763510597c7ce927c91394d2ebb454198be8761cdcc0d70e44f6337bf
[INFO] running `Command { std: "docker" "start" "-a" "06f19a9763510597c7ce927c91394d2ebb454198be8761cdcc0d70e44f6337bf", kill_on_drop: false }`
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/balanced_braces.rs:44:25
[INFO] [stderr]    |
[INFO] [stderr] 44 |         assert!(result, true);
[INFO] [stderr]    |                         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]    |
[INFO] [stderr] 44 |         assert!(result, "{}", true);
[INFO] [stderr]    |                         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/algos-6b9470259a1a74c7)
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test balanced_braces::stack_tests::braces_len_odd_not_balanced ... ok
[INFO] [stdout] test number_of_baloons::baloons_tests::has_two_baloons ... ok
[INFO] [stdout] test reverse_integer::reverse_integer_tests::number_reverses_complex ... ok
[INFO] [stdout] test balanced_braces::stack_tests::simple_braces_not_balanced ... ok
[INFO] [stdout] test word_occurances::word_occurances_test::match_just_word ... ok
[INFO] [stdout] test reverse_integer::reverse_integer_tests::number_reverses ... ok
[INFO] [stdout] test two_sum::two_sum_tests::nums_add_up_helix_example ... ok
[INFO] [stdout] test word_occurances::word_occurances_test::no_match_word ... ok
[INFO] [stdout] test word_occurances::word_occurances_test::no_match_just_uneven_word ... ok
[INFO] [stdout] test number_of_baloons::baloons_tests::has_three_baloons ... ok
[INFO] [stdout] test balanced_braces::stack_tests::nested_braces_not_balanced ... ok
[INFO] [stdout] test number_of_baloons::baloons_tests::matches_ten ... ok
[INFO] [stdout] test two_sum::two_sum_tests::nums_add_up_leet_example ... ok
[INFO] [stdout] test number_of_baloons::baloons_tests::no_matches ... ok
[INFO] [stdout] test top_k_frequent_elements::top_k_frequent::one_entry ... ok
[INFO] [stdout] test balanced_braces::stack_tests::simple_braces_are_balanced ... ok
[INFO] [stdout] test find_kth_largest::find_kth_largest_test::find_fourth_largest ... ok
[INFO] [stdout] test find_kth_largest::find_kth_largest_test::find_second_largest ... ok
[INFO] [stdout] test top_k_frequent_elements::top_k_frequent::top_2_frequent ... ok
[INFO] [stdout] test reverse_integer::reverse_integer_tests::negative_numbers ... ok
[INFO] [stdout] test number_of_baloons::baloons_tests::scrambled_baloons ... ok
[INFO] [stdout] test two_sum::two_sum_tests::nums_add_up ... ok
[INFO] [stdout] test word_occurances::word_occurances_test::baloons_test ... ok
[INFO] [stdout] test word_occurances::word_occurances_test::match_two_words ... ok
[INFO] [stdout] test find_numbers_with_even_digits::find_numbers_with_even_digits_tests::two_even_digits ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 25 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "06f19a9763510597c7ce927c91394d2ebb454198be8761cdcc0d70e44f6337bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06f19a9763510597c7ce927c91394d2ebb454198be8761cdcc0d70e44f6337bf", kill_on_drop: false }`
[INFO] [stdout] 06f19a9763510597c7ce927c91394d2ebb454198be8761cdcc0d70e44f6337bf