[INFO] cloning repository https://github.com/ciuncan/hackerrank-solutions
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ciuncan/hackerrank-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fciuncan%2Fhackerrank-solutions", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fciuncan%2Fhackerrank-solutions'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dea775eb9113286f0ccbc4361c27acc5af9a483e
[INFO] testing ciuncan/hackerrank-solutions against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fciuncan%2Fhackerrank-solutions" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ciuncan/hackerrank-solutions on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ciuncan/hackerrank-solutions
[INFO] finished tweaking git repo https://github.com/ciuncan/hackerrank-solutions
[INFO] tweaked toml for git repo https://github.com/ciuncan/hackerrank-solutions written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/ciuncan/hackerrank-solutions already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ee4d8c39637aea0ced98f455de7adf6f01eed335133e9ee37519f78e83fafdb
[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" "1ee4d8c39637aea0ced98f455de7adf6f01eed335133e9ee37519f78e83fafdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ee4d8c39637aea0ced98f455de7adf6f01eed335133e9ee37519f78e83fafdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ee4d8c39637aea0ced98f455de7adf6f01eed335133e9ee37519f78e83fafdb", kill_on_drop: false }`
[INFO] [stdout] 1ee4d8c39637aea0ced98f455de7adf6f01eed335133e9ee37519f78e83fafdb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6bdc55c7086631990e55d0c2bcd97a9c111c2aeef7b87b0af1432e77a3042093
[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" "6bdc55c7086631990e55d0c2bcd97a9c111c2aeef7b87b0af1432e77a3042093", kill_on_drop: false }`
[INFO] [stderr]    Compiling hackerrank-solutions v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "6bdc55c7086631990e55d0c2bcd97a9c111c2aeef7b87b0af1432e77a3042093", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bdc55c7086631990e55d0c2bcd97a9c111c2aeef7b87b0af1432e77a3042093", kill_on_drop: false }`
[INFO] [stdout] 6bdc55c7086631990e55d0c2bcd97a9c111c2aeef7b87b0af1432e77a3042093
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7da5a32dbc2bace19400fdc95676e2020ce28ef9794607f9fb79db1a85da6d04
[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" "7da5a32dbc2bace19400fdc95676e2020ce28ef9794607f9fb79db1a85da6d04", kill_on_drop: false }`
[INFO] [stderr]    Compiling hackerrank-solutions v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "7da5a32dbc2bace19400fdc95676e2020ce28ef9794607f9fb79db1a85da6d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7da5a32dbc2bace19400fdc95676e2020ce28ef9794607f9fb79db1a85da6d04", kill_on_drop: false }`
[INFO] [stdout] 7da5a32dbc2bace19400fdc95676e2020ce28ef9794607f9fb79db1a85da6d04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 748a9c08a85ad155a8b6031cd8c9e2836184fc7f507ef1d637daac0848736dec
[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" "748a9c08a85ad155a8b6031cd8c9e2836184fc7f507ef1d637daac0848736dec", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hackerrank_solutions-e66993e862d9bf6a
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hackerrank_solutions-15418c35c9f1f50f
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test arrays::left_rotation::tests::sample_case ... ok
[INFO] [stdout] test arrays::minimum_swaps_two::tests::minimum_swap_count_sample1 ... ok
[INFO] [stdout] test arrays::minimum_swaps_two::tests::minimum_swap_count_sample2 ... ok
[INFO] [stdout] test arrays::new_year_chaos::tests::min_bribe_count_empty ... ok
[INFO] [stdout] test arrays::new_year_chaos::tests::min_bribe_count_ordered ... ok
[INFO] [stdout] test arrays::new_year_chaos::tests::min_bribe_count_sample ... ok
[INFO] [stdout] test arrays::new_year_chaos::tests::min_bribe_count_single_bribe ... ok
[INFO] [stdout] test arrays::new_year_chaos::tests::min_bribe_count_too_chaotic ... ok
[INFO] [stdout] test arrays::two_d_array::tests::matrix_hourglass_sample1 ... ok
[INFO] [stdout] test warmup_challenges::counting_valleys::tests::walk_valley_count_single ... ok
[INFO] [stdout] test arrays::two_d_array::tests::matrix_hourglass_sample2 ... ok
[INFO] [stdout] test warmup_challenges::counting_valleys::tests::walk_with_2_steps_should_create_initial_state ... ok
[INFO] [stdout] test arrays::two_d_array::tests::matrix_hourglass_simple ... ok
[INFO] [stdout] test warmup_challenges::counting_valleys::tests::walk_with_less_than_2_steps_produce_empty ... ok
[INFO] [stdout] test warmup_challenges::counting_valleys::tests::walk_with_series_of_directions ... ok
[INFO] [stdout] test warmup_challenges::counting_valleys::tests::walk_without_steps_produce_empty ... ok
[INFO] [stdout] test other::tree_arrangement::test::test_input_421 ... ok
[INFO] [stdout] test warmup_challenges::jumping_on_the_clouds::tests::cumulus_run_length ... ok
[INFO] [stdout] test warmup_challenges::jumping_on_the_clouds::tests::failed_test_case ... ok
[INFO] [stdout] test warmup_challenges::jumping_on_the_clouds::tests::min_jump_count_test ... ok
[INFO] [stdout] test warmup_challenges::jumping_on_the_clouds::tests::min_jump_required_for ... ok
[INFO] [stdout] test warmup_challenges::repeated_string::tests::first_example ... ok
[INFO] [stdout] test warmup_challenges::repeated_string::tests::second_example ... ok
[INFO] [stdout] test warmup_challenges::sock_merchant::tests::check_100_numbers_input ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hackerrank-solutions
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "748a9c08a85ad155a8b6031cd8c9e2836184fc7f507ef1d637daac0848736dec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "748a9c08a85ad155a8b6031cd8c9e2836184fc7f507ef1d637daac0848736dec", kill_on_drop: false }`
[INFO] [stdout] 748a9c08a85ad155a8b6031cd8c9e2836184fc7f507ef1d637daac0848736dec