[INFO] cloning repository https://github.com/ryands17/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/ryands17/algorithms-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryands17%2Falgorithms-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryands17%2Falgorithms-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 80f6e2a25314fc79edab0a2237ea01853137f6f2
[INFO] testing ryands17/algorithms-rust against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryands17%2Falgorithms-rust" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryands17/algorithms-rust 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/ryands17/algorithms-rust
[INFO] finished tweaking git repo https://github.com/ryands17/algorithms-rust
[INFO] tweaked toml for git repo https://github.com/ryands17/algorithms-rust written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/ryands17/algorithms-rust 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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd749dba404d3854bb8192ae7e0233861f7921ffc79bb26d1bb23e0a2d5c5e45
[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" "fd749dba404d3854bb8192ae7e0233861f7921ffc79bb26d1bb23e0a2d5c5e45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd749dba404d3854bb8192ae7e0233861f7921ffc79bb26d1bb23e0a2d5c5e45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd749dba404d3854bb8192ae7e0233861f7921ffc79bb26d1bb23e0a2d5c5e45", kill_on_drop: false }`
[INFO] [stdout] fd749dba404d3854bb8192ae7e0233861f7921ffc79bb26d1bb23e0a2d5c5e45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83f51e4a3cf78f9d41637f18d998b9b9ed8670b5fa326588ab3544b617e1553a
[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" "83f51e4a3cf78f9d41637f18d998b9b9ed8670b5fa326588ab3544b617e1553a", kill_on_drop: false }`
[INFO] [stderr]    Compiling algorithms-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `Command { std: "docker" "inspect" "83f51e4a3cf78f9d41637f18d998b9b9ed8670b5fa326588ab3544b617e1553a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83f51e4a3cf78f9d41637f18d998b9b9ed8670b5fa326588ab3544b617e1553a", kill_on_drop: false }`
[INFO] [stdout] 83f51e4a3cf78f9d41637f18d998b9b9ed8670b5fa326588ab3544b617e1553a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 658f767494068f9f4e78378c153a833f27760af70b383da305118185e35107cb
[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" "658f767494068f9f4e78378c153a833f27760af70b383da305118185e35107cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling algorithms-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.43s
[INFO] running `Command { std: "docker" "inspect" "658f767494068f9f4e78378c153a833f27760af70b383da305118185e35107cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "658f767494068f9f4e78378c153a833f27760af70b383da305118185e35107cb", kill_on_drop: false }`
[INFO] [stdout] 658f767494068f9f4e78378c153a833f27760af70b383da305118185e35107cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 05a3ef420d94c46a11f9247f99fe371d404ed68bcf0b23002cc0ce8e7cd961a9
[INFO] running `Command { std: "docker" "start" "-a" "05a3ef420d94c46a11f9247f99fe371d404ed68bcf0b23002cc0ce8e7cd961a9", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test algorithms::anagram::tests::is_an_anagram ... ok
[INFO] [stdout] test algorithms::anagram::tests::is_not_an_anagram ... ok
[INFO] [stdout] test algorithms::capitalize::tests::capitalize_words ... ok
[INFO] [stdout] test algorithms::chunks::tests::chunk_basic ... ok
[INFO] [stdout] test algorithms::chunks::tests::chunk_size_greater_than_vec ... ok
[INFO] [stdout] test algorithms::collatz::tests::gets_correct_steps_for_an_odd_number ... ok
[INFO] [stdout] test algorithms::matrix::tests::works_on_square_matrices ... ok
[INFO] [stdout] test algorithms::matrix::tests::works_on_rectangular_matrices ... ok
[INFO] [stdout] test algorithms::reverse_uint::tests::reverse_single_integer ... ok
[INFO] [stdout] test algorithms::stack::tests::pop_from_stack ... ok
[INFO] [stdout] test algorithms::stack::tests::push_to_stack ... ok
[INFO] [stdout] test algorithms::sum_of_two::tests::sum_of_two_doesnt_match ... ok
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/algorithms_rust-ead0887919125c05
[INFO] [stdout] test algorithms::max_chars::tests::max_single_char ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/algorithms_rust-26e1160011c69711
[INFO] [stdout] test algorithms::palindrome::tests::should_be_palindrome ... ok
[INFO] [stdout] test algorithms::collatz::tests::gets_correct_steps_for_an_even_number ... ok
[INFO] [stdout] test algorithms::palindrome::tests::should_not_be_palindrome ... ok
[INFO] [stdout] test algorithms::sum_of_two::tests::sum_of_two_matches ... ok
[INFO] [stdout] test algorithms::vowels::tests::count_uppercase ... ok
[INFO] [stdout] test algorithms::vowels::tests::counts_vowels ... ok
[INFO] [stdout] test algorithms::max_chars::tests::max_char_long_str ... ok
[INFO] [stdout] test algorithms::reverse_string::tests::should_reverse_string ... ok
[INFO] [stdout] test algorithms::vowels::tests::no_match ... ok
[INFO] [stdout] test algorithms::reverse_uint::tests::reverse_large_integer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests algorithms-rust
[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" "05a3ef420d94c46a11f9247f99fe371d404ed68bcf0b23002cc0ce8e7cd961a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05a3ef420d94c46a11f9247f99fe371d404ed68bcf0b23002cc0ce8e7cd961a9", kill_on_drop: false }`
[INFO] [stdout] 05a3ef420d94c46a11f9247f99fe371d404ed68bcf0b23002cc0ce8e7cd961a9