[INFO] cloning repository https://github.com/kayew/twelve-problems-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kayew/twelve-problems-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkayew%2Ftwelve-problems-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkayew%2Ftwelve-problems-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3d08d29f0a745bdd9135745b41ea9e9fc7ec2a58
[INFO] testing kayew/twelve-problems-rs against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkayew%2Ftwelve-problems-rs" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kayew/twelve-problems-rs on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kayew/twelve-problems-rs
[INFO] finished tweaking git repo https://github.com/kayew/twelve-problems-rs
[INFO] tweaked toml for git repo https://github.com/kayew/twelve-problems-rs written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/kayew/twelve-problems-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", 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] f7828376a55a6ac966b16e177509bfbdb7ff2203d1f6b95c47f208afc822f12c
[INFO] running `Command { std: "docker" "start" "-a" "f7828376a55a6ac966b16e177509bfbdb7ff2203d1f6b95c47f208afc822f12c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7828376a55a6ac966b16e177509bfbdb7ff2203d1f6b95c47f208afc822f12c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7828376a55a6ac966b16e177509bfbdb7ff2203d1f6b95c47f208afc822f12c", kill_on_drop: false }`
[INFO] [stdout] f7828376a55a6ac966b16e177509bfbdb7ff2203d1f6b95c47f208afc822f12c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99e27ade32ef54a847209ab448a2481427af86b127d005799578f41fe6b2183b
[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" "99e27ade32ef54a847209ab448a2481427af86b127d005799578f41fe6b2183b", kill_on_drop: false }`
[INFO] [stderr]    Compiling twelve_problems_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `double_double`
[INFO] [stdout]    --> src/lib.rs:135:8
[INFO] [stdout]     |
[INFO] [stdout] 135 | pub fn double_double(input: Vec<&str>) -> Vec<&str> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `three_character_strings`
[INFO] [stdout]    --> src/lib.rs:151:8
[INFO] [stdout]     |
[INFO] [stdout] 151 | pub fn three_character_strings(input: &str) -> Vec<&str> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.55s
[INFO] running `Command { std: "docker" "inspect" "99e27ade32ef54a847209ab448a2481427af86b127d005799578f41fe6b2183b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99e27ade32ef54a847209ab448a2481427af86b127d005799578f41fe6b2183b", kill_on_drop: false }`
[INFO] [stdout] 99e27ade32ef54a847209ab448a2481427af86b127d005799578f41fe6b2183b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", 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] f44c57864c647d364dba9ce9716b40e57ff453f7a110971556fc6f358ef1e918
[INFO] running `Command { std: "docker" "start" "-a" "f44c57864c647d364dba9ce9716b40e57ff453f7a110971556fc6f358ef1e918", kill_on_drop: false }`
[INFO] [stderr]    Compiling twelve_problems_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.68s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/twelve_problems_rust-d6b0a71c0a1e97fe)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/twelve_problems_rust-992f99f6362b734d)
[INFO] running `Command { std: "docker" "inspect" "f44c57864c647d364dba9ce9716b40e57ff453f7a110971556fc6f358ef1e918", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f44c57864c647d364dba9ce9716b40e57ff453f7a110971556fc6f358ef1e918", kill_on_drop: false }`
[INFO] [stdout] f44c57864c647d364dba9ce9716b40e57ff453f7a110971556fc6f358ef1e918
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 063f2d4c4a704161070ab0044a6e0ecbbe4b56ceffad91e1ed2cf9476f42cb09
[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" "063f2d4c4a704161070ab0044a6e0ecbbe4b56ceffad91e1ed2cf9476f42cb09", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/twelve_problems_rust-d6b0a71c0a1e97fe)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::test_three_characer_strings ... ok
[INFO] [stdout] test tests::test_second_digit_5 ... ok
[INFO] [stdout] test tests::test_distance_from_origin ... ok
[INFO] [stdout] test tests::test_ends_with_uppercase_letter ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/twelve_problems_rust-992f99f6362b734d)
[INFO] [stdout] test tests::test_double_double ... ok
[INFO] [stdout] test tests::test_pow ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stderr]    Doc-tests twelve_problems_rust
[INFO] [stdout] test lib::tests::test_three_characer_strings ... ok
[INFO] [stdout] test lib::tests::test_second_digit_5 ... ok
[INFO] [stdout] test lib::tests::test_pow ... ok
[INFO] [stdout] test lib::tests::test_ends_with_uppercase_letter ... ok
[INFO] [stdout] test lib::tests::test_double_double ... ok
[INFO] [stdout] test lib::tests::test_distance_from_origin ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 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" "063f2d4c4a704161070ab0044a6e0ecbbe4b56ceffad91e1ed2cf9476f42cb09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "063f2d4c4a704161070ab0044a6e0ecbbe4b56ceffad91e1ed2cf9476f42cb09", kill_on_drop: false }`
[INFO] [stdout] 063f2d4c4a704161070ab0044a6e0ecbbe4b56ceffad91e1ed2cf9476f42cb09