[INFO] cloning repository https://github.com/brandwatchsteve/puzzler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brandwatchsteve/puzzler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrandwatchsteve%2Fpuzzler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrandwatchsteve%2Fpuzzler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 39f38ee1c883bfe5dfd462d2a7a88799669f48a0
[INFO] testing brandwatchsteve/puzzler 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%2Fbrandwatchsteve%2Fpuzzler" "/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/brandwatchsteve/puzzler 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/brandwatchsteve/puzzler
[INFO] finished tweaking git repo https://github.com/brandwatchsteve/puzzler
[INFO] tweaked toml for git repo https://github.com/brandwatchsteve/puzzler written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/brandwatchsteve/puzzler 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] [stdout] 918edc3d0650e89fa40a769a3183214d2d42afa9ca872d3b5d85014a9aeecd4c
[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" "918edc3d0650e89fa40a769a3183214d2d42afa9ca872d3b5d85014a9aeecd4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "918edc3d0650e89fa40a769a3183214d2d42afa9ca872d3b5d85014a9aeecd4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "918edc3d0650e89fa40a769a3183214d2d42afa9ca872d3b5d85014a9aeecd4c", kill_on_drop: false }`
[INFO] [stdout] 918edc3d0650e89fa40a769a3183214d2d42afa9ca872d3b5d85014a9aeecd4c
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c34eaa7ede6cd675c823c16c2bd545b933b7d736b898c9dd8bbd9120330793d7
[INFO] running `Command { std: "docker" "start" "-a" "c34eaa7ede6cd675c823c16c2bd545b933b7d736b898c9dd8bbd9120330793d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling crossbeam-deque v0.7.2
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling puzzler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused label
[INFO] [stdout]   --> src/lib.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         'inner: for pairchar in candidate_word.slice() {
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_labels)]` 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 25.85s
[INFO] running `Command { std: "docker" "inspect" "c34eaa7ede6cd675c823c16c2bd545b933b7d736b898c9dd8bbd9120330793d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c34eaa7ede6cd675c823c16c2bd545b933b7d736b898c9dd8bbd9120330793d7", kill_on_drop: false }`
[INFO] [stdout] c34eaa7ede6cd675c823c16c2bd545b933b7d736b898c9dd8bbd9120330793d7
[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] [stdout] aa147d6aa04a406cf1872a14d63d199b7dc9336706f53ff2c2d90815098866b6
[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" "aa147d6aa04a406cf1872a14d63d199b7dc9336706f53ff2c2d90815098866b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling puzzler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused label
[INFO] [stdout]   --> src/lib.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         'inner: for pairchar in candidate_word.slice() {
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]   --> src/lib.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         'inner: for pairchar in candidate_word.slice() {
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.11s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/puzzler-ac475ec615f8c84c)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/puzzler-2d63d237c17be410)
[INFO] [stderr]   Executable tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-78f3e3299381d20a)
[INFO] running `Command { std: "docker" "inspect" "aa147d6aa04a406cf1872a14d63d199b7dc9336706f53ff2c2d90815098866b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa147d6aa04a406cf1872a14d63d199b7dc9336706f53ff2c2d90815098866b6", kill_on_drop: false }`
[INFO] [stdout] aa147d6aa04a406cf1872a14d63d199b7dc9336706f53ff2c2d90815098866b6
[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] 89e852baa67f09073b772e116b569569660028390270e0425e8f81b194dbeab6
[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" "89e852baa67f09073b772e116b569569660028390270e0425e8f81b194dbeab6", kill_on_drop: false }`
[INFO] [stderr] warning: unused label
[INFO] [stderr]   --> src/lib.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         'inner: for pairchar in candidate_word.slice() {
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `puzzler` (lib) generated 1 warning
[INFO] [stderr] warning: `puzzler` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/puzzler-ac475ec615f8c84c)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/puzzler-2d63d237c17be410)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-78f3e3299381d20a)
[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] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test four_by_four_solution ... ok
[INFO] [stdout] test no_repeats_symmetric ... ok
[INFO] [stdout] test no_repeats_rows ... ok
[INFO] [stdout] test four_by_four_with_spaces_solution ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests puzzler
[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" "89e852baa67f09073b772e116b569569660028390270e0425e8f81b194dbeab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89e852baa67f09073b772e116b569569660028390270e0425e8f81b194dbeab6", kill_on_drop: false }`
[INFO] [stdout] 89e852baa67f09073b772e116b569569660028390270e0425e8f81b194dbeab6