[INFO] fetching crate rust-15-puzzle-cli 0.2.0...
[INFO] testing rust-15-puzzle-cli-0.2.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate rust-15-puzzle-cli 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate rust-15-puzzle-cli 0.2.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-15-puzzle-cli 0.2.0
[INFO] finished tweaking crates.io crate rust-15-puzzle-cli 0.2.0
[INFO] tweaked toml for crates.io crate rust-15-puzzle-cli 0.2.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate rust-15-puzzle-cli 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tui v0.9.1
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 720632d4ce4f42b187fc57c572c3fcb5c1429dba63340ba80709762d11ace640
[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" "720632d4ce4f42b187fc57c572c3fcb5c1429dba63340ba80709762d11ace640", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "720632d4ce4f42b187fc57c572c3fcb5c1429dba63340ba80709762d11ace640", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "720632d4ce4f42b187fc57c572c3fcb5c1429dba63340ba80709762d11ace640", kill_on_drop: false }`
[INFO] [stdout] 720632d4ce4f42b187fc57c572c3fcb5c1429dba63340ba80709762d11ace640
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88a6177683e591916ea72e239343336f03872844b5ae02576e0fea26ed41150e
[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" "88a6177683e591916ea72e239343336f03872844b5ae02576e0fea26ed41150e", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling termion v1.5.5
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tui v0.9.1
[INFO] [stderr]    Compiling rust-15-puzzle-cli v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.27s
[INFO] running `Command { std: "docker" "inspect" "88a6177683e591916ea72e239343336f03872844b5ae02576e0fea26ed41150e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88a6177683e591916ea72e239343336f03872844b5ae02576e0fea26ed41150e", kill_on_drop: false }`
[INFO] [stdout] 88a6177683e591916ea72e239343336f03872844b5ae02576e0fea26ed41150e
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55f27d77683e7393fd0935623e144177bb8f9a0d21c436320650e6d32e9b2f0d
[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" "55f27d77683e7393fd0935623e144177bb8f9a0d21c436320650e6d32e9b2f0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-15-puzzle-cli v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `Command { std: "docker" "inspect" "55f27d77683e7393fd0935623e144177bb8f9a0d21c436320650e6d32e9b2f0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55f27d77683e7393fd0935623e144177bb8f9a0d21c436320650e6d32e9b2f0d", kill_on_drop: false }`
[INFO] [stdout] 55f27d77683e7393fd0935623e144177bb8f9a0d21c436320650e6d32e9b2f0d
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 91ea1a008315d8df7f7672299412b20096f83c21dbade14fb872d3c72fef9261
[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" "91ea1a008315d8df7f7672299412b20096f83c21dbade14fb872d3c72fef9261", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_15_puzzle_cli-a1a91bc3a210c2af
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test helper::util::tests::count_inversion_should_correct ... ok
[INFO] [stdout] test helper::util::tests::is_solvable_should_correct ... ok
[INFO] [stdout] test helper::util::tests::move_tile_should_generate_correct_arr ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.37s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "91ea1a008315d8df7f7672299412b20096f83c21dbade14fb872d3c72fef9261", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91ea1a008315d8df7f7672299412b20096f83c21dbade14fb872d3c72fef9261", kill_on_drop: false }`
[INFO] [stdout] 91ea1a008315d8df7f7672299412b20096f83c21dbade14fb872d3c72fef9261