[INFO] cloning repository https://github.com/CamilleDrapier/sudoku-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CamilleDrapier/sudoku-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCamilleDrapier%2Fsudoku-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCamilleDrapier%2Fsudoku-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 34486daf948ab0c3d5b7486e46f0b93a47d43209
[INFO] testing CamilleDrapier/sudoku-rs against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCamilleDrapier%2Fsudoku-rs" "/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/CamilleDrapier/sudoku-rs 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 git repo https://github.com/CamilleDrapier/sudoku-rs
[INFO] finished tweaking git repo https://github.com/CamilleDrapier/sudoku-rs
[INFO] tweaked toml for git repo https://github.com/CamilleDrapier/sudoku-rs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/CamilleDrapier/sudoku-rs 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] 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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] b31e6ee0a8c3cb9223a14e4d47a5b814a9d26c03f526ba63642c6b5e0c026c10
[INFO] running `Command { std: "docker" "start" "-a" "b31e6ee0a8c3cb9223a14e4d47a5b814a9d26c03f526ba63642c6b5e0c026c10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b31e6ee0a8c3cb9223a14e4d47a5b814a9d26c03f526ba63642c6b5e0c026c10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b31e6ee0a8c3cb9223a14e4d47a5b814a9d26c03f526ba63642c6b5e0c026c10", kill_on_drop: false }`
[INFO] [stdout] b31e6ee0a8c3cb9223a14e4d47a5b814a9d26c03f526ba63642c6b5e0c026c10
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b088b95c02a0f0e9449c5f540e010f6667993250b050ab507fb2a3d254d925a4
[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" "b088b95c02a0f0e9449c5f540e010f6667993250b050ab507fb2a3d254d925a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "b088b95c02a0f0e9449c5f540e010f6667993250b050ab507fb2a3d254d925a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b088b95c02a0f0e9449c5f540e010f6667993250b050ab507fb2a3d254d925a4", kill_on_drop: false }`
[INFO] [stdout] b088b95c02a0f0e9449c5f540e010f6667993250b050ab507fb2a3d254d925a4
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f73f9d4187c28a89a640e4585fa7cf63b64affd4a6be78f03fd74db8de930475
[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" "f73f9d4187c28a89a640e4585fa7cf63b64affd4a6be78f03fd74db8de930475", kill_on_drop: false }`
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `Command { std: "docker" "inspect" "f73f9d4187c28a89a640e4585fa7cf63b64affd4a6be78f03fd74db8de930475", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f73f9d4187c28a89a640e4585fa7cf63b64affd4a6be78f03fd74db8de930475", kill_on_drop: false }`
[INFO] [stdout] f73f9d4187c28a89a640e4585fa7cf63b64affd4a6be78f03fd74db8de930475
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 97da1b706c3373c64ad7de5a279e5815e3b9c2677665479f2f910c67ec2dbedc
[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" "97da1b706c3373c64ad7de5a279e5815e3b9c2677665479f2f910c67ec2dbedc", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sudoku-3841c32cf55b3764
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sudoku-3cb38e0aca5c0e3d
[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 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 /opt/rustwide/target/debug/deps/soduku-2ac9b9d8c4f33860
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test it_finds_potentials_in_an_empty_cell ... ok
[INFO] [stdout] test it_returns_a_solved_grid ... ok
[INFO] [stdout] test it_finds_no_potentials_in_a_cell ... ok
[INFO] [stdout] test it_inits_all_none ... ok
[INFO] [stdout] test it_gets_values ... ok
[INFO] [stdout] test it_finds_potentials_in_a_cell ... ok
[INFO] [stdout] test it_checks_impossible ... ok
[INFO] [stderr]    Doc-tests sudoku
[INFO] [stdout] test it_solves ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[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" "97da1b706c3373c64ad7de5a279e5815e3b9c2677665479f2f910c67ec2dbedc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97da1b706c3373c64ad7de5a279e5815e3b9c2677665479f2f910c67ec2dbedc", kill_on_drop: false }`
[INFO] [stdout] 97da1b706c3373c64ad7de5a279e5815e3b9c2677665479f2f910c67ec2dbedc