[INFO] cloning repository https://github.com/wasuken/ackermann-function-book
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wasuken/ackermann-function-book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwasuken%2Fackermann-function-book", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwasuken%2Fackermann-function-book'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a70b00d136af3a04b8f03c3c434affe2c379beb9
[INFO] testing wasuken/ackermann-function-book against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwasuken%2Fackermann-function-book" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wasuken/ackermann-function-book on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wasuken/ackermann-function-book
[INFO] finished tweaking git repo https://github.com/wasuken/ackermann-function-book
[INFO] tweaked toml for git repo https://github.com/wasuken/ackermann-function-book written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/wasuken/ackermann-function-book already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d41149437bb9de3d8ad8f894567cdeba03cde25051add03a9dbd37e01b9c8f8d
[INFO] running `Command { std: "docker" "start" "-a" "d41149437bb9de3d8ad8f894567cdeba03cde25051add03a9dbd37e01b9c8f8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d41149437bb9de3d8ad8f894567cdeba03cde25051add03a9dbd37e01b9c8f8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d41149437bb9de3d8ad8f894567cdeba03cde25051add03a9dbd37e01b9c8f8d", kill_on_drop: false }`
[INFO] [stdout] d41149437bb9de3d8ad8f894567cdeba03cde25051add03a9dbd37e01b9c8f8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d687a00eb1e3a29c45cf71e1d2b3344960485372378585991c150f95d2f63af
[INFO] running `Command { std: "docker" "start" "-a" "4d687a00eb1e3a29c45cf71e1d2b3344960485372378585991c150f95d2f63af", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-bigint v0.2.5
[INFO] [stderr]    Compiling ackermann-function-book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.07s
[INFO] running `Command { std: "docker" "inspect" "4d687a00eb1e3a29c45cf71e1d2b3344960485372378585991c150f95d2f63af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d687a00eb1e3a29c45cf71e1d2b3344960485372378585991c150f95d2f63af", kill_on_drop: false }`
[INFO] [stdout] 4d687a00eb1e3a29c45cf71e1d2b3344960485372378585991c150f95d2f63af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9fbbd2b6a1d5360d68d45ffa5867aaaea0a8c06bd39c5fa0b62c65e0e492109
[INFO] running `Command { std: "docker" "start" "-a" "e9fbbd2b6a1d5360d68d45ffa5867aaaea0a8c06bd39c5fa0b62c65e0e492109", kill_on_drop: false }`
[INFO] [stderr]    Compiling ackermann-function-book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "e9fbbd2b6a1d5360d68d45ffa5867aaaea0a8c06bd39c5fa0b62c65e0e492109", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9fbbd2b6a1d5360d68d45ffa5867aaaea0a8c06bd39c5fa0b62c65e0e492109", kill_on_drop: false }`
[INFO] [stdout] e9fbbd2b6a1d5360d68d45ffa5867aaaea0a8c06bd39c5fa0b62c65e0e492109
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 68180db8fdeb474a558b924c35b175041332b8a5c760ec99f14495c4647bcb1d
[INFO] running `Command { std: "docker" "start" "-a" "68180db8fdeb474a558b924c35b175041332b8a5c760ec99f14495c4647bcb1d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ackermann_function_book-ac3e7426ffec4435)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::a0 ... ok
[INFO] [stdout] test tests::a2 ... ok
[INFO] [stdout] test tests::conv_from_u32_biguint ... ok
[INFO] [stdout] test tests::a3 ... ok
[INFO] [stdout] test tests::a1 ... ok
[INFO] [stdout] test tests::a4 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "68180db8fdeb474a558b924c35b175041332b8a5c760ec99f14495c4647bcb1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68180db8fdeb474a558b924c35b175041332b8a5c760ec99f14495c4647bcb1d", kill_on_drop: false }`
[INFO] [stdout] 68180db8fdeb474a558b924c35b175041332b8a5c760ec99f14495c4647bcb1d