[INFO] cloning repository https://github.com/na-go/understanding_ownership
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/na-go/understanding_ownership" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fna-go%2Funderstanding_ownership", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fna-go%2Funderstanding_ownership'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f6a52ea1f3bf770f04fedf9e44e02a92dc40f674
[INFO] testing na-go/understanding_ownership against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fna-go%2Funderstanding_ownership" "/workspace/builds/worker-117/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-117/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/na-go/understanding_ownership on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/na-go/understanding_ownership
[INFO] finished tweaking git repo https://github.com/na-go/understanding_ownership
[INFO] tweaked toml for git repo https://github.com/na-go/understanding_ownership written to /workspace/builds/worker-117/source/Cargo.toml
[INFO] crate git repo https://github.com/na-go/understanding_ownership already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6780bece5202da052fcd4aaba2f2d8364284720af674ddcd966bf76f09f4a48e
[INFO] running `Command { std: "docker" "start" "-a" "6780bece5202da052fcd4aaba2f2d8364284720af674ddcd966bf76f09f4a48e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6780bece5202da052fcd4aaba2f2d8364284720af674ddcd966bf76f09f4a48e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6780bece5202da052fcd4aaba2f2d8364284720af674ddcd966bf76f09f4a48e", kill_on_drop: false }`
[INFO] [stdout] 6780bece5202da052fcd4aaba2f2d8364284720af674ddcd966bf76f09f4a48e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86bbc7efab04e9e52a52f5177502c117069eef02f528120e8ecdab54f2d41571
[INFO] running `Command { std: "docker" "start" "-a" "86bbc7efab04e9e52a52f5177502c117069eef02f528120e8ecdab54f2d41571", kill_on_drop: false }`
[INFO] [stderr]    Compiling understanding_ownership v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "86bbc7efab04e9e52a52f5177502c117069eef02f528120e8ecdab54f2d41571", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86bbc7efab04e9e52a52f5177502c117069eef02f528120e8ecdab54f2d41571", kill_on_drop: false }`
[INFO] [stdout] 86bbc7efab04e9e52a52f5177502c117069eef02f528120e8ecdab54f2d41571
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6dbeb8441cc2de6f4eb288a71c57de9d69aee42b902b1b12ee892668756d64d9
[INFO] running `Command { std: "docker" "start" "-a" "6dbeb8441cc2de6f4eb288a71c57de9d69aee42b902b1b12ee892668756d64d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling understanding_ownership v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "6dbeb8441cc2de6f4eb288a71c57de9d69aee42b902b1b12ee892668756d64d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dbeb8441cc2de6f4eb288a71c57de9d69aee42b902b1b12ee892668756d64d9", kill_on_drop: false }`
[INFO] [stdout] 6dbeb8441cc2de6f4eb288a71c57de9d69aee42b902b1b12ee892668756d64d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 66b546f28d3b97a08689447382993325fadf5fe786ee459ddd42beff5f70480d
[INFO] running `Command { std: "docker" "start" "-a" "66b546f28d3b97a08689447382993325fadf5fe786ee459ddd42beff5f70480d", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.36s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/understanding_ownership-89d0a86da190eb0b)
[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" "66b546f28d3b97a08689447382993325fadf5fe786ee459ddd42beff5f70480d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66b546f28d3b97a08689447382993325fadf5fe786ee459ddd42beff5f70480d", kill_on_drop: false }`
[INFO] [stdout] 66b546f28d3b97a08689447382993325fadf5fe786ee459ddd42beff5f70480d