[INFO] fetching crate kvbase 0.0.1-dev...
[INFO] testing kvbase-0.0.1-dev against 1.55.0 for beta-1.56-1
[INFO] extracting crate kvbase 0.0.1-dev into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate kvbase 0.0.1-dev on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kvbase 0.0.1-dev
[INFO] finished tweaking crates.io crate kvbase 0.0.1-dev
[INFO] tweaked toml for crates.io crate kvbase 0.0.1-dev written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate kvbase 0.0.1-dev already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "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] c312367d7e58a1b7ede097869a3c3c0f83b1826b2cf851cb6423edd86d38267f
[INFO] running `Command { std: "docker" "start" "-a" "c312367d7e58a1b7ede097869a3c3c0f83b1826b2cf851cb6423edd86d38267f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c312367d7e58a1b7ede097869a3c3c0f83b1826b2cf851cb6423edd86d38267f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c312367d7e58a1b7ede097869a3c3c0f83b1826b2cf851cb6423edd86d38267f", kill_on_drop: false }`
[INFO] [stdout] c312367d7e58a1b7ede097869a3c3c0f83b1826b2cf851cb6423edd86d38267f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "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] 5939dd03377a64acf712a8fc3a9168544c4705064cfe291d18e6cffd511a5df4
[INFO] running `Command { std: "docker" "start" "-a" "5939dd03377a64acf712a8fc3a9168544c4705064cfe291d18e6cffd511a5df4", kill_on_drop: false }`
[INFO] [stderr]    Compiling kvbase v0.0.1-dev (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "5939dd03377a64acf712a8fc3a9168544c4705064cfe291d18e6cffd511a5df4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5939dd03377a64acf712a8fc3a9168544c4705064cfe291d18e6cffd511a5df4", kill_on_drop: false }`
[INFO] [stdout] 5939dd03377a64acf712a8fc3a9168544c4705064cfe291d18e6cffd511a5df4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32190a4948c00696a2fefdb4ace1a5e857ea6648ec411848bb32450865990955
[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" "32190a4948c00696a2fefdb4ace1a5e857ea6648ec411848bb32450865990955", kill_on_drop: false }`
[INFO] [stderr]    Compiling kvbase v0.0.1-dev (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "32190a4948c00696a2fefdb4ace1a5e857ea6648ec411848bb32450865990955", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32190a4948c00696a2fefdb4ace1a5e857ea6648ec411848bb32450865990955", kill_on_drop: false }`
[INFO] [stdout] 32190a4948c00696a2fefdb4ace1a5e857ea6648ec411848bb32450865990955
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1a7c2cfecc898a73453a7dc2ed9e364e9a8278f48d683a63bd5f8017d049cb24
[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" "1a7c2cfecc898a73453a7dc2ed9e364e9a8278f48d683a63bd5f8017d049cb24", kill_on_drop: false }`
[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]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kvbase-136838613ef2ddc4)
[INFO] running `Command { std: "docker" "inspect" "1a7c2cfecc898a73453a7dc2ed9e364e9a8278f48d683a63bd5f8017d049cb24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a7c2cfecc898a73453a7dc2ed9e364e9a8278f48d683a63bd5f8017d049cb24", kill_on_drop: false }`
[INFO] [stdout] 1a7c2cfecc898a73453a7dc2ed9e364e9a8278f48d683a63bd5f8017d049cb24