[INFO] fetching crate blockchain-core 0.1.2...
[INFO] testing blockchain-core-0.1.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate blockchain-core 0.1.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate blockchain-core 0.1.2 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blockchain-core 0.1.2
[INFO] finished tweaking crates.io crate blockchain-core 0.1.2
[INFO] tweaked toml for crates.io crate blockchain-core 0.1.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.49.0" "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] b4c88db81dd3929d8af96b216aeab015fac3953ffe3e77c9107ea6feb15b5ef3
[INFO] running `Command { std: "docker" "start" "-a" "b4c88db81dd3929d8af96b216aeab015fac3953ffe3e77c9107ea6feb15b5ef3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4c88db81dd3929d8af96b216aeab015fac3953ffe3e77c9107ea6feb15b5ef3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4c88db81dd3929d8af96b216aeab015fac3953ffe3e77c9107ea6feb15b5ef3", kill_on_drop: false }`
[INFO] [stdout] b4c88db81dd3929d8af96b216aeab015fac3953ffe3e77c9107ea6feb15b5ef3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fcb39a554199b3fd1eaba41e4ab6c6866729ca361589ee47ff987e37f1762a9
[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" "6fcb39a554199b3fd1eaba41e4ab6c6866729ca361589ee47ff987e37f1762a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling blockchain-core v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "6fcb39a554199b3fd1eaba41e4ab6c6866729ca361589ee47ff987e37f1762a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fcb39a554199b3fd1eaba41e4ab6c6866729ca361589ee47ff987e37f1762a9", kill_on_drop: false }`
[INFO] [stdout] 6fcb39a554199b3fd1eaba41e4ab6c6866729ca361589ee47ff987e37f1762a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.49.0" "test" "--frozen" "--no-run" "--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] 46ca14b7496f6f6ca123b873b90e62fff0a05c8bfd77c98de35b38a0fc61fb1f
[INFO] running `Command { std: "docker" "start" "-a" "46ca14b7496f6f6ca123b873b90e62fff0a05c8bfd77c98de35b38a0fc61fb1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling blockchain-core v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "46ca14b7496f6f6ca123b873b90e62fff0a05c8bfd77c98de35b38a0fc61fb1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46ca14b7496f6f6ca123b873b90e62fff0a05c8bfd77c98de35b38a0fc61fb1f", kill_on_drop: false }`
[INFO] [stdout] 46ca14b7496f6f6ca123b873b90e62fff0a05c8bfd77c98de35b38a0fc61fb1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.49.0" "test" "--frozen", 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] 60735dcb00e6b6d5a2b27d67976ca601e56c98141b4d649421c65fbed52b3cd9
[INFO] running `Command { std: "docker" "start" "-a" "60735dcb00e6b6d5a2b27d67976ca601e56c98141b4d649421c65fbed52b3cd9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/blockchain_core-9a5361929b5ec52d
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests blockchain-core
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "60735dcb00e6b6d5a2b27d67976ca601e56c98141b4d649421c65fbed52b3cd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60735dcb00e6b6d5a2b27d67976ca601e56c98141b4d649421c65fbed52b3cd9", kill_on_drop: false }`
[INFO] [stdout] 60735dcb00e6b6d5a2b27d67976ca601e56c98141b4d649421c65fbed52b3cd9