[INFO] fetching crate scrap 0.5.0...
[INFO] testing scrap-0.5.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate scrap 0.5.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate scrap 0.5.0 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 scrap 0.5.0
[INFO] finished tweaking crates.io crate scrap 0.5.0
[INFO] tweaked toml for crates.io crate scrap 0.5.0 written to /workspace/builds/worker-6/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-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" "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] [stdout] 04e1c23faa283c7f81debbd81366274b605ac511287b14f05c0c5f74ed1517cd
[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" "04e1c23faa283c7f81debbd81366274b605ac511287b14f05c0c5f74ed1517cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04e1c23faa283c7f81debbd81366274b605ac511287b14f05c0c5f74ed1517cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04e1c23faa283c7f81debbd81366274b605ac511287b14f05c0c5f74ed1517cd", kill_on_drop: false }`
[INFO] [stdout] 04e1c23faa283c7f81debbd81366274b605ac511287b14f05c0c5f74ed1517cd
[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" "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] a124f49ef3f42efc449a173c06f5f463ba018a73cce96e167416bfc0c2e3589e
[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" "a124f49ef3f42efc449a173c06f5f463ba018a73cce96e167416bfc0c2e3589e", kill_on_drop: false }`
[INFO] [stderr]    Compiling scrap v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling block v0.1.6
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `Command { std: "docker" "inspect" "a124f49ef3f42efc449a173c06f5f463ba018a73cce96e167416bfc0c2e3589e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a124f49ef3f42efc449a173c06f5f463ba018a73cce96e167416bfc0c2e3589e", kill_on_drop: false }`
[INFO] [stdout] a124f49ef3f42efc449a173c06f5f463ba018a73cce96e167416bfc0c2e3589e
[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" "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] [stdout] accf5824d2512430c8c3d1a4947980d6e0a73b8f712fe985ed982c7b8288ae27
[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" "accf5824d2512430c8c3d1a4947980d6e0a73b8f712fe985ed982c7b8288ae27", kill_on_drop: false }`
[INFO] [stderr]    Compiling flate2 v1.0.19
[INFO] [stderr]    Compiling repng v0.2.2
[INFO] [stderr]    Compiling scrap v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.63s
[INFO] running `Command { std: "docker" "inspect" "accf5824d2512430c8c3d1a4947980d6e0a73b8f712fe985ed982c7b8288ae27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "accf5824d2512430c8c3d1a4947980d6e0a73b8f712fe985ed982c7b8288ae27", kill_on_drop: false }`
[INFO] [stdout] accf5824d2512430c8c3d1a4947980d6e0a73b8f712fe985ed982c7b8288ae27
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1a8d4e20b23b0eb75d5dafe812b89dabee6dfc3a37cbe3773dead2426c7aeb9a
[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" "1a8d4e20b23b0eb75d5dafe812b89dabee6dfc3a37cbe3773dead2426c7aeb9a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/scrap-d87e4f2b4ed4fb90
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests scrap
[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] [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" "1a8d4e20b23b0eb75d5dafe812b89dabee6dfc3a37cbe3773dead2426c7aeb9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a8d4e20b23b0eb75d5dafe812b89dabee6dfc3a37cbe3773dead2426c7aeb9a", kill_on_drop: false }`
[INFO] [stdout] 1a8d4e20b23b0eb75d5dafe812b89dabee6dfc3a37cbe3773dead2426c7aeb9a