[INFO] fetching crate ff_ce 0.12.0...
[INFO] testing ff_ce-0.12.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate ff_ce 0.12.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate ff_ce 0.12.0 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 ff_ce 0.12.0
[INFO] finished tweaking crates.io crate ff_ce 0.12.0
[INFO] tweaked toml for crates.io crate ff_ce 0.12.0 written to /workspace/builds/worker-8/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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 923c5810a2578e0bbc26779e124f21cded44cdd5d6b43c783d01ce88fdbf11ca
[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" "923c5810a2578e0bbc26779e124f21cded44cdd5d6b43c783d01ce88fdbf11ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "923c5810a2578e0bbc26779e124f21cded44cdd5d6b43c783d01ce88fdbf11ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "923c5810a2578e0bbc26779e124f21cded44cdd5d6b43c783d01ce88fdbf11ca", kill_on_drop: false }`
[INFO] [stdout] 923c5810a2578e0bbc26779e124f21cded44cdd5d6b43c783d01ce88fdbf11ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 455dc23f0e68fb71633e772fc7e30045905ac2e4dae97ff96b9afe481576befa
[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" "455dc23f0e68fb71633e772fc7e30045905ac2e4dae97ff96b9afe481576befa", kill_on_drop: false }`
[INFO] [stderr]    Compiling ff_ce v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "455dc23f0e68fb71633e772fc7e30045905ac2e4dae97ff96b9afe481576befa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "455dc23f0e68fb71633e772fc7e30045905ac2e4dae97ff96b9afe481576befa", kill_on_drop: false }`
[INFO] [stdout] 455dc23f0e68fb71633e772fc7e30045905ac2e4dae97ff96b9afe481576befa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] b6a461f47ca25b93c0960fa4a24a4947c0f68908fd6ac8c16e608fa7f295aacc
[INFO] running `Command { std: "docker" "start" "-a" "b6a461f47ca25b93c0960fa4a24a4947c0f68908fd6ac8c16e608fa7f295aacc", kill_on_drop: false }`
[INFO] [stderr]    Compiling ff_ce v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "b6a461f47ca25b93c0960fa4a24a4947c0f68908fd6ac8c16e608fa7f295aacc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6a461f47ca25b93c0960fa4a24a4947c0f68908fd6ac8c16e608fa7f295aacc", kill_on_drop: false }`
[INFO] [stdout] b6a461f47ca25b93c0960fa4a24a4947c0f68908fd6ac8c16e608fa7f295aacc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] bce41906b85efbaaa18a47bdb6466d7d40098aa26e7030b8f4bccb260cb0a506
[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" "bce41906b85efbaaa18a47bdb6466d7d40098aa26e7030b8f4bccb260cb0a506", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ff_ce-8b2412cc4abcd77b
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_bit_iterator ... ok
[INFO] [stdout] test test_bit_iterator_length ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ff_ce
[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" "bce41906b85efbaaa18a47bdb6466d7d40098aa26e7030b8f4bccb260cb0a506", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bce41906b85efbaaa18a47bdb6466d7d40098aa26e7030b8f4bccb260cb0a506", kill_on_drop: false }`
[INFO] [stdout] bce41906b85efbaaa18a47bdb6466d7d40098aa26e7030b8f4bccb260cb0a506