[INFO] fetching crate brinicle_kernel 1.0.0...
[INFO] testing brinicle_kernel-1.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate brinicle_kernel 1.0.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate brinicle_kernel 1.0.0 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 brinicle_kernel 1.0.0
[INFO] finished tweaking crates.io crate brinicle_kernel 1.0.0
[INFO] tweaked toml for crates.io crate brinicle_kernel 1.0.0 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] [stdout] 86c043e7b8cfed1b3d311d7754f11f2f2ed526f26ec86258655f52c61d9ab4ff
[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" "86c043e7b8cfed1b3d311d7754f11f2f2ed526f26ec86258655f52c61d9ab4ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86c043e7b8cfed1b3d311d7754f11f2f2ed526f26ec86258655f52c61d9ab4ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86c043e7b8cfed1b3d311d7754f11f2f2ed526f26ec86258655f52c61d9ab4ff", kill_on_drop: false }`
[INFO] [stdout] 86c043e7b8cfed1b3d311d7754f11f2f2ed526f26ec86258655f52c61d9ab4ff
[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] e49d8b212cfbb500c8aee56e2cb74adb291e3f19d4fdd4141b98e34ad03a8b6a
[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" "e49d8b212cfbb500c8aee56e2cb74adb291e3f19d4fdd4141b98e34ad03a8b6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling brinicle_deinterleaved v1.0.0
[INFO] [stderr]    Compiling brinicle_kernel v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: warn(rust_2018_idioms) is ignored unless specified at crate level
[INFO] [stdout]  --> src/lib.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[warn(nonstandard_style, rust_2018_idioms, future_incompatible)]
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: warn(rust_2018_idioms) is ignored unless specified at crate level
[INFO] [stdout]  --> src/lib.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[warn(nonstandard_style, rust_2018_idioms, future_incompatible)]
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "e49d8b212cfbb500c8aee56e2cb74adb291e3f19d4fdd4141b98e34ad03a8b6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e49d8b212cfbb500c8aee56e2cb74adb291e3f19d4fdd4141b98e34ad03a8b6a", kill_on_drop: false }`
[INFO] [stdout] e49d8b212cfbb500c8aee56e2cb74adb291e3f19d4fdd4141b98e34ad03a8b6a
[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] 89e8a43397a972214f712e17f8196d6a1bd1d2d832f5aba9efba11ce4dc03ee4
[INFO] running `Command { std: "docker" "start" "-a" "89e8a43397a972214f712e17f8196d6a1bd1d2d832f5aba9efba11ce4dc03ee4", kill_on_drop: false }`
[INFO] [stdout] warning: warn(rust_2018_idioms) is ignored unless specified at crate level
[INFO] [stdout]  --> src/lib.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[warn(nonstandard_style, rust_2018_idioms, future_incompatible)]
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: warn(rust_2018_idioms) is ignored unless specified at crate level
[INFO] [stdout]  --> src/lib.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[warn(nonstandard_style, rust_2018_idioms, future_incompatible)]
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling brinicle_kernel v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: warn(rust_2018_idioms) is ignored unless specified at crate level
[INFO] [stdout]  --> src/lib.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[warn(nonstandard_style, rust_2018_idioms, future_incompatible)]
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: warn(rust_2018_idioms) is ignored unless specified at crate level
[INFO] [stdout]  --> src/lib.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[warn(nonstandard_style, rust_2018_idioms, future_incompatible)]
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "89e8a43397a972214f712e17f8196d6a1bd1d2d832f5aba9efba11ce4dc03ee4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89e8a43397a972214f712e17f8196d6a1bd1d2d832f5aba9efba11ce4dc03ee4", kill_on_drop: false }`
[INFO] [stdout] 89e8a43397a972214f712e17f8196d6a1bd1d2d832f5aba9efba11ce4dc03ee4
[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] b21c593204a1e7f24b5f3427e1364b74543471a292d275c3def5263454b26a86
[INFO] running `Command { std: "docker" "start" "-a" "b21c593204a1e7f24b5f3427e1364b74543471a292d275c3def5263454b26a86", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: warn(rust_2018_idioms) is ignored unless specified at crate level
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/lib.rs:1:27
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 1 | #[warn(nonstandard_style, rust_2018_idioms, future_incompatible)]
[INFO] [stdout] 
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: warn(rust_2018_idioms) is ignored unless specified at crate level
[INFO] [stderr]  --> src/lib.rs:1:27
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[warn(nonstandard_style, rust_2018_idioms, future_incompatible)]
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: warn(rust_2018_idioms) is ignored unless specified at crate level
[INFO] [stderr]  --> src/lib.rs:1:27
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[warn(nonstandard_style, rust_2018_idioms, future_incompatible)]
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: warn(rust_2018_idioms) is ignored unless specified at crate level
[INFO] [stderr]  --> src/lib.rs:1:27
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[warn(nonstandard_style, rust_2018_idioms, future_incompatible)]
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/brinicle_kernel-7f326361693c1a1c
[INFO] [stderr]    Doc-tests brinicle_kernel
[INFO] [stderr] warning: warn(rust_2018_idioms) is ignored unless specified at crate level
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:1:27
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[warn(nonstandard_style, rust_2018_idioms, future_incompatible)]
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: warn(rust_2018_idioms) is ignored unless specified at crate level
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:1:27
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[warn(nonstandard_style, rust_2018_idioms, future_incompatible)]
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[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" "b21c593204a1e7f24b5f3427e1364b74543471a292d275c3def5263454b26a86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b21c593204a1e7f24b5f3427e1364b74543471a292d275c3def5263454b26a86", kill_on_drop: false }`
[INFO] [stdout] b21c593204a1e7f24b5f3427e1364b74543471a292d275c3def5263454b26a86