[INFO] fetching crate dbus-async 2.0.0...
[INFO] testing dbus-async-2.0.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate dbus-async 2.0.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate dbus-async 2.0.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dbus-async 2.0.0
[INFO] finished tweaking crates.io crate dbus-async 2.0.0
[INFO] tweaked toml for crates.io crate dbus-async 2.0.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate dbus-async 2.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mio v0.7.5
[INFO] [stderr]   Downloaded tokio v0.3.3
[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" "+beta-2021-01-01" "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] 1e048e59bd5f2689a9327ef9efdfe4b49b14dcc61b953713d2c8762f04f49e7e
[INFO] running `Command { std: "docker" "start" "-a" "1e048e59bd5f2689a9327ef9efdfe4b49b14dcc61b953713d2c8762f04f49e7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e048e59bd5f2689a9327ef9efdfe4b49b14dcc61b953713d2c8762f04f49e7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e048e59bd5f2689a9327ef9efdfe4b49b14dcc61b953713d2c8762f04f49e7e", kill_on_drop: false }`
[INFO] [stdout] 1e048e59bd5f2689a9327ef9efdfe4b49b14dcc61b953713d2c8762f04f49e7e
[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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a2ff2bed6bd2c9b0cd4c967989da1d28774ebc369d6a70302d62d0f5b29de4a
[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" "1a2ff2bed6bd2c9b0cd4c967989da1d28774ebc369d6a70302d62d0f5b29de4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling ahash v0.4.6
[INFO] [stderr]    Compiling retain_mut v0.1.1
[INFO] [stderr]    Compiling tokio v0.3.3
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling lru v0.6.1
[INFO] [stderr]    Compiling mio v0.7.5
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling tokio-macros v0.3.1
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling dbus-message-parser v3.1.0
[INFO] [stderr]    Compiling pin-project v1.0.1
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]    Compiling dbus-async v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.49s
[INFO] running `Command { std: "docker" "inspect" "1a2ff2bed6bd2c9b0cd4c967989da1d28774ebc369d6a70302d62d0f5b29de4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a2ff2bed6bd2c9b0cd4c967989da1d28774ebc369d6a70302d62d0f5b29de4a", kill_on_drop: false }`
[INFO] [stdout] 1a2ff2bed6bd2c9b0cd4c967989da1d28774ebc369d6a70302d62d0f5b29de4a
[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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b7a2fcd7ef223953902b2e575d1be4eec27571bffaaafb2978f8bc98c309e5e
[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" "2b7a2fcd7ef223953902b2e575d1be4eec27571bffaaafb2978f8bc98c309e5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling dbus-async v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `dbus-async`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name track_interfaces --edition=2018 examples/track_interfaces.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=0d3f2ef1fb6b64ca -C extra-filename=-0d3f2ef1fb6b64ca --out-dir /opt/rustwide/target/debug/examples -L dependency=/opt/rustwide/target/debug/deps --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-6bd47860c6419324.so --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-8a5476fab5bb3232.rlib --extern bytes=/opt/rustwide/target/debug/deps/libbytes-b6b4c8e8fea7606c.rlib --extern dbus_async=/opt/rustwide/target/debug/deps/libdbus_async-ef9bdf0cc0d4ccbc.rlib --extern dbus_message_parser=/opt/rustwide/target/debug/deps/libdbus_message_parser-9c7481397541e1cd.rlib --extern futures=/opt/rustwide/target/debug/deps/libfutures-72b950aa185e764e.rlib --extern hex=/opt/rustwide/target/debug/deps/libhex-14911843fdb620d9.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-b2d06f7d60fcbb27.rlib --extern libc=/opt/rustwide/target/debug/deps/liblibc-3d9721a098b165bd.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-d6d50815b8652f33.rlib --extern lru=/opt/rustwide/target/debug/deps/liblru-81873deeca9613c0.rlib --extern regex=/opt/rustwide/target/debug/deps/libregex-88a1e75c7e2bfbce.rlib --extern retain_mut=/opt/rustwide/target/debug/deps/libretain_mut-819d7ea6605e0de3.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-077e4e8db075c320.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2b7a2fcd7ef223953902b2e575d1be4eec27571bffaaafb2978f8bc98c309e5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b7a2fcd7ef223953902b2e575d1be4eec27571bffaaafb2978f8bc98c309e5e", kill_on_drop: false }`
[INFO] [stdout] 2b7a2fcd7ef223953902b2e575d1be4eec27571bffaaafb2978f8bc98c309e5e