[INFO] fetching crate usb_enumeration 0.1.0...
[INFO] testing usb_enumeration-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate usb_enumeration 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate usb_enumeration 0.1.0 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 usb_enumeration 0.1.0
[INFO] finished tweaking crates.io crate usb_enumeration 0.1.0
[INFO] tweaked toml for crates.io crate usb_enumeration 0.1.0 written to /workspace/builds/worker-2/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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 3cf579624e0ba2f56e0de32e9abf9c4430e6c7c321349a68b11cd5fd3869e82c
[INFO] running `Command { std: "docker" "start" "-a" "3cf579624e0ba2f56e0de32e9abf9c4430e6c7c321349a68b11cd5fd3869e82c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cf579624e0ba2f56e0de32e9abf9c4430e6c7c321349a68b11cd5fd3869e82c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cf579624e0ba2f56e0de32e9abf9c4430e6c7c321349a68b11cd5fd3869e82c", kill_on_drop: false }`
[INFO] [stdout] 3cf579624e0ba2f56e0de32e9abf9c4430e6c7c321349a68b11cd5fd3869e82c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9911914f1c4a2585d1991c498f726dbaeadfcb83f62ecaeb9028ee1429cfef65
[INFO] running `Command { std: "docker" "start" "-a" "9911914f1c4a2585d1991c498f726dbaeadfcb83f62ecaeb9028ee1429cfef65", kill_on_drop: false }`
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling crossbeam v0.8.0
[INFO] [stderr]    Compiling udev v0.5.1
[INFO] [stderr]    Compiling usb_enumeration v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.94s
[INFO] running `Command { std: "docker" "inspect" "9911914f1c4a2585d1991c498f726dbaeadfcb83f62ecaeb9028ee1429cfef65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9911914f1c4a2585d1991c498f726dbaeadfcb83f62ecaeb9028ee1429cfef65", kill_on_drop: false }`
[INFO] [stdout] 9911914f1c4a2585d1991c498f726dbaeadfcb83f62ecaeb9028ee1429cfef65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] f5c44fdc235ac0573bf3812a650d6dbae8b0eb7b006b60ebbc8538a63fe17dfb
[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" "f5c44fdc235ac0573bf3812a650d6dbae8b0eb7b006b60ebbc8538a63fe17dfb", kill_on_drop: false }`
[INFO] [stderr]    Compiling usb_enumeration v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.71s
[INFO] running `Command { std: "docker" "inspect" "f5c44fdc235ac0573bf3812a650d6dbae8b0eb7b006b60ebbc8538a63fe17dfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5c44fdc235ac0573bf3812a650d6dbae8b0eb7b006b60ebbc8538a63fe17dfb", kill_on_drop: false }`
[INFO] [stdout] f5c44fdc235ac0573bf3812a650d6dbae8b0eb7b006b60ebbc8538a63fe17dfb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 0032b3bbe643c5987969bf0f8a8898c43c5f0be0e3071e3a8ca5a5ff9526077a
[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" "0032b3bbe643c5987969bf0f8a8898c43c5f0be0e3071e3a8ca5a5ff9526077a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/usb_enumeration-a572deb4cf663abc
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_enumerate ... FAILED
[INFO] [stdout] test tests::test_subscribe ... test tests::test_subscribe has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "0032b3bbe643c5987969bf0f8a8898c43c5f0be0e3071e3a8ca5a5ff9526077a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0032b3bbe643c5987969bf0f8a8898c43c5f0be0e3071e3a8ca5a5ff9526077a", kill_on_drop: false }`
[INFO] [stdout] 0032b3bbe643c5987969bf0f8a8898c43c5f0be0e3071e3a8ca5a5ff9526077a