[INFO] fetching crate usb-device 0.2.7...
[INFO] testing usb-device-0.2.7 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate usb-device 0.2.7 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate usb-device 0.2.7 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 usb-device 0.2.7
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate usb-device 0.2.7
[INFO] tweaked toml for crates.io crate usb-device 0.2.7 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a645d53bc225fe8d89a23bf9d461806caca4605ce31ac191b7bd8ac5aac7e9a
[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" "9a645d53bc225fe8d89a23bf9d461806caca4605ce31ac191b7bd8ac5aac7e9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a645d53bc225fe8d89a23bf9d461806caca4605ce31ac191b7bd8ac5aac7e9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a645d53bc225fe8d89a23bf9d461806caca4605ce31ac191b7bd8ac5aac7e9a", kill_on_drop: false }`
[INFO] [stdout] 9a645d53bc225fe8d89a23bf9d461806caca4605ce31ac191b7bd8ac5aac7e9a
[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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf893d4269463044594fa13d21a6d64e8822ab9163605256f9e1013464c79e56
[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" "cf893d4269463044594fa13d21a6d64e8822ab9163605256f9e1013464c79e56", kill_on_drop: false }`
[INFO] [stderr]    Compiling usb-device v0.2.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "cf893d4269463044594fa13d21a6d64e8822ab9163605256f9e1013464c79e56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf893d4269463044594fa13d21a6d64e8822ab9163605256f9e1013464c79e56", kill_on_drop: false }`
[INFO] [stdout] cf893d4269463044594fa13d21a6d64e8822ab9163605256f9e1013464c79e56
[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" "+beta-2021-01-01" "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] 69e0bc07bebbf1b9440d3918d0d436dba42f7a9b65a003834e7c75842e8e4e0b
[INFO] running `Command { std: "docker" "start" "-a" "69e0bc07bebbf1b9440d3918d0d436dba42f7a9b65a003834e7c75842e8e4e0b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libusb-sys v0.2.3
[INFO] [stderr]    Compiling bit-set v0.2.0
[INFO] [stderr]    Compiling libusb v0.3.0
[INFO] [stderr]    Compiling usb-device v0.2.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.80s
[INFO] running `Command { std: "docker" "inspect" "69e0bc07bebbf1b9440d3918d0d436dba42f7a9b65a003834e7c75842e8e4e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69e0bc07bebbf1b9440d3918d0d436dba42f7a9b65a003834e7c75842e8e4e0b", kill_on_drop: false }`
[INFO] [stdout] 69e0bc07bebbf1b9440d3918d0d436dba42f7a9b65a003834e7c75842e8e4e0b
[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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 23298235dceae25884798809efcc3984bf54ecea5da0bc72d79845fdf56ddec2
[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" "23298235dceae25884798809efcc3984bf54ecea5da0bc72d79845fdf56ddec2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/usb_device-1827e9717d244d03
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test_class_host-700d21dd2503edd6
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] test_class_host starting
[INFO] [stdout] looking for device...
[INFO] [stderr]    Doc-tests usb-device
[INFO] [stdout] Did not find a TestClass device. Make sure the device is correctly programmed and plugged in. Last error: No such device (it may have been disconnected)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/device.rs - device::UsbDevice::poll (line 145) ... ignored
[INFO] [stdout] test src/lib.rs - device (line 131) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "23298235dceae25884798809efcc3984bf54ecea5da0bc72d79845fdf56ddec2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23298235dceae25884798809efcc3984bf54ecea5da0bc72d79845fdf56ddec2", kill_on_drop: false }`
[INFO] [stdout] 23298235dceae25884798809efcc3984bf54ecea5da0bc72d79845fdf56ddec2