[INFO] fetching crate usbd_bulk_only_transport 0.1.0...
[INFO] testing usbd_bulk_only_transport-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate usbd_bulk_only_transport 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate usbd_bulk_only_transport 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 usbd_bulk_only_transport 0.1.0
[INFO] finished tweaking crates.io crate usbd_bulk_only_transport 0.1.0
[INFO] tweaked toml for crates.io crate usbd_bulk_only_transport 0.1.0 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] 4afb8dacc85446e953c6fd05e9990da2b4d438e3856a72443e7e7cf68a0d5f61
[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" "4afb8dacc85446e953c6fd05e9990da2b4d438e3856a72443e7e7cf68a0d5f61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4afb8dacc85446e953c6fd05e9990da2b4d438e3856a72443e7e7cf68a0d5f61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4afb8dacc85446e953c6fd05e9990da2b4d438e3856a72443e7e7cf68a0d5f61", kill_on_drop: false }`
[INFO] [stdout] 4afb8dacc85446e953c6fd05e9990da2b4d438e3856a72443e7e7cf68a0d5f61
[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] 9b96bb4d4dd05eb058128aabf0c01cf681cc98c41e5eea7614e69747c52027f7
[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" "9b96bb4d4dd05eb058128aabf0c01cf681cc98c41e5eea7614e69747c52027f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling usb-device v0.2.7
[INFO] [stderr]    Compiling itm_logger v0.1.2
[INFO] [stderr]    Compiling packing_codegen v0.1.0
[INFO] [stderr]    Compiling packing v0.1.0
[INFO] [stderr]    Compiling usbd_mass_storage v0.1.0
[INFO] [stderr]    Compiling usbd_bulk_only_transport v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.97s
[INFO] running `Command { std: "docker" "inspect" "9b96bb4d4dd05eb058128aabf0c01cf681cc98c41e5eea7614e69747c52027f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b96bb4d4dd05eb058128aabf0c01cf681cc98c41e5eea7614e69747c52027f7", kill_on_drop: false }`
[INFO] [stdout] 9b96bb4d4dd05eb058128aabf0c01cf681cc98c41e5eea7614e69747c52027f7
[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] [stdout] e335e162bdb70a3ae44eeafadab8e56d1dbe6b412e86fa3955b9a6df19323acd
[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" "e335e162bdb70a3ae44eeafadab8e56d1dbe6b412e86fa3955b9a6df19323acd", kill_on_drop: false }`
[INFO] [stderr]    Compiling usbd_bulk_only_transport v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "e335e162bdb70a3ae44eeafadab8e56d1dbe6b412e86fa3955b9a6df19323acd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e335e162bdb70a3ae44eeafadab8e56d1dbe6b412e86fa3955b9a6df19323acd", kill_on_drop: false }`
[INFO] [stdout] e335e162bdb70a3ae44eeafadab8e56d1dbe6b412e86fa3955b9a6df19323acd
[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] [stdout] fd17781a3192662729caf4239579e26a0a458f8cd058068930fe2adb8dab11e6
[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" "fd17781a3192662729caf4239579e26a0a458f8cd058068930fe2adb8dab11e6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/usbd_bulk_only_transport-1fd698e6a1ae29cd
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test bulk_only_transport::command_block_wrapper::test_truncate_to_signature ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests usbd_bulk_only_transport
[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" "fd17781a3192662729caf4239579e26a0a458f8cd058068930fe2adb8dab11e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd17781a3192662729caf4239579e26a0a458f8cd058068930fe2adb8dab11e6", kill_on_drop: false }`
[INFO] [stdout] fd17781a3192662729caf4239579e26a0a458f8cd058068930fe2adb8dab11e6