[INFO] fetching crate vhost 0.3.0...
[INFO] testing vhost-0.3.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate vhost 0.3.0 into /workspace/builds/worker-16/source
[INFO] validating manifest of crates.io crate vhost 0.3.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-16/source/.cargo/config
[INFO] started tweaking crates.io crate vhost 0.3.0
[INFO] finished tweaking crates.io crate vhost 0.3.0
[INFO] tweaked toml for crates.io crate vhost 0.3.0 written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serial_test_derive v0.5.1
[INFO] [stderr]   Downloaded serial_test v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6480a38bd1e3a301552a7a9c071005fee87f12a08d7f70dec6326ba879ee5864
[INFO] running `Command { std: "docker" "start" "-a" "6480a38bd1e3a301552a7a9c071005fee87f12a08d7f70dec6326ba879ee5864", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6480a38bd1e3a301552a7a9c071005fee87f12a08d7f70dec6326ba879ee5864", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6480a38bd1e3a301552a7a9c071005fee87f12a08d7f70dec6326ba879ee5864", kill_on_drop: false }`
[INFO] [stdout] 6480a38bd1e3a301552a7a9c071005fee87f12a08d7f70dec6326ba879ee5864
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6547eaacea6f18879f2a944740e28327ee052b00d5f49bdd3a53d884351836a8
[INFO] running `Command { std: "docker" "start" "-a" "6547eaacea6f18879f2a944740e28327ee052b00d5f49bdd3a53d884351836a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling vmm-sys-util v0.9.0
[INFO] [stderr]    Compiling vm-memory v0.7.0
[INFO] [stderr]    Compiling vhost v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "6547eaacea6f18879f2a944740e28327ee052b00d5f49bdd3a53d884351836a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6547eaacea6f18879f2a944740e28327ee052b00d5f49bdd3a53d884351836a8", kill_on_drop: false }`
[INFO] [stdout] 6547eaacea6f18879f2a944740e28327ee052b00d5f49bdd3a53d884351836a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2711f819f3a39b1a826fe9b013bdf8ab4c17c5f0a3c4225e357454a8c7a863d
[INFO] running `Command { std: "docker" "start" "-a" "b2711f819f3a39b1a826fe9b013bdf8ab4c17c5f0a3c4225e357454a8c7a863d", kill_on_drop: false }`
[INFO] [stderr]    Compiling serial_test_derive v0.5.1
[INFO] [stderr]    Compiling serial_test v0.5.1
[INFO] [stderr]    Compiling vhost v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.19s
[INFO] running `Command { std: "docker" "inspect" "b2711f819f3a39b1a826fe9b013bdf8ab4c17c5f0a3c4225e357454a8c7a863d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2711f819f3a39b1a826fe9b013bdf8ab4c17c5f0a3c4225e357454a8c7a863d", kill_on_drop: false }`
[INFO] [stdout] b2711f819f3a39b1a826fe9b013bdf8ab4c17c5f0a3c4225e357454a8c7a863d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bc20ba78890e83e107a6d55052959f07049ed6afd08a04d2609dfdfded01572c
[INFO] running `Command { std: "docker" "start" "-a" "bc20ba78890e83e107a6d55052959f07049ed6afd08a04d2609dfdfded01572c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/vhost-4acf5e3b380d4c42)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test backend::tests::test_vring_config_data ... ok
[INFO] [stdout] test tests::test_error ... ok
[INFO] [stdout] test backend::tests::test_vring_backend_mut ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests vhost
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bc20ba78890e83e107a6d55052959f07049ed6afd08a04d2609dfdfded01572c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc20ba78890e83e107a6d55052959f07049ed6afd08a04d2609dfdfded01572c", kill_on_drop: false }`
[INFO] [stdout] bc20ba78890e83e107a6d55052959f07049ed6afd08a04d2609dfdfded01572c