[INFO] fetching crate virtio 0.0.1...
[INFO] testing virtio-0.0.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate virtio 0.0.1 into /workspace/builds/worker-63/source
[INFO] validating manifest of crates.io crate virtio 0.0.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate virtio 0.0.1
[INFO] finished tweaking crates.io crate virtio 0.0.1
[INFO] tweaked toml for crates.io crate virtio 0.0.1 written to /workspace/builds/worker-63/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11c4127da87888b22737c066981b29c2ff482a17bf59b69a130de43e892f7353
[INFO] running `Command { std: "docker" "start" "-a" "11c4127da87888b22737c066981b29c2ff482a17bf59b69a130de43e892f7353", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11c4127da87888b22737c066981b29c2ff482a17bf59b69a130de43e892f7353", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11c4127da87888b22737c066981b29c2ff482a17bf59b69a130de43e892f7353", kill_on_drop: false }`
[INFO] [stdout] 11c4127da87888b22737c066981b29c2ff482a17bf59b69a130de43e892f7353
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53900fda69a5e2f29a0e5ebfd3d153e11f9c23e1b838747700b3807d5b765fc2
[INFO] running `Command { std: "docker" "start" "-a" "53900fda69a5e2f29a0e5ebfd3d153e11f9c23e1b838747700b3807d5b765fc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling virtio v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `!` or `::`, found `le`
[INFO] [stdout]   --> src/lib.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 | macro_rules le! {
[INFO] [stdout]    |             ^^ expected one of `!` or `::`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `virtio` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "53900fda69a5e2f29a0e5ebfd3d153e11f9c23e1b838747700b3807d5b765fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53900fda69a5e2f29a0e5ebfd3d153e11f9c23e1b838747700b3807d5b765fc2", kill_on_drop: false }`
[INFO] [stdout] 53900fda69a5e2f29a0e5ebfd3d153e11f9c23e1b838747700b3807d5b765fc2