[INFO] fetching crate blkio 0.1.0...
[INFO] checking blkio-0.1.0 against try#c34df645207dd0b6887b2312cf109109ba3a0ffb for pr-102513-1
[INFO] extracting crate blkio 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate blkio 0.1.0 on toolchain c34df645207dd0b6887b2312cf109109ba3a0ffb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c34df645207dd0b6887b2312cf109109ba3a0ffb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blkio 0.1.0
[INFO] finished tweaking crates.io crate blkio 0.1.0
[INFO] tweaked toml for crates.io crate blkio 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c34df645207dd0b6887b2312cf109109ba3a0ffb" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c34df645207dd0b6887b2312cf109109ba3a0ffb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+c34df645207dd0b6887b2312cf109109ba3a0ffb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0205f4ff11fad8074f8a79e41019eeb305a8a79f443324d483ff200a5563cb6a
[INFO] running `Command { std: "docker" "start" "-a" "0205f4ff11fad8074f8a79e41019eeb305a8a79f443324d483ff200a5563cb6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0205f4ff11fad8074f8a79e41019eeb305a8a79f443324d483ff200a5563cb6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0205f4ff11fad8074f8a79e41019eeb305a8a79f443324d483ff200a5563cb6a", kill_on_drop: false }`
[INFO] [stdout] 0205f4ff11fad8074f8a79e41019eeb305a8a79f443324d483ff200a5563cb6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+c34df645207dd0b6887b2312cf109109ba3a0ffb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b31a115fc09c591560bd1afa5b32a7a30c96106b4aefb4bea987fcea61bf742
[INFO] running `Command { std: "docker" "start" "-a" "9b31a115fc09c591560bd1afa5b32a7a30c96106b4aefb4bea987fcea61bf742", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling io-uring v0.5.6
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking virtio-bindings v0.1.0
[INFO] [stderr]     Checking const-cstr v0.3.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking memfd v0.4.1
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking nix v0.24.2
[INFO] [stderr]    Compiling concat-idents v1.1.3
[INFO] [stderr]     Checking virtio-driver v0.2.0
[INFO] [stdout] error[E0791]: reference to packed field is unaligned
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/virtio-driver-0.2.0/src/vhost_user/vhost_user_protocol.rs:258:17
[INFO] [stdout]     |
[INFO] [stdout] 258 |                 &self.payload as *const VhostUserPayload as *mut u8,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
[INFO] [stdout]     = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0791`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `virtio-driver` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9b31a115fc09c591560bd1afa5b32a7a30c96106b4aefb4bea987fcea61bf742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b31a115fc09c591560bd1afa5b32a7a30c96106b4aefb4bea987fcea61bf742", kill_on_drop: false }`
[INFO] [stdout] 9b31a115fc09c591560bd1afa5b32a7a30c96106b4aefb4bea987fcea61bf742