[INFO] cloning repository https://github.com/rust-osdev/virtio-spec-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-osdev/virtio-spec-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-osdev%2Fvirtio-spec-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-osdev%2Fvirtio-spec-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3e5b5761f1814a1a2bd388f48f3adaa46b5d308a
[INFO] checking rust-osdev/virtio-spec-rs against master#64b185eddaa1d7ddf5e0c024be23b9cbba6c1722 for pr-143929
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-osdev%2Fvirtio-spec-rs" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rust-osdev/virtio-spec-rs
[INFO] finished tweaking git repo https://github.com/rust-osdev/virtio-spec-rs
[INFO] tweaked toml for git repo https://github.com/rust-osdev/virtio-spec-rs written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rust-osdev/virtio-spec-rs on toolchain 64b185eddaa1d7ddf5e0c024be23b9cbba6c1722
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rust-osdev/virtio-spec-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pci_types v0.10.0
[INFO] [stderr]   Downloaded volatile v0.6.1
[INFO] [stderr]   Downloaded bitfield-struct v0.11.0
[INFO] [stderr]   Downloaded allocator-api2 v0.3.0
[INFO] [stderr]   Downloaded endian-num v0.2.0
[INFO] [stderr]   Downloaded volatile-macro v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e9e0c88305333fe54c290739afa231e9cfb5924a007f3e813fa4dad676a173a
[INFO] running `Command { std: "docker" "start" "-a" "1e9e0c88305333fe54c290739afa231e9cfb5924a007f3e813fa4dad676a173a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e9e0c88305333fe54c290739afa231e9cfb5924a007f3e813fa4dad676a173a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e9e0c88305333fe54c290739afa231e9cfb5924a007f3e813fa4dad676a173a", kill_on_drop: false }`
[INFO] [stdout] 1e9e0c88305333fe54c290739afa231e9cfb5924a007f3e813fa4dad676a173a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ee80cf8f8596ed05032003e754869f0286f9444886b45595a18b369c0c4aa57
[INFO] running `Command { std: "docker" "start" "-a" "9ee80cf8f8596ed05032003e754869f0286f9444886b45595a18b369c0c4aa57", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling rustversion v1.0.21
[INFO] [stderr]     Checking bitflags v2.9.1
[INFO] [stderr]     Checking volatile v0.6.1
[INFO] [stderr]     Checking endian-num v0.2.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling num_enum_derive v0.7.4
[INFO] [stderr]    Compiling volatile-macro v0.6.0
[INFO] [stderr]    Compiling bitfield-struct v0.11.0
[INFO] [stderr]     Checking num_enum v0.7.4
[INFO] [stderr]     Checking virtio-spec v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.16s
[INFO] running `Command { std: "docker" "inspect" "9ee80cf8f8596ed05032003e754869f0286f9444886b45595a18b369c0c4aa57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ee80cf8f8596ed05032003e754869f0286f9444886b45595a18b369c0c4aa57", kill_on_drop: false }`
[INFO] [stdout] 9ee80cf8f8596ed05032003e754869f0286f9444886b45595a18b369c0c4aa57