[INFO] fetching crate virtio-drivers 0.7.5...
[INFO] checking virtio-drivers-0.7.5 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate virtio-drivers 0.7.5 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate virtio-drivers 0.7.5 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate virtio-drivers 0.7.5
[INFO] finished tweaking crates.io crate virtio-drivers 0.7.5
[INFO] tweaked toml for crates.io crate virtio-drivers 0.7.5 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c4e052b71790d773d06e96973f4e6cc7e33b94c2f782eccf54c9bc54de5189c6
[INFO] running `Command { std: "docker" "start" "-a" "c4e052b71790d773d06e96973f4e6cc7e33b94c2f782eccf54c9bc54de5189c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4e052b71790d773d06e96973f4e6cc7e33b94c2f782eccf54c9bc54de5189c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4e052b71790d773d06e96973f4e6cc7e33b94c2f782eccf54c9bc54de5189c6", kill_on_drop: false }`
[INFO] [stdout] c4e052b71790d773d06e96973f4e6cc7e33b94c2f782eccf54c9bc54de5189c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc04dd4fe8ae2eb603f0e7471f96e1f43380a8d343146bff9f7e5da01bea07bf
[INFO] running `Command { std: "docker" "start" "-a" "dc04dd4fe8ae2eb603f0e7471f96e1f43380a8d343146bff9f7e5da01bea07bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling enumn v0.1.14
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking virtio-drivers v0.7.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.80s
[INFO] running `Command { std: "docker" "inspect" "dc04dd4fe8ae2eb603f0e7471f96e1f43380a8d343146bff9f7e5da01bea07bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc04dd4fe8ae2eb603f0e7471f96e1f43380a8d343146bff9f7e5da01bea07bf", kill_on_drop: false }`
[INFO] [stdout] dc04dd4fe8ae2eb603f0e7471f96e1f43380a8d343146bff9f7e5da01bea07bf