[INFO] fetching crate blkio 0.1.0...
[INFO] checking blkio-0.1.0 against master#4a0ee3cdc66573c8b46471462db7088a89d25183 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 4a0ee3cdc66573c8b46471462db7088a89d25183
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a0ee3cdc66573c8b46471462db7088a89d25183" "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" "+4a0ee3cdc66573c8b46471462db7088a89d25183" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a0ee3cdc66573c8b46471462db7088a89d25183" "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 cfg-if v1.0.0
[INFO] [stderr]   Downloaded bitflags v1.3.2
[INFO] [stderr]   Downloaded memmap v0.7.0
[INFO] [stderr]   Downloaded nix v0.24.2
[INFO] [stderr]   Downloaded libc v0.2.134
[INFO] [stderr]   Downloaded quote v1.0.21
[INFO] [stderr]   Downloaded concat-idents v1.1.3
[INFO] [stderr]   Downloaded autocfg v1.1.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.46
[INFO] [stderr]   Downloaded const-cstr v0.3.0
[INFO] [stderr]   Downloaded unicode-ident v1.0.4
[INFO] [stderr]   Downloaded memoffset v0.6.5
[INFO] [stderr]   Downloaded io-uring v0.5.6
[INFO] [stderr]   Downloaded memfd v0.4.1
[INFO] [stderr]   Downloaded syn v1.0.101
[INFO] [stderr]   Downloaded virtio-bindings v0.1.0
[INFO] [stderr]   Downloaded virtio-driver v0.2.0
[INFO] [stderr]   Downloaded winapi v0.3.9
[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" "+4a0ee3cdc66573c8b46471462db7088a89d25183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc465010186844c68e2a103ddc8494b24fecdadafcc81baa240b0d8c4a6bb0dd
[INFO] running `Command { std: "docker" "start" "-a" "cc465010186844c68e2a103ddc8494b24fecdadafcc81baa240b0d8c4a6bb0dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc465010186844c68e2a103ddc8494b24fecdadafcc81baa240b0d8c4a6bb0dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc465010186844c68e2a103ddc8494b24fecdadafcc81baa240b0d8c4a6bb0dd", kill_on_drop: false }`
[INFO] [stdout] cc465010186844c68e2a103ddc8494b24fecdadafcc81baa240b0d8c4a6bb0dd
[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" "+4a0ee3cdc66573c8b46471462db7088a89d25183" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bcc6783ba650c8a439a4b20963f4fcc8baf8738168de3004f2c7c62ec2cab82
[INFO] running `Command { std: "docker" "start" "-a" "1bcc6783ba650c8a439a4b20963f4fcc8baf8738168de3004f2c7c62ec2cab82", 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]    Compiling syn v1.0.101
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling io-uring v0.5.6
[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 memmap v0.7.0
[INFO] [stderr]     Checking memfd v0.4.1
[INFO] [stderr]     Checking nix v0.24.2
[INFO] [stderr]    Compiling concat-idents v1.1.3
[INFO] [stderr]     Checking virtio-driver v0.2.0
[INFO] [stderr]     Checking blkio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.00s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: virtio-driver v0.2.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "1bcc6783ba650c8a439a4b20963f4fcc8baf8738168de3004f2c7c62ec2cab82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bcc6783ba650c8a439a4b20963f4fcc8baf8738168de3004f2c7c62ec2cab82", kill_on_drop: false }`
[INFO] [stdout] 1bcc6783ba650c8a439a4b20963f4fcc8baf8738168de3004f2c7c62ec2cab82