[INFO] fetching crate bufferoverflow-sys 0.0.1...
[INFO] testing bufferoverflow-sys-0.0.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate bufferoverflow-sys 0.0.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate bufferoverflow-sys 0.0.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bufferoverflow-sys 0.0.1
[INFO] finished tweaking crates.io crate bufferoverflow-sys 0.0.1
[INFO] tweaked toml for crates.io crate bufferoverflow-sys 0.0.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd93f8c9b39baba48917e084c8ffb733c00938095b0a8b867f59b49a1110f0a0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fd93f8c9b39baba48917e084c8ffb733c00938095b0a8b867f59b49a1110f0a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd93f8c9b39baba48917e084c8ffb733c00938095b0a8b867f59b49a1110f0a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd93f8c9b39baba48917e084c8ffb733c00938095b0a8b867f59b49a1110f0a0", kill_on_drop: false }`
[INFO] [stdout] fd93f8c9b39baba48917e084c8ffb733c00938095b0a8b867f59b49a1110f0a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1f6eade43f2c619371fb40b2b5006e7b8c49499eb88f55120a65e963fa942d0c
[INFO] running `Command { std: "docker" "start" "-a" "1f6eade43f2c619371fb40b2b5006e7b8c49499eb88f55120a65e963fa942d0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling bufferoverflow-sys v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]  --> src/lib.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![experimental]
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `winapi::*`
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use winapi::*;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bufferoverflow-sys` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "1f6eade43f2c619371fb40b2b5006e7b8c49499eb88f55120a65e963fa942d0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f6eade43f2c619371fb40b2b5006e7b8c49499eb88f55120a65e963fa942d0c", kill_on_drop: false }`
[INFO] [stdout] 1f6eade43f2c619371fb40b2b5006e7b8c49499eb88f55120a65e963fa942d0c