[INFO] fetching crate vk-sys 0.5.2...
[INFO] checking vk-sys-0.5.2 against master#ffa2e7ae8fbf9badc035740db949b9dae271c29f for pr-78338
[INFO] extracting crate vk-sys 0.5.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate vk-sys 0.5.2 on toolchain ffa2e7ae8fbf9badc035740db949b9dae271c29f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vk-sys 0.5.2
[INFO] finished tweaking crates.io crate vk-sys 0.5.2
[INFO] tweaked toml for crates.io crate vk-sys 0.5.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f07c70c7027753326fb3d3b444ca4f8cdaba40569e316e8dc0ca85fc6e5956b2
[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" "f07c70c7027753326fb3d3b444ca4f8cdaba40569e316e8dc0ca85fc6e5956b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f07c70c7027753326fb3d3b444ca4f8cdaba40569e316e8dc0ca85fc6e5956b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f07c70c7027753326fb3d3b444ca4f8cdaba40569e316e8dc0ca85fc6e5956b2", kill_on_drop: false }`
[INFO] [stdout] f07c70c7027753326fb3d3b444ca4f8cdaba40569e316e8dc0ca85fc6e5956b2
[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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06e1495eb1a7f40d2825b808af49b9c2cc7c1607a86293dcdbfebf242ae76bd6
[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" "06e1495eb1a7f40d2825b808af49b9c2cc7c1607a86293dcdbfebf242ae76bd6", kill_on_drop: false }`
[INFO] [stderr]     Checking vk-sys v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `[f32; 4]`, which is not FFI-safe
[INFO] [stdout]     --> src/lib.rs:2923:76
[INFO] [stdout]      |
[INFO] [stdout] 2923 |     CmdSetBlendConstants => (commandBuffer: CommandBuffer, blendConstants: [f32; 4]) -> (),
[INFO] [stdout]      |                                                                            ^^^^^^^^ not FFI-safe
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]      = help: consider passing a pointer to the array
[INFO] [stdout]      = note: passing raw arrays by value is not FFI-safe
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `[f32; 4]`, which is not FFI-safe
[INFO] [stdout]     --> src/lib.rs:2923:76
[INFO] [stdout]      |
[INFO] [stdout] 2923 |     CmdSetBlendConstants => (commandBuffer: CommandBuffer, blendConstants: [f32; 4]) -> (),
[INFO] [stdout]      |                                                                            ^^^^^^^^ not FFI-safe
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]      = help: consider passing a pointer to the array
[INFO] [stdout]      = note: passing raw arrays by value is not FFI-safe
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `Command { std: "docker" "inspect" "06e1495eb1a7f40d2825b808af49b9c2cc7c1607a86293dcdbfebf242ae76bd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06e1495eb1a7f40d2825b808af49b9c2cc7c1607a86293dcdbfebf242ae76bd6", kill_on_drop: false }`
[INFO] [stdout] 06e1495eb1a7f40d2825b808af49b9c2cc7c1607a86293dcdbfebf242ae76bd6