[INFO] fetching crate krust 0.0.1...
[INFO] documenting krust-0.0.1 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate krust 0.0.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate krust 0.0.1 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate krust 0.0.1
[INFO] finished tweaking crates.io crate krust 0.0.1
[INFO] tweaked toml for crates.io crate krust 0.0.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ccb93288bf07e4712ef347ff98a894d2369e698e78dcc48f19d4fd8b621ac7be
[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" "ccb93288bf07e4712ef347ff98a894d2369e698e78dcc48f19d4fd8b621ac7be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccb93288bf07e4712ef347ff98a894d2369e698e78dcc48f19d4fd8b621ac7be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccb93288bf07e4712ef347ff98a894d2369e698e78dcc48f19d4fd8b621ac7be", kill_on_drop: false }`
[INFO] [stdout] ccb93288bf07e4712ef347ff98a894d2369e698e78dcc48f19d4fd8b621ac7be
[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" "RUSTDOCFLAGS=--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b15a2015e2e2ee35b4ec7cb47703f5c0af28c28669452a3218b436b7aa57d0d
[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" "1b15a2015e2e2ee35b4ec7cb47703f5c0af28c28669452a3218b436b7aa57d0d", kill_on_drop: false }`
[INFO] [stderr]  Documenting krust v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` block uses type `[f32; 4]`, which is not FFI-safe
[INFO] [stdout]    --> src/vk/fns.rs:744:80
[INFO] [stdout]     |
[INFO] [stdout] 744 |     pub fn vkCmdSetBlendConstants(commandBuffer: VkCommandBuffer, blendConstants: [f32; 4]);
[INFO] [stdout]     |                                                                                   ^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(improper_ctypes)]` 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 1.33s
[INFO] running `Command { std: "docker" "inspect" "1b15a2015e2e2ee35b4ec7cb47703f5c0af28c28669452a3218b436b7aa57d0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b15a2015e2e2ee35b4ec7cb47703f5c0af28c28669452a3218b436b7aa57d0d", kill_on_drop: false }`
[INFO] [stdout] 1b15a2015e2e2ee35b4ec7cb47703f5c0af28c28669452a3218b436b7aa57d0d