[INFO] fetching crate krust 0.0.1...
[INFO] checking krust-0.0.1 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] extracting crate krust 0.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate krust 0.0.1 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1498f32f2ad8e8d5df55e2b3b359d967548547cb1d8165d53fc0c12cb7e874ec
[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" "1498f32f2ad8e8d5df55e2b3b359d967548547cb1d8165d53fc0c12cb7e874ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1498f32f2ad8e8d5df55e2b3b359d967548547cb1d8165d53fc0c12cb7e874ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1498f32f2ad8e8d5df55e2b3b359d967548547cb1d8165d53fc0c12cb7e874ec", kill_on_drop: false }`
[INFO] [stdout] 1498f32f2ad8e8d5df55e2b3b359d967548547cb1d8165d53fc0c12cb7e874ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6468d4843119fc1bc23b79fe842b361624205d185dde44f6801f664d40502ba
[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" "c6468d4843119fc1bc23b79fe842b361624205d185dde44f6801f664d40502ba", kill_on_drop: false }`
[INFO] [stderr]     Checking krust v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type alias is never used: `VkMemoryMapFlags`
[INFO] [stdout]    --> src/vk/flags.rs:124:1
[INFO] [stdout]     |
[INFO] [stdout] 124 | pub type VkMemoryMapFlags = VkFlags;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `VkMemoryMapFlags`
[INFO] [stdout]    --> src/vk/flags.rs:124:1
[INFO] [stdout]     |
[INFO] [stdout] 124 | pub type VkMemoryMapFlags = VkFlags;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "c6468d4843119fc1bc23b79fe842b361624205d185dde44f6801f664d40502ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6468d4843119fc1bc23b79fe842b361624205d185dde44f6801f664d40502ba", kill_on_drop: false }`
[INFO] [stdout] c6468d4843119fc1bc23b79fe842b361624205d185dde44f6801f664d40502ba