[INFO] fetching crate amethyst_utils 0.15.3...
[INFO] checking amethyst_utils-0.15.3 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate amethyst_utils 0.15.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate amethyst_utils 0.15.3 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate amethyst_utils 0.15.3
[INFO] finished tweaking crates.io crate amethyst_utils 0.15.3
[INFO] tweaked toml for crates.io crate amethyst_utils 0.15.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee8f99000886a5a72e77b3db4058487f2d762164e519aa8c18c7c41428f26c91
[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" "ee8f99000886a5a72e77b3db4058487f2d762164e519aa8c18c7c41428f26c91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee8f99000886a5a72e77b3db4058487f2d762164e519aa8c18c7c41428f26c91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee8f99000886a5a72e77b3db4058487f2d762164e519aa8c18c7c41428f26c91", kill_on_drop: false }`
[INFO] [stdout] ee8f99000886a5a72e77b3db4058487f2d762164e519aa8c18c7c41428f26c91
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e35ec0a9d01348e16f7bc77e09ce30d224443841c404e439dd4e47a4ae2a90fe
[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" "e35ec0a9d01348e16f7bc77e09ce30d224443841c404e439dd4e47a4ae2a90fe", kill_on_drop: false }`
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[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling amethyst_derive v0.15.3
[INFO] [stderr]     Checking gltf v0.15.2
[INFO] [stderr]     Checking rendy-util v0.4.1
[INFO] [stderr]     Checking rendy-descriptor v0.4.1
[INFO] [stderr]     Checking rendy-memory v0.4.1
[INFO] [stderr]     Checking rendy-chain v0.4.1
[INFO] [stderr]     Checking rendy-resource v0.4.1
[INFO] [stderr]     Checking rendy-command v0.4.1
[INFO] [stderr]     Checking rendy-wsi v0.4.1
[INFO] [stderr]     Checking rendy-factory v0.4.1
[INFO] [stderr]     Checking rendy-shader v0.4.1
[INFO] [stderr]     Checking rendy-frame v0.4.1
[INFO] [stderr]     Checking rendy-mesh v0.4.1
[INFO] [stderr]     Checking rendy-texture v0.4.1
[INFO] [stderr]     Checking rendy-graph v0.4.1
[INFO] [stderr]     Checking rendy v0.4.1
[INFO] [stderr]     Checking amethyst_core v0.15.3
[INFO] [stderr]     Checking amethyst_window v0.15.3
[INFO] [stderr]     Checking amethyst_assets v0.15.3
[INFO] [stderr]     Checking amethyst_input v0.15.3
[INFO] [stderr]     Checking amethyst_rendy v0.15.3
[INFO] [stderr]     Checking amethyst_controls v0.15.3
[INFO] [stdout] error: You must specify at least one graphical backend feature: "metal", "vulkan", "empty"
[INFO] [stdout] "See the wiki article https://book.amethyst.rs/stable/appendices/c_feature_gates.html#graphics-features for more details."
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/amethyst_rendy-0.15.3/src/types.rs:112:1
[INFO] [stdout]     |
[INFO] [stdout] 112 | / impl_backends!(
[INFO] [stdout] 113 | |     // DirectX 12 is currently disabled because of incomplete gfx-hal support for it.
[INFO] [stdout] 114 | |     // It will be re-enabled when it actually works.
[INFO] [stdout] 115 | |     // Dx12, "dx12", rendy::dx12::Backend;
[INFO] [stdout] ...   |
[INFO] [stdout] 118 | |     Empty, "empty", rendy::empty::Backend;
[INFO] [stdout] 119 | | );
[INFO] [stdout]     | |__^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `amethyst_rendy`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "e35ec0a9d01348e16f7bc77e09ce30d224443841c404e439dd4e47a4ae2a90fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e35ec0a9d01348e16f7bc77e09ce30d224443841c404e439dd4e47a4ae2a90fe", kill_on_drop: false }`
[INFO] [stdout] e35ec0a9d01348e16f7bc77e09ce30d224443841c404e439dd4e47a4ae2a90fe