[INFO] fetching crate egui_vulkano 0.3.0...
[INFO] testing egui_vulkano-0.3.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate egui_vulkano 0.3.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate egui_vulkano 0.3.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate egui_vulkano 0.3.0
[INFO] finished tweaking crates.io crate egui_vulkano 0.3.0
[INFO] tweaked toml for crates.io crate egui_vulkano 0.3.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate egui_vulkano 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44254c674bdcbe6ee23f581aa83c0c2cb374dfc83146778a99f74ea9d767d835
[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" "44254c674bdcbe6ee23f581aa83c0c2cb374dfc83146778a99f74ea9d767d835", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44254c674bdcbe6ee23f581aa83c0c2cb374dfc83146778a99f74ea9d767d835", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44254c674bdcbe6ee23f581aa83c0c2cb374dfc83146778a99f74ea9d767d835", kill_on_drop: false }`
[INFO] [stdout] 44254c674bdcbe6ee23f581aa83c0c2cb374dfc83146778a99f74ea9d767d835
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 603a35f86d9e8578a544c9ac4d847172908d87e730c007d9594b8a069408820e
[INFO] running `Command { std: "docker" "start" "-a" "603a35f86d9e8578a544c9ac4d847172908d87e730c007d9594b8a069408820e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling ttf-parser v0.12.2
[INFO] [stderr]    Compiling once_cell v1.7.0
[INFO] [stderr]    Compiling atomic_refcell v0.1.6
[INFO] [stderr]    Compiling emath v0.13.0
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling ahash v0.7.1
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling vk-parse v0.6.0
[INFO] [stderr]    Compiling ash v0.33.0+1.2.186
[INFO] [stderr]    Compiling ordered-float v2.1.1
[INFO] [stderr]    Compiling spirv_headers v1.5.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.1
[INFO] [stderr]    Compiling shaderc-sys v0.7.1
[INFO] [stderr]    Compiling vulkano v0.25.0
[INFO] [stderr]    Compiling owned_ttf_parser v0.12.0
[INFO] [stderr]    Compiling ab_glyph v0.2.11
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling epaint v0.13.0
[INFO] [stderr] error: could not compile `ash`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name ash --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ash-0.33.0+1.2.186/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="libloading"' -C metadata=3336ae5a240a9a8a -C extra-filename=-3336ae5a240a9a8a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern libloading=/opt/rustwide/target/debug/deps/liblibloading-c98e31a28bc7d3ae.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: shaderc: searching for native shaderc libraries on system;  use '--features build-from-source' to force building from source code
[INFO] [stderr] warning: shaderc: cannot find native shaderc library on system; falling back to build from source
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "603a35f86d9e8578a544c9ac4d847172908d87e730c007d9594b8a069408820e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "603a35f86d9e8578a544c9ac4d847172908d87e730c007d9594b8a069408820e", kill_on_drop: false }`
[INFO] [stdout] 603a35f86d9e8578a544c9ac4d847172908d87e730c007d9594b8a069408820e