[INFO] fetching crate egui-latest_wgpu_backend 0.18.3...
[INFO] checking egui-latest_wgpu_backend-0.18.3 against try#388b725dea7416978ab58ab1f908139d530308a7 for pr-99943
[INFO] extracting crate egui-latest_wgpu_backend 0.18.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate egui-latest_wgpu_backend 0.18.3 on toolchain 388b725dea7416978ab58ab1f908139d530308a7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+388b725dea7416978ab58ab1f908139d530308a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate egui-latest_wgpu_backend 0.18.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate egui-latest_wgpu_backend 0.18.3
[INFO] tweaked toml for crates.io crate egui-latest_wgpu_backend 0.18.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate egui-latest_wgpu_backend 0.18.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+388b725dea7416978ab58ab1f908139d530308a7" "fetch" "--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-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+388b725dea7416978ab58ab1f908139d530308a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 918aeede569a363a6e3ad215e3163d91c53c27535ae4878de8b8fec8d2ea25a8
[INFO] running `Command { std: "docker" "start" "-a" "918aeede569a363a6e3ad215e3163d91c53c27535ae4878de8b8fec8d2ea25a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "918aeede569a363a6e3ad215e3163d91c53c27535ae4878de8b8fec8d2ea25a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "918aeede569a363a6e3ad215e3163d91c53c27535ae4878de8b8fec8d2ea25a8", kill_on_drop: false }`
[INFO] [stdout] 918aeede569a363a6e3ad215e3163d91c53c27535ae4878de8b8fec8d2ea25a8
[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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+388b725dea7416978ab58ab1f908139d530308a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb6777c3076e22c58e860dd71c3d626432927d6e7c6a707a089b15e319485eba
[INFO] running `Command { std: "docker" "start" "-a" "eb6777c3076e22c58e860dd71c3d626432927d6e7c6a707a089b15e319485eba", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]     Checking libloading v0.7.3
[INFO] [stderr]     Checking ttf-parser v0.15.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.5
[INFO] [stderr]     Checking raw-window-handle v0.4.3
[INFO] [stderr]     Checking tracing-core v0.1.26
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking nohash-hasher v0.2.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling khronos-egl v4.1.0
[INFO] [stderr]    Compiling ash v0.37.0+1.3.209
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking gpu-alloc-types v0.2.0
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]     Checking gpu-descriptor-types v0.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]     Checking hexf-parse v0.2.1
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking owned_ttf_parser v0.15.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling wayland-scanner v0.29.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling wayland-sys v0.29.4
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]     Checking unicode-xid v0.2.3
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking ab_glyph v0.2.15
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling smithay-client-toolkit v0.15.4
[INFO] [stderr]    Compiling x11-dl v2.19.1
[INFO] [stderr]    Compiling wgpu-core v0.13.1
[INFO] [stderr]     Checking gpu-alloc v0.5.3
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking xcursor v0.3.4
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking wgpu-types v0.13.0
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking renderdoc-sys v0.7.1
[INFO] [stderr]     Checking inplace_it v0.3.3
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]     Checking nix v0.22.3
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking glow v0.11.2
[INFO] [stderr]     Checking profiling v1.0.6
[INFO] [stderr]    Compiling wayland-client v0.29.4
[INFO] [stderr]    Compiling wayland-protocols v0.29.4
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking memmap2 v0.3.1
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking gethostname v0.2.3
[INFO] [stderr]     Checking gpu-descriptor v0.2.2
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]    Compiling winit v0.26.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking mio v0.8.3
[INFO] [stderr]     Checking unicode_names2 v0.5.0
[INFO] [stderr]     Checking spirv v0.2.0+1.5.4
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking pollster v0.2.5
[INFO] [stderr]     Checking webbrowser v0.7.1
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.96/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=2318b71e61d87a0e -C extra-filename=-2318b71e61d87a0e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-8cb96000c96f9250.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-6531c3c818581e12.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-b3c3eb1ebc033cd2.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "eb6777c3076e22c58e860dd71c3d626432927d6e7c6a707a089b15e319485eba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb6777c3076e22c58e860dd71c3d626432927d6e7c6a707a089b15e319485eba", kill_on_drop: false }`
[INFO] [stdout] eb6777c3076e22c58e860dd71c3d626432927d6e7c6a707a089b15e319485eba