[INFO] fetching crate pixel_engine_backend 0.8.0...
[INFO] testing pixel_engine_backend-0.8.0 against try#613d1972a772987ed4ee06faccbab0e2fc839871+rustflags=-Copt-level=3 for pr-107051
[INFO] extracting crate pixel_engine_backend 0.8.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate pixel_engine_backend 0.8.0 on toolchain 613d1972a772987ed4ee06faccbab0e2fc839871
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+613d1972a772987ed4ee06faccbab0e2fc839871" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pixel_engine_backend 0.8.0
[INFO] finished tweaking crates.io crate pixel_engine_backend 0.8.0
[INFO] tweaked toml for crates.io crate pixel_engine_backend 0.8.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+613d1972a772987ed4ee06faccbab0e2fc839871" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+613d1972a772987ed4ee06faccbab0e2fc839871" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+613d1972a772987ed4ee06faccbab0e2fc839871" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ba1c32cdb73d3ee399cd16c2a81b1f8b7f5497bad7b15ceeb1d3fc811765b62
[INFO] running `Command { std: "docker" "start" "-a" "5ba1c32cdb73d3ee399cd16c2a81b1f8b7f5497bad7b15ceeb1d3fc811765b62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ba1c32cdb73d3ee399cd16c2a81b1f8b7f5497bad7b15ceeb1d3fc811765b62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ba1c32cdb73d3ee399cd16c2a81b1f8b7f5497bad7b15ceeb1d3fc811765b62", kill_on_drop: false }`
[INFO] [stdout] 5ba1c32cdb73d3ee399cd16c2a81b1f8b7f5497bad7b15ceeb1d3fc811765b62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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 -Copt-level=3" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+613d1972a772987ed4ee06faccbab0e2fc839871" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86fc3f9750138d521ec209619bef1ae04acb07ec93a88d02e07124451ba617c9
[INFO] running `Command { std: "docker" "start" "-a" "86fc3f9750138d521ec209619bef1ae04acb07ec93a88d02e07124451ba617c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling once_cell v1.17.0
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.6
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling cty v0.2.2
[INFO] [stderr]    Compiling scoped-tls v1.0.1
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling cmake v0.1.49
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling ash v0.37.2+1.3.238
[INFO] [stderr]    Compiling khronos-egl v4.1.0
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling spirv v0.2.0+1.5.4
[INFO] [stderr]    Compiling raw-window-handle v0.5.0
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling flate2 v1.0.25
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling codespan-reporting v0.11.1
[INFO] [stderr]    Compiling gpu-descriptor-types v0.1.1
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]    Compiling crossfont v0.5.1
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]    Compiling gpu-alloc-types v0.2.0
[INFO] [stderr]    Compiling foreign-types-shared v0.3.1
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling hexf-parse v0.2.1
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling nix v0.24.3
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling nix v0.25.1
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling memmap2 v0.5.8
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling gpu-descriptor v0.2.3
[INFO] [stderr]    Compiling wgpu-core v0.14.2
[INFO] [stderr]    Compiling gpu-alloc v0.5.3
[INFO] [stderr]    Compiling png v0.17.7
[INFO] [stderr]    Compiling x11-dl v2.21.0
[INFO] [stderr]    Compiling petgraph v0.6.2
[INFO] [stderr]    Compiling wayland-commons v0.29.5
[INFO] [stderr]    Compiling wgpu-types v0.14.1
[INFO] [stderr]    Compiling glow v0.11.2
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling xcursor v0.3.4
[INFO] [stderr]    Compiling renderdoc-sys v0.7.1
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling profiling v1.0.7
[INFO] [stderr]    Compiling mio v0.8.5
[INFO] [stderr]    Compiling raw-window-handle v0.4.3
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling float_next_after v1.0.0
[INFO] [stderr]    Compiling wayland-client v0.29.5
[INFO] [stderr]    Compiling wayland-protocols v0.29.5
[INFO] [stderr]    Compiling freetype-sys v0.13.1
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling freetype-rs v0.26.0
[INFO] [stderr]    Compiling servo-fontconfig v0.5.1
[INFO] [stderr]    Compiling wayland-cursor v0.29.5
[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-1.0.107/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=abae0a576ae6d7a7 -C extra-filename=-abae0a576ae6d7a7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d9fe6e0f6cdad197.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-5509efe862298d6f.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-488d9b1a6199d7b2.rmeta --cap-lints allow --cap-lints=forbid -Copt-level=3` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "86fc3f9750138d521ec209619bef1ae04acb07ec93a88d02e07124451ba617c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86fc3f9750138d521ec209619bef1ae04acb07ec93a88d02e07124451ba617c9", kill_on_drop: false }`
[INFO] [stdout] 86fc3f9750138d521ec209619bef1ae04acb07ec93a88d02e07124451ba617c9