[INFO] fetching crate taffy 0.10.0...
[INFO] testing taffy-0.10.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate taffy 0.10.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate taffy 0.10.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate taffy 0.10.0
[INFO] tweaked toml for crates.io crate taffy 0.10.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate taffy 0.10.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate taffy 0.10.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 558a55be5e0d6a58ea590d0584f566739142338681f681571bcd8a1ceb47e31d
[INFO] running `Command { std: "docker" "start" "-a" "558a55be5e0d6a58ea590d0584f566739142338681f681571bcd8a1ceb47e31d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "558a55be5e0d6a58ea590d0584f566739142338681f681571bcd8a1ceb47e31d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "558a55be5e0d6a58ea590d0584f566739142338681f681571bcd8a1ceb47e31d", kill_on_drop: false }`
[INFO] [stdout] 558a55be5e0d6a58ea590d0584f566739142338681f681571bcd8a1ceb47e31d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cbe20939099b0b593f28b40402f03038bb0d9ee81c7fc0a792b0699a0fa59d4
[INFO] running `Command { std: "docker" "start" "-a" "7cbe20939099b0b593f28b40402f03038bb0d9ee81c7fc0a792b0699a0fa59d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling dtoa v1.0.11
[INFO] [stderr]    Compiling grid v1.0.0
[INFO] [stderr]    Compiling slotmap v1.1.1
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling dtoa-short v0.3.5
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling cssparser-macros v0.7.0
[INFO] [stderr]    Compiling cssparser v0.37.0
[INFO] [stderr]    Compiling taffy v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.79s
[INFO] running `Command { std: "docker" "inspect" "7cbe20939099b0b593f28b40402f03038bb0d9ee81c7fc0a792b0699a0fa59d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cbe20939099b0b593f28b40402f03038bb0d9ee81c7fc0a792b0699a0fa59d4", kill_on_drop: false }`
[INFO] [stdout] 7cbe20939099b0b593f28b40402f03038bb0d9ee81c7fc0a792b0699a0fa59d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b15aa6d7e26c5370fc52b1a11322600567199a6b02c0fd3bfbf3d830fbe61e6f
[INFO] running `Command { std: "docker" "start" "-a" "b15aa6d7e26c5370fc52b1a11322600567199a6b02c0fd3bfbf3d830fbe61e6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling roxmltree v0.21.1
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling taffy v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `taffy` (example "nested")
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/dec9417b8611e34e787a3e4c37686b5131f9e5c5/bin/rustc --crate-name nested --edition=2021 examples/nested.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc"' --cfg 'feature="block_layout"' --cfg 'feature="calc"' --cfg 'feature="content_size"' --cfg 'feature="default"' --cfg 'feature="detailed_layout_info"' --cfg 'feature="flexbox"' --cfg 'feature="float_layout"' --cfg 'feature="grid"' --cfg 'feature="parse"' --cfg 'feature="parse_faster"' --cfg 'feature="std"' --cfg 'feature="taffy_tree"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc", "block_layout", "calc", "content_size", "debug", "default", "detailed_layout_info", "document-features", "flexbox", "float_layout", "grid", "parse", "parse_faster", "profile", "serde", "std", "strict_provenance", "taffy_tree"))' -C metadata=5530787b4e66fafb -C extra-filename=-dd2d2204f99620ce --out-dir /opt/rustwide/target/debug/examples -L dependency=/opt/rustwide/target/debug/deps --extern arrayvec=/opt/rustwide/target/debug/deps/libarrayvec-1b252ee19ef31e11.rlib --extern cssparser=/opt/rustwide/target/debug/deps/libcssparser-da94b565741e8af3.rlib --extern grid=/opt/rustwide/target/debug/deps/libgrid-c9728db4f5f04c52.rlib --extern roxmltree=/opt/rustwide/target/debug/deps/libroxmltree-5f86b4944c7daeb8.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-9946bd3d21134d7a.rlib --extern slotmap=/opt/rustwide/target/debug/deps/libslotmap-dd906970eac74095.rlib --extern taffy=/opt/rustwide/target/debug/deps/libtaffy-d5f24893db0e242c.rlib --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b15aa6d7e26c5370fc52b1a11322600567199a6b02c0fd3bfbf3d830fbe61e6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b15aa6d7e26c5370fc52b1a11322600567199a6b02c0fd3bfbf3d830fbe61e6f", kill_on_drop: false }`
[INFO] [stdout] b15aa6d7e26c5370fc52b1a11322600567199a6b02c0fd3bfbf3d830fbe61e6f