[INFO] fetching crate ringkernel 0.4.2...
[INFO] checking ringkernel-0.4.2 against try#3fada14ee01d755dc8076e611f11bf65b28ffd21 for pr-154971
[INFO] extracting crate ringkernel 0.4.2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate ringkernel 0.4.2
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ringkernel 0.4.2
[INFO] tweaked toml for crates.io crate ringkernel 0.4.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ringkernel 0.4.2 on toolchain 3fada14ee01d755dc8076e611f11bf65b28ffd21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ringkernel 0.4.2 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" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fec990bf8ef62f7be37bf52e0f9807ab23230d60370e00e33ad82a75ab8e6da
[INFO] running `Command { std: "docker" "start" "-a" "2fec990bf8ef62f7be37bf52e0f9807ab23230d60370e00e33ad82a75ab8e6da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fec990bf8ef62f7be37bf52e0f9807ab23230d60370e00e33ad82a75ab8e6da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fec990bf8ef62f7be37bf52e0f9807ab23230d60370e00e33ad82a75ab8e6da", kill_on_drop: false }`
[INFO] [stdout] 2fec990bf8ef62f7be37bf52e0f9807ab23230d60370e00e33ad82a75ab8e6da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+3fada14ee01d755dc8076e611f11bf65b28ffd21" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6aaf18af75bdb27a263a8936ceb1306f48bc679227b362eba5c1764f01876e82
[INFO] running `Command { std: "docker" "start" "-a" "6aaf18af75bdb27a263a8936ceb1306f48bc679227b362eba5c1764f01876e82", kill_on_drop: false }`
[INFO] [stderr]     Checking signal-hook-registry v1.4.7
[INFO] [stderr]    Compiling zerocopy v0.8.30
[INFO] [stderr]     Checking tracing-core v0.1.35
[INFO] [stderr]    Compiling zerocopy-derive v0.8.30
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling zerovec-derive v0.11.2
[INFO] [stderr]     Checking http v1.4.0
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling bytemuck_derive v1.10.2
[INFO] [stderr]    Compiling bytecheck v0.6.12
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling rend v0.4.2
[INFO] [stderr]     Checking simdutf8 v0.1.5
[INFO] [stderr]    Compiling rkyv v0.7.45
[INFO] [stderr]    Compiling pest v2.8.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]     Checking seahash v4.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking tokio v1.48.0
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.1
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking http-body-util v0.1.3
[INFO] [stderr]     Checking bytemuck v1.24.0
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking atomic v0.6.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling pest_meta v2.8.4
[INFO] [stderr]     Checking thiserror v2.0.17
[INFO] [stderr]     Checking rustix v1.1.2
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/3fada14ee01d755dc8076e611f11bf65b28ffd21/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.109/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 --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"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=2a1b967fcb890498 -C extra-filename=-db40fadb7b97b01e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-56eedb38ccd29713.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-2ed8f804af991632.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-a0775ff901404d1b.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" "6aaf18af75bdb27a263a8936ceb1306f48bc679227b362eba5c1764f01876e82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aaf18af75bdb27a263a8936ceb1306f48bc679227b362eba5c1764f01876e82", kill_on_drop: false }`
[INFO] [stdout] 6aaf18af75bdb27a263a8936ceb1306f48bc679227b362eba5c1764f01876e82