[INFO] fetching crate koan-core 0.19.0...
[INFO] checking koan-core-0.19.0 against try#88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c for pr-154887
[INFO] extracting crate koan-core 0.19.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate koan-core 0.19.0
[INFO] finished tweaking crates.io crate koan-core 0.19.0
[INFO] tweaked toml for crates.io crate koan-core 0.19.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate koan-core 0.19.0 on toolchain 88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate koan-core 0.19.0 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" "+88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c" "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" "+88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b220ac185a096cfd6f55683c3bff3cdb36d045d94f89983a3f1da9a5ea4802e9
[INFO] running `Command { std: "docker" "start" "-a" "b220ac185a096cfd6f55683c3bff3cdb36d045d94f89983a3f1da9a5ea4802e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b220ac185a096cfd6f55683c3bff3cdb36d045d94f89983a3f1da9a5ea4802e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b220ac185a096cfd6f55683c3bff3cdb36d045d94f89983a3f1da9a5ea4802e9", kill_on_drop: false }`
[INFO] [stdout] b220ac185a096cfd6f55683c3bff3cdb36d045d94f89983a3f1da9a5ea4802e9
[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" "+88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04028d41134dee0cc06223c35b91144ab2f185961246dd22f44bc8fa244b9f73
[INFO] running `Command { std: "docker" "start" "-a" "04028d41134dee0cc06223c35b91144ab2f185961246dd22f44bc8fa244b9f73", kill_on_drop: false }`
[INFO] [stderr]    Compiling aws-lc-rs v1.16.1
[INFO] [stderr]     Checking num-traits v0.2.19
[INFO] [stderr]    Compiling bitflags v2.11.0
[INFO] [stderr]     Checking futures-sink v0.3.32
[INFO] [stderr]     Checking zeroize v1.8.2
[INFO] [stderr]     Checking tokio v1.50.0
[INFO] [stderr]     Checking getrandom v0.2.17
[INFO] [stderr]    Compiling aws-lc-sys v0.38.0
[INFO] [stderr]    Compiling bindgen v0.64.0
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking indexmap v2.13.0
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling libdbus-sys v0.2.7
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking futures-channel v0.3.32
[INFO] [stderr]     Checking winnow v0.7.15
[INFO] [stderr]    Compiling yansi v1.0.1
[INFO] [stderr]     Checking rustls-pki-types v1.14.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.36.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]     Checking rayon v1.11.0
[INFO] [stderr]     Checking serde_spanned v0.6.9
[INFO] [stderr]     Checking toml_datetime v0.6.11
[INFO] [stderr]    Compiling uncased v0.9.10
[INFO] [stderr]     Checking extended v0.1.0
[INFO] [stderr]     Checking toml_write v0.1.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking dasp_sample v0.11.0
[INFO] [stderr]     Checking rustls-native-certs v0.8.3
[INFO] [stderr]     Checking dbus v0.9.10
[INFO] [stderr]     Checking getrandom v0.4.2
[INFO] [stderr]    Compiling pear_codegen v0.2.9
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]    Compiling figment v0.10.19
[INFO] [stderr]     Checking inlinable_string v0.1.15
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking transpose v0.2.3
[INFO] [stderr]     Checking primal-check v0.3.4
[INFO] [stderr]     Checking noisy_float v0.2.1
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]    Compiling ebur128 v0.1.10
[INFO] [stderr]    Compiling bliss-audio v0.11.2
[INFO] [stderr]     Checking winnow v1.0.0
[INFO] [stderr]    Compiling cpal v0.15.3
[INFO] [stderr]    Compiling strum_macros v0.27.2
[INFO] [stderr]     Checking rustfft v6.4.1
[INFO] [stderr]     Checking toml_edit v0.22.27
[INFO] [stderr]     Checking toml_parser v1.0.10+spec-1.1.0
[INFO] [stderr]     Checking dirs-sys v0.5.0
[INFO] [stderr]     Checking pear v0.2.9
[INFO] [stderr]     Checking extended-isolation-forest v0.2.3
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking alsa v0.9.1
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]     Checking ogg_pager v0.7.1
[INFO] [stderr]     Checking dasp_frame v0.11.0
[INFO] [stderr]     Checking serde_json v1.0.149
[INFO] [stderr]     Checking dbus-secret-service v4.1.0
[INFO] [stderr]    Compiling lofty_attr v0.12.0
[INFO] [stderr]     Checking rcue v0.1.3
[INFO] [stderr]     Checking toml_writer v1.0.7+spec-1.1.0
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]     Checking ndarray v0.16.1
[INFO] [stderr]    Compiling koan-core v0.19.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking strum v0.27.2
[INFO] [stderr]     Checking chrono v0.4.44
[INFO] [stderr]     Checking toml v0.9.12+spec-1.1.0
[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/88b8a1c6e3a6f6f8a2ed6b6a9a74e0ef1862f72c/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="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit-mut"' --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=b098ac78cbaf7634 -C extra-filename=-a78447d02e60323a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d4cb564e807a9cd7.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-aa2c5b8519914b46.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-8c98a1a0e58216a9.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" "04028d41134dee0cc06223c35b91144ab2f185961246dd22f44bc8fa244b9f73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04028d41134dee0cc06223c35b91144ab2f185961246dd22f44bc8fa244b9f73", kill_on_drop: false }`
[INFO] [stdout] 04028d41134dee0cc06223c35b91144ab2f185961246dd22f44bc8fa244b9f73