[INFO] fetching crate rustfoundry 4.2.0...
[INFO] documenting rustfoundry-4.2.0 against beta-2025-09-21 for beta-rustdoc-1.91-2
[INFO] extracting crate rustfoundry 4.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate rustfoundry 4.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rustfoundry 4.2.0
[INFO] tweaked toml for crates.io crate rustfoundry 4.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustfoundry 4.2.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 325 packages to latest compatible versions
[INFO] [stderr]       Adding bindgen v0.68.1 (available: v0.72.1)
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[INFO] [stderr]       Adding prometheus v0.13.4 (available: v0.14.0)
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[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
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[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.16)
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af100459cbe456f8b500ddf64931faa294ba091ba0059ad3638cc9579168b804
[INFO] running `Command { std: "docker" "start" "-a" "af100459cbe456f8b500ddf64931faa294ba091ba0059ad3638cc9579168b804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af100459cbe456f8b500ddf64931faa294ba091ba0059ad3638cc9579168b804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af100459cbe456f8b500ddf64931faa294ba091ba0059ad3638cc9579168b804", kill_on_drop: false }`
[INFO] [stdout] af100459cbe456f8b500ddf64931faa294ba091ba0059ad3638cc9579168b804
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 843012e5e1ceb9bf12ddc17a57cee3444b899007d1c122243aa57bd34b1b0ada
[INFO] running `Command { std: "docker" "start" "-a" "843012e5e1ceb9bf12ddc17a57cee3444b899007d1c122243aa57bd34b1b0ada", kill_on_drop: false }`
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[INFO] [stderr]  Documenting rustfoundry v4.2.0 (/opt/rustwide/workdir)
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[INFO] [stderr]    Generated /opt/rustwide/target/doc/rustfoundry/index.html
[INFO] running `Command { std: "docker" "inspect" "843012e5e1ceb9bf12ddc17a57cee3444b899007d1c122243aa57bd34b1b0ada", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "843012e5e1ceb9bf12ddc17a57cee3444b899007d1c122243aa57bd34b1b0ada", kill_on_drop: false }`
[INFO] [stdout] 843012e5e1ceb9bf12ddc17a57cee3444b899007d1c122243aa57bd34b1b0ada
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "rustdoc" "--lib" "-Zrustdoc-map" "--all-features" "--config" "build.rustflags=[\"--cfg\", \"tokio_unstable\", \"--cfg\", \"rustfoundry_unstable\"]" "-Zhost-config" "-Ztarget-applies-to-host" "--config" "host.rustflags=[\"--cfg\", \"tokio_unstable\", \"--cfg\", \"rustfoundry_unstable\"]" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"--cfg\", \"docsrs\", \"--cfg\", \"tokio_unstable\", \"--cfg\", \"rustfoundry_unstable\", \"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39bf459651bcdce9ef6428d1b332a4fd0cd730534b4e07d3d36d699137f0c3e7
[INFO] running `Command { std: "docker" "start" "-a" "39bf459651bcdce9ef6428d1b332a4fd0cd730534b4e07d3d36d699137f0c3e7", kill_on_drop: false }`
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[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling procfs v0.16.0
[INFO] [stderr]     Checking sync_wrapper v0.1.2
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking anstream v0.6.20
[INFO] [stderr]     Checking procfs-core v0.16.0
[INFO] [stderr]     Checking time v0.3.44
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking ordered-float v4.6.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking raw-cpuid v11.6.0
[INFO] [stderr]     Checking thread_local v1.1.9
[INFO] [stderr]     Checking base64 v0.21.7
[INFO] [stderr]     Checking linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling slog-async v2.8.0
[INFO] [stderr]     Checking hashbrown v0.14.5
[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/beta-2025-09-21-x86_64-unknown-linux-gnu/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"' --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=693d3961762cb6a6 -C extra-filename=-295de195d3ce6d3f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-285feca4b7b7bb3d.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-b4272d2c2123277a.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-3afa9ad78d73580b.rmeta --cap-lints allow --cfg tokio_unstable --cfg rustfoundry_unstable --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "39bf459651bcdce9ef6428d1b332a4fd0cd730534b4e07d3d36d699137f0c3e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39bf459651bcdce9ef6428d1b332a4fd0cd730534b4e07d3d36d699137f0c3e7", kill_on_drop: false }`
[INFO] [stdout] 39bf459651bcdce9ef6428d1b332a4fd0cd730534b4e07d3d36d699137f0c3e7