[INFO] fetching crate cargo-proc-debug 0.1.5...
[INFO] documenting cargo-proc-debug-0.1.5 against beta-2025-04-13 for beta-1.87-rustdoc-1
[INFO] extracting crate cargo-proc-debug 0.1.5 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate cargo-proc-debug 0.1.5 on toolchain beta-2025-04-13
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-04-13" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-proc-debug 0.1.5
[INFO] finished tweaking crates.io crate cargo-proc-debug 0.1.5
[INFO] tweaked toml for crates.io crate cargo-proc-debug 0.1.5 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate cargo-proc-debug 0.1.5 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" "+beta-2025-04-13" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-04-13" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c1ee8ce8a4b5d66decb51accdb49f63261e76c0cff14c18c957948be0eba712
[INFO] running `Command { std: "docker" "start" "-a" "1c1ee8ce8a4b5d66decb51accdb49f63261e76c0cff14c18c957948be0eba712", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c1ee8ce8a4b5d66decb51accdb49f63261e76c0cff14c18c957948be0eba712", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c1ee8ce8a4b5d66decb51accdb49f63261e76c0cff14c18c957948be0eba712", kill_on_drop: false }`
[INFO] [stdout] 1c1ee8ce8a4b5d66decb51accdb49f63261e76c0cff14c18c957948be0eba712
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-04-13" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97ab83ae23c9f4ca7eccf05f762a92dd5ff0a07f17b49bb212352ed7a8338d43
[INFO] running `Command { std: "docker" "start" "-a" "97ab83ae23c9f4ca7eccf05f762a92dd5ff0a07f17b49bb212352ed7a8338d43", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]    Compiling thiserror v1.0.64
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]     Checking bytes v1.7.2
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking tinyvec v1.8.0
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking gix-trace v0.1.10
[INFO] [stderr]     Checking fastrand v2.1.1
[INFO] [stderr]     Checking faster-hex v0.9.0
[INFO] [stderr]     Checking miniz_oxide v0.8.0
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking sha1_smol v1.0.1
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]     Checking num_threads v0.1.7
[INFO] [stderr]     Checking winnow v0.6.20
[INFO] [stderr]    Compiling rustix v0.38.37
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling time-macros v0.2.18
[INFO] [stderr]     Checking home v0.5.9
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking base64ct v1.6.0
[INFO] [stderr]     Checking unicode-bom v2.0.3
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking kstring v2.0.2
[INFO] [stderr]    Compiling curl v0.4.47
[INFO] [stderr]     Checking pem-rfc7468 v0.7.0
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking shell-words v1.1.0
[INFO] [stderr]     Checking cpufeatures v0.2.14
[INFO] [stderr]    Compiling anyhow v1.0.90
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]     Checking anstyle v1.0.8
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking anstyle-parse v0.2.5
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking encoding_rs v0.8.34
[INFO] [stderr]     Checking unicode-normalization v0.1.24
[INFO] [stderr]    Compiling zstd-safe v7.2.1
[INFO] [stderr]     Checking clru v0.6.2
[INFO] [stderr]     Checking jiff v0.1.13
[INFO] [stderr]     Checking anstyle-query v1.1.1
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]     Checking colorchoice v1.0.2
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]    Compiling filetime v0.2.25
[INFO] [stderr]    Compiling cc v1.1.22
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking memmap2 v0.9.5
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking gix-sec v0.10.8
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking mio v1.0.2
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking prodash v28.0.0
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]    Compiling tar v0.4.42
[INFO] [stderr]     Checking anstream v0.6.15
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]     Checking ff v0.13.0
[INFO] [stderr]     Checking url v2.5.2
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking ordered-float v2.10.1
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking tokio v1.40.0
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]    Compiling im-rc v15.1.0
[INFO] [stderr]     Checking tempfile v3.13.0
[INFO] [stderr]     Checking terminal_size v0.3.0
[INFO] [stderr]     Checking fiat-crypto v0.2.9
[INFO] [stderr]     Checking crc-catalog v2.4.0
[INFO] [stderr]     Checking arc-swap v1.7.1
[INFO] [stderr]     Checking clap_lex v0.7.2
[INFO] [stderr]     Checking strsim v0.11.1
[INFO] [stderr]     Checking crc v3.2.1
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking sized-chunks v0.6.5
[INFO] [stderr]     Checking ed25519-compact v2.1.1
[INFO] [stderr]     Checking clap_builder v4.5.18
[INFO] [stderr]     Checking shell-escape v0.1.5
[INFO] [stderr]     Checking fallible-iterator v0.3.0
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking ct-codecs v1.1.2
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]     Checking lockfree-object-pool v0.1.6
[INFO] [stderr]    Compiling zip v2.2.0
[INFO] [stderr]    Compiling libz-sys v1.1.20
[INFO] [stderr]    Compiling openssl-sys v0.9.104
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.10+1.61.0
[INFO] [stderr]    Compiling curl-sys v0.4.77+curl-8.10.1
[INFO] [stderr]    Compiling libssh2-sys v0.3.0
[INFO] [stderr]    Compiling libgit2-sys v0.16.2+1.7.2
[INFO] [stderr]    Compiling zstd-sys v2.0.13+zstd.1.5.6
[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-2025-04-13-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.77/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="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="visit"' --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", "test", "visit", "visit-mut"))' -C metadata=7b922d2c8890784c -C extra-filename=-46616011deab87c3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-df49a91f21be33c8.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-18c558df6ad7ec00.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-22b7b0cc8d73ac3c.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "97ab83ae23c9f4ca7eccf05f762a92dd5ff0a07f17b49bb212352ed7a8338d43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97ab83ae23c9f4ca7eccf05f762a92dd5ff0a07f17b49bb212352ed7a8338d43", kill_on_drop: false }`
[INFO] [stdout] 97ab83ae23c9f4ca7eccf05f762a92dd5ff0a07f17b49bb212352ed7a8338d43