[INFO] cloning repository https://github.com/guppy-rs/guppy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guppy-rs/guppy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguppy-rs%2Fguppy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguppy-rs%2Fguppy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec2f821e68733af4d533b6238e600d7509bb29cb
[INFO] checking guppy-rs/guppy against master#db0e836148accac8a22532e3596ac612b63c2d8e for pr-139272
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguppy-rs%2Fguppy" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/guppy-rs/guppy on toolchain db0e836148accac8a22532e3596ac612b63c2d8e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db0e836148accac8a22532e3596ac612b63c2d8e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/guppy-rs/guppy
[INFO] finished tweaking git repo https://github.com/guppy-rs/guppy
[INFO] tweaked toml for git repo https://github.com/guppy-rs/guppy written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/guppy-rs/guppy 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" "+db0e836148accac8a22532e3596ac612b63c2d8e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded snapbox-macros v0.3.10
[INFO] [stderr]   Downloaded miette-derive v7.6.0
[INFO] [stderr]   Downloaded atomicwrites v0.4.4
[INFO] [stderr]   Downloaded wait-timeout v0.2.1
[INFO] [stderr]   Downloaded miette v7.6.0
[INFO] [stderr]   Downloaded gix-negotiate v0.18.0
[INFO] [stderr]   Downloaded rustc-stable-hash v0.1.1
[INFO] [stderr]   Downloaded cargo-util-schemas v0.8.0
[INFO] [stderr]   Downloaded clap_complete v4.5.45
[INFO] [stderr]   Downloaded gix-dir v0.12.0
[INFO] [stderr]   Downloaded git2-curl v0.21.0
[INFO] [stderr]   Downloaded gix-credentials v0.27.0
[INFO] [stderr]   Downloaded rustix v1.0.0
[INFO] [stderr]   Downloaded prodash v29.0.0
[INFO] [stderr]   Downloaded libtest-mimic v0.8.1
[INFO] [stderr]   Downloaded datatest-stable v0.3.2
[INFO] [stderr]   Downloaded serde_ignored v0.1.10
[INFO] [stderr]   Downloaded pasetors v0.7.2
[INFO] [stderr]   Downloaded snapbox v0.6.21
[INFO] [stderr]   Downloaded git2 v0.20.1
[INFO] [stderr]   Downloaded orion v0.17.8
[INFO] [stderr]   Downloaded cfg-expr v0.18.0
[INFO] [stderr]   Downloaded escape8259 v0.5.3
[INFO] [stderr]   Downloaded anstyle-lossy v1.1.3
[INFO] [stderr]   Downloaded anstyle-svg v0.1.7
[INFO] [stderr]   Downloaded diffy v0.4.2
[INFO] [stderr]   Downloaded cargo v0.87.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+db0e836148accac8a22532e3596ac612b63c2d8e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] faf0e544afb7747e56d46aa66f7f3a78e4a7bfbda14f2c968ce19922ddaafc55
[INFO] running `Command { std: "docker" "start" "-a" "faf0e544afb7747e56d46aa66f7f3a78e4a7bfbda14f2c968ce19922ddaafc55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "faf0e544afb7747e56d46aa66f7f3a78e4a7bfbda14f2c968ce19922ddaafc55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faf0e544afb7747e56d46aa66f7f3a78e4a7bfbda14f2c968ce19922ddaafc55", kill_on_drop: false }`
[INFO] [stdout] faf0e544afb7747e56d46aa66f7f3a78e4a7bfbda14f2c968ce19922ddaafc55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+db0e836148accac8a22532e3596ac612b63c2d8e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e91955ebaa0a938bc69458e83b5beb4cd440a195a81a78702a195d988bc48e8b
[INFO] running `Command { std: "docker" "start" "-a" "e91955ebaa0a938bc69458e83b5beb4cd440a195a81a78702a195d988bc48e8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.17
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking bitflags v2.8.0
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking smallvec v1.14.0
[INFO] [stderr]    Compiling thiserror v2.0.11
[INFO] [stderr]     Checking fastrand v2.3.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking itoa v1.0.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]    Compiling pkg-config v0.3.31
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling rustix v1.0.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]     Checking linux-raw-sys v0.9.2
[INFO] [stderr]     Checking anstyle v1.0.10
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking anstyle-parse v0.2.6
[INFO] [stderr]     Checking anstyle-query v1.1.2
[INFO] [stderr]     Checking colorchoice v1.0.3
[INFO] [stderr]     Checking ryu v1.0.19
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking foldhash v0.1.5
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking clap_lex v0.7.4
[INFO] [stderr]     Checking anstream v0.6.18
[INFO] [stderr]     Checking hashbrown v0.15.2
[INFO] [stderr]     Checking equivalent v1.0.2
[INFO] [stderr]     Checking is_ci v1.2.0
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking miniz_oxide v0.7.4
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking rustc-demangle v0.1.24
[INFO] [stderr]     Checking bit-vec v0.8.0
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling owo-colors v4.1.0
[INFO] [stderr]     Checking glob v0.3.2
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking bit-set v0.8.0
[INFO] [stderr]     Checking unicode-linebreak v0.1.5
[INFO] [stderr]     Checking indexmap v2.9.0
[INFO] [stderr]    Compiling include_dir_macros v0.7.4
[INFO] [stderr]     Checking supports-unicode v3.0.0
[INFO] [stderr]     Checking supports-hyperlinks v3.1.0
[INFO] [stderr]     Checking supports-color v3.0.2
[INFO] [stderr]     Checking fixedbitset v0.5.7
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]     Checking textwrap v0.16.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking include_dir v0.7.4
[INFO] [stderr]     Checking wait-timeout v0.2.1
[INFO] [stderr]     Checking supports-color v1.3.1
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]    Compiling cc v1.2.14
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]    Compiling target-lexicon v0.13.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking gix-trace v0.1.12
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling target-spec v3.4.2 (/opt/rustwide/workdir/target-spec)
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking tinyvec v1.8.1
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking petgraph v0.7.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking miniz_oxide v0.8.4
[INFO] [stderr]     Checking prodash v29.0.0
[INFO] [stderr]     Checking itertools v0.14.0
[INFO] [stderr]     Checking cfg-expr v0.18.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.14
[INFO] [stderr]     Checking sha1_smol v1.0.1
[INFO] [stderr]     Checking bytes v1.10.0
[INFO] [stderr]     Checking tempfile v3.18.0
[INFO] [stderr]     Checking nested v0.1.1
[INFO] [stderr]     Checking debug-ignore v1.0.5
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]     Checking home v0.5.11
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking jiff v0.1.29
[INFO] [stderr]     Checking allocator-api2 v0.2.21
[INFO] [stderr]     Checking winnow v0.6.26
[INFO] [stderr]     Checking unicode-normalization v0.1.24
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking terminal_size v0.4.1
[INFO] [stderr]     Checking clap_builder v4.5.30
[INFO] [stderr]     Checking memmap2 v0.9.5
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]     Checking writeable v0.5.5
[INFO] [stderr]     Checking winnow v0.7.7
[INFO] [stderr]     Checking litemap v0.7.4
[INFO] [stderr]     Checking toml_write v0.1.1
[INFO] [stderr]     Checking diffus v0.10.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking const-oid v0.9.6
[INFO] [stderr]     Checking icu_locid_transform_data v1.5.0
[INFO] [stderr]     Checking shell-words v1.1.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking eyre v0.6.12
[INFO] [stderr]     Checking yansi v1.0.1
[INFO] [stderr]    Compiling libz-sys v1.1.21
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling openssl-sys v0.9.106
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking icu_properties_data v1.5.0
[INFO] [stderr]     Checking unicode-width v0.2.0
[INFO] [stderr]     Checking flate2 v1.0.35
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]     Checking pretty_assertions v1.4.1
[INFO] [stderr]     Checking utf16_iter v1.0.5
[INFO] [stderr]     Checking write16 v1.0.0
[INFO] [stderr]     Checking icu_normalizer_data v1.5.0
[INFO] [stderr]     Checking utf8_iter v1.0.4
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.11+1.64.0
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking os_str_bytes v6.6.1
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]    Compiling curl-sys v0.4.80+curl-8.12.1
[INFO] [stderr]     Checking base64ct v1.6.0
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking twox-hash v1.6.3
[INFO] [stderr]     Checking pem-rfc7468 v0.7.0
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.2
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking unicode-bom v2.0.3
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking der v0.7.9
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]     Checking gix-sec v0.10.11
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[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/db0e836148accac8a22532e3596ac612b63c2d8e/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.98/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=f239f78860c0a7c6 -C extra-filename=-57bd09b425a8d700 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-107e47b43b0efb2a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-1b6a221cac47e5d3.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-6759994d78e94663.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" "e91955ebaa0a938bc69458e83b5beb4cd440a195a81a78702a195d988bc48e8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e91955ebaa0a938bc69458e83b5beb4cd440a195a81a78702a195d988bc48e8b", kill_on_drop: false }`
[INFO] [stdout] e91955ebaa0a938bc69458e83b5beb4cd440a195a81a78702a195d988bc48e8b