[INFO] fetching crate xxer 0.5.0-alpha-4...
[INFO] testing xxer-0.5.0-alpha-4 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate xxer 0.5.0-alpha-4 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate xxer 0.5.0-alpha-4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate xxer 0.5.0-alpha-4
[INFO] tweaked toml for crates.io crate xxer 0.5.0-alpha-4 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate xxer 0.5.0-alpha-4 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate xxer 0.5.0-alpha-4 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" "+1.100.0-beta.1" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] a24069c23dd04fd6f5ca5d6f7c531b4e93352ecc395d37a61cd9f92647c67816
[INFO] running `Command { std: "docker" "start" "a24069c23dd04fd6f5ca5d6f7c531b4e93352ecc395d37a61cd9f92647c67816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a24069c23dd04fd6f5ca5d6f7c531b4e93352ecc395d37a61cd9f92647c67816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a24069c23dd04fd6f5ca5d6f7c531b4e93352ecc395d37a61cd9f92647c67816" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a24069c23dd04fd6f5ca5d6f7c531b4e93352ecc395d37a61cd9f92647c67816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a24069c23dd04fd6f5ca5d6f7c531b4e93352ecc395d37a61cd9f92647c67816" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.46
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling fastrand v2.5.0
[INFO] [stderr]    Compiling futures-sink v0.3.32
[INFO] [stderr]    Compiling phf_shared v0.13.1
[INFO] [stderr]    Compiling pkg-config v0.3.33
[INFO] [stderr]    Compiling aws-lc-rs v1.17.1
[INFO] [stderr]    Compiling siphasher v1.0.4
[INFO] [stderr]    Compiling http v1.4.2
[INFO] [stderr]    Compiling rustls-pki-types v1.15.0
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling rustls v0.23.41
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling time-core v0.1.8
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling num-conv v0.2.2
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling anstyle-parse v1.0.0
[INFO] [stderr]    Compiling cookie v0.18.1
[INFO] [stderr]    Compiling deranged v0.5.8
[INFO] [stderr]    Compiling dtoa v1.0.11
[INFO] [stderr]    Compiling colorchoice v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.150
[INFO] [stderr]    Compiling bitflags v2.13.0
[INFO] [stderr]    Compiling time-macros v0.2.27
[INFO] [stderr]    Compiling unicode-width v0.2.2
[INFO] [stderr]    Compiling alloc-no-stdlib v2.0.4
[INFO] [stderr]    Compiling phf_generator v0.13.1
[INFO] [stderr]    Compiling anstyle v1.0.14
[INFO] [stderr]    Compiling dtoa-short v0.3.5
[INFO] [stderr]    Compiling phf_codegen v0.13.1
[INFO] [stderr]    Compiling alloc-stdlib v0.2.4
[INFO] [stderr]    Compiling tendril v0.5.1
[INFO] [stderr]    Compiling sync_wrapper v1.0.2
[INFO] [stderr]    Compiling psl-types v2.0.11
[INFO] [stderr]    Compiling selectors v0.38.0
[INFO] [stderr]    Compiling anstream v1.0.0
[INFO] [stderr]    Compiling portable-atomic v1.13.1
[INFO] [stderr]    Compiling litrs v1.0.0
[INFO] [stderr]    Compiling ipnet v2.12.0
[INFO] [stderr]    Compiling syn v2.0.118
[INFO] [stderr]    Compiling syn v3.0.3
[INFO] [stderr]    Compiling string_cache_codegen v0.6.1
[INFO] [stderr]    Compiling rustls-native-certs v0.8.4
[INFO] [stderr]    Compiling brotli-decompressor v5.0.3
[INFO] [stderr]    Compiling web_atoms v0.2.6
[INFO] [stderr]    Compiling servo_arc v0.4.3
[INFO] [stderr]    Compiling anyhow v1.0.103
[INFO] [stderr]    Compiling document-features v0.2.12
[INFO] [stderr]    Compiling jiff-core v0.1.0
[INFO] [stderr]    Compiling clap_lex v1.1.0
[INFO] [stderr]    Compiling konst_macro_rules v0.2.19
[INFO] [stderr]    Compiling iana-time-zone v0.1.65
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling crc-catalog v2.5.0
[INFO] [stderr]    Compiling konst v0.2.20
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling crc v3.4.0
[INFO] [stderr]    Compiling chrono v0.4.45
[INFO] [stderr]    Compiling clap_builder v4.6.2
[INFO] [stderr]    Compiling mio v1.2.1
[INFO] [stderr]    Compiling socket2 v0.6.4
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling time v0.3.47
[INFO] [stderr]    Compiling console v0.16.4
[INFO] [stderr]    Compiling jobserver v0.1.35
[INFO] [stderr]    Compiling regex-automata v0.4.16
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling cc v1.2.67
[INFO] [stderr]    Compiling string_cache v0.9.0
[INFO] [stderr]    Compiling brotli v8.0.4
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling jiff v0.2.35
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.34
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[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/1.100.0-beta.1-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-3.0.3/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat,unused-externs-silent --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debug-assertions=off --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"' --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=529de9ab605ab2c7 -C extra-filename=-1ebbb2a85e61ee95 --out-dir /opt/rustwide/target/release/build/syn/1ebbb2a85e61ee95/out -C strip=debuginfo -L dependency=/opt/rustwide/target/release/build/proc-macro2/ef13cdd4e3a95223/out -L dependency=/opt/rustwide/target/release/build/unicode-ident/3d1450b03eaa80c7/out --extern proc_macro2=/opt/rustwide/target/release/build/proc-macro2/ef13cdd4e3a95223/out/libproc_macro2-ef13cdd4e3a95223.rmeta --extern quote=/opt/rustwide/target/release/build/quote/2327b47968d4deeb/out/libquote-2327b47968d4deeb.rmeta --extern unicode_ident=/opt/rustwide/target/release/build/unicode-ident/3d1450b03eaa80c7/out/libunicode_ident-3d1450b03eaa80c7.rmeta --cap-lints allow --cap-lints=warn --force-warn=unused_crate_dependencies` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a24069c23dd04fd6f5ca5d6f7c531b4e93352ecc395d37a61cd9f92647c67816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a24069c23dd04fd6f5ca5d6f7c531b4e93352ecc395d37a61cd9f92647c67816", kill_on_drop: false }`
[INFO] [stdout] a24069c23dd04fd6f5ca5d6f7c531b4e93352ecc395d37a61cd9f92647c67816
