[INFO] fetching crate essence-engine 0.2.0...
[INFO] testing essence-engine-0.2.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate essence-engine 0.2.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate essence-engine 0.2.0
[INFO] finished tweaking crates.io crate essence-engine 0.2.0
[INFO] tweaked toml for crates.io crate essence-engine 0.2.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate essence-engine 0.2.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate essence-engine 0.2.0 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded compression-core v0.4.29
[INFO] [stderr]   Downloaded tokio-test v0.4.4
[INFO] [stderr]   Downloaded compression-codecs v0.4.31
[INFO] [stderr]   Downloaded async-compression v0.4.32
[INFO] [stderr]   Downloaded tokio-retry v0.3.0
[INFO] [stderr]   Downloaded serial_test v3.2.0
[INFO] [stderr]   Downloaded serial_test_derive v3.2.0
[INFO] [stderr]   Downloaded readability v0.3.0
[INFO] [stderr]   Downloaded servo_arc v0.4.1
[INFO] [stderr]   Downloaded rmcp-macros v0.15.0
[INFO] [stderr]   Downloaded scraper v0.22.0
[INFO] [stderr]   Downloaded find-msvc-tools v0.1.3
[INFO] [stderr]   Downloaded axum-core v0.5.5
[INFO] [stderr]   Downloaded mockito v1.7.0
[INFO] [stderr]   Downloaded rustls-webpki v0.103.7
[INFO] [stderr]   Downloaded cc v1.2.40
[INFO] [stderr]   Downloaded axum v0.8.6
[INFO] [stderr]   Downloaded psl v2.1.194
[INFO] [stderr]   Downloaded rmcp v0.15.0
[INFO] [stderr]   Downloaded webpki-roots v1.0.3
[INFO] [stderr]   Downloaded markup5ever_rcdom v0.3.0
[INFO] [stderr]   Downloaded moka v0.12.11
[INFO] [stderr]   Downloaded xml5ever v0.18.1
[INFO] [stderr]   Downloaded image v0.25.8
[INFO] [stderr]   Downloaded html2md v0.2.15
[INFO] [stderr]   Downloaded moxcms v0.7.5
[INFO] [stderr]   Downloaded pxfm v0.1.24
[INFO] [stderr]   Downloaded hickory-resolver v0.24.4
[INFO] [stderr]   Downloaded resolv-conf v0.7.5
[INFO] [stderr]   Downloaded hickory-proto v0.24.4
[INFO] [stderr]   Downloaded governor v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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] e13803a5f7e5d6a90c2245ae276374c0ed35ef9db0680d0b75c15dcaee0ad94d
[INFO] running `Command { std: "docker" "start" "e13803a5f7e5d6a90c2245ae276374c0ed35ef9db0680d0b75c15dcaee0ad94d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e13803a5f7e5d6a90c2245ae276374c0ed35ef9db0680d0b75c15dcaee0ad94d", 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" "e13803a5f7e5d6a90c2245ae276374c0ed35ef9db0680d0b75c15dcaee0ad94d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e13803a5f7e5d6a90c2245ae276374c0ed35ef9db0680d0b75c15dcaee0ad94d", 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" "e13803a5f7e5d6a90c2245ae276374c0ed35ef9db0680d0b75c15dcaee0ad94d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling value-bag v1.11.1
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling litemap v0.8.0
[INFO] [stderr]    Compiling find-msvc-tools v0.1.3
[INFO] [stderr]    Compiling writeable v0.6.1
[INFO] [stderr]    Compiling futf v0.1.5
[INFO] [stderr]    Compiling icu_properties_data v2.0.1
[INFO] [stderr]    Compiling cc v1.2.40
[INFO] [stderr]    Compiling icu_normalizer_data v2.0.0
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling tendril v0.4.3
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling event-listener v5.4.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling futures-lite v2.6.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling rustls-pki-types v1.12.0
[INFO] [stderr]    Compiling sync_wrapper v1.0.2
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling flate2 v1.1.2
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling brotli-decompressor v5.0.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.4
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling phf_codegen v0.10.0
[INFO] [stderr]    Compiling markup5ever v0.12.1
[INFO] [stderr]    Compiling markup5ever v0.11.0
[INFO] [stderr]    Compiling async-channel v2.5.0
[INFO] [stderr]    Compiling async-lock v3.4.1
[INFO] [stderr]    Compiling time-core v0.1.6
[INFO] [stderr]    Compiling rustls v0.23.32
[INFO] [stderr]    Compiling deranged v0.5.4
[INFO] [stderr]    Compiling time-macros v0.2.24
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling brotli v8.0.2
[INFO] [stderr]    Compiling phf v0.10.1
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling piper v0.2.4
[INFO] [stderr]    Compiling cookie v0.18.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling built v0.7.7
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling data-encoding v2.9.0
[INFO] [stderr]    Compiling compression-core v0.4.29
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling rav1e v0.7.1
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling blocking v1.6.2
[INFO] [stderr]    Compiling digest v0.10.7
[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/1.99.0-beta.8-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 -C debug-assertions=off --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="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=8a89e67b63b37787 -C extra-filename=-70df89153d4774de --out-dir /opt/rustwide/target/release/deps -C strip=debuginfo -L dependency=/opt/rustwide/target/release/deps --extern proc_macro2=/opt/rustwide/target/release/deps/libproc_macro2-84396e5dfd8548a6.rmeta --extern quote=/opt/rustwide/target/release/deps/libquote-07d5cb772adbc0ab.rmeta --extern unicode_ident=/opt/rustwide/target/release/deps/libunicode_ident-89ce7184ff3ede1a.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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/1.99.0-beta.8-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.106/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 -C debug-assertions=off --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=ab3e591e9072954c -C extra-filename=-b9cde30f07380e10 --out-dir /opt/rustwide/target/release/deps -C strip=debuginfo -L dependency=/opt/rustwide/target/release/deps --extern proc_macro2=/opt/rustwide/target/release/deps/libproc_macro2-84396e5dfd8548a6.rmeta --extern quote=/opt/rustwide/target/release/deps/libquote-07d5cb772adbc0ab.rmeta --extern unicode_ident=/opt/rustwide/target/release/deps/libunicode_ident-89ce7184ff3ede1a.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "e13803a5f7e5d6a90c2245ae276374c0ed35ef9db0680d0b75c15dcaee0ad94d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e13803a5f7e5d6a90c2245ae276374c0ed35ef9db0680d0b75c15dcaee0ad94d", kill_on_drop: false }`
[INFO] [stdout] e13803a5f7e5d6a90c2245ae276374c0ed35ef9db0680d0b75c15dcaee0ad94d
