[INFO] fetching crate maestro-symphony 0.2.1...
[INFO] testing maestro-symphony-0.2.1 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate maestro-symphony 0.2.1 into /workspace/builds/worker-5-tc1/source
[INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate maestro-symphony 0.2.1
[INFO] finished tweaking crates.io crate maestro-symphony 0.2.1
[INFO] tweaked toml for crates.io crate maestro-symphony 0.2.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate maestro-symphony 0.2.1 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 maestro-symphony 0.2.1 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 ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 13b86d004fde8299d8f5fb650edacbca624013713f2d578431af171c3f6ae900
[INFO] running `Command { std: "docker" "start" "13b86d004fde8299d8f5fb650edacbca624013713f2d578431af171c3f6ae900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13b86d004fde8299d8f5fb650edacbca624013713f2d578431af171c3f6ae900", 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" "13b86d004fde8299d8f5fb650edacbca624013713f2d578431af171c3f6ae900" "/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" "13b86d004fde8299d8f5fb650edacbca624013713f2d578431af171c3f6ae900", 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" "13b86d004fde8299d8f5fb650edacbca624013713f2d578431af171c3f6ae900" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling zerocopy v0.8.40
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling libc v0.2.183
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling signal-hook-registry v1.4.5
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling gcd v2.3.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling memuse v0.2.2
[INFO] [stderr]    Compiling blake2b_simd v1.0.4
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling blake2 v0.10.6
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling jobserver v0.1.33
[INFO] [stderr]    Compiling cc v1.2.21
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling transpose v0.2.3
[INFO] [stderr]    Compiling sha3 v0.10.8
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling nu-ansi-term v0.50.1
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling minicbor v0.25.1
[INFO] [stderr]    Compiling addchain v0.2.1
[INFO] [stderr]    Compiling cryptoxide v0.4.4
[INFO] [stderr]    Compiling bitcoin-io v0.1.3
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling bitcoin-internals v0.3.0
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling hex-conservative v0.2.2
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling glob v0.3.2
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling http v1.3.1
[INFO] [stderr]    Compiling blake3 v1.8.3
[INFO] [stderr]    Compiling secp256k1-sys v0.10.1
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling ff v0.12.1
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling group v0.12.1
[INFO] [stderr]    Compiling pairing v0.22.0
[INFO] [stderr]    Compiling libm v0.2.16
[INFO] [stderr]    Compiling bls12_381 v0.7.1
[INFO] [stderr]    Compiling p3-maybe-rayon v0.3.2-succinct
[INFO] [stderr]    Compiling hex_lit v0.1.1
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling hashbrown v0.15.3
[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"' --cfg 'feature="visit"' --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=6a34b096ffff3e7a -C extra-filename=-4100fcb8459f3ceb --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_macro2-1a0de9b0e4038a0e.rmeta --extern quote=/opt/rustwide/target/release/deps/libquote-e806ef847d8feb5b.rmeta --extern unicode_ident=/opt/rustwide/target/release/deps/libunicode_ident-4db6325f2cc66793.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-2.0.117/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="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=31c180d4b9e76358 -C extra-filename=-b53dcf197ff75a4f --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_macro2-1a0de9b0e4038a0e.rmeta --extern quote=/opt/rustwide/target/release/deps/libquote-e806ef847d8feb5b.rmeta --extern unicode_ident=/opt/rustwide/target/release/deps/libunicode_ident-4db6325f2cc66793.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "13b86d004fde8299d8f5fb650edacbca624013713f2d578431af171c3f6ae900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13b86d004fde8299d8f5fb650edacbca624013713f2d578431af171c3f6ae900", kill_on_drop: false }`
[INFO] [stdout] 13b86d004fde8299d8f5fb650edacbca624013713f2d578431af171c3f6ae900
