[INFO] fetching crate syntaxdot 0.4.1...
[INFO] testing syntaxdot-0.4.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate syntaxdot 0.4.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate syntaxdot 0.4.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate syntaxdot 0.4.1
[INFO] finished tweaking crates.io crate syntaxdot 0.4.1
[INFO] tweaked toml for crates.io crate syntaxdot 0.4.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ee900a4cf8336cbdd2f2dbba0bc8ccf8e1c7fc73e27e9bdc63be70cd8ec28b7
[INFO] running `Command { std: "docker" "start" "-a" "7ee900a4cf8336cbdd2f2dbba0bc8ccf8e1c7fc73e27e9bdc63be70cd8ec28b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ee900a4cf8336cbdd2f2dbba0bc8ccf8e1c7fc73e27e9bdc63be70cd8ec28b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ee900a4cf8336cbdd2f2dbba0bc8ccf8e1c7fc73e27e9bdc63be70cd8ec28b7", kill_on_drop: false }`
[INFO] [stdout] 7ee900a4cf8336cbdd2f2dbba0bc8ccf8e1c7fc73e27e9bdc63be70cd8ec28b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a66f30b56102a60860df1ff1772d18c2570c3239886ea96b43d8e8335cd4d352
[INFO] running `Command { std: "docker" "start" "-a" "a66f30b56102a60860df1ff1772d18c2570c3239886ea96b43d8e8335cd4d352", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling curl v0.4.43
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling fst v0.4.7
[INFO] [stderr]    Compiling fixedbitset v0.4.1
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling seqalign v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling libz-sys v1.1.5
[INFO] [stderr]    Compiling curl-sys v0.4.53+curl-7.82.0
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling miniz_oxide v0.5.1
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling sentencepiece-sys v0.7.1
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling caseless v0.2.1
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling matrixmultiply v0.3.2
[INFO] [stderr]    Compiling petgraph v0.6.0
[INFO] [stderr]    Compiling flate2 v1.0.23
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling ordered-float v2.10.0
[INFO] [stderr]    Compiling bzip2 v0.4.3
[INFO] [stderr]    Compiling udgraph v0.7.0
[INFO] [stderr]    Compiling ndarray v0.15.4
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.91/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 debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=91b4f5eaffc883ba -C extra-filename=-91b4f5eaffc883ba --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-adfd7b1b4588a8fe.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-aa6c9ed6a3b65ac7.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-d8167d72773bee47.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: build failed
[INFO] running `Command { std: "docker" "inspect" "a66f30b56102a60860df1ff1772d18c2570c3239886ea96b43d8e8335cd4d352", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a66f30b56102a60860df1ff1772d18c2570c3239886ea96b43d8e8335cd4d352", kill_on_drop: false }`
[INFO] [stdout] a66f30b56102a60860df1ff1772d18c2570c3239886ea96b43d8e8335cd4d352