[INFO] cloning repository https://github.com/KimuraYu45z/gaussian-process-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KimuraYu45z/gaussian-process-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKimuraYu45z%2Fgaussian-process-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKimuraYu45z%2Fgaussian-process-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 873144e4ee3e8b61d702dddf8b7694a5ab4d3172
[INFO] testing KimuraYu45z/gaussian-process-rs against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKimuraYu45z%2Fgaussian-process-rs" "/workspace/builds/worker-100/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-100/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KimuraYu45z/gaussian-process-rs on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KimuraYu45z/gaussian-process-rs
[INFO] finished tweaking git repo https://github.com/KimuraYu45z/gaussian-process-rs
[INFO] tweaked toml for git repo https://github.com/KimuraYu45z/gaussian-process-rs written to /workspace/builds/worker-100/source/Cargo.toml
[INFO] crate git repo https://github.com/KimuraYu45z/gaussian-process-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d79c50d5ce747f87068ada4e0b4803ae08edf67b332f6334c4cd51ff460cf784
[INFO] running `Command { std: "docker" "start" "-a" "d79c50d5ce747f87068ada4e0b4803ae08edf67b332f6334c4cd51ff460cf784", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d79c50d5ce747f87068ada4e0b4803ae08edf67b332f6334c4cd51ff460cf784", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d79c50d5ce747f87068ada4e0b4803ae08edf67b332f6334c4cd51ff460cf784", kill_on_drop: false }`
[INFO] [stdout] d79c50d5ce747f87068ada4e0b4803ae08edf67b332f6334c4cd51ff460cf784
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b38920fdfce8b7c2537372a24b86b0ba0ad91287a4e3cccb7cac6e40f5302df5
[INFO] running `Command { std: "docker" "start" "-a" "b38920fdfce8b7c2537372a24b86b0ba0ad91287a4e3cccb7cac6e40f5302df5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling gimli v0.24.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling zstd-safe v2.0.6+zstd.1.4.7
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling curl v0.4.38
[INFO] [stderr]    Compiling rustc-demangle v0.1.19
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling openssl-probe v0.1.4
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling strength_reduce v0.2.3
[INFO] [stderr]    Compiling plotters-backend v0.3.0
[INFO] [stderr]    Compiling bytemuck v1.5.1
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling weezl v0.1.5
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling float-ord v0.2.0
[INFO] [stderr]    Compiling ttf-parser v0.12.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling plotters-svg v0.3.0
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling gif v0.11.2
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling object v0.25.2
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling jobserver v0.1.22
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling blas-sys v0.7.1
[INFO] [stderr]    Compiling lapack-sys v0.12.1
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling tar v0.4.35
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling primal-check v0.3.1
[INFO] [stderr]    Compiling transpose v0.2.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling openssl-sys v0.9.63
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling zstd-sys v1.4.18+zstd.1.4.7
[INFO] [stderr]    Compiling curl-sys v0.4.44+curl-7.77.0
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling freetype-sys v0.13.1
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling lapack v0.17.0
[INFO] [stderr]    Compiling blas v0.21.0
[INFO] [stderr]    Compiling rustfft v5.1.1
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling addr2line v0.15.2
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling rand_distr v0.4.0
[INFO] [stderr]    Compiling pathfinder_simd v0.5.1
[INFO] [stderr]    Compiling freetype v0.7.0
[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-1.0.72/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=d4148108a3d5b811 -C extra-filename=-d4148108a3d5b811 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-e476eeba35620bc2.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-7cec808d916b2240.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-11d097b41f2e60a4.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" "b38920fdfce8b7c2537372a24b86b0ba0ad91287a4e3cccb7cac6e40f5302df5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b38920fdfce8b7c2537372a24b86b0ba0ad91287a4e3cccb7cac6e40f5302df5", kill_on_drop: false }`
[INFO] [stdout] b38920fdfce8b7c2537372a24b86b0ba0ad91287a4e3cccb7cac6e40f5302df5