[INFO] updating cached repository https://github.com/kempchee/piston-snake
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7530eecc0da59f870d1febdeac50bcf0824c1d7d
[INFO] testing kempchee/piston-snake against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkempchee%2Fpiston-snake" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kempchee/piston-snake on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/kempchee/piston-snake
[INFO] finished tweaking git repo https://github.com/kempchee/piston-snake
[INFO] tweaked toml for git repo https://github.com/kempchee/piston-snake written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/kempchee/piston-snake already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /big/crater/work/builds/worker-0/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] fc68506aa615bc7d9a1724890f1d05fed96541210490651d6c600cbf5dcb8028
[INFO] running `"docker" "start" "-a" "fc68506aa615bc7d9a1724890f1d05fed96541210490651d6c600cbf5dcb8028"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling smallvec v0.6.10
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling arrayvec v0.5.0
[INFO] [stderr]    Compiling piston-float v1.0.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]    Compiling downcast-rs v1.0.4
[INFO] [stderr]    Compiling same-file v1.0.5
[INFO] [stderr]    Compiling piston-graphics_api_version v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.6.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling constant_time_eq v0.1.4
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling arrayref v0.3.5
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling xdg v2.2.0
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling safemem v0.2.0
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling piston-float v0.3.0
[INFO] [stderr]    Compiling md5 v0.3.8
[INFO] [stderr]    Compiling fallible-iterator v0.1.6
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling read_color v1.0.0
[INFO] [stderr]    Compiling approx v0.1.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling interpolation v0.2.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.2
[INFO] [stderr]    Compiling hex v0.2.0
[INFO] [stderr]    Compiling piston-texture v0.8.0
[INFO] [stderr]    Compiling piston-shaders_graphics2d v0.3.1
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling lock_api v0.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.8
[INFO] [stderr]    Compiling piston-viewport v1.0.0
[INFO] [stderr]    Compiling vecmath v1.0.0
[INFO] [stderr]    Compiling walkdir v2.2.9
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling shader_version v0.6.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]    Compiling piston-viewport v0.3.0
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling gif v0.10.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling x11-dl v2.18.4
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling stb_truetype v0.3.0
[INFO] [stderr]    Compiling base64 v0.6.0
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling daggy v0.5.0
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling socket2 v0.3.11
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]    Compiling stb_truetype v0.2.8
[INFO] [stderr]    Compiling png v0.15.0
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling line_drawing v0.7.0
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling stringprep v0.1.2
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.3
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.5
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]    Compiling crypto-mac v0.5.2
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rusttype v0.8.1
[INFO] [stderr]    Compiling ordered-float v0.5.2
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling hmac v0.5.0
[INFO] [stderr]    Compiling wayland-client v0.21.13
[INFO] [stderr]    Compiling wayland-protocols v0.21.13
[INFO] [stderr]    Compiling wayland-sys v0.21.13
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling rusttype v0.5.2
[INFO] [stderr]    Compiling rusttype v0.7.9
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr] error: could not compile `syn`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.13.11/src/lib.rs --color never --crate-type lib --emit=dep-info,metadata,link -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"' -C metadata=f9f6902a31086e75 -C extra-filename=-f9f6902a31086e75 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-3f74ce2b3392723d.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-afa2bc16ec4a4884.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-a5c98a5dc11241a7.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "fc68506aa615bc7d9a1724890f1d05fed96541210490651d6c600cbf5dcb8028"`
[INFO] running `"docker" "rm" "-f" "fc68506aa615bc7d9a1724890f1d05fed96541210490651d6c600cbf5dcb8028"`
[INFO] [stdout] fc68506aa615bc7d9a1724890f1d05fed96541210490651d6c600cbf5dcb8028