[INFO] cloning repository https://github.com/PistonDevelopers/hematite
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PistonDevelopers/hematite" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPistonDevelopers%2Fhematite", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPistonDevelopers%2Fhematite'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5e387561d7412b28f7b35977d35fa74b3cb1a677
[INFO] testing PistonDevelopers/hematite against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPistonDevelopers%2Fhematite" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PistonDevelopers/hematite 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 git repo https://github.com/PistonDevelopers/hematite
[INFO] finished tweaking git repo https://github.com/PistonDevelopers/hematite
[INFO] tweaked toml for git repo https://github.com/PistonDevelopers/hematite written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/PistonDevelopers/hematite already has a lockfile, it will not be regenerated
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded pistoncore-event_loop v0.42.0
[INFO] [stderr]   Downloaded piston v0.42.0
[INFO] [stderr]   Downloaded piston3d-gfx_voxel v0.27.0
[INFO] [stderr]   Downloaded memmap v0.5.2
[INFO] [stderr]   Downloaded camera_controllers v0.27.0
[INFO] [stderr]   Downloaded quaternion v0.3.1
[INFO] [stderr]   Downloaded array v0.0.1
[INFO] [stderr]   Downloaded docopt v0.7.0
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.54.0
[INFO] [stderr]   Downloaded pistoncore-window v0.37.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] 3d5e57e06956c8cbde59de42ce4123aabf9fc415014f93ba2280c53ba11f60dd
[INFO] running `Command { std: "docker" "start" "-a" "3d5e57e06956c8cbde59de42ce4123aabf9fc415014f93ba2280c53ba11f60dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d5e57e06956c8cbde59de42ce4123aabf9fc415014f93ba2280c53ba11f60dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d5e57e06956c8cbde59de42ce4123aabf9fc415014f93ba2280c53ba11f60dd", kill_on_drop: false }`
[INFO] [stdout] 3d5e57e06956c8cbde59de42ce4123aabf9fc415014f93ba2280c53ba11f60dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] ea2c3c7c680e238d1e799e711d5313c381e02cf5cda96f42f178fea5d7c263d0
[INFO] running `Command { std: "docker" "start" "-a" "ea2c3c7c680e238d1e799e711d5313c381e02cf5cda96f42f178fea5d7c263d0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling piston-float v0.3.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling shader_version v0.3.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling piston-texture v0.6.0
[INFO] [stderr]    Compiling piston-float v1.0.0
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling array v0.0.1
[INFO] [stderr]    Compiling fps_counter v2.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling stb_truetype v0.3.1
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling draw_state v0.8.0
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling dlib v0.4.2
[INFO] [stderr]    Compiling vecmath v1.0.0
[INFO] [stderr]    Compiling piston-viewport v0.5.0
[INFO] [stderr]    Compiling vecmath v0.3.1
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling gif v0.10.3
[INFO] [stderr]    Compiling wayland-sys v0.21.13
[INFO] [stderr]    Compiling quaternion v0.3.1
[INFO] [stderr]    Compiling piston3d-cam v0.3.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling memmap v0.5.2
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling ordered-float v1.1.1
[INFO] [stderr]    Compiling line_drawing v0.7.0
[INFO] [stderr]    Compiling wayland-client v0.21.13
[INFO] [stderr]    Compiling wayland-protocols v0.21.13
[INFO] [stderr]    Compiling rusttype v0.8.3
[INFO] [stderr]    Compiling glutin v0.19.0
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr]    Compiling rusttype v0.7.9
[INFO] [stderr]    Compiling bzip2 v0.4.3
[INFO] [stderr]    Compiling andrew v0.2.1
[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-0.15.44/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"' --cfg 'feature="visit"' -C metadata=89aae962aa85e299 -C extra-filename=-89aae962aa85e299 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-6bd1fb196dd305d0.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-12400374acc6f248.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-4e178870196d207c.rmeta --cap-lints allow --cap-lints=warn --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path --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" "ea2c3c7c680e238d1e799e711d5313c381e02cf5cda96f42f178fea5d7c263d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea2c3c7c680e238d1e799e711d5313c381e02cf5cda96f42f178fea5d7c263d0", kill_on_drop: false }`
[INFO] [stdout] ea2c3c7c680e238d1e799e711d5313c381e02cf5cda96f42f178fea5d7c263d0