[INFO] cloning repository https://github.com/DelSkayn/ChessEngine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DelSkayn/ChessEngine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDelSkayn%2FChessEngine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDelSkayn%2FChessEngine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 901c013ae79926a6dc9264a1a8619c1df8aca040
[INFO] testing DelSkayn/ChessEngine against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDelSkayn%2FChessEngine" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DelSkayn/ChessEngine 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] removed /workspace/builds/worker-7/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/DelSkayn/ChessEngine
[INFO] finished tweaking git repo https://github.com/DelSkayn/ChessEngine
[INFO] tweaked toml for git repo https://github.com/DelSkayn/ChessEngine written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/DelSkayn/ChessEngine 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]  Downloading crates ...
[INFO] [stderr]   Downloaded glam v0.20.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] da2be23a11c659f8a0d2be34152c8505946e8494b0b2b37641bb4889764572b4
[INFO] running `Command { std: "docker" "start" "-a" "da2be23a11c659f8a0d2be34152c8505946e8494b0b2b37641bb4889764572b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da2be23a11c659f8a0d2be34152c8505946e8494b0b2b37641bb4889764572b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da2be23a11c659f8a0d2be34152c8505946e8494b0b2b37641bb4889764572b4", kill_on_drop: false }`
[INFO] [stdout] da2be23a11c659f8a0d2be34152c8505946e8494b0b2b37641bb4889764572b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bf013891a33f5f425e0f83902bf14a24028820bbabf109bc6d46d3587784ec8c
[INFO] running `Command { std: "docker" "start" "-a" "bf013891a33f5f425e0f83902bf14a24028820bbabf109bc6d46d3587784ec8c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling serde_json v1.0.74
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling ttf-parser v0.12.3
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling glam v0.20.0
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling gfx_core v0.9.2
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling wayland-scanner v0.28.6
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling lyon_geom v0.17.5
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling crossbeam v0.8.1
[INFO] [stderr]    Compiling lyon_path v0.17.7
[INFO] [stderr]    Compiling gfx v0.18.2
[INFO] [stderr]    Compiling owned_ttf_parser v0.12.1
[INFO] [stderr]    Compiling wayland-client v0.28.6
[INFO] [stderr]    Compiling wayland-protocols v0.28.6
[INFO] [stderr]    Compiling ab_glyph v0.2.11
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling gfx_gl v0.6.1
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling lyon_algorithms v0.17.6
[INFO] [stderr]    Compiling lyon_tessellation v0.17.10
[INFO] [stderr]    Compiling xcursor v0.3.4
[INFO] [stderr]    Compiling glyph_brush_layout v0.2.3
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling x11-dl v2.19.1
[INFO] [stderr]    Compiling memmap2 v0.1.0
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling slice-deque v0.3.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling socket2 v0.4.2
[INFO] [stderr]    Compiling lyon v0.17.10
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling dirs v3.0.2
[INFO] [stderr]    Compiling directories v3.0.2
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling mio-misc v1.2.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling xdg v2.4.0
[INFO] [stderr]    Compiling andrew v0.3.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling chess_core v0.1.0 (/opt/rustwide/workdir/chess_core)
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling twox-hash v1.6.1
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[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-1.0.81/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=5f1714ea4fb567cf -C extra-filename=-5f1714ea4fb567cf --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-fcac75a3ab2b706e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-9200e902a93b3fd4.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" "bf013891a33f5f425e0f83902bf14a24028820bbabf109bc6d46d3587784ec8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf013891a33f5f425e0f83902bf14a24028820bbabf109bc6d46d3587784ec8c", kill_on_drop: false }`
[INFO] [stdout] bf013891a33f5f425e0f83902bf14a24028820bbabf109bc6d46d3587784ec8c