[INFO] cloning repository https://github.com/angelbeshirov/dots-n-boxes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/angelbeshirov/dots-n-boxes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fangelbeshirov%2Fdots-n-boxes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fangelbeshirov%2Fdots-n-boxes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cfbb3cfcbd1f23550763f1808e7af35cfbc5dcdb
[INFO] checking angelbeshirov/dots-n-boxes against beta-2020-07-24 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fangelbeshirov%2Fdots-n-boxes" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/angelbeshirov/dots-n-boxes on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/angelbeshirov/dots-n-boxes
[INFO] finished tweaking git repo https://github.com/angelbeshirov/dots-n-boxes
[INFO] tweaked toml for git repo https://github.com/angelbeshirov/dots-n-boxes written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/angelbeshirov/dots-n-boxes already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] 483b9e46cb897f9f1cdfdec0e3fa7be794761947cab7c0afa2ed916be5b02e7f
[INFO] running `Command { std: "docker" "start" "-a" "483b9e46cb897f9f1cdfdec0e3fa7be794761947cab7c0afa2ed916be5b02e7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "483b9e46cb897f9f1cdfdec0e3fa7be794761947cab7c0afa2ed916be5b02e7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "483b9e46cb897f9f1cdfdec0e3fa7be794761947cab7c0afa2ed916be5b02e7f", kill_on_drop: false }`
[INFO] [stdout] 483b9e46cb897f9f1cdfdec0e3fa7be794761947cab7c0afa2ed916be5b02e7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 939cedb54f2dbda6ddf2161037e1c4519b302c023095b0c7d8e1f2d19d1b7e4a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "939cedb54f2dbda6ddf2161037e1c4519b302c023095b0c7d8e1f2d19d1b7e4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]     Checking xi-unicode v0.2.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]     Checking colorful v0.2.1
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking mint v0.5.4
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]     Checking glam v0.8.5
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.9
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling minimp3-sys v0.3.1
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking hibitset v0.6.2
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking rustc-hash v1.0.1
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking ogg v0.7.0
[INFO] [stderr]     Checking crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling gl_generator v0.13.1
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]     Checking relevant v0.4.2
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]     Checking lewton v0.9.4
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]     Checking gfx_core v0.9.2
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking freetype v0.4.1
[INFO] [stderr]     Checking slice-deque v0.2.4
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking nix v0.15.0
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]    Compiling backtrace v0.3.42
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.4
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.6
[INFO] [stderr]     Checking gfx-hal v0.4.1
[INFO] [stderr]     Checking servo-fontconfig v0.4.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking euclid v0.20.7
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling gfx_gl v0.6.0
[INFO] [stderr]     Checking ash v0.29.0
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking minimp3 v0.3.3
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]     Checking cpal v0.8.2
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling wayland-client v0.23.6
[INFO] [stderr]    Compiling wayland-protocols v0.23.6
[INFO] [stderr]     Checking gfx v0.18.2
[INFO] [stderr]     Checking sid v0.5.2
[INFO] [stderr]    Compiling wayland-client v0.21.13
[INFO] [stderr]    Compiling wayland-protocols v0.21.13
[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 --crate-type lib --emit=dep-info,metadata,link -Cembed-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=b3468758892a6b1b -C extra-filename=-b3468758892a6b1b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-1c8cd06d03ec2d01.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-179b18ceb2cbc452.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-de12218e15042935.rmeta --cap-lints allow --cap-lints=forbid --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" "939cedb54f2dbda6ddf2161037e1c4519b302c023095b0c7d8e1f2d19d1b7e4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "939cedb54f2dbda6ddf2161037e1c4519b302c023095b0c7d8e1f2d19d1b7e4a", kill_on_drop: false }`
[INFO] [stdout] 939cedb54f2dbda6ddf2161037e1c4519b302c023095b0c7d8e1f2d19d1b7e4a
