[INFO] cloning repository https://github.com/ghost2-discord/ghost2-wrapper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ghost2-discord/ghost2-wrapper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghost2-discord%2Fghost2-wrapper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghost2-discord%2Fghost2-wrapper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f613732601857177425f6840b9954f410cb4cbdf
[INFO] testing ghost2-discord/ghost2-wrapper against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghost2-discord%2Fghost2-wrapper" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ghost2-discord/ghost2-wrapper on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ghost2-discord/ghost2-wrapper
[INFO] finished tweaking git repo https://github.com/ghost2-discord/ghost2-wrapper
[INFO] tweaked toml for git repo https://github.com/ghost2-discord/ghost2-wrapper written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/ghost2-discord/ghost2-wrapper already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--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 str-buf v1.0.2
[INFO] [stderr]   Downloaded error-code v2.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1b425e17382c578db1b60b781b75f19a9726f10ccbd256813fe45b2b5924c56
[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" "d1b425e17382c578db1b60b781b75f19a9726f10ccbd256813fe45b2b5924c56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1b425e17382c578db1b60b781b75f19a9726f10ccbd256813fe45b2b5924c56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1b425e17382c578db1b60b781b75f19a9726f10ccbd256813fe45b2b5924c56", kill_on_drop: false }`
[INFO] [stdout] d1b425e17382c578db1b60b781b75f19a9726f10ccbd256813fe45b2b5924c56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d14b02ce0bdc7a9974d28cebd91440f0bde16d0799b057da12c70536c442b858
[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" "d14b02ce0bdc7a9974d28cebd91440f0bde16d0799b057da12c70536c442b858", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]    Compiling iced_core v0.2.1
[INFO] [stderr]    Compiling glam v0.8.7
[INFO] [stderr]    Compiling svg_fmt v0.2.1
[INFO] [stderr]    Compiling instant v0.1.6
[INFO] [stderr]    Compiling wayland-sys v0.27.0
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.9
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling hibitset v0.6.3
[INFO] [stderr]    Compiling relevant v0.4.2
[INFO] [stderr]    Compiling wayland-scanner v0.27.0
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling ordered-float v1.1.0
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]    Compiling euclid v0.20.14
[INFO] [stderr]    Compiling line_drawing v0.7.0
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling wayland-sys v0.23.6
[INFO] [stderr]    Compiling euclid_macros v0.1.0
[INFO] [stderr]    Compiling iced_style v0.1.0
[INFO] [stderr]    Compiling zerocopy-derive v0.1.4
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling lyon_geom v0.14.1
[INFO] [stderr]    Compiling wayland-client v0.27.0
[INFO] [stderr]    Compiling wayland-protocols v0.27.0
[INFO] [stderr]    Compiling euclid v0.19.9
[INFO] [stderr]    Compiling zerocopy v0.2.8
[INFO] [stderr]    Compiling lyon_path v0.14.0
[INFO] [stderr]    Compiling wayland-client v0.23.6
[INFO] [stderr]    Compiling wayland-protocols v0.23.6
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling net2 v0.2.35
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling freetype v0.4.1
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling servo-fontconfig v0.4.0
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling gfx-hal v0.4.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rusttype v0.8.3
[INFO] [stderr]    Compiling guillotiere v0.4.4
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]    Compiling ash v0.29.0
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling font-kit v0.4.0
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[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-1.0.40/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --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=0057a31156123e96 -C extra-filename=-0057a31156123e96 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-e80dca31010edf61.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-26cfd327dba8716c.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-5ee0227a60781e0f.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" "d14b02ce0bdc7a9974d28cebd91440f0bde16d0799b057da12c70536c442b858", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d14b02ce0bdc7a9974d28cebd91440f0bde16d0799b057da12c70536c442b858", kill_on_drop: false }`
[INFO] [stdout] d14b02ce0bdc7a9974d28cebd91440f0bde16d0799b057da12c70536c442b858