[INFO] updating cached repository https://github.com/mosmeh/mahjongg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88482e64c330364159cf42e324e5c78f7a7afacb
[INFO] testing mosmeh/mahjongg against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmosmeh%2Fmahjongg" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mosmeh/mahjongg on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mosmeh/mahjongg
[INFO] finished tweaking git repo https://github.com/mosmeh/mahjongg
[INFO] tweaked toml for git repo https://github.com/mosmeh/mahjongg written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/mosmeh/mahjongg already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "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] cd163de1fe9b7be50b14f319b0de05e9b2859194aa9c9125dff07c54c6c72e74
[INFO] running `Command { std: "docker" "start" "-a" "cd163de1fe9b7be50b14f319b0de05e9b2859194aa9c9125dff07c54c6c72e74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd163de1fe9b7be50b14f319b0de05e9b2859194aa9c9125dff07c54c6c72e74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd163de1fe9b7be50b14f319b0de05e9b2859194aa9c9125dff07c54c6c72e74", kill_on_drop: false }`
[INFO] [stdout] cd163de1fe9b7be50b14f319b0de05e9b2859194aa9c9125dff07c54c6c72e74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6aced4d1e0a2d94455664379fb1f35adddc7500548fadb93d1e1e9b72bcedea
[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" "d6aced4d1e0a2d94455664379fb1f35adddc7500548fadb93d1e1e9b72bcedea", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling float-cmp v0.5.3
[INFO] [stderr]    Compiling xmlparser v0.13.2
[INFO] [stderr]    Compiling ttf-parser v0.6.2
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling rgb v0.8.18
[INFO] [stderr]    Compiling pico-args v0.3.3
[INFO] [stderr]    Compiling unicode-vo v0.1.0
[INFO] [stderr]    Compiling unicode-script v0.5.2
[INFO] [stderr]    Compiling rctree v0.3.3
[INFO] [stderr]    Compiling xmlwriter v0.1.0
[INFO] [stderr]    Compiling kurbo v0.6.2
[INFO] [stderr]    Compiling data-url v0.1.0
[INFO] [stderr]    Compiling simplecss v0.2.0
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling memmap2 v0.1.0
[INFO] [stderr]    Compiling termios v0.3.2
[INFO] [stderr]    Compiling terminal_size v0.1.13
[INFO] [stderr]    Compiling flate2 v1.0.16
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling ordered-float v1.1.0
[INFO] [stderr]    Compiling png v0.16.6
[INFO] [stderr]    Compiling gfx_gl v0.6.1
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling wayland-sys v0.21.13
[INFO] [stderr]    Compiling svgtypes v0.5.0
[INFO] [stderr]    Compiling cc v1.0.57
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling svgfilters v0.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling roxmltree v0.13.0
[INFO] [stderr]    Compiling rusttype v0.8.3
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling wayland-commons v0.21.13
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling rusttype v0.7.9
[INFO] [stderr]    Compiling piston2d-graphics v0.36.0
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling dlv-list v0.2.2
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling fontdb v0.1.0
[INFO] [stderr]    Compiling ordered-multimap v0.2.4
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling rustybuzz v0.1.1
[INFO] [stderr]    Compiling tiny-skia v0.1.0
[INFO] [stderr]    Compiling rust-ini v0.15.3
[INFO] [stderr]    Compiling wayland-client v0.21.13
[INFO] [stderr]    Compiling wayland-protocols v0.21.13
[INFO] [stderr]    Compiling console v0.11.3
[INFO] [stderr]    Compiling dialoguer v0.6.2
[INFO] [stderr]    Compiling jpeg-decoder v0.1.20
[INFO] [stderr]    Compiling syn-mid v0.5.0
[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-1.0.33/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=42b4851ed8587fe1 -C extra-filename=-42b4851ed8587fe1 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d5bf7ac731a44025.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-6f635ec2aa131681.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-a51f88c314603c68.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" "d6aced4d1e0a2d94455664379fb1f35adddc7500548fadb93d1e1e9b72bcedea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6aced4d1e0a2d94455664379fb1f35adddc7500548fadb93d1e1e9b72bcedea", kill_on_drop: false }`
[INFO] [stdout] d6aced4d1e0a2d94455664379fb1f35adddc7500548fadb93d1e1e9b72bcedea