[INFO] updating cached repository https://github.com/benbrandt/d20
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/benbrandt/d20
[INFO] [stderr]  - [deleted]         (none)     -> rust/nightly-2019-09-27
[INFO] [stderr]    e708be1..ede7518  master                  -> master
[INFO] [stderr]  * [new branch]      rust/nightly-2019-09-28 -> rust/nightly-2019-09-28
[INFO] [stderr]  * [new branch]      rust/nightly-2019-10-05 -> rust/nightly-2019-10-05
[INFO] [stderr]  * [new branch]      rust/nightly-2019-10-06 -> rust/nightly-2019-10-06
[INFO] [stderr]  * [new branch]      rust/nightly-2019-10-07 -> rust/nightly-2019-10-07
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ede7518a7a4fbd8f4ab605c872628b45d44501e5
[INFO] testing benbrandt/d20 against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenbrandt%2Fd20" "work/builds/worker-8/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/benbrandt/d20 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/benbrandt/d20
[INFO] finished tweaking git repo https://github.com/benbrandt/d20
[INFO] tweaked toml for git repo https://github.com/benbrandt/d20 written to work/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/benbrandt/d20 already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] ac475a1b25308ae36e108c101e33522f07ba78f25508a8f05885c200a05ff19c
[INFO] running `"docker" "start" "-a" "ac475a1b25308ae36e108c101e33522f07ba78f25508a8f05885c200a05ff19c"`
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling route-recognizer v0.1.13
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling data-encoding v2.1.2
[INFO] [stderr]    Compiling ascii v0.9.3
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling uuid v0.6.5
[INFO] [stderr]    Compiling pq-sys v0.4.6
[INFO] [stderr]    Compiling uname v0.1.1
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]    Compiling im v12.3.4
[INFO] [stderr]    Compiling sentry v0.17.0
[INFO] [stderr]    Compiling buf_redux v0.8.4
[INFO] [stderr]    Compiling twoway v0.1.8
[INFO] [stderr]    Compiling sized-chunks v0.1.3
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling cookie v0.12.0
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]    Compiling http v0.1.18
[INFO] [stderr]    Compiling rand_pcg v0.2.0
[INFO] [stderr]    Compiling env_logger v0.7.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling tokio-reactor v0.1.10
[INFO] [stderr]    Compiling scheduled-thread-pool v0.2.2
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling tokio-threadpool v0.1.16
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling mime_guess v1.8.7
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling r2d2 v0.8.5
[INFO] [stderr]    Compiling bigdecimal v0.0.14
[INFO] [stderr]    Compiling http-body v0.1.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling openssl-sys v0.9.50
[INFO] [stderr]    Compiling zstd-sys v1.4.12+zstd.1.4.2
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling openssl v0.10.25
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling multipart v0.16.1
[INFO] [stderr]    Compiling backtrace v0.3.38
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling brotli2 v0.3.2
[INFO] [stderr]    Compiling futures-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling publicsuffix v1.5.3
[INFO] [stderr]    Compiling http-service v0.3.1
[INFO] [stderr] error: could not compile `syn`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --edition=2018 --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.5/src/lib.rs --color never --crate-type lib --emit=dep-info,metadata,link -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=c7ec7946f8fb9d23 -C extra-filename=-c7ec7946f8fb9d23 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d33b0af5b28df630.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-e3d13048ae7ecaf6.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-7157d860fec2ae23.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 `"docker" "inspect" "ac475a1b25308ae36e108c101e33522f07ba78f25508a8f05885c200a05ff19c"`
[INFO] running `"docker" "rm" "-f" "ac475a1b25308ae36e108c101e33522f07ba78f25508a8f05885c200a05ff19c"`
[INFO] [stdout] ac475a1b25308ae36e108c101e33522f07ba78f25508a8f05885c200a05ff19c