[INFO] crate libstripe 0.5.9 is already in cache
[INFO] extracting crate libstripe 0.5.9 into work/ex/beta-1.37-6/sources/1.36.0/reg/libstripe/0.5.9
[INFO] extracting crate libstripe 0.5.9 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/libstripe/0.5.9
[INFO] validating manifest of libstripe-0.5.9 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of libstripe-0.5.9 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing libstripe-0.5.9
[INFO] finished frobbing libstripe-0.5.9
[INFO] frobbed toml for libstripe-0.5.9 written to work/ex/beta-1.37-6/sources/1.36.0/reg/libstripe/0.5.9/Cargo.toml
[INFO] started frobbing libstripe-0.5.9
[INFO] finished frobbing libstripe-0.5.9
[INFO] frobbed toml for libstripe-0.5.9 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/libstripe/0.5.9/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing libstripe-0.5.9 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/libstripe/0.5.9:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] c7d9eb34f556a843b90c0d68fc40bf5f611866b55b47ac6435c53d91e86f98e6
[INFO] running `"docker" "start" "-a" "c7d9eb34f556a843b90c0d68fc40bf5f611866b55b47ac6435c53d91e86f98e6"`
[INFO] [stderr]    Compiling serde_qs v0.4.6
[INFO] [stderr]    Compiling hyper-tls v0.3.2
[INFO] [stderr]    Compiling reqwest v0.9.19
[INFO] [stderr]    Compiling libstripe v0.5.9 (/opt/crater/workdir)
[INFO] [stderr] error: Could not compile `libstripe`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --edition=2018 --crate-name libstripe src/lib.rs --color never --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 --cfg 'feature="default"' -C metadata=b79a8e9c35330cbf -C extra-filename=-b79a8e9c35330cbf --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern futures=/opt/crater/target/debug/deps/libfutures-d5ea9e389594d93f.rlib --extern http=/opt/crater/target/debug/deps/libhttp-8914bb68364de224.rlib --extern mime=/opt/crater/target/debug/deps/libmime-1472717840a8711f.rlib --extern reqwest=/opt/crater/target/debug/deps/libreqwest-f4dcf01fc9aba02c.rlib --extern serde=/opt/crater/target/debug/deps/libserde-7cdd0423dd712cd1.rlib --extern serde_derive=/opt/crater/target/debug/deps/libserde_derive-118206482c25430d.so --extern serde_json=/opt/crater/target/debug/deps/libserde_json-434885ec94ec0f9f.rlib --extern serde_qs=/opt/crater/target/debug/deps/libserde_qs-a1f0a97538619b4e.rlib --cap-lints=warn -L native=/opt/crater/target/debug/build/backtrace-sys-897f45a579ca139a/out` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "c7d9eb34f556a843b90c0d68fc40bf5f611866b55b47ac6435c53d91e86f98e6"`
[INFO] running `"docker" "rm" "-f" "c7d9eb34f556a843b90c0d68fc40bf5f611866b55b47ac6435c53d91e86f98e6"`
[INFO] [stdout] c7d9eb34f556a843b90c0d68fc40bf5f611866b55b47ac6435c53d91e86f98e6