[INFO] updating cached repository gildaf/carrot
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gildaf/carrot
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gildaf/carrot" "work/ex/beta-1.38-1/sources/1.37.0/gh/gildaf/carrot"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/gildaf/carrot'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gildaf/carrot" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gildaf/carrot"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gildaf/carrot'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e5fd965126df321d5d9bbbe7b2559710ca12c05b
[INFO] sha for GitHub repo gildaf/carrot: e5fd965126df321d5d9bbbe7b2559710ca12c05b
[INFO] validating manifest of gildaf/carrot on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gildaf/carrot on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gildaf/carrot
[INFO] finished frobbing gildaf/carrot
[INFO] frobbed toml for gildaf/carrot written to work/ex/beta-1.38-1/sources/1.37.0/gh/gildaf/carrot/Cargo.toml
[INFO] started frobbing gildaf/carrot
[INFO] finished frobbing gildaf/carrot
[INFO] frobbed toml for gildaf/carrot written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gildaf/carrot/Cargo.toml
[INFO] crate gildaf/carrot already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing gildaf/carrot against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gildaf/carrot:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] a59cdb9d29a2ef5bcf6c0909e7ac625175fb57a54659dd49955b050c89ab3cfd
[INFO] running `"docker" "start" "-a" "a59cdb9d29a2ef5bcf6c0909e7ac625175fb57a54659dd49955b050c89ab3cfd"`
[INFO] [stderr]    Compiling crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling openssl-sys v0.9.41
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling rusoto_core v0.36.0
[INFO] [stderr]    Compiling bytes v0.4.11
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling syn v0.15.27
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling serde_urlencoded v0.5.4
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling env_logger v0.6.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling tokio-executor v0.1.6
[INFO] [stderr]    Compiling tokio-io v0.1.11
[INFO] [stderr]    Compiling http v0.1.16
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling tokio-timer v0.2.10
[INFO] [stderr]    Compiling tokio-current-thread v0.1.4
[INFO] [stderr]    Compiling openssl v0.10.18
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling tokio-reactor v0.1.8
[INFO] [stderr]    Compiling crossbeam v0.6.0
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-threadpool v0.1.11
[INFO] [stderr]    Compiling h2 v0.1.16
[INFO] [stderr]    Compiling tokio-fs v0.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]    Compiling tokio v0.1.17
[INFO] [stderr]    Compiling hyper v0.12.24
[INFO] [stderr]    Compiling hyper-tls v0.3.1
[INFO] [stderr]    Compiling rusoto_credential v0.15.0
[INFO] [stderr]    Compiling rusoto_ec2 v0.36.0
[INFO] [stderr]    Compiling rusoto_cloudtrail v0.36.0
[INFO] [stderr]    Compiling rusoto_sts v0.36.0
[INFO] [stderr] error: Could not compile `rusoto_ec2`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name rusoto_ec2 /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rusoto_ec2-0.36.0/src/lib.rs --color never --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="native-tls"' -C metadata=6a712e607ded72bc -C extra-filename=-6a712e607ded72bc --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern futures=/opt/crater/target/debug/deps/libfutures-6a92a1296f37950e.rmeta --extern rusoto_core=/opt/crater/target/debug/deps/librusoto_core-4cdd4ec2d6518fe1.rmeta --extern serde_urlencoded=/opt/crater/target/debug/deps/libserde_urlencoded-e9b7cecce0fb5b2e.rmeta --extern xml=/opt/crater/target/debug/deps/libxml-ce7a8940e0ab028b.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `"docker" "inspect" "a59cdb9d29a2ef5bcf6c0909e7ac625175fb57a54659dd49955b050c89ab3cfd"`
[INFO] running `"docker" "rm" "-f" "a59cdb9d29a2ef5bcf6c0909e7ac625175fb57a54659dd49955b050c89ab3cfd"`
[INFO] [stdout] a59cdb9d29a2ef5bcf6c0909e7ac625175fb57a54659dd49955b050c89ab3cfd