[INFO] updating cached repository michaelsproul/aus_senate_site
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/michaelsproul/aus_senate_site
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/michaelsproul/aus_senate_site" "work/ex/beta-1.38-1/sources/1.37.0/gh/michaelsproul/aus_senate_site"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/michaelsproul/aus_senate_site'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/michaelsproul/aus_senate_site" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/michaelsproul/aus_senate_site"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/michaelsproul/aus_senate_site'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f1769f2312333b5705faf56ab1b0935ae4a38c9a
[INFO] sha for GitHub repo michaelsproul/aus_senate_site: f1769f2312333b5705faf56ab1b0935ae4a38c9a
[INFO] validating manifest of michaelsproul/aus_senate_site 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 michaelsproul/aus_senate_site 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 michaelsproul/aus_senate_site
[INFO] finished frobbing michaelsproul/aus_senate_site
[INFO] frobbed toml for michaelsproul/aus_senate_site written to work/ex/beta-1.38-1/sources/1.37.0/gh/michaelsproul/aus_senate_site/Cargo.toml
[INFO] started frobbing michaelsproul/aus_senate_site
[INFO] finished frobbing michaelsproul/aus_senate_site
[INFO] frobbed toml for michaelsproul/aus_senate_site written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/michaelsproul/aus_senate_site/Cargo.toml
[INFO] crate michaelsproul/aus_senate_site 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing michaelsproul/aus_senate_site against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/michaelsproul/aus_senate_site:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 59ffb589571f23a4838b92ee85870dc03c43337b5740adc072dd52e897553774
[INFO] running `"docker" "start" "-a" "59ffb589571f23a4838b92ee85870dc03c43337b5740adc072dd52e897553774"`
[INFO] [stderr]    Compiling lazy_static v0.2.10
[INFO] [stderr]    Compiling case v0.1.0
[INFO] [stderr]    Compiling unwrap v1.1.0
[INFO] [stderr]    Compiling rust-gmp v0.5.0
[INFO] [stderr]    Compiling itertools v0.6.5
[INFO] [stderr]    Compiling csv-core v0.1.3
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling iron v0.5.1
[INFO] [stderr]    Compiling derive-error v0.0.4
[INFO] [stderr]    Compiling csv v1.0.0-beta.5
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling persistent v0.3.0
[INFO] [stderr]    Compiling mount v0.3.0
[INFO] [stderr]    Compiling router v0.5.1
[INFO] [stderr]    Compiling bodyparser v0.5.0
[INFO] [stderr]    Compiling staticfile v0.4.0
[INFO] [stderr]    Compiling urlencoded v0.5.0
[INFO] [stderr]    Compiling handlebars v0.29.1
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling handlebars v0.26.2
[INFO] [stderr]    Compiling aus_senate v0.2.0 (https://github.com/michaelsproul/aus_senate.git#b824d6ad)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/git/checkouts/aus_senate-c4cda8868344fe99/b824d6a/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(conservative_impl_trait)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `aus_senate`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "59ffb589571f23a4838b92ee85870dc03c43337b5740adc072dd52e897553774"`
[INFO] running `"docker" "rm" "-f" "59ffb589571f23a4838b92ee85870dc03c43337b5740adc072dd52e897553774"`
[INFO] [stdout] 59ffb589571f23a4838b92ee85870dc03c43337b5740adc072dd52e897553774