[INFO] updating cached repository CosineP/madlibs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/CosineP/madlibs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/CosineP/madlibs" "work/ex/beta-1.38-1/sources/1.37.0/gh/CosineP/madlibs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/CosineP/madlibs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/CosineP/madlibs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CosineP/madlibs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CosineP/madlibs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c43000cf22ae26eeca6efb4f2d5502706dafc483
[INFO] sha for GitHub repo CosineP/madlibs: c43000cf22ae26eeca6efb4f2d5502706dafc483
[INFO] validating manifest of CosineP/madlibs 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 CosineP/madlibs 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 CosineP/madlibs
[INFO] finished frobbing CosineP/madlibs
[INFO] frobbed toml for CosineP/madlibs written to work/ex/beta-1.38-1/sources/1.37.0/gh/CosineP/madlibs/Cargo.toml
[INFO] started frobbing CosineP/madlibs
[INFO] finished frobbing CosineP/madlibs
[INFO] frobbed toml for CosineP/madlibs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CosineP/madlibs/Cargo.toml
[INFO] crate CosineP/madlibs 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 CosineP/madlibs 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-6/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/CosineP/madlibs:/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] 96bd227cf93ee1a7b79eb57054d3b93b2554396d64c18f29f40eafb7db51f61d
[INFO] running `"docker" "start" "-a" "96bd227cf93ee1a7b79eb57054d3b93b2554396d64c18f29f40eafb7db51f61d"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.19
[INFO] [stderr]    Compiling rustmorpha v0.1.0 (https://github.com/jfschaefer/rust-morpha.git#47b5a3e5)
[INFO] [stderr]    Compiling rust-senna v0.0.1 (https://github.com/jfschaefer/rust-senna.git#ff14b50b)
[INFO] [stderr]    Compiling gnuplot v0.0.21
[INFO] [stderr]    Compiling doc-comment v0.1.2
[INFO] [stderr]    Compiling tap-reader v1.0.1
[INFO] [stderr]    Compiling try_from v0.2.2
[INFO] [stderr]    Compiling unidecode v0.2.0
[INFO] [stderr]    Compiling nlp-annotations v0.1.2
[INFO] [stderr]    Compiling libxml v0.2.4
[INFO] [stderr]    Compiling relay v0.1.1
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling want v0.0.4
[INFO] [stderr]    Compiling simple_logger v0.5.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling toml v0.4.7
[INFO] [stderr]    Compiling bincode v1.0.1
[INFO] [stderr]    Compiling tokio-io v0.1.8
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling tokio-codec v0.1.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.6
[INFO] [stderr]    Compiling syn v0.15.6
[INFO] [stderr]    Compiling isolang v0.2.1
[INFO] [stderr]    Compiling native-tls v0.1.5
[INFO] [stderr]    Compiling tokio-fs v0.1.3
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling tokio-reactor v0.1.5
[INFO] [stderr]    Compiling tokio-udp v0.1.2
[INFO] [stderr]    Compiling tokio-tcp v0.1.1
[INFO] [stderr]    Compiling tokio-uds v0.2.1
[INFO] [stderr]    Compiling tokio v0.1.8
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling llamapun v0.2.0 (https://github.com/KWARC/llamapun#cb051c27)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/git/checkouts/llamapun-fc506f07950fe5f5/cb051c2/src/lib.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![feature(slice_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/git/checkouts/llamapun-fc506f07950fe5f5/cb051c2/src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #![feature(type_ascription)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/git/checkouts/llamapun-fc506f07950fe5f5/cb051c2/src/lib.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | #![feature(box_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `llamapun`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "96bd227cf93ee1a7b79eb57054d3b93b2554396d64c18f29f40eafb7db51f61d"`
[INFO] running `"docker" "rm" "-f" "96bd227cf93ee1a7b79eb57054d3b93b2554396d64c18f29f40eafb7db51f61d"`
[INFO] [stdout] 96bd227cf93ee1a7b79eb57054d3b93b2554396d64c18f29f40eafb7db51f61d