[INFO] updating cached repository mraof/morbitgen
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mraof/morbitgen
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mraof/morbitgen" "work/ex/beta-1.38-1/sources/1.37.0/gh/mraof/morbitgen"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mraof/morbitgen'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mraof/morbitgen" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mraof/morbitgen"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mraof/morbitgen'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3d9e537a20ac2ebb0e36156ddacae3cf791a9db8
[INFO] sha for GitHub repo mraof/morbitgen: 3d9e537a20ac2ebb0e36156ddacae3cf791a9db8
[INFO] validating manifest of mraof/morbitgen 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 mraof/morbitgen 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 mraof/morbitgen
[INFO] finished frobbing mraof/morbitgen
[INFO] frobbed toml for mraof/morbitgen written to work/ex/beta-1.38-1/sources/1.37.0/gh/mraof/morbitgen/Cargo.toml
[INFO] started frobbing mraof/morbitgen
[INFO] finished frobbing mraof/morbitgen
[INFO] frobbed toml for mraof/morbitgen written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mraof/morbitgen/Cargo.toml
[INFO] crate mraof/morbitgen 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 mraof/morbitgen 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-7/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/mraof/morbitgen:/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] 6b2c53885dbeea364f4af69e41365d714c16a918dfa38f2746abb4aae4b5d0bc
[INFO] running `"docker" "start" "-a" "6b2c53885dbeea364f4af69e41365d714c16a918dfa38f2746abb4aae4b5d0bc"`
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.3
[INFO] [stderr]    Compiling base-x v0.2.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.26
[INFO] [stderr]    Compiling stdweb v0.4.12
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]    Compiling failure v0.1.3
[INFO] [stderr]    Compiling stdweb-derive v0.5.1
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.4
[INFO] [stderr]    Compiling yew v0.4.0
[INFO] [stderr]    Compiling morbitgen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'rand::distributions::WeightedChoice': use WeightedIndex instead
[INFO] [stderr]   --> src/lib.rs:22:27
[INFO] [stderr]    |
[INFO] [stderr] 22 | use rand::distributions::{WeightedChoice, Weighted, Distribution};
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::distributions::Weighted': use WeightedIndex instead
[INFO] [stderr]   --> src/lib.rs:22:43
[INFO] [stderr]    |
[INFO] [stderr] 22 | use rand::distributions::{WeightedChoice, Weighted, Distribution};
[INFO] [stderr]    |                                           ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::distributions::Weighted': use WeightedIndex instead
[INFO] [stderr]    --> src/lib.rs:371:29
[INFO] [stderr]     |
[INFO] [stderr] 371 |                             Weighted {
[INFO] [stderr]     |                             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::distributions::WeightedChoice': use WeightedIndex instead
[INFO] [stderr]    --> src/lib.rs:377:30
[INFO] [stderr]     |
[INFO] [stderr] 377 |                     let wc = WeightedChoice::new(&mut vec);
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::distributions::Weighted::weight': use WeightedIndex instead
[INFO] [stderr]    --> src/lib.rs:372:33
[INFO] [stderr]     |
[INFO] [stderr] 372 |                                 weight: chance.chance(),
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::distributions::Weighted::item': use WeightedIndex instead
[INFO] [stderr]    --> src/lib.rs:373:33
[INFO] [stderr]     |
[INFO] [stderr] 373 |                                 item: *chance,
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::distributions::WeightedChoice::<'a, T>::new': use WeightedIndex instead
[INFO] [stderr]    --> src/lib.rs:377:30
[INFO] [stderr]     |
[INFO] [stderr] 377 |                     let wc = WeightedChoice::new(&mut vec);
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(rust_2018_preview, uniform_paths)]
[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 `morbitgen`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6b2c53885dbeea364f4af69e41365d714c16a918dfa38f2746abb4aae4b5d0bc"`
[INFO] running `"docker" "rm" "-f" "6b2c53885dbeea364f4af69e41365d714c16a918dfa38f2746abb4aae4b5d0bc"`
[INFO] [stdout] 6b2c53885dbeea364f4af69e41365d714c16a918dfa38f2746abb4aae4b5d0bc