[INFO] crate interact_prompt 0.3.5 is already in cache
[INFO] extracting crate interact_prompt 0.3.5 into work/ex/beta-1.37-6/sources/1.36.0/reg/interact_prompt/0.3.5
[INFO] extracting crate interact_prompt 0.3.5 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/interact_prompt/0.3.5
[INFO] validating manifest of interact_prompt-0.3.5 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 interact_prompt-0.3.5 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 interact_prompt-0.3.5
[INFO] finished frobbing interact_prompt-0.3.5
[INFO] frobbed toml for interact_prompt-0.3.5 written to work/ex/beta-1.37-6/sources/1.36.0/reg/interact_prompt/0.3.5/Cargo.toml
[INFO] started frobbing interact_prompt-0.3.5
[INFO] finished frobbing interact_prompt-0.3.5
[INFO] frobbed toml for interact_prompt-0.3.5 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/interact_prompt/0.3.5/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 interact_prompt-0.3.5 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/interact_prompt/0.3.5:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] df15de6cd87e9db649931603ab0fedde94c7e54b8d790752671042acbb5baa7f
[INFO] running `"docker" "start" "-a" "df15de6cd87e9db649931603ab0fedde94c7e54b8d790752671042acbb5baa7f"`
[INFO] [stderr]    Compiling rustyline v2.1.0
[INFO] [stderr]    Compiling interact_derive v0.3.5
[INFO] [stderr]    Compiling ron v0.4.2
[INFO] [stderr] error[E0283]: type annotations required: cannot resolve `std::string::String: std::convert::AsRef<_>`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustyline-2.1.0/src/lib.rs:639:43
[INFO] [stderr]     |
[INFO] [stderr] 639 |             editor.add_history_entry(line.as_ref());
[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 E0283`.
[INFO] [stderr] error: Could not compile `rustyline`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "df15de6cd87e9db649931603ab0fedde94c7e54b8d790752671042acbb5baa7f"`
[INFO] running `"docker" "rm" "-f" "df15de6cd87e9db649931603ab0fedde94c7e54b8d790752671042acbb5baa7f"`
[INFO] [stdout] df15de6cd87e9db649931603ab0fedde94c7e54b8d790752671042acbb5baa7f