[INFO] updating cached repository phamlequang/turtle
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/phamlequang/turtle
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/phamlequang/turtle" "work/ex/beta-1.38-1/sources/1.37.0/gh/phamlequang/turtle"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/phamlequang/turtle'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/phamlequang/turtle" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/phamlequang/turtle"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/phamlequang/turtle'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b004f87e8b63838344ca5bf706af21eaf3b11dab
[INFO] sha for GitHub repo phamlequang/turtle: b004f87e8b63838344ca5bf706af21eaf3b11dab
[INFO] validating manifest of phamlequang/turtle 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 phamlequang/turtle 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 phamlequang/turtle
[INFO] finished frobbing phamlequang/turtle
[INFO] frobbed toml for phamlequang/turtle written to work/ex/beta-1.38-1/sources/1.37.0/gh/phamlequang/turtle/Cargo.toml
[INFO] started frobbing phamlequang/turtle
[INFO] finished frobbing phamlequang/turtle
[INFO] frobbed toml for phamlequang/turtle written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/phamlequang/turtle/Cargo.toml
[INFO] crate phamlequang/turtle 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 phamlequang/turtle 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/phamlequang/turtle:/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] 08857d53257046b1a32dbff164e96bf903aab7359b7f8e0bdc370ac6c99da88b
[INFO] running `"docker" "start" "-a" "08857d53257046b1a32dbff164e96bf903aab7359b7f8e0bdc370ac6c99da88b"`
[INFO] [stderr]    Compiling utf8parse v0.1.1
[INFO] [stderr]    Compiling subprocess v0.1.18
[INFO] [stderr]    Compiling ctrlc v3.1.1
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling serde_derive v1.0.84
[INFO] [stderr]    Compiling rustyline v3.0.0
[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-3.0.0/src/lib.rs:655:43
[INFO] [stderr]     |
[INFO] [stderr] 655 |             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" "08857d53257046b1a32dbff164e96bf903aab7359b7f8e0bdc370ac6c99da88b"`
[INFO] running `"docker" "rm" "-f" "08857d53257046b1a32dbff164e96bf903aab7359b7f8e0bdc370ac6c99da88b"`
[INFO] [stdout] 08857d53257046b1a32dbff164e96bf903aab7359b7f8e0bdc370ac6c99da88b