[INFO] updating cached repository mthadley/rclac
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mthadley/rclac
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mthadley/rclac" "work/ex/beta-1.38-1/sources/1.37.0/gh/mthadley/rclac"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mthadley/rclac'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mthadley/rclac" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mthadley/rclac"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mthadley/rclac'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 55cb23dabd6261c2d0751b7921e496d1472a0117
[INFO] sha for GitHub repo mthadley/rclac: 55cb23dabd6261c2d0751b7921e496d1472a0117
[INFO] validating manifest of mthadley/rclac 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 mthadley/rclac 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 mthadley/rclac
[INFO] finished frobbing mthadley/rclac
[INFO] frobbed toml for mthadley/rclac written to work/ex/beta-1.38-1/sources/1.37.0/gh/mthadley/rclac/Cargo.toml
[INFO] started frobbing mthadley/rclac
[INFO] finished frobbing mthadley/rclac
[INFO] frobbed toml for mthadley/rclac written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mthadley/rclac/Cargo.toml
[INFO] crate mthadley/rclac 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 mthadley/rclac 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/mthadley/rclac:/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] ae6f8593e85ad263dfe0d60d25505bddd4ed84c63e75913e947f098defe2fda6
[INFO] running `"docker" "start" "-a" "ae6f8593e85ad263dfe0d60d25505bddd4ed84c63e75913e947f098defe2fda6"`
[INFO] [stderr]    Compiling thread_local v0.3.3
[INFO] [stderr]    Compiling rustyline v1.0.0 (https://github.com/mthadley/rustyline?branch=hints#3030e33e)
[INFO] [stderr]    Compiling regex v0.2.1
[INFO] [stderr] error[E0283]: type annotations required: cannot resolve `std::string::String: std::convert::AsRef<_>`
[INFO] [stderr]     --> /opt/crater/cargo-home/git/checkouts/rustyline-a6bb4f7dedbf15e5/3030e33/src/lib.rs:1185:49
[INFO] [stderr]      |
[INFO] [stderr] 1185 |                 self.editor.add_history_entry(l.as_ref()); // TODO Validate
[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" "ae6f8593e85ad263dfe0d60d25505bddd4ed84c63e75913e947f098defe2fda6"`
[INFO] running `"docker" "rm" "-f" "ae6f8593e85ad263dfe0d60d25505bddd4ed84c63e75913e947f098defe2fda6"`
[INFO] [stdout] ae6f8593e85ad263dfe0d60d25505bddd4ed84c63e75913e947f098defe2fda6