[INFO] updating cached repository gears-project/gears-cli
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gears-project/gears-cli
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gears-project/gears-cli" "work/ex/beta-1.38-1/sources/1.37.0/gh/gears-project/gears-cli"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/gears-project/gears-cli'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gears-project/gears-cli" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gears-project/gears-cli"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gears-project/gears-cli'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 833443ba32e689acfc23b183101568429b73b4e1
[INFO] sha for GitHub repo gears-project/gears-cli: 833443ba32e689acfc23b183101568429b73b4e1
[INFO] validating manifest of gears-project/gears-cli 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 gears-project/gears-cli 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 gears-project/gears-cli
[INFO] finished frobbing gears-project/gears-cli
[INFO] frobbed toml for gears-project/gears-cli written to work/ex/beta-1.38-1/sources/1.37.0/gh/gears-project/gears-cli/Cargo.toml
[INFO] started frobbing gears-project/gears-cli
[INFO] finished frobbing gears-project/gears-cli
[INFO] frobbed toml for gears-project/gears-cli written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gears-project/gears-cli/Cargo.toml
[INFO] crate gears-project/gears-cli 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing gears-project/gears-cli 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/gears-project/gears-cli:/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] 7a0d55c5c9873001dfc4870a6570bb45391d15f484048b8441774d91de872a27
[INFO] running `"docker" "start" "-a" "7a0d55c5c9873001dfc4870a6570bb45391d15f484048b8441774d91de872a27"`
[INFO] [stderr]    Compiling hashbrown v0.2.1
[INFO] [stderr]    Compiling ratel v0.7.0
[INFO] [stderr]    Compiling actix-web v0.7.19
[INFO] [stderr]    Compiling tokio-sync v0.1.2
[INFO] [stderr]    Compiling tower-service v0.1.0
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling peg v0.5.7
[INFO] [stderr]    Compiling tokio-executor v0.1.7
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling socket2 v0.3.8
[INFO] [stderr]    Compiling hostname v0.1.5
[INFO] [stderr]    Compiling signal-hook v0.1.8
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling serde_yaml v0.8.8
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling tokio-timer v0.2.10
[INFO] [stderr]    Compiling tokio-current-thread v0.1.4
[INFO] [stderr]    Compiling resolv-conf v0.6.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling serde_urlencoded v0.5.4
[INFO] [stderr]    Compiling cookie v0.11.0
[INFO] [stderr]    Compiling tokio-io v0.1.11
[INFO] [stderr]    Compiling http v0.1.16
[INFO] [stderr]    Compiling gears v0.1.7
[INFO] [stderr]    Compiling gears-cli v0.1.12 (/opt/crater/workdir)
[INFO] [stderr]    Compiling v_escape_derive v0.5.3
[INFO] [stderr]    Compiling actix_derive v0.3.2
[INFO] [stderr]    Compiling enum-as-inner v0.2.1
[INFO] [stderr]    Compiling derive_more v0.14.0
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]    Compiling actix_derive v0.4.0
[INFO] [stderr]    Compiling error-chain v0.12.0
[INFO] [stderr]    Compiling env_logger v0.6.1
[INFO] [stderr]    Compiling queryst v2.0.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling v_escape v0.7.2
[INFO] [stderr]    Compiling rustyline v4.0.0
[INFO] [stderr]    Compiling failure v0.1.5
[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-4.0.0/src/lib.rs:627:43
[INFO] [stderr]     |
[INFO] [stderr] 627 |             editor.add_history_entry(line.as_ref());
[INFO] [stderr]     |                                           ^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling v_htmlescape v0.4.3
[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" "7a0d55c5c9873001dfc4870a6570bb45391d15f484048b8441774d91de872a27"`
[INFO] running `"docker" "rm" "-f" "7a0d55c5c9873001dfc4870a6570bb45391d15f484048b8441774d91de872a27"`
[INFO] [stdout] 7a0d55c5c9873001dfc4870a6570bb45391d15f484048b8441774d91de872a27