[INFO] updating cached repository amukiza/game-of-life-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/amukiza/game-of-life-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/amukiza/game-of-life-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/amukiza/game-of-life-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/amukiza/game-of-life-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/amukiza/game-of-life-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/amukiza/game-of-life-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/amukiza/game-of-life-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d82f1071972b299531a57c8cfa4c575deaf504f7
[INFO] sha for GitHub repo amukiza/game-of-life-rs: d82f1071972b299531a57c8cfa4c575deaf504f7
[INFO] validating manifest of amukiza/game-of-life-rs 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 amukiza/game-of-life-rs 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 amukiza/game-of-life-rs
[INFO] finished frobbing amukiza/game-of-life-rs
[INFO] frobbed toml for amukiza/game-of-life-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/amukiza/game-of-life-rs/Cargo.toml
[INFO] started frobbing amukiza/game-of-life-rs
[INFO] finished frobbing amukiza/game-of-life-rs
[INFO] frobbed toml for amukiza/game-of-life-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/amukiza/game-of-life-rs/Cargo.toml
[INFO] crate amukiza/game-of-life-rs 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 amukiza/game-of-life-rs 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/amukiza/game-of-life-rs:/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] 2d5b2d66ad35fd30d02be40905ce1b441909c48d3063108c8f5385d7813c00ce
[INFO] running `"docker" "start" "-a" "2d5b2d66ad35fd30d02be40905ce1b441909c48d3063108c8f5385d7813c00ce"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling game-of-life v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0277]: a collection of type `std::vec::Vec<game::Cell>` cannot be built from an iterator over elements of type `&game::Cell`
[INFO] [stderr]   --> src/lib.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |                .collect();
[INFO] [stderr]    |                 ^^^^^^^ a collection of type `std::vec::Vec<game::Cell>` cannot be built from `std::iter::Iterator<Item=&game::Cell>`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::iter::FromIterator<&game::Cell>` is not implemented for `std::vec::Vec<game::Cell>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `game-of-life`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2d5b2d66ad35fd30d02be40905ce1b441909c48d3063108c8f5385d7813c00ce"`
[INFO] running `"docker" "rm" "-f" "2d5b2d66ad35fd30d02be40905ce1b441909c48d3063108c8f5385d7813c00ce"`
[INFO] [stdout] 2d5b2d66ad35fd30d02be40905ce1b441909c48d3063108c8f5385d7813c00ce