[INFO] updating cached repository Craig-Macomber/Life-Struggle
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Craig-Macomber/Life-Struggle
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Craig-Macomber/Life-Struggle" "work/ex/beta-1.38-1/sources/1.37.0/gh/Craig-Macomber/Life-Struggle"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Craig-Macomber/Life-Struggle'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Craig-Macomber/Life-Struggle" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Craig-Macomber/Life-Struggle"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Craig-Macomber/Life-Struggle'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 051d4626dafb950554469862d922425ceb2d3ff3
[INFO] sha for GitHub repo Craig-Macomber/Life-Struggle: 051d4626dafb950554469862d922425ceb2d3ff3
[INFO] validating manifest of Craig-Macomber/Life-Struggle 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 Craig-Macomber/Life-Struggle 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 Craig-Macomber/Life-Struggle
[INFO] finished frobbing Craig-Macomber/Life-Struggle
[INFO] frobbed toml for Craig-Macomber/Life-Struggle written to work/ex/beta-1.38-1/sources/1.37.0/gh/Craig-Macomber/Life-Struggle/Cargo.toml
[INFO] started frobbing Craig-Macomber/Life-Struggle
[INFO] finished frobbing Craig-Macomber/Life-Struggle
[INFO] frobbed toml for Craig-Macomber/Life-Struggle written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Craig-Macomber/Life-Struggle/Cargo.toml
[INFO] crate Craig-Macomber/Life-Struggle 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 Craig-Macomber/Life-Struggle 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-3/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/Craig-Macomber/Life-Struggle:/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] c2f9e418cd6ddb6f74035e9292ea90eb4c99673fae17534d68ac93e21b0d5374
[INFO] running `"docker" "start" "-a" "c2f9e418cd6ddb6f74035e9292ea90eb4c99673fae17534d68ac93e21b0d5374"`
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling image v0.19.0
[INFO] [stderr]    Compiling life_struggle v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game.rs:18:46
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn struggle(generations: usize, tile_a: &LifeTileSrc, tile_b: &LifeTileSrc) -> (isize, isize) {
[INFO] [stderr]    |                                              ^^^^^^^^^^^ help: use `dyn`: `dyn LifeTileSrc`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game.rs:18:68
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn struggle(generations: usize, tile_a: &LifeTileSrc, tile_b: &LifeTileSrc) -> (isize, isize) {
[INFO] [stderr]    |                                                                    ^^^^^^^^^^^ help: use `dyn`: `dyn LifeTileSrc`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game.rs:33:52
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn struggle_board(generations: usize, tile_a: &LifeTileSrc, tile_b: &LifeTileSrc) -> Option<B> {
[INFO] [stderr]    |                                                    ^^^^^^^^^^^ help: use `dyn`: `dyn LifeTileSrc`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/game.rs:33:74
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn struggle_board(generations: usize, tile_a: &LifeTileSrc, tile_b: &LifeTileSrc) -> Option<B> {
[INFO] [stderr]    |                                                                          ^^^^^^^^^^^ help: use `dyn`: `dyn LifeTileSrc`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tile.rs:19:25
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn copy_from(t_in: &LifeTileSrc) -> Self {
[INFO] [stderr]    |                         ^^^^^^^^^^^ help: use `dyn`: `dyn LifeTileSrc`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `life_struggle`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c2f9e418cd6ddb6f74035e9292ea90eb4c99673fae17534d68ac93e21b0d5374"`
[INFO] running `"docker" "rm" "-f" "c2f9e418cd6ddb6f74035e9292ea90eb4c99673fae17534d68ac93e21b0d5374"`
[INFO] [stdout] c2f9e418cd6ddb6f74035e9292ea90eb4c99673fae17534d68ac93e21b0d5374