[INFO] updating cached repository WRuman/conway
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/WRuman/conway
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/WRuman/conway" "work/ex/beta-1.38-1/sources/1.37.0/gh/WRuman/conway"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/WRuman/conway'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/WRuman/conway" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/WRuman/conway"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/WRuman/conway'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1330fad0da3cdcea70178efbcbefd9ef9e497753
[INFO] sha for GitHub repo WRuman/conway: 1330fad0da3cdcea70178efbcbefd9ef9e497753
[INFO] validating manifest of WRuman/conway 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 WRuman/conway 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 WRuman/conway
[INFO] finished frobbing WRuman/conway
[INFO] frobbed toml for WRuman/conway written to work/ex/beta-1.38-1/sources/1.37.0/gh/WRuman/conway/Cargo.toml
[INFO] started frobbing WRuman/conway
[INFO] finished frobbing WRuman/conway
[INFO] frobbed toml for WRuman/conway written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/WRuman/conway/Cargo.toml
[INFO] crate WRuman/conway 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 WRuman/conway 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/WRuman/conway:/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] 9078c9f1f872dc7bf9523460d8f3a524710f1f25a485d0c7ef1355041661044c
[INFO] running `"docker" "start" "-a" "9078c9f1f872dc7bf9523460d8f3a524710f1f25a485d0c7ef1355041661044c"`
[INFO] [stderr]    Compiling conway v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `add_acorn`
[INFO] [stderr]   --> src/game.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn add_acorn(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `"docker" "inspect" "9078c9f1f872dc7bf9523460d8f3a524710f1f25a485d0c7ef1355041661044c"`
[INFO] running `"docker" "rm" "-f" "9078c9f1f872dc7bf9523460d8f3a524710f1f25a485d0c7ef1355041661044c"`
[INFO] [stdout] 9078c9f1f872dc7bf9523460d8f3a524710f1f25a485d0c7ef1355041661044c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/WRuman/conway:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8c1a370a8be90d30b7bfd338d6b99704668ed00544eba7302f0602c8301463f5
[INFO] running `"docker" "start" "-a" "8c1a370a8be90d30b7bfd338d6b99704668ed00544eba7302f0602c8301463f5"`
[INFO] [stderr]    Compiling conway v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `add_acorn`
[INFO] [stderr]   --> src/game.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn add_acorn(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "8c1a370a8be90d30b7bfd338d6b99704668ed00544eba7302f0602c8301463f5"`
[INFO] running `"docker" "rm" "-f" "8c1a370a8be90d30b7bfd338d6b99704668ed00544eba7302f0602c8301463f5"`
[INFO] [stdout] 8c1a370a8be90d30b7bfd338d6b99704668ed00544eba7302f0602c8301463f5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/WRuman/conway:/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" "test" "--frozen"`
[INFO] [stdout] f290e4873731c23666b538a1cac351819f11d53ac60ebe0c7015024494b020bf
[INFO] running `"docker" "start" "-a" "f290e4873731c23666b538a1cac351819f11d53ac60ebe0c7015024494b020bf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/conway-32e27963572543bd
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f290e4873731c23666b538a1cac351819f11d53ac60ebe0c7015024494b020bf"`
[INFO] running `"docker" "rm" "-f" "f290e4873731c23666b538a1cac351819f11d53ac60ebe0c7015024494b020bf"`
[INFO] [stdout] f290e4873731c23666b538a1cac351819f11d53ac60ebe0c7015024494b020bf