[INFO] updating cached repository Viniter/game_of_life
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Viniter/game_of_life
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Viniter/game_of_life" "work/ex/beta-1.38-1/sources/1.37.0/gh/Viniter/game_of_life"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Viniter/game_of_life'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Viniter/game_of_life" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Viniter/game_of_life"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Viniter/game_of_life'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a3c854a54f70099affadb427e5c4f0322ad997db
[INFO] sha for GitHub repo Viniter/game_of_life: a3c854a54f70099affadb427e5c4f0322ad997db
[INFO] validating manifest of Viniter/game_of_life 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 Viniter/game_of_life 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 Viniter/game_of_life
[INFO] finished frobbing Viniter/game_of_life
[INFO] frobbed toml for Viniter/game_of_life written to work/ex/beta-1.38-1/sources/1.37.0/gh/Viniter/game_of_life/Cargo.toml
[INFO] started frobbing Viniter/game_of_life
[INFO] finished frobbing Viniter/game_of_life
[INFO] frobbed toml for Viniter/game_of_life written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Viniter/game_of_life/Cargo.toml
[INFO] crate Viniter/game_of_life 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 Viniter/game_of_life 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/Viniter/game_of_life:/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] 8fd28479518462020c8e2e148553fcbaa832a4684a912452032ff8cf6d6fd566
[INFO] running `"docker" "start" "-a" "8fd28479518462020c8e2e148553fcbaa832a4684a912452032ff8cf6d6fd566"`
[INFO] [stderr]    Compiling game_of_life v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `set_alive`
[INFO] [stderr]   --> src/cell.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn set_alive(&mut self, val: bool) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "8fd28479518462020c8e2e148553fcbaa832a4684a912452032ff8cf6d6fd566"`
[INFO] running `"docker" "rm" "-f" "8fd28479518462020c8e2e148553fcbaa832a4684a912452032ff8cf6d6fd566"`
[INFO] [stdout] 8fd28479518462020c8e2e148553fcbaa832a4684a912452032ff8cf6d6fd566
[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/Viniter/game_of_life:/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] 97cd5eb0aa65182da5360d3f1cffe68f07c19bd1764799a47906f967cc85b91e
[INFO] running `"docker" "start" "-a" "97cd5eb0aa65182da5360d3f1cffe68f07c19bd1764799a47906f967cc85b91e"`
[INFO] [stderr]    Compiling game_of_life v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `set_alive`
[INFO] [stderr]   --> src/cell.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn set_alive(&mut self, val: bool) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "97cd5eb0aa65182da5360d3f1cffe68f07c19bd1764799a47906f967cc85b91e"`
[INFO] running `"docker" "rm" "-f" "97cd5eb0aa65182da5360d3f1cffe68f07c19bd1764799a47906f967cc85b91e"`
[INFO] [stdout] 97cd5eb0aa65182da5360d3f1cffe68f07c19bd1764799a47906f967cc85b91e
[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/Viniter/game_of_life:/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] d213a6babeb404ff995882bf474f83883aae41ab4872f02483b1007b6141cbc3
[INFO] running `"docker" "start" "-a" "d213a6babeb404ff995882bf474f83883aae41ab4872f02483b1007b6141cbc3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/game_of_life-11bf089979cf7aa8
[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" "d213a6babeb404ff995882bf474f83883aae41ab4872f02483b1007b6141cbc3"`
[INFO] running `"docker" "rm" "-f" "d213a6babeb404ff995882bf474f83883aae41ab4872f02483b1007b6141cbc3"`
[INFO] [stdout] d213a6babeb404ff995882bf474f83883aae41ab4872f02483b1007b6141cbc3