[INFO] updating cached repository RyperHUN/snake
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/RyperHUN/snake
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/RyperHUN/snake" "work/ex/beta-1.38-1/sources/1.37.0/gh/RyperHUN/snake"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/RyperHUN/snake'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/RyperHUN/snake" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/RyperHUN/snake"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/RyperHUN/snake'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d64a54ee40be1e5a237907c2e1911e1e229a5de9
[INFO] sha for GitHub repo RyperHUN/snake: d64a54ee40be1e5a237907c2e1911e1e229a5de9
[INFO] validating manifest of RyperHUN/snake 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 RyperHUN/snake 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 RyperHUN/snake
[INFO] finished frobbing RyperHUN/snake
[INFO] frobbed toml for RyperHUN/snake written to work/ex/beta-1.38-1/sources/1.37.0/gh/RyperHUN/snake/Cargo.toml
[INFO] started frobbing RyperHUN/snake
[INFO] finished frobbing RyperHUN/snake
[INFO] frobbed toml for RyperHUN/snake written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/RyperHUN/snake/Cargo.toml
[INFO] crate RyperHUN/snake 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 RyperHUN/snake 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-7/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/RyperHUN/snake:/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] 09e6c8449cf2c2a4bc76d577c13e07af0ebaaaace8b686dbf50ceecea16d487a
[INFO] running `"docker" "start" "-a" "09e6c8449cf2c2a4bc76d577c13e07af0ebaaaace8b686dbf50ceecea16d487a"`
[INFO] [stderr]    Compiling c_vec v1.3.0
[INFO] [stderr]    Compiling rgb v0.7.0
[INFO] [stderr]    Compiling lodepng v1.1.3
[INFO] [stderr]    Compiling sdl2-sys v0.30.0
[INFO] [stderr]    Compiling cgmath v0.15.0
[INFO] [stderr]    Compiling sdl2 v0.30.0
[INFO] [stderr]    Compiling snake v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:142:8
[INFO] [stderr]     |
[INFO] [stderr] 142 |             for i in 1..length {
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.98s
[INFO] running `"docker" "inspect" "09e6c8449cf2c2a4bc76d577c13e07af0ebaaaace8b686dbf50ceecea16d487a"`
[INFO] running `"docker" "rm" "-f" "09e6c8449cf2c2a4bc76d577c13e07af0ebaaaace8b686dbf50ceecea16d487a"`
[INFO] [stdout] 09e6c8449cf2c2a4bc76d577c13e07af0ebaaaace8b686dbf50ceecea16d487a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/RyperHUN/snake:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 588a03df8968ef5e14239b25d35a0f9210eb4cb6bfa76fa2c96070e7d2caaaf4
[INFO] running `"docker" "start" "-a" "588a03df8968ef5e14239b25d35a0f9210eb4cb6bfa76fa2c96070e7d2caaaf4"`
[INFO] [stderr]    Compiling snake v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:142:8
[INFO] [stderr]     |
[INFO] [stderr] 142 |             for i in 1..length {
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `"docker" "inspect" "588a03df8968ef5e14239b25d35a0f9210eb4cb6bfa76fa2c96070e7d2caaaf4"`
[INFO] running `"docker" "rm" "-f" "588a03df8968ef5e14239b25d35a0f9210eb4cb6bfa76fa2c96070e7d2caaaf4"`
[INFO] [stdout] 588a03df8968ef5e14239b25d35a0f9210eb4cb6bfa76fa2c96070e7d2caaaf4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/RyperHUN/snake:/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" "test" "--frozen"`
[INFO] [stdout] 353f6c9ba0c45f03b84fe802e6746e496bba2693c4b6f5376e2276e7d2a6329e
[INFO] running `"docker" "start" "-a" "353f6c9ba0c45f03b84fe802e6746e496bba2693c4b6f5376e2276e7d2a6329e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[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] [stderr]      Running /opt/crater/target/debug/deps/snake-4873b2ef56321651
[INFO] running `"docker" "inspect" "353f6c9ba0c45f03b84fe802e6746e496bba2693c4b6f5376e2276e7d2a6329e"`
[INFO] running `"docker" "rm" "-f" "353f6c9ba0c45f03b84fe802e6746e496bba2693c4b6f5376e2276e7d2a6329e"`
[INFO] [stdout] 353f6c9ba0c45f03b84fe802e6746e496bba2693c4b6f5376e2276e7d2a6329e