[INFO] updating cached repository legendiguess/simple_snake
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/legendiguess/simple_snake
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/legendiguess/simple_snake" "work/ex/beta-1.38-1/sources/1.37.0/gh/legendiguess/simple_snake"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/legendiguess/simple_snake'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/legendiguess/simple_snake" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/legendiguess/simple_snake"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/legendiguess/simple_snake'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 51afc2f8cae26d2ac6dc38239d62add04ec78523
[INFO] sha for GitHub repo legendiguess/simple_snake: 51afc2f8cae26d2ac6dc38239d62add04ec78523
[INFO] validating manifest of legendiguess/simple_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 legendiguess/simple_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 legendiguess/simple_snake
[INFO] finished frobbing legendiguess/simple_snake
[INFO] frobbed toml for legendiguess/simple_snake written to work/ex/beta-1.38-1/sources/1.37.0/gh/legendiguess/simple_snake/Cargo.toml
[INFO] started frobbing legendiguess/simple_snake
[INFO] finished frobbing legendiguess/simple_snake
[INFO] frobbed toml for legendiguess/simple_snake written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/legendiguess/simple_snake/Cargo.toml
[INFO] crate legendiguess/simple_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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/legendiguess/simple_snake/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 legendiguess/simple_snake 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/legendiguess/simple_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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 881e865f71cefc460e02f9843b2e4c41f29319081f65d060626cff95cbb39543
[INFO] running `"docker" "start" "-a" "881e865f71cefc460e02f9843b2e4c41f29319081f65d060626cff95cbb39543"`
[INFO] [stderr]    Compiling minifb v0.12.0
[INFO] [stderr]    Compiling simple_snake v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `name`
[INFO] [stderr]   --> src/main.rs:13:2
[INFO] [stderr]    |
[INFO] [stderr] 13 |     name: String, 
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.28s
[INFO] running `"docker" "inspect" "881e865f71cefc460e02f9843b2e4c41f29319081f65d060626cff95cbb39543"`
[INFO] running `"docker" "rm" "-f" "881e865f71cefc460e02f9843b2e4c41f29319081f65d060626cff95cbb39543"`
[INFO] [stdout] 881e865f71cefc460e02f9843b2e4c41f29319081f65d060626cff95cbb39543
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/legendiguess/simple_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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] d392e889fd3c2e51fc9de9de22bcd03b9d94ebcb4b7983ce24c65518993b0b6f
[INFO] running `"docker" "start" "-a" "d392e889fd3c2e51fc9de9de22bcd03b9d94ebcb4b7983ce24c65518993b0b6f"`
[INFO] [stderr]    Compiling simple_snake v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `name`
[INFO] [stderr]   --> src/main.rs:13:2
[INFO] [stderr]    |
[INFO] [stderr] 13 |     name: String, 
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "d392e889fd3c2e51fc9de9de22bcd03b9d94ebcb4b7983ce24c65518993b0b6f"`
[INFO] running `"docker" "rm" "-f" "d392e889fd3c2e51fc9de9de22bcd03b9d94ebcb4b7983ce24c65518993b0b6f"`
[INFO] [stdout] d392e889fd3c2e51fc9de9de22bcd03b9d94ebcb4b7983ce24c65518993b0b6f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/legendiguess/simple_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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] de58c539cecaf2b98c930b4b38554431843777186c99bf60061c8d216b93b38b
[INFO] running `"docker" "start" "-a" "de58c539cecaf2b98c930b4b38554431843777186c99bf60061c8d216b93b38b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/simple_snake-006642f71a0d0fb0
[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" "de58c539cecaf2b98c930b4b38554431843777186c99bf60061c8d216b93b38b"`
[INFO] running `"docker" "rm" "-f" "de58c539cecaf2b98c930b4b38554431843777186c99bf60061c8d216b93b38b"`
[INFO] [stdout] de58c539cecaf2b98c930b4b38554431843777186c99bf60061c8d216b93b38b