[INFO] updating cached repository m-yahya/rust_guessing_game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/m-yahya/rust_guessing_game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/m-yahya/rust_guessing_game" "work/ex/beta-1.38-1/sources/1.37.0/gh/m-yahya/rust_guessing_game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/m-yahya/rust_guessing_game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/m-yahya/rust_guessing_game" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/m-yahya/rust_guessing_game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/m-yahya/rust_guessing_game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6ac67947fdfb96161a7701494c80477f300cbbfa
[INFO] sha for GitHub repo m-yahya/rust_guessing_game: 6ac67947fdfb96161a7701494c80477f300cbbfa
[INFO] validating manifest of m-yahya/rust_guessing_game 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 m-yahya/rust_guessing_game 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 m-yahya/rust_guessing_game
[INFO] finished frobbing m-yahya/rust_guessing_game
[INFO] frobbed toml for m-yahya/rust_guessing_game written to work/ex/beta-1.38-1/sources/1.37.0/gh/m-yahya/rust_guessing_game/Cargo.toml
[INFO] started frobbing m-yahya/rust_guessing_game
[INFO] finished frobbing m-yahya/rust_guessing_game
[INFO] frobbed toml for m-yahya/rust_guessing_game written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/m-yahya/rust_guessing_game/Cargo.toml
[INFO] crate m-yahya/rust_guessing_game 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 m-yahya/rust_guessing_game 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/m-yahya/rust_guessing_game:/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] 87bcb5ed86b86b3f8234b9f7336346e64cc8a967def963e6c2b5cbac0e4a09d5
[INFO] running `"docker" "start" "-a" "87bcb5ed86b86b3f8234b9f7336346e64cc8a967def963e6c2b5cbac0e4a09d5"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `"docker" "inspect" "87bcb5ed86b86b3f8234b9f7336346e64cc8a967def963e6c2b5cbac0e4a09d5"`
[INFO] running `"docker" "rm" "-f" "87bcb5ed86b86b3f8234b9f7336346e64cc8a967def963e6c2b5cbac0e4a09d5"`
[INFO] [stdout] 87bcb5ed86b86b3f8234b9f7336346e64cc8a967def963e6c2b5cbac0e4a09d5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/m-yahya/rust_guessing_game:/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] 59e2d4c2dac8bb64f8899c3f64cbdc5a5b860a19206c668140870b1077a41109
[INFO] running `"docker" "start" "-a" "59e2d4c2dac8bb64f8899c3f64cbdc5a5b860a19206c668140870b1077a41109"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "59e2d4c2dac8bb64f8899c3f64cbdc5a5b860a19206c668140870b1077a41109"`
[INFO] running `"docker" "rm" "-f" "59e2d4c2dac8bb64f8899c3f64cbdc5a5b860a19206c668140870b1077a41109"`
[INFO] [stdout] 59e2d4c2dac8bb64f8899c3f64cbdc5a5b860a19206c668140870b1077a41109
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/m-yahya/rust_guessing_game:/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] 13c1e348ffeffaa326adb783d6b58ffc178a33b32135a561077fc7f9b8eb084a
[INFO] running `"docker" "start" "-a" "13c1e348ffeffaa326adb783d6b58ffc178a33b32135a561077fc7f9b8eb084a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-0b40dc66160f992c
[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" "13c1e348ffeffaa326adb783d6b58ffc178a33b32135a561077fc7f9b8eb084a"`
[INFO] running `"docker" "rm" "-f" "13c1e348ffeffaa326adb783d6b58ffc178a33b32135a561077fc7f9b8eb084a"`
[INFO] [stdout] 13c1e348ffeffaa326adb783d6b58ffc178a33b32135a561077fc7f9b8eb084a