[INFO] updating cached repository tlafebre/guessing_game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tlafebre/guessing_game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tlafebre/guessing_game" "work/ex/beta-1.38-1/sources/1.37.0/gh/tlafebre/guessing_game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/tlafebre/guessing_game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tlafebre/guessing_game" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tlafebre/guessing_game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tlafebre/guessing_game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0cacbf65cac55b996eaeda73e4d3c910764536ff
[INFO] sha for GitHub repo tlafebre/guessing_game: 0cacbf65cac55b996eaeda73e4d3c910764536ff
[INFO] validating manifest of tlafebre/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 tlafebre/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 tlafebre/guessing_game
[INFO] finished frobbing tlafebre/guessing_game
[INFO] frobbed toml for tlafebre/guessing_game written to work/ex/beta-1.38-1/sources/1.37.0/gh/tlafebre/guessing_game/Cargo.toml
[INFO] started frobbing tlafebre/guessing_game
[INFO] finished frobbing tlafebre/guessing_game
[INFO] frobbed toml for tlafebre/guessing_game written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tlafebre/guessing_game/Cargo.toml
[INFO] crate tlafebre/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 tlafebre/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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tlafebre/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] 73e964bbd24b3b341e3887edfd3589c0bb0aae07d6ae7020203e8bc40bc9ca54
[INFO] running `"docker" "start" "-a" "73e964bbd24b3b341e3887edfd3589c0bb0aae07d6ae7020203e8bc40bc9ca54"`
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `"docker" "inspect" "73e964bbd24b3b341e3887edfd3589c0bb0aae07d6ae7020203e8bc40bc9ca54"`
[INFO] running `"docker" "rm" "-f" "73e964bbd24b3b341e3887edfd3589c0bb0aae07d6ae7020203e8bc40bc9ca54"`
[INFO] [stdout] 73e964bbd24b3b341e3887edfd3589c0bb0aae07d6ae7020203e8bc40bc9ca54
[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/tlafebre/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] 308d6ed4504bae3efd1e91e292f1945e677fe69cae08d9dea234befe108290d5
[INFO] running `"docker" "start" "-a" "308d6ed4504bae3efd1e91e292f1945e677fe69cae08d9dea234befe108290d5"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "308d6ed4504bae3efd1e91e292f1945e677fe69cae08d9dea234befe108290d5"`
[INFO] running `"docker" "rm" "-f" "308d6ed4504bae3efd1e91e292f1945e677fe69cae08d9dea234befe108290d5"`
[INFO] [stdout] 308d6ed4504bae3efd1e91e292f1945e677fe69cae08d9dea234befe108290d5
[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/tlafebre/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] 72a181250e029cde5ba665b47abde15f5e3f5483ed49a45aa3eae22bd1f706db
[INFO] running `"docker" "start" "-a" "72a181250e029cde5ba665b47abde15f5e3f5483ed49a45aa3eae22bd1f706db"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-e82f553ada5f6148
[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" "72a181250e029cde5ba665b47abde15f5e3f5483ed49a45aa3eae22bd1f706db"`
[INFO] running `"docker" "rm" "-f" "72a181250e029cde5ba665b47abde15f5e3f5483ed49a45aa3eae22bd1f706db"`
[INFO] [stdout] 72a181250e029cde5ba665b47abde15f5e3f5483ed49a45aa3eae22bd1f706db