[INFO] updating cached repository juanrgon/guessing_game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/juanrgon/guessing_game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/juanrgon/guessing_game" "work/ex/beta-1.38-1/sources/1.37.0/gh/juanrgon/guessing_game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/juanrgon/guessing_game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/juanrgon/guessing_game" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/juanrgon/guessing_game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/juanrgon/guessing_game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3bca425c6e61f069b61d6548613fd1518fac0bbe
[INFO] sha for GitHub repo juanrgon/guessing_game: 3bca425c6e61f069b61d6548613fd1518fac0bbe
[INFO] validating manifest of juanrgon/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 juanrgon/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 juanrgon/guessing_game
[INFO] finished frobbing juanrgon/guessing_game
[INFO] frobbed toml for juanrgon/guessing_game written to work/ex/beta-1.38-1/sources/1.37.0/gh/juanrgon/guessing_game/Cargo.toml
[INFO] started frobbing juanrgon/guessing_game
[INFO] finished frobbing juanrgon/guessing_game
[INFO] frobbed toml for juanrgon/guessing_game written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/juanrgon/guessing_game/Cargo.toml
[INFO] crate juanrgon/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 juanrgon/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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/juanrgon/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] 61ba25f323afdcbba870b4bdd7c825958b61f1fa7013aa0d9efa9373c735d87a
[INFO] running `"docker" "start" "-a" "61ba25f323afdcbba870b4bdd7c825958b61f1fa7013aa0d9efa9373c735d87a"`
[INFO] [stderr]    Compiling ansi_term v0.12.0
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling getrandom v0.1.6
[INFO] [stderr]    Compiling rand_core v0.5.0
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.84s
[INFO] running `"docker" "inspect" "61ba25f323afdcbba870b4bdd7c825958b61f1fa7013aa0d9efa9373c735d87a"`
[INFO] running `"docker" "rm" "-f" "61ba25f323afdcbba870b4bdd7c825958b61f1fa7013aa0d9efa9373c735d87a"`
[INFO] [stdout] 61ba25f323afdcbba870b4bdd7c825958b61f1fa7013aa0d9efa9373c735d87a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/juanrgon/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] 173aa54b143e2c1b3dbb2067ce6e2b7e5fda86c252605e569760ea866d670953
[INFO] running `"docker" "start" "-a" "173aa54b143e2c1b3dbb2067ce6e2b7e5fda86c252605e569760ea866d670953"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "173aa54b143e2c1b3dbb2067ce6e2b7e5fda86c252605e569760ea866d670953"`
[INFO] running `"docker" "rm" "-f" "173aa54b143e2c1b3dbb2067ce6e2b7e5fda86c252605e569760ea866d670953"`
[INFO] [stdout] 173aa54b143e2c1b3dbb2067ce6e2b7e5fda86c252605e569760ea866d670953
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/juanrgon/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] 92443da89d2aed1f182b87f2f793d269579d461288f2964f151b4767d6825072
[INFO] running `"docker" "start" "-a" "92443da89d2aed1f182b87f2f793d269579d461288f2964f151b4767d6825072"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-08d6f54dbc645dba
[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" "92443da89d2aed1f182b87f2f793d269579d461288f2964f151b4767d6825072"`
[INFO] running `"docker" "rm" "-f" "92443da89d2aed1f182b87f2f793d269579d461288f2964f151b4767d6825072"`
[INFO] [stdout] 92443da89d2aed1f182b87f2f793d269579d461288f2964f151b4767d6825072