[INFO] updating cached repository kjiakai/guessing-game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kjiakai/guessing-game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kjiakai/guessing-game" "work/ex/beta-1.38-1/sources/1.37.0/gh/kjiakai/guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/kjiakai/guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kjiakai/guessing-game" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kjiakai/guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kjiakai/guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 838314fb5cb79fc15338eb45360a8854336aaaa2
[INFO] sha for GitHub repo kjiakai/guessing-game: 838314fb5cb79fc15338eb45360a8854336aaaa2
[INFO] validating manifest of kjiakai/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 kjiakai/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 kjiakai/guessing-game
[INFO] finished frobbing kjiakai/guessing-game
[INFO] frobbed toml for kjiakai/guessing-game written to work/ex/beta-1.38-1/sources/1.37.0/gh/kjiakai/guessing-game/Cargo.toml
[INFO] started frobbing kjiakai/guessing-game
[INFO] finished frobbing kjiakai/guessing-game
[INFO] frobbed toml for kjiakai/guessing-game written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kjiakai/guessing-game/Cargo.toml
[INFO] crate kjiakai/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 kjiakai/guessing-game 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-5/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/kjiakai/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] cacdea993034bdb3b5755fde83abb6854fcc09ffb79a31b259bcb59f2b13cf14
[INFO] running `"docker" "start" "-a" "cacdea993034bdb3b5755fde83abb6854fcc09ffb79a31b259bcb59f2b13cf14"`
[INFO] [stderr]    Compiling rand v0.4.6
[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 3.02s
[INFO] running `"docker" "inspect" "cacdea993034bdb3b5755fde83abb6854fcc09ffb79a31b259bcb59f2b13cf14"`
[INFO] running `"docker" "rm" "-f" "cacdea993034bdb3b5755fde83abb6854fcc09ffb79a31b259bcb59f2b13cf14"`
[INFO] [stdout] cacdea993034bdb3b5755fde83abb6854fcc09ffb79a31b259bcb59f2b13cf14
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/kjiakai/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] acb8b06c62beaac3ee602e357904237dae2464a2ee870534fb7a60f0bbdfa8eb
[INFO] running `"docker" "start" "-a" "acb8b06c62beaac3ee602e357904237dae2464a2ee870534fb7a60f0bbdfa8eb"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "acb8b06c62beaac3ee602e357904237dae2464a2ee870534fb7a60f0bbdfa8eb"`
[INFO] running `"docker" "rm" "-f" "acb8b06c62beaac3ee602e357904237dae2464a2ee870534fb7a60f0bbdfa8eb"`
[INFO] [stdout] acb8b06c62beaac3ee602e357904237dae2464a2ee870534fb7a60f0bbdfa8eb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/kjiakai/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 28ff54d3fc9ca658f0f6bcfada1f5f26533ea4f3eed4a5cd7f65e1b6078ea3cf
[INFO] running `"docker" "start" "-a" "28ff54d3fc9ca658f0f6bcfada1f5f26533ea4f3eed4a5cd7f65e1b6078ea3cf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-195222365e60b30a
[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" "28ff54d3fc9ca658f0f6bcfada1f5f26533ea4f3eed4a5cd7f65e1b6078ea3cf"`
[INFO] running `"docker" "rm" "-f" "28ff54d3fc9ca658f0f6bcfada1f5f26533ea4f3eed4a5cd7f65e1b6078ea3cf"`
[INFO] [stdout] 28ff54d3fc9ca658f0f6bcfada1f5f26533ea4f3eed4a5cd7f65e1b6078ea3cf