[INFO] updating cached repository rtd62/guessing_game-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rtd62/guessing_game-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rtd62/guessing_game-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/rtd62/guessing_game-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/rtd62/guessing_game-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rtd62/guessing_game-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rtd62/guessing_game-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rtd62/guessing_game-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e3494342ec808f5e3cc7c635f4ee0a6b049bc337
[INFO] sha for GitHub repo rtd62/guessing_game-rust: e3494342ec808f5e3cc7c635f4ee0a6b049bc337
[INFO] validating manifest of rtd62/guessing_game-rust 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 rtd62/guessing_game-rust 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 rtd62/guessing_game-rust
[INFO] finished frobbing rtd62/guessing_game-rust
[INFO] frobbed toml for rtd62/guessing_game-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/rtd62/guessing_game-rust/Cargo.toml
[INFO] started frobbing rtd62/guessing_game-rust
[INFO] finished frobbing rtd62/guessing_game-rust
[INFO] frobbed toml for rtd62/guessing_game-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rtd62/guessing_game-rust/Cargo.toml
[INFO] crate rtd62/guessing_game-rust 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/rtd62/guessing_game-rust/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[INFO] the lockfile is outdated, regenerating it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 rtd62/guessing_game-rust 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/rtd62/guessing_game-rust:/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] d21ff31b267cf1aef300e7eba168ba1c8fd07c6db586fb1e4f386bbb97b7664e
[INFO] running `"docker" "start" "-a" "d21ff31b267cf1aef300e7eba168ba1c8fd07c6db586fb1e4f386bbb97b7664e"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "d21ff31b267cf1aef300e7eba168ba1c8fd07c6db586fb1e4f386bbb97b7664e"`
[INFO] running `"docker" "rm" "-f" "d21ff31b267cf1aef300e7eba168ba1c8fd07c6db586fb1e4f386bbb97b7664e"`
[INFO] [stdout] d21ff31b267cf1aef300e7eba168ba1c8fd07c6db586fb1e4f386bbb97b7664e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/rtd62/guessing_game-rust:/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] 96d79c3cb7e81c8b90c53f599cdde36645ee65d2c79470079c03ddef2a18fc2e
[INFO] running `"docker" "start" "-a" "96d79c3cb7e81c8b90c53f599cdde36645ee65d2c79470079c03ddef2a18fc2e"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "96d79c3cb7e81c8b90c53f599cdde36645ee65d2c79470079c03ddef2a18fc2e"`
[INFO] running `"docker" "rm" "-f" "96d79c3cb7e81c8b90c53f599cdde36645ee65d2c79470079c03ddef2a18fc2e"`
[INFO] [stdout] 96d79c3cb7e81c8b90c53f599cdde36645ee65d2c79470079c03ddef2a18fc2e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/rtd62/guessing_game-rust:/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] d048f536f512917f5419df9ea1a91f51516329f915a72ff301008e211c4e55a9
[INFO] running `"docker" "start" "-a" "d048f536f512917f5419df9ea1a91f51516329f915a72ff301008e211c4e55a9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-bb35a4df9ee8519d
[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" "d048f536f512917f5419df9ea1a91f51516329f915a72ff301008e211c4e55a9"`
[INFO] running `"docker" "rm" "-f" "d048f536f512917f5419df9ea1a91f51516329f915a72ff301008e211c4e55a9"`
[INFO] [stdout] d048f536f512917f5419df9ea1a91f51516329f915a72ff301008e211c4e55a9