[INFO] updating cached repository antonysastre/guessing_game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/antonysastre/guessing_game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/antonysastre/guessing_game" "work/ex/beta-1.38-1/sources/1.37.0/gh/antonysastre/guessing_game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/antonysastre/guessing_game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/antonysastre/guessing_game" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/antonysastre/guessing_game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/antonysastre/guessing_game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0b94f986d863e9f805f609ac4e50dff0a413ea1b
[INFO] sha for GitHub repo antonysastre/guessing_game: 0b94f986d863e9f805f609ac4e50dff0a413ea1b
[INFO] validating manifest of antonysastre/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 antonysastre/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 antonysastre/guessing_game
[INFO] finished frobbing antonysastre/guessing_game
[INFO] frobbed toml for antonysastre/guessing_game written to work/ex/beta-1.38-1/sources/1.37.0/gh/antonysastre/guessing_game/Cargo.toml
[INFO] started frobbing antonysastre/guessing_game
[INFO] finished frobbing antonysastre/guessing_game
[INFO] frobbed toml for antonysastre/guessing_game written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/antonysastre/guessing_game/Cargo.toml
[INFO] crate antonysastre/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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/antonysastre/guessing_game/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[INFO] the lockfile is outdated, regenerating it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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing antonysastre/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-2/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/antonysastre/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] 1b3aadf3d9da71f789ae6f16fab215d6f1efa98cd7bde0b8ddfc14c0805a5e6e
[INFO] running `"docker" "start" "-a" "1b3aadf3d9da71f789ae6f16fab215d6f1efa98cd7bde0b8ddfc14c0805a5e6e"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: expected one of `.`, `;`, `?`, or an operator, found `println`
[INFO] [stderr]   --> src/main.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     }
[INFO] [stderr]    |      - expected one of `.`, `;`, `?`, or an operator here
[INFO] [stderr] 27 | 
[INFO] [stderr] 28 |     println!("The secret number was: {}.", secret_number);
[INFO] [stderr]    |     ^^^^^^^ unexpected token
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::Ordering`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::cmp::Ordering;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `guessing_game`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1b3aadf3d9da71f789ae6f16fab215d6f1efa98cd7bde0b8ddfc14c0805a5e6e"`
[INFO] running `"docker" "rm" "-f" "1b3aadf3d9da71f789ae6f16fab215d6f1efa98cd7bde0b8ddfc14c0805a5e6e"`
[INFO] [stdout] 1b3aadf3d9da71f789ae6f16fab215d6f1efa98cd7bde0b8ddfc14c0805a5e6e