[INFO] updating cached repository NivenT/Tic-Tac-Toe [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/NivenT/Tic-Tac-Toe [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/NivenT/Tic-Tac-Toe" "work/ex/beta-1.38-1/sources/1.37.0/gh/NivenT/Tic-Tac-Toe"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/NivenT/Tic-Tac-Toe'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/NivenT/Tic-Tac-Toe" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/NivenT/Tic-Tac-Toe"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/NivenT/Tic-Tac-Toe'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 2fc505c14dc072885bb0db33f288fac1f05905a3 [INFO] sha for GitHub repo NivenT/Tic-Tac-Toe: 2fc505c14dc072885bb0db33f288fac1f05905a3 [INFO] validating manifest of NivenT/Tic-Tac-Toe 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 NivenT/Tic-Tac-Toe 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 NivenT/Tic-Tac-Toe [INFO] finished frobbing NivenT/Tic-Tac-Toe [INFO] frobbed toml for NivenT/Tic-Tac-Toe written to work/ex/beta-1.38-1/sources/1.37.0/gh/NivenT/Tic-Tac-Toe/Cargo.toml [INFO] started frobbing NivenT/Tic-Tac-Toe [INFO] finished frobbing NivenT/Tic-Tac-Toe [INFO] frobbed toml for NivenT/Tic-Tac-Toe written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/NivenT/Tic-Tac-Toe/Cargo.toml [INFO] crate NivenT/Tic-Tac-Toe 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/NivenT/Tic-Tac-Toe/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needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml"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 NivenT/Tic-Tac-Toe 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/NivenT/Tic-Tac-Toe:/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] fc7e880808cec8c6dcd216da7f7d854c398af56160d05e93672dd6fbb80ebd12 [INFO] running `"docker" "start" "-a" "fc7e880808cec8c6dcd216da7f7d854c398af56160d05e93672dd6fbb80ebd12"` [INFO] [stderr] Compiling Tic-Tac-Toe v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `self::rand::Rng` [INFO] [stderr] --> src/main.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use self::rand::Rng; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `self::rand::Rng` [INFO] [stderr] --> src/agent.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use self::rand::Rng; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` head expression [INFO] [stderr] --> src/main.rs:11:12 [INFO] [stderr] | [INFO] [stderr] 11 | for _i in (0..num_episodes) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_parens)] on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep` [INFO] [stderr] --> src/main.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::thread::sleep_ms; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(deprecated)] on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep` [INFO] [stderr] --> src/main.rs:22:2 [INFO] [stderr] | [INFO] [stderr] 22 | sleep_ms(1000); [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0599]: no method named `choose` found for type `rand::prelude::ThreadRng` in the current scope [INFO] [stderr] --> src/main.rs:14:32 [INFO] [stderr] | [INFO] [stderr] 14 | let m = *rand::thread_rng().choose(&b.get_valid_moves()).unwrap(); [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0599]: no method named `choose` found for type `rand::prelude::ThreadRng` in the current scope [INFO] [stderr] --> src/agent.rs:65:23 [INFO] [stderr] | [INFO] [stderr] 65 | *rand::thread_rng().choose(&best_moves).unwrap() [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0599`. [INFO] [stderr] error: Could not compile `Tic-Tac-Toe`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "fc7e880808cec8c6dcd216da7f7d854c398af56160d05e93672dd6fbb80ebd12"` [INFO] running `"docker" "rm" "-f" "fc7e880808cec8c6dcd216da7f7d854c398af56160d05e93672dd6fbb80ebd12"` [INFO] [stdout] fc7e880808cec8c6dcd216da7f7d854c398af56160d05e93672dd6fbb80ebd12