[INFO] updating cached repository https://github.com/NivenT/Tic-Tac-Toe [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 2fc505c14dc072885bb0db33f288fac1f05905a3 [INFO] testing NivenT/Tic-Tac-Toe against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNivenT%2FTic-Tac-Toe" "/workspace/builds/worker-9/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/NivenT/Tic-Tac-Toe on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/NivenT/Tic-Tac-Toe [INFO] finished tweaking git repo https://github.com/NivenT/Tic-Tac-Toe [INFO] tweaked toml for git repo https://github.com/NivenT/Tic-Tac-Toe written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/NivenT/Tic-Tac-Toe already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] error: the lock file /workspace/builds/worker-9/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag. [INFO] the lockfile is outdated, regenerating it [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 929e51a6f30459448ae5f33d44732a8c5cc636543c890354e166a93bc913b338 [INFO] running `"docker" "start" "-a" "929e51a6f30459448ae5f33d44732a8c5cc636543c890354e166a93bc913b338"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling Tic-Tac-Toe v0.1.0 (/opt/rustwide/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` iterator 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 struct `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] | ^^^^^^ method not found in `rand::prelude::ThreadRng` [INFO] [stderr] [INFO] [stderr] error[E0599]: no method named `choose` found for struct `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] | ^^^^^^ method not found in `rand::prelude::ThreadRng` [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors; 5 warnings emitted [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" "929e51a6f30459448ae5f33d44732a8c5cc636543c890354e166a93bc913b338"` [INFO] running `"docker" "rm" "-f" "929e51a6f30459448ae5f33d44732a8c5cc636543c890354e166a93bc913b338"` [INFO] [stdout] 929e51a6f30459448ae5f33d44732a8c5cc636543c890354e166a93bc913b338