[INFO] updating cached repository https://github.com/nlflint/BubbleSort
[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] ce08fb5b86f01910ee0f2cab2450dcbe89ecfc7b
[INFO] testing nlflint/BubbleSort against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnlflint%2FBubbleSort" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nlflint/BubbleSort 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/nlflint/BubbleSort
[INFO] finished tweaking git repo https://github.com/nlflint/BubbleSort
[INFO] tweaked toml for git repo https://github.com/nlflint/BubbleSort written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/nlflint/BubbleSort 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] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] b410054250554bea710069008a629fe206d7000dc7a7d64dc11172718407c854
[INFO] running `"docker" "start" "-a" "b410054250554bea710069008a629fe206d7000dc7a7d64dc11172718407c854"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling BubbleSort v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0601]: `main` function not found in crate `BubbleSort`
[INFO] [stderr]   --> src/main.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | / use std::cmp::Ordering;
[INFO] [stderr] 2  | |
[INFO] [stderr] 3  | | fn bubble_sort<T: PartialOrd>(mut collection :Vec<T>) -> Vec<T> {
[INFO] [stderr] 4  | |     let mut swap_happened = false;
[INFO] [stderr] ...  |
[INFO] [stderr] 79 | |         "pineapple".to_string()]);
[INFO] [stderr] 80 | | }
[INFO] [stderr]    | |_^ consider adding a `main` function to `src/main.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0601`.
[INFO] [stderr] error: could not compile `BubbleSort`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b410054250554bea710069008a629fe206d7000dc7a7d64dc11172718407c854"`
[INFO] running `"docker" "rm" "-f" "b410054250554bea710069008a629fe206d7000dc7a7d64dc11172718407c854"`
[INFO] [stdout] b410054250554bea710069008a629fe206d7000dc7a7d64dc11172718407c854