[INFO] updating cached repository https://github.com/brundonsmith/data_structures_and_algorithms
[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] b854c5e099c8880c8d0543ed4782c8f12c426fda
[INFO] testing brundonsmith/data_structures_and_algorithms against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrundonsmith%2Fdata_structures_and_algorithms" "/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/brundonsmith/data_structures_and_algorithms on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/brundonsmith/data_structures_and_algorithms
[INFO] finished tweaking git repo https://github.com/brundonsmith/data_structures_and_algorithms
[INFO] tweaked toml for git repo https://github.com/brundonsmith/data_structures_and_algorithms written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/brundonsmith/data_structures_and_algorithms already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "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" "+1.44.0" "build" "--frozen"`
[INFO] [stdout] f261624afaa11269ec182f5791b802dcb55759353ea51c826ca7dd52aff8c861
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "f261624afaa11269ec182f5791b802dcb55759353ea51c826ca7dd52aff8c861"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling data_structures_and_algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/algorithms/sort.rs:2:22
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub type SortFn<T> = Fn(&mut [T]) -> ();
[INFO] [stderr]   |                      ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut [T]) -> ()`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0601]: `main` function not found in crate `data_structures_and_algorithms`
[INFO] [stderr]  --> src/main.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | / mod algorithms;
[INFO] [stderr] 3 | | mod data_structures;
[INFO] [stderr]   | |____________________^ consider adding a `main` function to `src/main.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0601`.
[INFO] [stderr] error: could not compile `data_structures_and_algorithms`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f261624afaa11269ec182f5791b802dcb55759353ea51c826ca7dd52aff8c861"`
[INFO] running `"docker" "rm" "-f" "f261624afaa11269ec182f5791b802dcb55759353ea51c826ca7dd52aff8c861"`
[INFO] [stdout] f261624afaa11269ec182f5791b802dcb55759353ea51c826ca7dd52aff8c861