[INFO] updating cached repository https://github.com/TylerWasniowski/rust_to_do_list
[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] 462dd6445f837b81aa7fbdc6db951996812aaa7b
[INFO] testing TylerWasniowski/rust_to_do_list against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTylerWasniowski%2Frust_to_do_list" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TylerWasniowski/rust_to_do_list 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/TylerWasniowski/rust_to_do_list
[INFO] finished tweaking git repo https://github.com/TylerWasniowski/rust_to_do_list
[INFO] tweaked toml for git repo https://github.com/TylerWasniowski/rust_to_do_list written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/TylerWasniowski/rust_to_do_list 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]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stdout] 83705b82586bc5e421ceaf73a5e8a6ed9f2a656ee2ee5188d6e406b40cba2de2
[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" "83705b82586bc5e421ceaf73a5e8a6ed9f2a656ee2ee5188d6e406b40cba2de2"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.36
[INFO] [stderr]    Compiling regex-syntax v0.4.2
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling regex v0.2.6
[INFO] [stderr]    Compiling rust_to_do_list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0601]: `main` function not found in crate `rust_to_do_list`
[INFO] [stderr]    --> src/main.rs:1:1
[INFO] [stderr]     |
[INFO] [stderr] 1   | / extern crate regex;
[INFO] [stderr] 2   | |
[INFO] [stderr] 3   | | pub mod db;
[INFO] [stderr] 4   | | pub mod to_do_list;
[INFO] [stderr] ...   |
[INFO] [stderr] 185 | |     }
[INFO] [stderr] 186 | | }
[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 `rust_to_do_list`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "83705b82586bc5e421ceaf73a5e8a6ed9f2a656ee2ee5188d6e406b40cba2de2"`
[INFO] running `"docker" "rm" "-f" "83705b82586bc5e421ceaf73a5e8a6ed9f2a656ee2ee5188d6e406b40cba2de2"`
[INFO] [stdout] 83705b82586bc5e421ceaf73a5e8a6ed9f2a656ee2ee5188d6e406b40cba2de2