[INFO] updating cached repository https://github.com/hsunami/roll
[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] 698b608eec013f4815fd72785d2eb538617dd1a0
[INFO] testing hsunami/roll against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsunami%2Froll" "/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/hsunami/roll 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/hsunami/roll
[INFO] finished tweaking git repo https://github.com/hsunami/roll
[INFO] tweaked toml for git repo https://github.com/hsunami/roll written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/hsunami/roll 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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8210cba29883e53a86f04eaa8b73003394c7497aea970c3e3a4ba374ffb5a904
[INFO] running `"docker" "start" "-a" "8210cba29883e53a86f04eaa8b73003394c7497aea970c3e3a4ba374ffb5a904"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling roll v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::char`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::char;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `roll`
[INFO] [stderr]   --> src/main.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |     use roll;
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0601]: `main` function not found in crate `roll`
[INFO] [stderr]   --> src/main.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | / use std::char;
[INFO] [stderr] 2  | |
[INFO] [stderr] 3  | | mod roll {
[INFO] [stderr] 4  | |     pub fn capitalize(word: &str) -> String {
[INFO] [stderr] ...  |
[INFO] [stderr] 58 | |     }
[INFO] [stderr] 59 | | }
[INFO] [stderr]    | |_^ consider adding a `main` function to `src/main.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0601`.
[INFO] [stderr] error: could not compile `roll`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8210cba29883e53a86f04eaa8b73003394c7497aea970c3e3a4ba374ffb5a904"`
[INFO] running `"docker" "rm" "-f" "8210cba29883e53a86f04eaa8b73003394c7497aea970c3e3a4ba374ffb5a904"`
[INFO] [stdout] 8210cba29883e53a86f04eaa8b73003394c7497aea970c3e3a4ba374ffb5a904