[INFO] updating cached repository https://github.com/danreeves/rust-tests
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] 14017c607dbca26f2ae9f27500d46a91aaed3402
[INFO] testing danreeves/rust-tests against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanreeves%2Frust-tests" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/danreeves/rust-tests on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/danreeves/rust-tests
[INFO] finished tweaking git repo https://github.com/danreeves/rust-tests
[INFO] tweaked toml for git repo https://github.com/danreeves/rust-tests written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/danreeves/rust-tests already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 7b7805235694c0e288b0534a365c265f01fe82c4ced06c5077dee72be64135dd
[INFO] running `"docker" "start" "-a" "7b7805235694c0e288b0534a365c265f01fe82c4ced06c5077dee72be64135dd"`
[INFO] [stderr]    Compiling rand v0.5.1
[INFO] [stderr]    Compiling rust-tests v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::cmp::PartialOrd`
[INFO] [stderr]  --> src/generics.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::cmp::PartialOrd;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/hashmaps.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::another::thing`
[INFO] [stderr]  --> src/modules/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use self::another::thing;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `DerefMut`, `Deref`
[INFO] [stderr]  --> src/smart_pointers.rs:1:16
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ops::{Deref, DerefMut};
[INFO] [stderr]   |                ^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Any`, `TypeId`
[INFO] [stderr]  --> src/structs.rs:1:16
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::any::{Any, TypeId};
[INFO] [stderr]   |                ^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::f32::consts::PI`
[INFO] [stderr]  --> src/structs.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::f32::consts::PI;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0601]: `main` function not found in crate `rust_tests`
[INFO] [stderr]   --> src/main.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | / mod arithmetic;
[INFO] [stderr] 2  | | mod borrowing;
[INFO] [stderr] 3  | | mod closures;
[INFO] [stderr] 4  | | mod enums;
[INFO] [stderr] ...  |
[INFO] [stderr] 24 | |     assert!(true)
[INFO] [stderr] 25 | | }
[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-tests`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7b7805235694c0e288b0534a365c265f01fe82c4ced06c5077dee72be64135dd"`
[INFO] running `"docker" "rm" "-f" "7b7805235694c0e288b0534a365c265f01fe82c4ced06c5077dee72be64135dd"`
[INFO] [stdout] 7b7805235694c0e288b0534a365c265f01fe82c4ced06c5077dee72be64135dd