[INFO] updating cached repository CharlesBean/SuperChat
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/CharlesBean/SuperChat
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/CharlesBean/SuperChat" "work/ex/beta-1.38-1/sources/1.37.0/gh/CharlesBean/SuperChat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/CharlesBean/SuperChat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/CharlesBean/SuperChat" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CharlesBean/SuperChat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CharlesBean/SuperChat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] df1e3d5f4444abfb814af1630fa800f5ec201eb3
[INFO] sha for GitHub repo CharlesBean/SuperChat: df1e3d5f4444abfb814af1630fa800f5ec201eb3
[INFO] validating manifest of CharlesBean/SuperChat on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of CharlesBean/SuperChat on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing CharlesBean/SuperChat
[INFO] finished frobbing CharlesBean/SuperChat
[INFO] frobbed toml for CharlesBean/SuperChat written to work/ex/beta-1.38-1/sources/1.37.0/gh/CharlesBean/SuperChat/Cargo.toml
[INFO] started frobbing CharlesBean/SuperChat
[INFO] finished frobbing CharlesBean/SuperChat
[INFO] frobbed toml for CharlesBean/SuperChat written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/CharlesBean/SuperChat/Cargo.toml
[INFO] crate CharlesBean/SuperChat already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing CharlesBean/SuperChat against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/CharlesBean/SuperChat:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 66920d8fafaf6eb3ec5acba93e785f2cd938ddb948b3b32bda6122d609145f41
[INFO] running `"docker" "start" "-a" "66920d8fafaf6eb3ec5acba93e785f2cd938ddb948b3b32bda6122d609145f41"`
[INFO] [stderr]    Compiling libc v0.2.17
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]    Compiling net2 v0.2.26
[INFO] [stderr]    Compiling mio v0.6.1 (https://github.com/carllerche/mio#c8312b71)
[INFO] [stderr]    Compiling SuperChat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventLoop`
[INFO] [stderr]   --> src/main.rs:13:26
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let mut event_loop = EventLoop::new().unwrap();
[INFO] [stderr]    |                          ^^^^^^^^^ use of undeclared type or module `EventLoop`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `mio::*`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use mio::*;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: Could not compile `SuperChat`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "66920d8fafaf6eb3ec5acba93e785f2cd938ddb948b3b32bda6122d609145f41"`
[INFO] running `"docker" "rm" "-f" "66920d8fafaf6eb3ec5acba93e785f2cd938ddb948b3b32bda6122d609145f41"`
[INFO] [stdout] 66920d8fafaf6eb3ec5acba93e785f2cd938ddb948b3b32bda6122d609145f41