Dec 14 02:52:54.676 INFO testing andresoro/grep against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 14 02:52:54.676 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 02:52:55.104 INFO [stdout] fb3eb8d5f5c19bd7ee971b7602531583e7ffd5ab90a831627c6d6de54aa04dea
Dec 14 02:52:55.112 INFO running `"docker" "start" "-a" "fb3eb8d5f5c19bd7ee971b7602531583e7ffd5ab90a831627c6d6de54aa04dea"`
Dec 14 02:52:55.986 INFO [stderr] usermod: no changes
Dec 14 02:52:56.044 INFO [stderr]    Compiling grep v0.1.0 (/source)
Dec 14 02:52:56.415 INFO [stderr] warning: unused import: `std::fs`
Dec 14 02:52:56.415 INFO [stderr]  --> src/lib.rs:2:5
Dec 14 02:52:56.415 INFO [stderr]   |
Dec 14 02:52:56.415 INFO [stderr] 2 | use std::fs;
Dec 14 02:52:56.415 INFO [stderr]   |     ^^^^^^^
Dec 14 02:52:56.415 INFO [stderr]   |
Dec 14 02:52:56.415 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 14 02:52:56.415 INFO [stderr] 
Dec 14 02:52:56.439 INFO [stderr] error[E0308]: mismatched types
Dec 14 02:52:56.439 INFO [stderr]   --> src/lib.rs:22:58
Dec 14 02:52:56.439 INFO [stderr]    |
Dec 14 02:52:56.439 INFO [stderr] 22 |   pub fn run(config: Config) -> Result<(), Box<dyn Error>> {
Dec 14 02:52:56.439 INFO [stderr]    |  __________________________________________________________^
Dec 14 02:52:56.439 INFO [stderr] 23 | |     
Dec 14 02:52:56.439 INFO [stderr] 24 | | }
Dec 14 02:52:56.439 INFO [stderr]    | |_^ expected enum `std::result::Result`, found ()
Dec 14 02:52:56.439 INFO [stderr]    |
Dec 14 02:52:56.439 INFO [stderr]    = note: expected type `std::result::Result<(), std::boxed::Box<(dyn std::error::Error + 'static)>>`
Dec 14 02:52:56.439 INFO [stderr]               found type `()`
Dec 14 02:52:56.439 INFO [stderr] 
Dec 14 02:52:56.443 INFO [stderr] error: aborting due to previous error
Dec 14 02:52:56.443 INFO [stderr] 
Dec 14 02:52:56.443 INFO [stderr] For more information about this error, try `rustc --explain E0308`.
Dec 14 02:52:56.459 INFO [stderr] error: Could not compile `grep`.
Dec 14 02:52:56.459 INFO [stderr] 
Dec 14 02:52:56.459 INFO [stderr] To learn more, run the command again with --verbose.
Dec 14 02:52:56.459 INFO [stderr] su: No module specific data is present
Dec 14 02:52:57.172 INFO running `"docker" "inspect" "fb3eb8d5f5c19bd7ee971b7602531583e7ffd5ab90a831627c6d6de54aa04dea"`
Dec 14 02:52:57.568 INFO running `"docker" "rm" "-f" "fb3eb8d5f5c19bd7ee971b7602531583e7ffd5ab90a831627c6d6de54aa04dea"`
Dec 14 02:52:57.818 INFO [stdout] fb3eb8d5f5c19bd7ee971b7602531583e7ffd5ab90a831627c6d6de54aa04dea