Dec 19 12:53:02.420 INFO checking mbbxAdam/minigrep against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 12:53:02.421 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/mbbxAdam/minigrep:/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=forbid" "-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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 12:53:02.836 INFO [stdout] 3c6b5bd27b2309df79c78a2275de933e59335bbe2b8d55b96a04d80ee3e99f4d
Dec 19 12:53:02.838 INFO running `"docker" "start" "-a" "3c6b5bd27b2309df79c78a2275de933e59335bbe2b8d55b96a04d80ee3e99f4d"`
Dec 19 12:53:04.776 INFO [stderr]     Checking minigrep v0.1.0 (/opt/crater/workdir)
Dec 19 12:53:05.088 INFO [stderr] error[E0308]: mismatched types
Dec 19 12:53:05.088 INFO [stderr]   --> src/main.rs:20:54
Dec 19 12:53:05.088 INFO [stderr]    |
Dec 19 12:53:05.088 INFO [stderr] 20 |   fn run(config: Config) -> Result<(), Box<dyn Error>> {
Dec 19 12:53:05.088 INFO [stderr]    |  ______________________________________________________^
Dec 19 12:53:05.088 INFO [stderr] 21 | |     let contents = fs::read_to_string(config.filename)
Dec 19 12:53:05.088 INFO [stderr] 22 | |         .expect("Something went wrong reading the file");
Dec 19 12:53:05.088 INFO [stderr] 23 | |
Dec 19 12:53:05.088 INFO [stderr] 24 | |     println!("With text:\n{}", contents);
Dec 19 12:53:05.088 INFO [stderr] 25 | | }
Dec 19 12:53:05.088 INFO [stderr]    | |_^ expected enum `std::result::Result`, found ()
Dec 19 12:53:05.088 INFO [stderr]    |
Dec 19 12:53:05.096 INFO [stderr]    = note: expected type `std::result::Result<(), std::boxed::Box<(dyn std::error::Error + 'static)>>`
Dec 19 12:53:05.096 INFO [stderr]               found type `()`
Dec 19 12:53:05.096 INFO [stderr] 
Dec 19 12:53:05.096 INFO [stderr] error: aborting due to previous error
Dec 19 12:53:05.096 INFO [stderr] 
Dec 19 12:53:05.096 INFO [stderr] For more information about this error, try `rustc --explain E0308`.
Dec 19 12:53:05.104 INFO [stderr] error[E0308]: mismatched types
Dec 19 12:53:05.104 INFO [stderr]   --> src/main.rs:20:54
Dec 19 12:53:05.104 INFO [stderr]    |
Dec 19 12:53:05.104 INFO [stderr] 20 |   fn run(config: Config) -> Result<(), Box<dyn Error>> {
Dec 19 12:53:05.104 INFO [stderr]    |  ______________________________________________________^
Dec 19 12:53:05.104 INFO [stderr] 21 | |     let contents = fs::read_to_string(config.filename)
Dec 19 12:53:05.104 INFO [stderr] 22 | |         .expect("Something went wrong reading the file");
Dec 19 12:53:05.104 INFO [stderr] 23 | |
Dec 19 12:53:05.104 INFO [stderr] 24 | |     println!("With text:\n{}", contents);
Dec 19 12:53:05.104 INFO [stderr] 25 | | }
Dec 19 12:53:05.104 INFO [stderr]    | |_^ expected enum `std::result::Result`, found ()
Dec 19 12:53:05.104 INFO [stderr]    |
Dec 19 12:53:05.104 INFO [stderr]    = note: expected type `std::result::Result<(), std::boxed::Box<(dyn std::error::Error + 'static)>>`
Dec 19 12:53:05.104 INFO [stderr]               found type `()`
Dec 19 12:53:05.104 INFO [stderr] 
Dec 19 12:53:05.112 INFO [stderr] error: aborting due to previous error
Dec 19 12:53:05.112 INFO [stderr] 
Dec 19 12:53:05.112 INFO [stderr] For more information about this error, try `rustc --explain E0308`.
Dec 19 12:53:05.119 INFO [stderr] error: Could not compile `minigrep`.
Dec 19 12:53:05.119 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 12:53:05.136 INFO [stderr] error: Could not compile `minigrep`.
Dec 19 12:53:05.136 INFO [stderr] 
Dec 19 12:53:05.136 INFO [stderr] To learn more, run the command again with --verbose.
Dec 19 12:53:06.338 INFO running `"docker" "inspect" "3c6b5bd27b2309df79c78a2275de933e59335bbe2b8d55b96a04d80ee3e99f4d"`
Dec 19 12:53:06.750 INFO running `"docker" "rm" "-f" "3c6b5bd27b2309df79c78a2275de933e59335bbe2b8d55b96a04d80ee3e99f4d"`
Dec 19 12:53:07.094 INFO [stdout] 3c6b5bd27b2309df79c78a2275de933e59335bbe2b8d55b96a04d80ee3e99f4d