Dec 17 19:53:21.346 INFO checking mbbxAdam/minigrep against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252 Dec 17 19:53:21.346 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"` Dec 17 19:53:21.864 INFO [stdout] 705546c327414c7829422ef9695f88f32d034aed169ac6a7c263df22f96bf03a Dec 17 19:53:21.870 INFO running `"docker" "start" "-a" "705546c327414c7829422ef9695f88f32d034aed169ac6a7c263df22f96bf03a"` Dec 17 19:53:24.576 INFO [stderr] Checking minigrep v0.1.0 (/opt/crater/workdir) Dec 17 19:53:24.840 INFO [stderr] error[E0308]: mismatched types Dec 17 19:53:24.840 INFO [stderr] --> src/main.rs:20:54 Dec 17 19:53:24.841 INFO [stderr] | Dec 17 19:53:24.841 INFO [stderr] 20 | fn run(config: Config) -> Result<(), Box> { Dec 17 19:53:24.841 INFO [stderr] | ______________________________________________________^ Dec 17 19:53:24.841 INFO [stderr] 21 | | let contents = fs::read_to_string(config.filename) Dec 17 19:53:24.841 INFO [stderr] 22 | | .expect("Something went wrong reading the file"); Dec 17 19:53:24.841 INFO [stderr] 23 | | Dec 17 19:53:24.841 INFO [stderr] 24 | | println!("With text:\n{}", contents); Dec 17 19:53:24.841 INFO [stderr] 25 | | } Dec 17 19:53:24.841 INFO [stderr] | |_^ expected enum `std::result::Result`, found () Dec 17 19:53:24.841 INFO [stderr] | Dec 17 19:53:24.841 INFO [stderr] = note: expected type `std::result::Result<(), std::boxed::Box<(dyn std::error::Error + 'static)>>` Dec 17 19:53:24.841 INFO [stderr] found type `()` Dec 17 19:53:24.841 INFO [stderr] Dec 17 19:53:24.841 INFO [stderr] error: aborting due to previous error Dec 17 19:53:24.841 INFO [stderr] Dec 17 19:53:24.841 INFO [stderr] For more information about this error, try `rustc --explain E0308`. Dec 17 19:53:24.842 INFO [stderr] error: Could not compile `minigrep`. Dec 17 19:53:24.842 INFO [stderr] warning: build failed, waiting for other jobs to finish... Dec 17 19:53:24.960 INFO [stderr] error[E0308]: mismatched types Dec 17 19:53:24.960 INFO [stderr] --> src/main.rs:20:54 Dec 17 19:53:24.960 INFO [stderr] | Dec 17 19:53:24.960 INFO [stderr] 20 | fn run(config: Config) -> Result<(), Box> { Dec 17 19:53:24.960 INFO [stderr] | ______________________________________________________^ Dec 17 19:53:24.960 INFO [stderr] 21 | | let contents = fs::read_to_string(config.filename) Dec 17 19:53:24.960 INFO [stderr] 22 | | .expect("Something went wrong reading the file"); Dec 17 19:53:24.960 INFO [stderr] 23 | | Dec 17 19:53:24.960 INFO [stderr] 24 | | println!("With text:\n{}", contents); Dec 17 19:53:24.960 INFO [stderr] 25 | | } Dec 17 19:53:24.960 INFO [stderr] | |_^ expected enum `std::result::Result`, found () Dec 17 19:53:24.960 INFO [stderr] | Dec 17 19:53:24.960 INFO [stderr] = note: expected type `std::result::Result<(), std::boxed::Box<(dyn std::error::Error + 'static)>>` Dec 17 19:53:24.960 INFO [stderr] found type `()` Dec 17 19:53:24.960 INFO [stderr] Dec 17 19:53:24.968 INFO [stderr] error: aborting due to previous error Dec 17 19:53:24.968 INFO [stderr] Dec 17 19:53:24.968 INFO [stderr] For more information about this error, try `rustc --explain E0308`. Dec 17 19:53:24.975 INFO [stderr] error: Could not compile `minigrep`. Dec 17 19:53:24.975 INFO [stderr] Dec 17 19:53:24.975 INFO [stderr] To learn more, run the command again with --verbose. Dec 17 19:53:26.219 INFO running `"docker" "inspect" "705546c327414c7829422ef9695f88f32d034aed169ac6a7c263df22f96bf03a"` Dec 17 19:53:26.648 INFO running `"docker" "rm" "-f" "705546c327414c7829422ef9695f88f32d034aed169ac6a7c263df22f96bf03a"` Dec 17 19:53:27.088 INFO [stdout] 705546c327414c7829422ef9695f88f32d034aed169ac6a7c263df22f96bf03a