Dec 18 02:37:08.895 INFO checking cesare/rust-euler against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 02:37:08.895 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/cesare/rust-euler:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 02:37:09.368 INFO [stdout] 59070962661d6dcca510df247dc018a92c84b0c9a42d5612d642a264b4ee446e
Dec 18 02:37:09.371 INFO running `"docker" "start" "-a" "59070962661d6dcca510df247dc018a92c84b0c9a42d5612d642a264b4ee446e"`
Dec 18 02:37:12.128 INFO [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
Dec 18 02:37:12.128 INFO [stderr] disables Cargo from automatically inferring other binary targets.
Dec 18 02:37:12.128 INFO [stderr] This inference behavior will change in the Rust 2018 edition and the following
Dec 18 02:37:12.128 INFO [stderr] files will be included as a binary target:
Dec 18 02:37:12.128 INFO [stderr] 
Dec 18 02:37:12.128 INFO [stderr] * /opt/crater/workdir/src/main.rs
Dec 18 02:37:12.128 INFO [stderr] 
Dec 18 02:37:12.128 INFO [stderr] This is likely to break cargo build or cargo test as these files may not be
Dec 18 02:37:12.128 INFO [stderr] ready to be compiled as a binary target today. You can future-proof yourself
Dec 18 02:37:12.128 INFO [stderr] and disable this warning by adding `autobins = false` to your [package]
Dec 18 02:37:12.128 INFO [stderr] section. You may also move the files to a location where Cargo would not
Dec 18 02:37:12.128 INFO [stderr] automatically infer them to be a target, such as in subfolders.
Dec 18 02:37:12.128 INFO [stderr] 
Dec 18 02:37:12.128 INFO [stderr] For more information on this warning you can consult
Dec 18 02:37:12.128 INFO [stderr] https://github.com/rust-lang/cargo/issues/5330
Dec 18 02:37:12.161 INFO [stderr]     Checking euler v0.1.0 (/opt/crater/workdir)
Dec 18 02:37:13.216 INFO [stderr] warning: unnecessary parentheses around method argument
Dec 18 02:37:13.216 INFO [stderr]   --> src/problem_005_smallest_multiple.rs:42:42
Dec 18 02:37:13.216 INFO [stderr]    |
Dec 18 02:37:13.216 INFO [stderr] 42 |     let product = results.iter().fold(1, (|a, b| a * b));
Dec 18 02:37:13.216 INFO [stderr]    |                                          ^^^^^^^^^^^^^^ help: remove these parentheses
Dec 18 02:37:13.217 INFO [stderr]    |
Dec 18 02:37:13.217 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 18 02:37:13.217 INFO [stderr] 
Dec 18 02:37:13.826 INFO [stderr] warning: method is never used: `reset`
Dec 18 02:37:13.827 INFO [stderr]    --> src/prime.rs:134:5
Dec 18 02:37:13.827 INFO [stderr]     |
Dec 18 02:37:13.827 INFO [stderr] 134 |     pub fn reset(&mut self) {
Dec 18 02:37:13.828 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 02:37:13.844 INFO [stderr]     |
Dec 18 02:37:13.845 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 18 02:37:13.845 INFO [stderr] 
Dec 18 02:37:14.864 INFO [stderr] warning: unnecessary parentheses around method argument
Dec 18 02:37:14.865 INFO [stderr]   --> src/problem_005_smallest_multiple.rs:42:42
Dec 18 02:37:14.865 INFO [stderr]    |
Dec 18 02:37:14.865 INFO [stderr] 42 |     let product = results.iter().fold(1, (|a, b| a * b));
Dec 18 02:37:14.866 INFO [stderr]    |                                          ^^^^^^^^^^^^^^ help: remove these parentheses
Dec 18 02:37:14.866 INFO [stderr]    |
Dec 18 02:37:14.866 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 18 02:37:14.867 INFO [stderr] 
Dec 18 02:37:15.244 INFO [stderr] warning: method is never used: `reset`
Dec 18 02:37:15.245 INFO [stderr]    --> src/prime.rs:134:5
Dec 18 02:37:15.245 INFO [stderr]     |
Dec 18 02:37:15.245 INFO [stderr] 134 |     pub fn reset(&mut self) {
Dec 18 02:37:15.246 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 02:37:15.246 INFO [stderr]     |
Dec 18 02:37:15.246 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 18 02:37:15.246 INFO [stderr] 
Dec 18 02:37:15.364 INFO [stderr] warning: method is never used: `reset`
Dec 18 02:37:15.365 INFO [stderr]    --> src/prime.rs:134:5
Dec 18 02:37:15.365 INFO [stderr]     |
Dec 18 02:37:15.365 INFO [stderr] 134 |     pub fn reset(&mut self) {
Dec 18 02:37:15.365 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 02:37:15.388 INFO [stderr]     |
Dec 18 02:37:15.389 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 18 02:37:15.389 INFO [stderr] 
Dec 18 02:37:15.732 INFO [stderr] warning: method is never used: `reset`
Dec 18 02:37:15.732 INFO [stderr]    --> src/prime.rs:134:5
Dec 18 02:37:15.733 INFO [stderr]     |
Dec 18 02:37:15.733 INFO [stderr] 134 |     pub fn reset(&mut self) {
Dec 18 02:37:15.733 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 02:37:15.734 INFO [stderr]     |
Dec 18 02:37:15.735 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 18 02:37:15.735 INFO [stderr] 
Dec 18 02:37:16.164 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.06s
Dec 18 02:37:17.784 INFO running `"docker" "inspect" "59070962661d6dcca510df247dc018a92c84b0c9a42d5612d642a264b4ee446e"`
Dec 18 02:37:18.116 INFO running `"docker" "rm" "-f" "59070962661d6dcca510df247dc018a92c84b0c9a42d5612d642a264b4ee446e"`
Dec 18 02:37:18.460 INFO [stdout] 59070962661d6dcca510df247dc018a92c84b0c9a42d5612d642a264b4ee446e