[INFO] updating cached repository bertiespell/game_of_life_rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/bertiespell/game_of_life_rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/bertiespell/game_of_life_rust" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/bertiespell/game_of_life_rust"` [INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/bertiespell/game_of_life_rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/bertiespell/game_of_life_rust" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/bertiespell/game_of_life_rust"` [INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/bertiespell/game_of_life_rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] c8557d453c859c9ecb61969cd14ceeb47ecdc1af [INFO] sha for GitHub repo bertiespell/game_of_life_rust: c8557d453c859c9ecb61969cd14ceeb47ecdc1af [INFO] validating manifest of bertiespell/game_of_life_rust on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of bertiespell/game_of_life_rust on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing bertiespell/game_of_life_rust [INFO] finished frobbing bertiespell/game_of_life_rust [INFO] frobbed toml for bertiespell/game_of_life_rust written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/bertiespell/game_of_life_rust/Cargo.toml [INFO] started frobbing bertiespell/game_of_life_rust [INFO] finished frobbing bertiespell/game_of_life_rust [INFO] frobbed toml for bertiespell/game_of_life_rust written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/bertiespell/game_of_life_rust/Cargo.toml [INFO] crate bertiespell/game_of_life_rust already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking bertiespell/game_of_life_rust against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-0/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/bertiespell/game_of_life_rust:/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 233d596c7ad67a0e2364598bf4479be34970211c0d039f7319d06de18159439e [INFO] running `"docker" "start" "-a" "233d596c7ad67a0e2364598bf4479be34970211c0d039f7319d06de18159439e"` [INFO] [stderr] Checking game_of_life v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: variant is never constructed: `Dead` [INFO] [stderr] --> src/main.rs:12:5 [INFO] [stderr] | [INFO] [stderr] 12 | Dead [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used [INFO] [stderr] --> src/main.rs:31:9 [INFO] [stderr] | [INFO] [stderr] 31 | / self.cells.iter().map(|row| { [INFO] [stderr] 32 | | row.iter().map(|cell| fmt::write(f, format_args!("{}", cell))).collect::>(); [INFO] [stderr] 33 | | println!(); [INFO] [stderr] 34 | | }).collect::>(); [INFO] [stderr] | |_______________________________^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used [INFO] [stderr] --> src/main.rs:32:13 [INFO] [stderr] | [INFO] [stderr] 32 | row.iter().map(|cell| fmt::write(f, format_args!("{}", cell))).collect::>(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Dead` [INFO] [stderr] --> src/main.rs:12:5 [INFO] [stderr] | [INFO] [stderr] 12 | Dead [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used [INFO] [stderr] --> src/main.rs:31:9 [INFO] [stderr] | [INFO] [stderr] 31 | / self.cells.iter().map(|row| { [INFO] [stderr] 32 | | row.iter().map(|cell| fmt::write(f, format_args!("{}", cell))).collect::>(); [INFO] [stderr] 33 | | println!(); [INFO] [stderr] 34 | | }).collect::>(); [INFO] [stderr] | |_______________________________^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used [INFO] [stderr] --> src/main.rs:32:13 [INFO] [stderr] | [INFO] [stderr] 32 | row.iter().map(|cell| fmt::write(f, format_args!("{}", cell))).collect::>(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.54s [INFO] running `"docker" "inspect" "233d596c7ad67a0e2364598bf4479be34970211c0d039f7319d06de18159439e"` [INFO] running `"docker" "rm" "-f" "233d596c7ad67a0e2364598bf4479be34970211c0d039f7319d06de18159439e"` [INFO] [stdout] 233d596c7ad67a0e2364598bf4479be34970211c0d039f7319d06de18159439e