[INFO] updating cached repository theHooloovoo/Game_of_Life-Rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/theHooloovoo/Game_of_Life-Rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/theHooloovoo/Game_of_Life-Rust" "work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/theHooloovoo/Game_of_Life-Rust"` [INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/theHooloovoo/Game_of_Life-Rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/theHooloovoo/Game_of_Life-Rust" "work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/theHooloovoo/Game_of_Life-Rust"` [INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/theHooloovoo/Game_of_Life-Rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 959f41d6a578a988c02609bc41a57a9eb598910c [INFO] sha for GitHub repo theHooloovoo/Game_of_Life-Rust: 959f41d6a578a988c02609bc41a57a9eb598910c [INFO] validating manifest of theHooloovoo/Game_of_Life-Rust on toolchain master#589beb979c0f1a9736e02e578913db88398c3ba5 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of theHooloovoo/Game_of_Life-Rust on toolchain try#42445ded8fd34235a676755cb5d079658ed51f6a [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing theHooloovoo/Game_of_Life-Rust [INFO] finished frobbing theHooloovoo/Game_of_Life-Rust [INFO] frobbed toml for theHooloovoo/Game_of_Life-Rust written to work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/theHooloovoo/Game_of_Life-Rust/Cargo.toml [INFO] started frobbing theHooloovoo/Game_of_Life-Rust [INFO] finished frobbing theHooloovoo/Game_of_Life-Rust [INFO] frobbed toml for theHooloovoo/Game_of_Life-Rust written to work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/theHooloovoo/Game_of_Life-Rust/Cargo.toml [INFO] crate theHooloovoo/Game_of_Life-Rust already has a lockfile, it will not be regenerated [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking theHooloovoo/Game_of_Life-Rust against master#589beb979c0f1a9736e02e578913db88398c3ba5 for pr-60944 [INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60944/worker-3/master#589beb979c0f1a9736e02e578913db88398c3ba5:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/theHooloovoo/Game_of_Life-Rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] ad69718dfddd2ab5363096d47cf5d638d50134724cde80ad8c8b08ae947638f1 [INFO] running `"docker" "start" "-a" "ad69718dfddd2ab5363096d47cf5d638d50134724cde80ad8c8b08ae947638f1"` [INFO] [stderr] Checking getopts v0.2.14 [INFO] [stderr] warning[E0503]: cannot use `state` because it was mutably borrowed [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/getopts-0.2.14/src/lib.rs:1008:33 [INFO] [stderr] | [INFO] [stderr] 955 | let mut machine = |cont: &mut bool, (i, c): (usize, char)| { [INFO] [stderr] | ---------------------------------------- borrow of `state` occurs here [INFO] [stderr] ... [INFO] [stderr] 959 | state = match (state, whitespace, limit) { [INFO] [stderr] | ----- borrow occurs due to use of `state` in closure [INFO] [stderr] ... [INFO] [stderr] 1008 | while cont && match state { B | C => true, A => false } { [INFO] [stderr] | ^ use of borrowed `state` [INFO] [stderr] 1009 | machine(&mut cont, (fake_i, ' ')); [INFO] [stderr] | ------- borrow later used here [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] [INFO] [stderr] Checking conway_rs v0.0.1 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::error::Error` [INFO] [stderr] --> src/reader.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::error::Error; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::error::Error` [INFO] [stderr] --> src/reader.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::error::Error; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `arg_file_name` is never read [INFO] [stderr] --> src/main.rs:28:13 [INFO] [stderr] | [INFO] [stderr] 28 | let mut arg_file_name = "".to_string(); [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `main_grid` is never read [INFO] [stderr] --> src/main.rs:58:25 [INFO] [stderr] | [INFO] [stderr] 58 | Ok(data) => main_grid = grid::Grid::load_from_file_data(data), [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `cell_count` is never read [INFO] [stderr] --> src/grid.rs:107:17 [INFO] [stderr] | [INFO] [stderr] 107 | let mut cell_count = 0; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `arg_file_name` is never read [INFO] [stderr] --> src/main.rs:28:13 [INFO] [stderr] | [INFO] [stderr] 28 | let mut arg_file_name = "".to_string(); [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `main_grid` is never read [INFO] [stderr] --> src/main.rs:58:25 [INFO] [stderr] | [INFO] [stderr] 58 | Ok(data) => main_grid = grid::Grid::load_from_file_data(data), [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `cell_count` is never read [INFO] [stderr] --> src/grid.rs:107:17 [INFO] [stderr] | [INFO] [stderr] 107 | let mut cell_count = 0; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused comparison that must be used [INFO] [stderr] --> src/grid.rs:150:33 [INFO] [stderr] | [INFO] [stderr] 150 | if self.state == true { self.state == false; } [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused comparison that must be used [INFO] [stderr] --> src/grid.rs:151:33 [INFO] [stderr] | [INFO] [stderr] 151 | else { self.state == true; } [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused comparison that must be used [INFO] [stderr] --> src/grid.rs:150:33 [INFO] [stderr] | [INFO] [stderr] 150 | if self.state == true { self.state == false; } [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused comparison that must be used [INFO] [stderr] --> src/grid.rs:151:33 [INFO] [stderr] | [INFO] [stderr] 151 | else { self.state == true; } [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.22s [INFO] running `"docker" "inspect" "ad69718dfddd2ab5363096d47cf5d638d50134724cde80ad8c8b08ae947638f1"` [INFO] running `"docker" "rm" "-f" "ad69718dfddd2ab5363096d47cf5d638d50134724cde80ad8c8b08ae947638f1"` [INFO] [stdout] ad69718dfddd2ab5363096d47cf5d638d50134724cde80ad8c8b08ae947638f1