[INFO] updating cached repository Qubeo/hello-rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/Qubeo/hello-rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/Qubeo/hello-rust" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/Qubeo/hello-rust"` [INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/Qubeo/hello-rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/Qubeo/hello-rust" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/Qubeo/hello-rust"` [INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/Qubeo/hello-rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] a9b6f155298e1c6d29acc2ea0a3e390e6453955a [INFO] sha for GitHub repo Qubeo/hello-rust: a9b6f155298e1c6d29acc2ea0a3e390e6453955a [INFO] validating manifest of Qubeo/hello-rust on toolchain master#a850a426491e14186af2250549bf41256b5938d2 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of Qubeo/hello-rust on toolchain try#06a150c7d11500b41499224f165e9de1de096768 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing Qubeo/hello-rust [INFO] finished frobbing Qubeo/hello-rust [INFO] frobbed toml for Qubeo/hello-rust written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/Qubeo/hello-rust/Cargo.toml [INFO] started frobbing Qubeo/hello-rust [INFO] finished frobbing Qubeo/hello-rust [INFO] frobbed toml for Qubeo/hello-rust written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/Qubeo/hello-rust/Cargo.toml [INFO] crate Qubeo/hello-rust already has a lockfile, it will not be regenerated [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking Qubeo/hello-rust against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162 [INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-2/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/Qubeo/hello-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" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] b88dfe3df2fd07bde2912dea7a173d0f6dfcdc4859958efd5627a3ae51b296a0 [INFO] running `"docker" "start" "-a" "b88dfe3df2fd07bde2912dea7a173d0f6dfcdc4859958efd5627a3ae51b296a0"` [INFO] [stderr] Compiling thread-id v3.3.0 [INFO] [stderr] Compiling syn v0.15.24 [INFO] [stderr] Compiling serde_derive v1.0.84 [INFO] [stderr] Compiling flame v0.2.2 [INFO] [stderr] Compiling flamer v0.3.0 [INFO] [stderr] Checking hello-rust v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/grid.rs:74:9 [INFO] [stderr] | [INFO] [stderr] 74 | /// @ Q: Complexity: quadratic? [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 75 | / for i in 1..=self.height-2 { [INFO] [stderr] 76 | | for j in 1..=self.width-2 { [INFO] [stderr] 77 | | let mut count = 0; [INFO] [stderr] 78 | | for n in 0..=2 { [INFO] [stderr] ... | [INFO] [stderr] 86 | | } [INFO] [stderr] 87 | | } [INFO] [stderr] | |_________- rustdoc does not generate documentation for expressions [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_doc_comments)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/grid.rs:74:9 [INFO] [stderr] | [INFO] [stderr] 74 | /// @ Q: Complexity: quadratic? [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 75 | / for i in 1..=self.height-2 { [INFO] [stderr] 76 | | for j in 1..=self.width-2 { [INFO] [stderr] 77 | | let mut count = 0; [INFO] [stderr] 78 | | for n in 0..=2 { [INFO] [stderr] ... | [INFO] [stderr] 86 | | } [INFO] [stderr] 87 | | } [INFO] [stderr] | |_________- rustdoc does not generate documentation for expressions [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_doc_comments)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io` [INFO] [stderr] --> src/main.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::io; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fmt` [INFO] [stderr] --> src/main.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::fmt; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io` [INFO] [stderr] --> src/grid.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::io; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/grid.rs:25:20 [INFO] [stderr] | [INFO] [stderr] 25 | if (i % 3 == 0) { Cell::Alive } else { Cell::Dead } [INFO] [stderr] | ^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_parens)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused macro definition [INFO] [stderr] --> src/grid.rs:120:9 [INFO] [stderr] | [INFO] [stderr] 120 | macro_rules! wrp { ( ($xe:expr, $ye:expr) ) => { (self.wrap_x($xe), self.wrap_y($ye)) } }; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_macros)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io` [INFO] [stderr] --> src/main.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::io; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fmt` [INFO] [stderr] --> src/main.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::fmt; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io` [INFO] [stderr] --> src/grid.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::io; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/grid.rs:25:20 [INFO] [stderr] | [INFO] [stderr] 25 | if (i % 3 == 0) { Cell::Alive } else { Cell::Dead } [INFO] [stderr] | ^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_parens)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused macro definition [INFO] [stderr] --> src/grid.rs:120:9 [INFO] [stderr] | [INFO] [stderr] 120 | macro_rules! wrp { ( ($xe:expr, $ye:expr) ) => { (self.wrap_x($xe), self.wrap_y($ye)) } }; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_macros)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:21:9 [INFO] [stderr] | [INFO] [stderr] 21 | for i in 0..=4 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/grid.rs:63:44 [INFO] [stderr] | [INFO] [stderr] 63 | pub fn count_alive_neighbors_0(&self, (x, y): (u32, u32)) -> u8 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/grid.rs:63:47 [INFO] [stderr] | [INFO] [stderr] 63 | pub fn count_alive_neighbors_0(&self, (x, y): (u32, u32)) -> u8 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/grid.rs:96:13 [INFO] [stderr] | [INFO] [stderr] 96 | let a: () = self.cells.iter_mut().enumerate() // Type () as we don't actually map and use the collected items, we just change the *cell. [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `count` [INFO] [stderr] --> src/grid.rs:123:17 [INFO] [stderr] | [INFO] [stderr] 123 | let mut count = 0; [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_count` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/grid.rs:118:44 [INFO] [stderr] | [INFO] [stderr] 118 | pub fn count_alive_neighbors_1(&self, (x, y): (u32, u32)) -> u8 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/grid.rs:118:47 [INFO] [stderr] | [INFO] [stderr] 118 | pub fn count_alive_neighbors_1(&self, (x, y): (u32, u32)) -> u8 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: variable `j` is assigned to, but never used [INFO] [stderr] --> src/grid.rs:157:17 [INFO] [stderr] | [INFO] [stderr] 157 | let mut j: u32 = 0; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_j` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/grid.rs:160:14 [INFO] [stderr] | [INFO] [stderr] 160 | for (i, line) in self.cells.as_slice().chunks(self.width as usize).enumerate() { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:21:9 [INFO] [stderr] | [INFO] [stderr] 21 | for i in 0..=4 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/grid.rs:63:44 [INFO] [stderr] | [INFO] [stderr] 63 | pub fn count_alive_neighbors_0(&self, (x, y): (u32, u32)) -> u8 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/grid.rs:63:47 [INFO] [stderr] | [INFO] [stderr] 63 | pub fn count_alive_neighbors_0(&self, (x, y): (u32, u32)) -> u8 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/grid.rs:96:13 [INFO] [stderr] | [INFO] [stderr] 96 | let a: () = self.cells.iter_mut().enumerate() // Type () as we don't actually map and use the collected items, we just change the *cell. [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `count` [INFO] [stderr] --> src/grid.rs:123:17 [INFO] [stderr] | [INFO] [stderr] 123 | let mut count = 0; [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_count` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/grid.rs:118:44 [INFO] [stderr] | [INFO] [stderr] 118 | pub fn count_alive_neighbors_1(&self, (x, y): (u32, u32)) -> u8 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/grid.rs:118:47 [INFO] [stderr] | [INFO] [stderr] 118 | pub fn count_alive_neighbors_1(&self, (x, y): (u32, u32)) -> u8 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: variable `j` is assigned to, but never used [INFO] [stderr] --> src/grid.rs:157:17 [INFO] [stderr] | [INFO] [stderr] 157 | let mut j: u32 = 0; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_j` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/grid.rs:160:14 [INFO] [stderr] | [INFO] [stderr] 160 | for (i, line) in self.cells.as_slice().chunks(self.width as usize).enumerate() { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/grid.rs:39:13 [INFO] [stderr] | [INFO] [stderr] 39 | let mut nm = self.compute_neighbor_matrix_0(); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/grid.rs:39:13 [INFO] [stderr] | [INFO] [stderr] 39 | let mut nm = self.compute_neighbor_matrix_0(); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/grid.rs:123:13 [INFO] [stderr] | [INFO] [stderr] 123 | let mut count = 0; [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/grid.rs:123:13 [INFO] [stderr] | [INFO] [stderr] 123 | let mut count = 0; [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `render` [INFO] [stderr] --> src/grid.rs:44:5 [INFO] [stderr] | [INFO] [stderr] 44 | pub fn render(&self) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_x_y` [INFO] [stderr] --> src/grid.rs:56:5 [INFO] [stderr] | [INFO] [stderr] 56 | pub fn get_x_y(&self, index: u32) -> (u32, u32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `count_alive_neighbors_0` [INFO] [stderr] --> src/grid.rs:63:5 [INFO] [stderr] | [INFO] [stderr] 63 | pub fn count_alive_neighbors_0(&self, (x, y): (u32, u32)) -> u8 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `tick_neighbor_matrix_0` [INFO] [stderr] --> src/grid.rs:95:5 [INFO] [stderr] | [INFO] [stderr] 95 | fn tick_neighbor_matrix_0(&mut self, alive_neighbor_matrix: Vec) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `count_alive_neighbors_1` [INFO] [stderr] --> src/grid.rs:118:5 [INFO] [stderr] | [INFO] [stderr] 118 | pub fn count_alive_neighbors_1(&self, (x, y): (u32, u32)) -> u8 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `wrap_x` [INFO] [stderr] --> src/grid.rs:140:5 [INFO] [stderr] | [INFO] [stderr] 140 | fn wrap_x(&self, x: u32) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `wrap_y` [INFO] [stderr] --> src/grid.rs:144:5 [INFO] [stderr] | [INFO] [stderr] 144 | fn wrap_y(&self, y: u32) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `wrap` [INFO] [stderr] --> src/grid.rs:148:5 [INFO] [stderr] | [INFO] [stderr] 148 | fn wrap(i: u32, last_index: u32) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/grid.rs:163:17 [INFO] [stderr] | [INFO] [stderr] 163 | write!(f, "{:} ", symbol); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: method is never used: `render` [INFO] [stderr] --> src/grid.rs:44:5 [INFO] [stderr] | [INFO] [stderr] 44 | pub fn render(&self) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_x_y` [INFO] [stderr] --> src/grid.rs:56:5 [INFO] [stderr] | [INFO] [stderr] 56 | pub fn get_x_y(&self, index: u32) -> (u32, u32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `count_alive_neighbors_0` [INFO] [stderr] --> src/grid.rs:63:5 [INFO] [stderr] | [INFO] [stderr] 63 | pub fn count_alive_neighbors_0(&self, (x, y): (u32, u32)) -> u8 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `tick_neighbor_matrix_0` [INFO] [stderr] --> src/grid.rs:95:5 [INFO] [stderr] | [INFO] [stderr] 95 | fn tick_neighbor_matrix_0(&mut self, alive_neighbor_matrix: Vec) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `count_alive_neighbors_1` [INFO] [stderr] --> src/grid.rs:118:5 [INFO] [stderr] | [INFO] [stderr] 118 | pub fn count_alive_neighbors_1(&self, (x, y): (u32, u32)) -> u8 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `wrap_x` [INFO] [stderr] --> src/grid.rs:140:5 [INFO] [stderr] | [INFO] [stderr] 140 | fn wrap_x(&self, x: u32) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `wrap_y` [INFO] [stderr] --> src/grid.rs:144:5 [INFO] [stderr] | [INFO] [stderr] 144 | fn wrap_y(&self, y: u32) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `wrap` [INFO] [stderr] --> src/grid.rs:148:5 [INFO] [stderr] | [INFO] [stderr] 148 | fn wrap(i: u32, last_index: u32) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/grid.rs:163:17 [INFO] [stderr] | [INFO] [stderr] 163 | write!(f, "{:} ", symbol); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 39.29s [INFO] running `"docker" "inspect" "b88dfe3df2fd07bde2912dea7a173d0f6dfcdc4859958efd5627a3ae51b296a0"` [INFO] running `"docker" "rm" "-f" "b88dfe3df2fd07bde2912dea7a173d0f6dfcdc4859958efd5627a3ae51b296a0"` [INFO] [stdout] b88dfe3df2fd07bde2912dea7a173d0f6dfcdc4859958efd5627a3ae51b296a0