[INFO] cloning repository https://github.com/Cyphle/kata-game-of-life-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Cyphle/kata-game-of-life-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCyphle%2Fkata-game-of-life-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCyphle%2Fkata-game-of-life-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0ba7c8a633b4c3eda27f82d75a1b6431460a863a [INFO] building Cyphle/kata-game-of-life-rs against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCyphle%2Fkata-game-of-life-rs" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Cyphle/kata-game-of-life-rs on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Cyphle/kata-game-of-life-rs [INFO] finished tweaking git repo https://github.com/Cyphle/kata-game-of-life-rs [INFO] tweaked toml for git repo https://github.com/Cyphle/kata-game-of-life-rs written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Cyphle/kata-game-of-life-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fc8539515d72df238e748a9bfaeabec39a1e6206b370501b2497c1ae068e2a84 [INFO] running `Command { std: "docker" "start" "-a" "fc8539515d72df238e748a9bfaeabec39a1e6206b370501b2497c1ae068e2a84", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fc8539515d72df238e748a9bfaeabec39a1e6206b370501b2497c1ae068e2a84", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fc8539515d72df238e748a9bfaeabec39a1e6206b370501b2497c1ae068e2a84", kill_on_drop: false }` [INFO] [stdout] fc8539515d72df238e748a9bfaeabec39a1e6206b370501b2497c1ae068e2a84 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b8877f9759aa8b667e4c0226855e02b96bedb380629f62193450863902e042de [INFO] running `Command { std: "docker" "start" "-a" "b8877f9759aa8b667e4c0226855e02b96bedb380629f62193450863902e042de", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.155 [INFO] [stderr] Compiling getrandom v0.2.15 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling kata-game-of-life-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/nopointer/universe.rs:261:21 [INFO] [stdout] | [INFO] [stdout] 261 | let mut cell = match states.get(y) { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cell` [INFO] [stdout] --> src/smartpointers/cell.rs:115:20 [INFO] [stdout] | [INFO] [stdout] 115 | .map(|(cell, position)| position.print()) [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_cell` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `x` and `y` are never read [INFO] [stdout] --> src/nopointer/universe.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 10 | struct CellPosition { [INFO] [stdout] | ------------ fields in this struct [INFO] [stdout] 11 | x: usize, [INFO] [stdout] | ^ [INFO] [stdout] 12 | y: usize, [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `CellPosition` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `count_neighbours_of`, `neighbours_positions_of`, `print_check`, and `new_from_states` are never used [INFO] [stdout] --> src/nopointer/universe.rs:116:8 [INFO] [stdout] | [INFO] [stdout] 23 | impl Universe { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 116 | fn count_neighbours_of(&self, x: usize, y: usize) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 146 | fn neighbours_positions_of(&self, x: usize, y: usize) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 194 | fn print_check(&self) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 234 | pub fn new_from_states(states: &Vec<&str>) -> Universe { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `print` is never used [INFO] [stdout] --> src/common/relative_position.rs:44:12 [INFO] [stdout] | [INFO] [stdout] 14 | impl RelativePosition { [INFO] [stdout] | --------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 44 | pub fn print(&self) -> String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `is_dead`, `number_of_neighbours`, `new_alive`, `new_dead`, `print_neighbours_count`, and `print_neighbours_positions` are never used [INFO] [stdout] --> src/smartpointers/cell.rs:22:12 [INFO] [stdout] | [INFO] [stdout] 14 | impl Cell { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 22 | pub fn is_dead(&self) -> bool { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 32 | pub fn number_of_neighbours(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 84 | pub fn new_alive() -> Cell { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 92 | pub fn new_dead() -> Cell { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 108 | pub fn print_neighbours_count(&self) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 112 | pub fn print_neighbours_positions(&self) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `print_check` is never used [INFO] [stdout] --> src/smartpointers/universe.rs:100:8 [INFO] [stdout] | [INFO] [stdout] 26 | impl Universe { [INFO] [stdout] | ------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 100 | fn print_check(&self) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.72s [INFO] running `Command { std: "docker" "inspect" "b8877f9759aa8b667e4c0226855e02b96bedb380629f62193450863902e042de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b8877f9759aa8b667e4c0226855e02b96bedb380629f62193450863902e042de", kill_on_drop: false }` [INFO] [stdout] b8877f9759aa8b667e4c0226855e02b96bedb380629f62193450863902e042de [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3587e1145f41f6f5cb95c34e80b3ca01bf41f7520baa827cade1379164c1b978 [INFO] running `Command { std: "docker" "start" "-a" "3587e1145f41f6f5cb95c34e80b3ca01bf41f7520baa827cade1379164c1b978", kill_on_drop: false }` [INFO] [stderr] Compiling kata-game-of-life-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/nopointer/universe.rs:261:21 [INFO] [stdout] | [INFO] [stdout] 261 | let mut cell = match states.get(y) { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/nopointer/universe.rs:438:13 [INFO] [stdout] | [INFO] [stdout] 438 | for x in 0..=number_of_ticks { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cell` [INFO] [stdout] --> src/smartpointers/cell.rs:115:20 [INFO] [stdout] | [INFO] [stdout] 115 | .map(|(cell, position)| position.print()) [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_cell` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/smartpointers/universe.rs:285:13 [INFO] [stdout] | [INFO] [stdout] 285 | for x in 0..=number_of_ticks { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `is_dead` is never used [INFO] [stdout] --> src/smartpointers/cell.rs:22:12 [INFO] [stdout] | [INFO] [stdout] 14 | impl Cell { [INFO] [stdout] | --------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 22 | pub fn is_dead(&self) -> bool { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.53s [INFO] running `Command { std: "docker" "inspect" "3587e1145f41f6f5cb95c34e80b3ca01bf41f7520baa827cade1379164c1b978", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3587e1145f41f6f5cb95c34e80b3ca01bf41f7520baa827cade1379164c1b978", kill_on_drop: false }` [INFO] [stdout] 3587e1145f41f6f5cb95c34e80b3ca01bf41f7520baa827cade1379164c1b978