[INFO] cloning repository https://github.com/D4nte/gameoflife
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/D4nte/gameoflife" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FD4nte%2Fgameoflife", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FD4nte%2Fgameoflife'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 21a8357704e7fe8c86e6d3b3198935c3e7495d9a
[INFO] checking D4nte/gameoflife against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FD4nte%2Fgameoflife" "/workspace/builds/worker-115/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-115/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/D4nte/gameoflife on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/D4nte/gameoflife
[INFO] finished tweaking git repo https://github.com/D4nte/gameoflife
[INFO] tweaked toml for git repo https://github.com/D4nte/gameoflife written to /workspace/builds/worker-115/source/Cargo.toml
[INFO] crate git repo https://github.com/D4nte/gameoflife already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 011c01d9c942db19669b96571d5c87f6313f4aa1b2f4be8786fb30149283fd45
[INFO] running `Command { std: "docker" "start" "-a" "011c01d9c942db19669b96571d5c87f6313f4aa1b2f4be8786fb30149283fd45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "011c01d9c942db19669b96571d5c87f6313f4aa1b2f4be8786fb30149283fd45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "011c01d9c942db19669b96571d5c87f6313f4aa1b2f4be8786fb30149283fd45", kill_on_drop: false }`
[INFO] [stdout] 011c01d9c942db19669b96571d5c87f6313f4aa1b2f4be8786fb30149283fd45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fff89950bcb40455fd66ea1da9521e69471d2cc3aaefb77ba548ed1b85f5360e
[INFO] running `Command { std: "docker" "start" "-a" "fff89950bcb40455fd66ea1da9521e69471d2cc3aaefb77ba548ed1b85f5360e", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling anyhow v1.0.37
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking gameoflife v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stdout] warning: variant is never constructed: `Populated`
[INFO] [stdout]   --> src/game.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Populated,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `populated`
[INFO] [stdout]   --> src/game.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn populated() -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_empty`
[INFO] [stdout]   --> src/game.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn is_empty(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_populated`
[INFO] [stdout]   --> src/game.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn is_populated(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `die`
[INFO] [stdout]   --> src/game.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn die(&mut self) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `spawn`
[INFO] [stdout]   --> src/game.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn spawn(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Grid`
[INFO] [stdout]   --> src/game.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | struct Grid {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/game.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn new(column: u16) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `usize`
[INFO] [stdout]   --> src/game.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn usize(&self) -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `try_sub`
[INFO] [stdout]   --> src/game.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn try_sub(self, rh: u16) -> Option<Self> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/game.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn new(row: u16) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `usize`
[INFO] [stdout]   --> src/game.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn usize(&self) -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `try_sub`
[INFO] [stdout]   --> src/game.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn try_sub(self, rh: u16) -> Option<Self> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/game.rs:120:8
[INFO] [stdout]     |
[INFO] [stdout] 120 |     fn new(column: Column, row: Row) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `neighbours`
[INFO] [stdout]    --> src/game.rs:131:8
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn neighbours(&self) -> Vec<Coordinates> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/game.rs:157:8
[INFO] [stdout]     |
[INFO] [stdout] 157 |     fn new(columns: Column, rows: Row) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cell`
[INFO] [stdout]    --> src/game.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn cell(&self, column_index: Column, row_index: Row) -> Option<Cell> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `populate`
[INFO] [stdout]    --> src/game.rs:169:8
[INFO] [stdout]     |
[INFO] [stdout] 169 |     fn populate(&mut self, column_index: Column, row_index: Row) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `neighbour_cells`
[INFO] [stdout]    --> src/game.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn neighbour_cells(&self, column_index: Column, row_index: Row) -> Vec<Cell> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]    --> src/game.rs:195:8
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn next(&mut self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking proptest v0.10.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.42s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking gameoflife v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: variant is never constructed: `Populated`
[INFO] [stdout]   --> src/game.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Populated,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `populated`
[INFO] [stdout]   --> src/game.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn populated() -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_empty`
[INFO] [stdout]   --> src/game.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn is_empty(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_populated`
[INFO] [stdout]   --> src/game.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn is_populated(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `die`
[INFO] [stdout]   --> src/game.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn die(&mut self) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `spawn`
[INFO] [stdout]   --> src/game.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn spawn(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Grid`
[INFO] [stdout]   --> src/game.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | struct Grid {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/game.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn new(column: u16) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `usize`
[INFO] [stdout]   --> src/game.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn usize(&self) -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `try_sub`
[INFO] [stdout]   --> src/game.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn try_sub(self, rh: u16) -> Option<Self> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/game.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn new(row: u16) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `usize`
[INFO] [stdout]   --> src/game.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn usize(&self) -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `try_sub`
[INFO] [stdout]   --> src/game.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 |     fn try_sub(self, rh: u16) -> Option<Self> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/game.rs:120:8
[INFO] [stdout]     |
[INFO] [stdout] 120 |     fn new(column: Column, row: Row) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `neighbours`
[INFO] [stdout]    --> src/game.rs:131:8
[INFO] [stdout]     |
[INFO] [stdout] 131 |     fn neighbours(&self) -> Vec<Coordinates> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/game.rs:157:8
[INFO] [stdout]     |
[INFO] [stdout] 157 |     fn new(columns: Column, rows: Row) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cell`
[INFO] [stdout]    --> src/game.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn cell(&self, column_index: Column, row_index: Row) -> Option<Cell> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `populate`
[INFO] [stdout]    --> src/game.rs:169:8
[INFO] [stdout]     |
[INFO] [stdout] 169 |     fn populate(&mut self, column_index: Column, row_index: Row) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `neighbour_cells`
[INFO] [stdout]    --> src/game.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn neighbour_cells(&self, column_index: Column, row_index: Row) -> Vec<Cell> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]    --> src/game.rs:195:8
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn next(&mut self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "fff89950bcb40455fd66ea1da9521e69471d2cc3aaefb77ba548ed1b85f5360e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fff89950bcb40455fd66ea1da9521e69471d2cc3aaefb77ba548ed1b85f5360e", kill_on_drop: false }`
[INFO] [stdout] fff89950bcb40455fd66ea1da9521e69471d2cc3aaefb77ba548ed1b85f5360e