[INFO] cloning repository https://github.com/gfreezy/maze
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gfreezy/maze" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgfreezy%2Fmaze", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgfreezy%2Fmaze'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b6ae2e80307722af49c969bbeccd4d642028e5d1
[INFO] checking gfreezy/maze against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgfreezy%2Fmaze" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/gfreezy/maze
[INFO] finished tweaking git repo https://github.com/gfreezy/maze
[INFO] tweaked toml for git repo https://github.com/gfreezy/maze written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/gfreezy/maze on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/gfreezy/maze 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dca414935360eb48775a73f81b9d700f4efceb5925a8ee46a5a05fb1f1da7742
[INFO] running `Command { std: "docker" "start" "-a" "dca414935360eb48775a73f81b9d700f4efceb5925a8ee46a5a05fb1f1da7742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dca414935360eb48775a73f81b9d700f4efceb5925a8ee46a5a05fb1f1da7742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dca414935360eb48775a73f81b9d700f4efceb5925a8ee46a5a05fb1f1da7742", kill_on_drop: false }`
[INFO] [stdout] dca414935360eb48775a73f81b9d700f4efceb5925a8ee46a5a05fb1f1da7742
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71ef36ed78c50066833b5bd13ac8499b615d1eb3387a9cf736f321f8ac1a1b95
[INFO] running `Command { std: "docker" "start" "-a" "71ef36ed78c50066833b5bd13ac8499b615d1eb3387a9cf736f321f8ac1a1b95", kill_on_drop: false }`
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[INFO] [stdout] warning: struct `Size` is never constructed
[INFO] [stdout]   --> src/main.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct Size {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `square` is never used
[INFO] [stdout]   --> src/main.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Size {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 25 |     pub fn square(x: f32) -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cell` is never read
[INFO] [stdout]   --> src/main.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct Atlases {
[INFO] [stdout]    |        ------- field in this struct
[INFO] [stdout] 38 |     cell: Handle<TextureAtlas>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `binary_tree` is never used
[INFO] [stdout]  --> src/binary_tree.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn binary_tree<T: Rng>(grid: &mut Grid, rng: &mut T) {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `unlink`, `links`, `linked`, and `neighbors` are never used
[INFO] [stdout]   --> src/grid.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Cell {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn unlink(&mut self, pos: &Position) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn links(&self) -> impl Iterator<Item = &Position> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn linked(&self, pos: &Position) -> bool {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     fn neighbors(&self) -> Vec<Position> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/grid.rs:148:8
[INFO] [stdout]     |
[INFO] [stdout]  82 | impl Grid {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 148 |     fn random_cell(&mut self) -> &mut Cell {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     fn each_cell(&self) -> impl Iterator<Item = &Cell> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     fn each_cell_do(&self, f: impl FnMut(&Cell)) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 166 |     fn each_cell_mut_do(&mut self, f: impl FnMut(&mut Cell)) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 201 |     pub fn unlink_cell(&mut self, from: Position, to: Position, bidi: bool) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 214 |     pub fn south_of_cell(&self, pos: Position) -> Option<Position> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 222 |     pub fn west_of_cell(&self, pos: Position) -> Option<Position> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 226 |     pub fn iter(&self) -> GridIter {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GridIter` is never constructed
[INFO] [stdout]    --> src/grid.rs:308:12
[INFO] [stdout]     |
[INFO] [stdout] 308 | pub struct GridIter {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/grid.rs:316:12
[INFO] [stdout]     |
[INFO] [stdout] 315 | impl GridIter {
[INFO] [stdout]     | ------------- associated function in this implementation
[INFO] [stdout] 316 |     pub fn new(rows: usize, columns: usize) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Size` is never constructed
[INFO] [stdout]   --> src/main.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct Size {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `square` is never used
[INFO] [stdout]   --> src/main.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Size {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 25 |     pub fn square(x: f32) -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cell` is never read
[INFO] [stdout]   --> src/main.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct Atlases {
[INFO] [stdout]    |        ------- field in this struct
[INFO] [stdout] 38 |     cell: Handle<TextureAtlas>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `unlink`, `links`, `linked`, and `neighbors` are never used
[INFO] [stdout]   --> src/grid.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Cell {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn unlink(&mut self, pos: &Position) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn links(&self) -> impl Iterator<Item = &Position> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn linked(&self, pos: &Position) -> bool {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     fn neighbors(&self) -> Vec<Position> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/grid.rs:148:8
[INFO] [stdout]     |
[INFO] [stdout]  82 | impl Grid {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 148 |     fn random_cell(&mut self) -> &mut Cell {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     fn each_cell(&self) -> impl Iterator<Item = &Cell> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     fn each_cell_do(&self, f: impl FnMut(&Cell)) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 166 |     fn each_cell_mut_do(&mut self, f: impl FnMut(&mut Cell)) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 201 |     pub fn unlink_cell(&mut self, from: Position, to: Position, bidi: bool) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 214 |     pub fn south_of_cell(&self, pos: Position) -> Option<Position> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 222 |     pub fn west_of_cell(&self, pos: Position) -> Option<Position> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 49.43s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wgpu-core v0.6.5
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 10`
[INFO] running `Command { std: "docker" "inspect" "71ef36ed78c50066833b5bd13ac8499b615d1eb3387a9cf736f321f8ac1a1b95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71ef36ed78c50066833b5bd13ac8499b615d1eb3387a9cf736f321f8ac1a1b95", kill_on_drop: false }`
[INFO] [stdout] 71ef36ed78c50066833b5bd13ac8499b615d1eb3387a9cf736f321f8ac1a1b95
