[INFO] updating cached repository joek13/craft
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/joek13/craft
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/joek13/craft" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/joek13/craft"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/joek13/craft'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/joek13/craft" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/joek13/craft"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/joek13/craft'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 45879c4cbb733c9a0cd3f21e959c97cc59d3874d
[INFO] sha for GitHub repo joek13/craft: 45879c4cbb733c9a0cd3f21e959c97cc59d3874d
[INFO] validating manifest of joek13/craft on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of joek13/craft on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing joek13/craft
[INFO] finished frobbing joek13/craft
[INFO] frobbed toml for joek13/craft written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/joek13/craft/Cargo.toml
[INFO] started frobbing joek13/craft
[INFO] finished frobbing joek13/craft
[INFO] frobbed toml for joek13/craft written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/joek13/craft/Cargo.toml
[INFO] crate joek13/craft has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking joek13/craft against master#f66e4697ae286985ddefc53c3a047614568458bb for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-1/master#f66e4697ae286985ddefc53c3a047614568458bb:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/joek13/craft:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 79cb18844dac7015069520b12e4ec97be7449b13bc9eb3e9d7af6bfea1d4c4d3
[INFO] running `"docker" "start" "-a" "79cb18844dac7015069520b12e4ec97be7449b13bc9eb3e9d7af6bfea1d4c4d3"`
[INFO] [stderr]     Checking memmap v0.6.1
[INFO] [stderr]    Compiling wayland-scanner v0.12.4
[INFO] [stderr]     Checking wayland-sys v0.12.4
[INFO] [stderr]    Compiling glutin v0.11.0
[INFO] [stderr]    Compiling glium v0.19.0
[INFO] [stderr]     Checking wayland-sys v0.9.10
[INFO] [stderr]     Checking wayland-client v0.9.10
[INFO] [stderr]    Compiling wayland-client v0.12.4
[INFO] [stderr]    Compiling wayland-protocols v0.12.4
[INFO] [stderr]     Checking wayland-kbd v0.13.0
[INFO] [stderr]     Checking wayland-window v0.13.2
[INFO] [stderr]     Checking winit v0.9.0
[INFO] [stderr]     Checking craft v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let mut world = World::new(&display);
[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: field is never used: `vertices`
[INFO] [stderr]   --> src/world.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     vertices: VertexBuffer<Vertex>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_block`
[INFO] [stderr]   --> src/world.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn get_block(&self, x: usize, y: usize, z: usize) -> Block {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `update_vertices`
[INFO] [stderr]   --> src/world.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn update_vertices(&mut self) {}
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `BLOCK_COLORS`
[INFO] [stderr]   --> src/world.rs:64:1
[INFO] [stderr]    |
[INFO] [stderr] 64 | / const BLOCK_COLORS: [(f32, f32, f32, f32); 3] = [
[INFO] [stderr] 65 | |     (0.0, 0.0, 0.0, 0.0),
[INFO] [stderr] 66 | |     (0.0, 0.0, 0.0, 1.0),
[INFO] [stderr] 67 | |     (0.0, 1.0, 0.0, 1.0),
[INFO] [stderr] 68 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |         target.finish();
[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] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let mut world = World::new(&display);
[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: field is never used: `vertices`
[INFO] [stderr]   --> src/world.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     vertices: VertexBuffer<Vertex>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_block`
[INFO] [stderr]   --> src/world.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn get_block(&self, x: usize, y: usize, z: usize) -> Block {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `update_vertices`
[INFO] [stderr]   --> src/world.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn update_vertices(&mut self) {}
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `BLOCK_COLORS`
[INFO] [stderr]   --> src/world.rs:64:1
[INFO] [stderr]    |
[INFO] [stderr] 64 | / const BLOCK_COLORS: [(f32, f32, f32, f32); 3] = [
[INFO] [stderr] 65 | |     (0.0, 0.0, 0.0, 0.0),
[INFO] [stderr] 66 | |     (0.0, 0.0, 0.0, 1.0),
[INFO] [stderr] 67 | |     (0.0, 1.0, 0.0, 1.0),
[INFO] [stderr] 68 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |         target.finish();
[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] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.31s
[INFO] running `"docker" "inspect" "79cb18844dac7015069520b12e4ec97be7449b13bc9eb3e9d7af6bfea1d4c4d3"`
[INFO] running `"docker" "rm" "-f" "79cb18844dac7015069520b12e4ec97be7449b13bc9eb3e9d7af6bfea1d4c4d3"`
[INFO] [stdout] 79cb18844dac7015069520b12e4ec97be7449b13bc9eb3e9d7af6bfea1d4c4d3