[INFO] updating cached repository https://github.com/Maix0/pixel_engine
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6882365807b4116ab25eef996cf46c224cb5a99a
[INFO] checking Maix0/pixel_engine against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaix0%2Fpixel_engine" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Maix0/pixel_engine on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Maix0/pixel_engine
[INFO] finished tweaking git repo https://github.com/Maix0/pixel_engine
[INFO] tweaked toml for git repo https://github.com/Maix0/pixel_engine written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: unused manifest key: dependencies.sdl2.feature
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c2e396e4450bacf352f8f5be3e02d693c251a40e523b8c35c65f35af2ac94292
[INFO] running `"docker" "start" "-a" "c2e396e4450bacf352f8f5be3e02d693c251a40e523b8c35c65f35af2ac94292"`
[INFO] [stderr] warning: unused manifest key: dependencies.sdl2.feature
[INFO] [stderr]    Compiling sdl2-sys v0.32.6
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling sdl2 v0.32.2
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking image v0.22.5
[INFO] [stderr]     Checking pixel_engine v0.0.9 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/lib.rs:488:9
[INFO] [stderr]     |
[INFO] [stderr] 488 |         ((num/* - 1*/) * self.px_size as i32)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/lib.rs:488:9
[INFO] [stderr]     |
[INFO] [stderr] 488 |         ((num/* - 1*/) * self.px_size as i32)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `rand`
[INFO] [stderr]  --> examples/maze.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | extern crate rand;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `ray_angle` is never read
[INFO] [stderr]   --> examples/fps.rs:88:13
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let mut ray_angle = 0_f64;
[INFO] [stderr]    |             ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `wall_distance` is never read
[INFO] [stderr]   --> examples/fps.rs:89:13
[INFO] [stderr]    |
[INFO] [stderr] 89 |     let mut wall_distance = 0_f64;
[INFO] [stderr]    |             ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `stepsize` is never read
[INFO] [stderr]   --> examples/fps.rs:90:13
[INFO] [stderr]    |
[INFO] [stderr] 90 |     let mut stepsize = 0.1_f64;
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `hit_wall` is never read
[INFO] [stderr]   --> examples/fps.rs:91:13
[INFO] [stderr]    |
[INFO] [stderr] 91 |     let mut hit_wall = false;
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `boundry` is never read
[INFO] [stderr]   --> examples/fps.rs:92:13
[INFO] [stderr]    |
[INFO] [stderr] 92 |     let mut boundry = false;
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `eye_x` is never read
[INFO] [stderr]   --> examples/fps.rs:93:13
[INFO] [stderr]    |
[INFO] [stderr] 93 |     let mut eye_x = 0_f64;
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `eye_y` is never read
[INFO] [stderr]   --> examples/fps.rs:94:13
[INFO] [stderr]    |
[INFO] [stderr] 94 |     let mut eye_y = 0_f64;
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `test_x` is never read
[INFO] [stderr]   --> examples/fps.rs:95:13
[INFO] [stderr]    |
[INFO] [stderr] 95 |     let mut test_x = 0_i64;
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `test_y` is never read
[INFO] [stderr]   --> examples/fps.rs:96:13
[INFO] [stderr]    |
[INFO] [stderr] 96 |     let mut test_y = 0_i64;
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `vx` is never read
[INFO] [stderr]   --> examples/fps.rs:98:13
[INFO] [stderr]    |
[INFO] [stderr] 98 |     let mut vx = 0_f64;
[INFO] [stderr]    |             ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `vy` is never read
[INFO] [stderr]   --> examples/fps.rs:99:13
[INFO] [stderr]    |
[INFO] [stderr] 99 |     let mut vy = 0_f64;
[INFO] [stderr]    |             ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `d` is never read
[INFO] [stderr]    --> examples/fps.rs:100:13
[INFO] [stderr]     |
[INFO] [stderr] 100 |     let mut d = 0_f64;
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `dot` is never read
[INFO] [stderr]    --> examples/fps.rs:101:13
[INFO] [stderr]     |
[INFO] [stderr] 101 |     let mut dot = 0_f64;
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `bound` is never read
[INFO] [stderr]    --> examples/fps.rs:102:13
[INFO] [stderr]     |
[INFO] [stderr] 102 |     let mut bound = 0_f64;
[INFO] [stderr]     |             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `ceiling` is never read
[INFO] [stderr]    --> examples/fps.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |     let mut ceiling = 0;
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `floor` is never read
[INFO] [stderr]    --> examples/fps.rs:104:13
[INFO] [stderr]     |
[INFO] [stderr] 104 |     let mut floor = 0;
[INFO] [stderr]     |             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `col` is never read
[INFO] [stderr]    --> examples/fps.rs:105:13
[INFO] [stderr]     |
[INFO] [stderr] 105 |     let mut col = engine::Color::BLACK;
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `b` is never read
[INFO] [stderr]    --> examples/fps.rs:106:13
[INFO] [stderr]     |
[INFO] [stderr] 106 |     let mut b = 0_f64;
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `col` is never read
[INFO] [stderr]    --> examples/fps.rs:205:13
[INFO] [stderr]     |
[INFO] [stderr] 205 |             col = engine::Color::BLACK;
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/fps.rs:64:13
[INFO] [stderr]    |
[INFO] [stderr] 64 |         let mut reader = std::io::BufReader::new(file); 
[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] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: could not compile `pixel_engine`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "c2e396e4450bacf352f8f5be3e02d693c251a40e523b8c35c65f35af2ac94292"`
[INFO] running `"docker" "rm" "-f" "c2e396e4450bacf352f8f5be3e02d693c251a40e523b8c35c65f35af2ac94292"`
[INFO] [stdout] c2e396e4450bacf352f8f5be3e02d693c251a40e523b8c35c65f35af2ac94292
