[INFO] crate pixel_engine 0.0.9 is already in cache
[INFO] checking pixel_engine-0.0.9 against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] extracting crate pixel_engine 0.0.9 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate pixel_engine 0.0.9 on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pixel_engine 0.0.9
[INFO] finished tweaking crates.io crate pixel_engine 0.0.9
[INFO] tweaked toml for crates.io crate pixel_engine 0.0.9 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate pixel_engine 0.0.9 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13b4f8ca1b0eb68661113af93022b7e3633b5478d8d2b32959e29c7b562ac77c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "13b4f8ca1b0eb68661113af93022b7e3633b5478d8d2b32959e29c7b562ac77c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13b4f8ca1b0eb68661113af93022b7e3633b5478d8d2b32959e29c7b562ac77c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13b4f8ca1b0eb68661113af93022b7e3633b5478d8d2b32959e29c7b562ac77c", kill_on_drop: false }`
[INFO] [stdout] 13b4f8ca1b0eb68661113af93022b7e3633b5478d8d2b32959e29c7b562ac77c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf9b8cd04b8d4dfe7d8ff994f4f4a4b7adee2a23f14c3187f6a36289841719eb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cf9b8cd04b8d4dfe7d8ff994f4f4a4b7adee2a23f14c3187f6a36289841719eb", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling sdl2 v0.32.2
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling sdl2-sys v0.32.6
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking pixel_engine v0.0.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:424:9
[INFO] [stdout]     |
[INFO] [stdout] 424 |         ((num/* - 1*/) * self.px_size as i32)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:424:9
[INFO] [stdout]     |
[INFO] [stdout] 424 |         ((num/* - 1*/) * self.px_size as i32)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ray_angle` is never read
[INFO] [stdout]   --> examples/fps.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let mut ray_angle = 0_f64;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `wall_distance` is never read
[INFO] [stdout]   --> examples/fps.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let mut wall_distance = 0_f64;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `stepsize` is never read
[INFO] [stdout]   --> examples/fps.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let mut stepsize = 0.1_f64;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `hit_wall` is never read
[INFO] [stdout]   --> examples/fps.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |     let mut hit_wall = false;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `boundry` is never read
[INFO] [stdout]   --> examples/fps.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let mut boundry = false;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `eye_x` is never read
[INFO] [stdout]   --> examples/fps.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |     let mut eye_x = 0_f64;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `eye_y` is never read
[INFO] [stdout]   --> examples/fps.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |     let mut eye_y = 0_f64;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `test_x` is never read
[INFO] [stdout]   --> examples/fps.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |     let mut test_x = 0_i64;
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `n_neighbour` is never read
[INFO] [stdout]   --> examples/maze.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut n_neighbour: Option<Cell> = None;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `test_y` is never read
[INFO] [stdout]   --> examples/fps.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let mut test_y = 0_i64;
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `vx` is never read
[INFO] [stdout]   --> examples/fps.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let mut vx = 0_f64;
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `s_neighbour` is never read
[INFO] [stdout]   --> examples/maze.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let mut s_neighbour: Option<Cell> = None;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `vy` is never read
[INFO] [stdout]   --> examples/fps.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |     let mut vy = 0_f64;
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `w_neighbour` is never read
[INFO] [stdout]   --> examples/maze.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let mut w_neighbour: Option<Cell> = None;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `d` is never read
[INFO] [stdout]    --> examples/fps.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |     let mut d = 0_f64;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `e_neighbour` is never read
[INFO] [stdout]   --> examples/maze.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let mut e_neighbour: Option<Cell> = None;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `dot` is never read
[INFO] [stdout]    --> examples/fps.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 101 |     let mut dot = 0_f64;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `nextpos` is never read
[INFO] [stdout]   --> examples/maze.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let mut nextpos: &Dir = &Dir::None;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `bound` is never read
[INFO] [stdout]    --> examples/fps.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |     let mut bound = 0_f64;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> examples/maze.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let mut x: i32 = 0;
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ceiling` is never read
[INFO] [stdout]    --> examples/fps.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |     let mut ceiling = 0;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `y` is never read
[INFO] [stdout]   --> examples/maze.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let mut y: i32 = 0;
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `floor` is never read
[INFO] [stdout]    --> examples/fps.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let mut floor = 0;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `col` is never read
[INFO] [stdout]    --> examples/fps.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let mut col = engine::Color::BLACK;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `b` is never read
[INFO] [stdout]    --> examples/fps.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |     let mut b = 0_f64;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `col` is never read
[INFO] [stdout]    --> examples/fps.rs:205:13
[INFO] [stdout]     |
[INFO] [stdout] 205 |             col = engine::Color::BLACK;
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/fps.rs:64:13
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let mut reader = std::io::BufReader::new(file); 
[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: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.35s
[INFO] running `Command { std: "docker" "inspect" "cf9b8cd04b8d4dfe7d8ff994f4f4a4b7adee2a23f14c3187f6a36289841719eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf9b8cd04b8d4dfe7d8ff994f4f4a4b7adee2a23f14c3187f6a36289841719eb", kill_on_drop: false }`
[INFO] [stdout] cf9b8cd04b8d4dfe7d8ff994f4f4a4b7adee2a23f14c3187f6a36289841719eb