[INFO] updating cached repository https://github.com/matharumanpreet00/rust-tetris
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] 08670b934cb52fe015130a6ff6ca50e4aeb57b40
[INFO] testing matharumanpreet00/rust-tetris against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatharumanpreet00%2Frust-tetris" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matharumanpreet00/rust-tetris on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/matharumanpreet00/rust-tetris
[INFO] finished tweaking git repo https://github.com/matharumanpreet00/rust-tetris
[INFO] tweaked toml for git repo https://github.com/matharumanpreet00/rust-tetris written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/matharumanpreet00/rust-tetris already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 66e52c81e7f9a0546531e1db9e6b6f9685afed50918849a5004f227acef8eb8d
[INFO] running `"docker" "start" "-a" "66e52c81e7f9a0546531e1db9e6b6f9685afed50918849a5004f227acef8eb8d"`
[INFO] [stderr]    Compiling sdl2-sys v0.32.1 (https://github.com/Rust-SDL2/rust-sdl2#cfced74f)
[INFO] [stderr]    Compiling sdl2 v0.32.0-beta.2 (https://github.com/Rust-SDL2/rust-sdl2#cfced74f)
[INFO] [stderr]    Compiling tetris v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(duration_as_u128)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::pixels::Color`
[INFO] [stderr]  --> src/renderer.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use sdl2::pixels::Color;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::rect::Point`
[INFO] [stderr]  --> src/renderer.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use sdl2::rect::Point;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BlendMode`, `TextureAccess`
[INFO] [stderr]  --> src/renderer.rs:4:53
[INFO] [stderr]   |
[INFO] [stderr] 4 | use sdl2::render::{Canvas, Texture, TextureCreator, TextureAccess, BlendMode};
[INFO] [stderr]   |                                                     ^^^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Game`
[INFO] [stderr]   --> src/renderer.rs:11:19
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::game::{Game,GameMap};
[INFO] [stderr]    |                   ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::prelude::*`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use rand::prelude::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BlendMode`
[INFO] [stderr]   --> src/main.rs:15:37
[INFO] [stderr]    |
[INFO] [stderr] 15 | use sdl2::render::{Canvas, Texture, BlendMode};
[INFO] [stderr]    |                                     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sdl2::Sdl`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use sdl2::Sdl;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `PieceType`, `Presence`
[INFO] [stderr]   --> src/main.rs:23:21
[INFO] [stderr]    |
[INFO] [stderr] 23 | use crate::others::{PieceType, Presence};
[INFO] [stderr]    |                     ^^^^^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `tetris`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "66e52c81e7f9a0546531e1db9e6b6f9685afed50918849a5004f227acef8eb8d"`
[INFO] running `"docker" "rm" "-f" "66e52c81e7f9a0546531e1db9e6b6f9685afed50918849a5004f227acef8eb8d"`
[INFO] [stdout] 66e52c81e7f9a0546531e1db9e6b6f9685afed50918849a5004f227acef8eb8d