[INFO] cloning repository https://github.com/NiklasJonsson/tetris
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NiklasJonsson/tetris" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNiklasJonsson%2Ftetris", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNiklasJonsson%2Ftetris'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a8f28e727855faa1146a3463e4724ba2806f65b2
[INFO] checking NiklasJonsson/tetris against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNiklasJonsson%2Ftetris" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NiklasJonsson/tetris on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/NiklasJonsson/tetris
[INFO] finished tweaking git repo https://github.com/NiklasJonsson/tetris
[INFO] tweaked toml for git repo https://github.com/NiklasJonsson/tetris written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/NiklasJonsson/tetris already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pistoncore-event_loop v0.36.0
[INFO] [stderr]   Downloaded piston v0.36.0
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.45.3
[INFO] [stderr]   Downloaded rusttype v0.4.3
[INFO] [stderr]   Downloaded pistoncore-window v0.31.0
[INFO] [stderr]   Downloaded rayon v1.0.1
[INFO] [stderr]   Downloaded piston2d-graphics v0.26.0
[INFO] [stderr]   Downloaded core-graphics v0.12.4
[INFO] [stderr]   Downloaded ordered-float v0.5.0
[INFO] [stderr]   Downloaded cc v1.0.10
[INFO] [stderr]   Downloaded gleam v0.4.33
[INFO] [stderr]   Downloaded stb_truetype v0.2.2
[INFO] [stderr]   Downloaded proc-macro2 v0.3.6
[INFO] [stderr]   Downloaded cocoa v0.13.0
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.14
[INFO] [stderr]   Downloaded glutin v0.12.2
[INFO] [stderr]   Downloaded winit v0.10.0
[INFO] [stderr]   Downloaded tempfile v3.0.0
[INFO] [stderr]   Downloaded piston2d-opengl_graphics v0.52.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71544c7d0c194956955b0a4294155b19641a64cc67bf008eec1813c75c9dd799
[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" "71544c7d0c194956955b0a4294155b19641a64cc67bf008eec1813c75c9dd799", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71544c7d0c194956955b0a4294155b19641a64cc67bf008eec1813c75c9dd799", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71544c7d0c194956955b0a4294155b19641a64cc67bf008eec1813c75c9dd799", kill_on_drop: false }`
[INFO] [stdout] 71544c7d0c194956955b0a4294155b19641a64cc67bf008eec1813c75c9dd799
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c9ccfc987a6d21b9cfb8c2934de502850ced02ba446b5d24d1b3c76d1dfc579
[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" "3c9ccfc987a6d21b9cfb8c2934de502850ced02ba446b5d24d1b3c76d1dfc579", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]    Compiling cc v1.0.10
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking piston-float v0.3.0
[INFO] [stderr]     Checking token_store v0.1.2
[INFO] [stderr]     Checking remove_dir_all v0.5.0
[INFO] [stderr]     Checking shader_version v0.3.0
[INFO] [stderr]     Checking interpolation v0.1.0
[INFO] [stderr]     Checking read_color v1.0.0
[INFO] [stderr]     Checking piston-texture v0.6.0
[INFO] [stderr]     Checking piston-shaders_graphics2d v0.3.1
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]    Compiling proc-macro2 v0.3.6
[INFO] [stderr]     Checking stb_truetype v0.2.2
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]    Compiling x11-dl v2.17.5
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking piston-viewport v0.3.0
[INFO] [stderr]     Checking vecmath v0.3.1
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling quote v0.5.1
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking shared_library v0.1.8
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]    Compiling wayland-scanner v0.12.5
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling gl_generator v0.8.0
[INFO] [stderr]     Checking ordered-float v0.5.0
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]     Checking rusttype v0.4.3
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking tempfile v3.0.0
[INFO] [stderr]     Checking rayon-core v1.4.0
[INFO] [stderr]     Checking piston2d-graphics v0.26.0
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.12.5
[INFO] [stderr]    Compiling wayland-client v0.12.5
[INFO] [stderr]    Compiling wayland-protocols v0.12.5
[INFO] [stderr]     Checking rayon v1.0.1
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]    Compiling glutin v0.12.2
[INFO] [stderr]    Compiling serde_derive_internals v0.23.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.14
[INFO] [stderr]     Checking wayland-kbd v0.13.1
[INFO] [stderr]     Checking image v0.18.0
[INFO] [stderr]    Compiling serde_derive v1.0.37
[INFO] [stderr]     Checking wayland-window v0.13.3
[INFO] [stderr]     Checking winit v0.10.0
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.52.0
[INFO] [stderr]     Checking pistoncore-input v0.20.0
[INFO] [stderr]     Checking pistoncore-window v0.31.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.36.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.45.3
[INFO] [stderr]     Checking piston v0.36.0
[INFO] [stderr]     Checking tetris v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/main.rs:447:25
[INFO] [stdout]     |
[INFO] [stdout] 447 |                         std::mem::replace(&mut self.square_slots[pos.y + 1][pos.x], sq);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/main.rs:527:9
[INFO] [stdout]     |
[INFO] [stdout] 527 |         std::mem::replace(&mut self.tetromino, App::first_tetromino());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/main.rs:447:25
[INFO] [stdout]     |
[INFO] [stdout] 447 |                         std::mem::replace(&mut self.square_slots[pos.y + 1][pos.x], sq);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/main.rs:527:9
[INFO] [stdout]     |
[INFO] [stdout] 527 |         std::mem::replace(&mut self.tetromino, App::first_tetromino());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "3c9ccfc987a6d21b9cfb8c2934de502850ced02ba446b5d24d1b3c76d1dfc579", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c9ccfc987a6d21b9cfb8c2934de502850ced02ba446b5d24d1b3c76d1dfc579", kill_on_drop: false }`
[INFO] [stdout] 3c9ccfc987a6d21b9cfb8c2934de502850ced02ba446b5d24d1b3c76d1dfc579