[INFO] cloning repository https://github.com/cptroot/tetris-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cptroot/tetris-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcptroot%2Ftetris-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcptroot%2Ftetris-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 570fa57f9e398b01ca6ff9c22d65a4158df41984
[INFO] checking cptroot/tetris-rs against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcptroot%2Ftetris-rs" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cptroot/tetris-rs on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cptroot/tetris-rs
[INFO] finished tweaking git repo https://github.com/cptroot/tetris-rs
[INFO] tweaked toml for git repo https://github.com/cptroot/tetris-rs written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/cptroot/tetris-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-9/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7db8423d3564069afe053de514707c46c457a0cdfffe88d6ae5feddc389cc324
[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" "7db8423d3564069afe053de514707c46c457a0cdfffe88d6ae5feddc389cc324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7db8423d3564069afe053de514707c46c457a0cdfffe88d6ae5feddc389cc324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7db8423d3564069afe053de514707c46c457a0cdfffe88d6ae5feddc389cc324", kill_on_drop: false }`
[INFO] [stdout] 7db8423d3564069afe053de514707c46c457a0cdfffe88d6ae5feddc389cc324
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8cfe4337a595f99b360c29c5dc4beb6525813de1f166a72deaf48ed8f7d27ae9
[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" "8cfe4337a595f99b360c29c5dc4beb6525813de1f166a72deaf48ed8f7d27ae9", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling dtoa v0.4.7
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling khronos_api v1.0.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking piston-float v0.2.0
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling khronos_api v2.2.0
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking bitflags v0.6.0
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking shader_version v0.2.2
[INFO] [stderr]     Checking inflate v0.1.1
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking piston-texture v0.5.0
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking interpolation v0.1.0
[INFO] [stderr]     Checking read_color v0.1.0
[INFO] [stderr]     Checking piston-shaders_graphics2d v0.2.1
[INFO] [stderr]    Compiling xml-rs v0.3.6
[INFO] [stderr]     Checking piston-viewport v0.2.0
[INFO] [stderr]     Checking vecmath v0.2.0
[INFO] [stderr]    Compiling xml-rs v0.6.1
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]     Checking draw_state v0.6.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]     Checking pistoncore-input v0.14.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking piston2d-graphics v0.17.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking gfx_core v0.4.0
[INFO] [stderr]    Compiling wayland-scanner v0.5.11
[INFO] [stderr]     Checking pistoncore-window v0.22.1
[INFO] [stderr]    Compiling gl_generator v0.5.5
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking fs2 v0.2.5
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking memmap v0.2.3
[INFO] [stderr]    Compiling gl_generator v0.6.1
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking stb_truetype v0.2.8
[INFO] [stderr]     Checking pistoncore-event_loop v0.25.1
[INFO] [stderr]     Checking rusttype v0.2.4
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking piston v0.25.1
[INFO] [stderr]    Compiling wayland-client v0.5.12
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]     Checking tempfile v2.2.0
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling glutin v0.6.2
[INFO] [stderr]    Compiling gfx_gl v0.3.1
[INFO] [stderr]     Checking gfx v0.12.2
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]     Checking png v0.5.2
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking image v0.10.4
[INFO] [stderr]     Checking gfx_device_gl v0.11.2
[INFO] [stderr]     Checking piston-gfx_texture v0.17.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.31.2
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]     Checking dlib v0.3.1
[INFO] [stderr]     Checking wayland-sys v0.5.11
[INFO] [stderr]     Checking wayland-kbd v0.3.6
[INFO] [stderr]     Checking wayland-window v0.2.3
[INFO] [stderr]     Checking pistoncore-glutin_window v0.29.0
[INFO] [stderr]     Checking piston_window v0.52.0
[INFO] [stderr]     Checking tetris v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `piston_window::clear`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use piston_window::clear;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `piston_window::clear`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use piston_window::clear;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rotation`
[INFO] [stdout]   --> src/main.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 let rotation = 0;
[INFO] [stdout]    |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rotation`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]   --> src/main.rs:40:21
[INFO] [stdout]    |
[INFO] [stdout] 40 |         if let Some(r) = e.render_args() {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut x = 4.0;
[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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rotation`
[INFO] [stdout]   --> src/main.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 let rotation = 0;
[INFO] [stdout]    |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rotation`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]   --> src/main.rs:40:21
[INFO] [stdout]    |
[INFO] [stdout] 40 |         if let Some(r) = e.render_args() {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut x = 4.0;
[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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 19s
[INFO] running `Command { std: "docker" "inspect" "8cfe4337a595f99b360c29c5dc4beb6525813de1f166a72deaf48ed8f7d27ae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cfe4337a595f99b360c29c5dc4beb6525813de1f166a72deaf48ed8f7d27ae9", kill_on_drop: false }`
[INFO] [stdout] 8cfe4337a595f99b360c29c5dc4beb6525813de1f166a72deaf48ed8f7d27ae9