[INFO] cloning repository https://github.com/amarao/piston_play
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/amarao/piston_play" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famarao%2Fpiston_play", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famarao%2Fpiston_play'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5f22afca14a0ed0c441b4e8510c9a22807967bf2
[INFO] checking amarao/piston_play against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famarao%2Fpiston_play" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amarao/piston_play on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/amarao/piston_play
[INFO] finished tweaking git repo https://github.com/amarao/piston_play
[INFO] tweaked toml for git repo https://github.com/amarao/piston_play written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/amarao/piston_play already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04d2e1b3af7ba18f6e5c1f04b568974aa933344cbc02abefb6a9eda665f74008
[INFO] running `Command { std: "docker" "start" "-a" "04d2e1b3af7ba18f6e5c1f04b568974aa933344cbc02abefb6a9eda665f74008", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04d2e1b3af7ba18f6e5c1f04b568974aa933344cbc02abefb6a9eda665f74008", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04d2e1b3af7ba18f6e5c1f04b568974aa933344cbc02abefb6a9eda665f74008", kill_on_drop: false }`
[INFO] [stdout] 04d2e1b3af7ba18f6e5c1f04b568974aa933344cbc02abefb6a9eda665f74008
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ddd05fcdec45b52392d33438d7445ca9386b6ce8a57474d75951a118b7126e3d
[INFO] running `Command { std: "docker" "start" "-a" "ddd05fcdec45b52392d33438d7445ca9386b6ce8a57474d75951a118b7126e3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libloading v0.6.3
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]    Compiling rayon-core v1.8.0
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking bytemuck v1.4.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling rayon v1.4.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]     Checking libc v0.2.77
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking byteorder v1.3.4
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking gfx_core v0.9.2
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking tiff v0.5.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling gfx_gl v0.6.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]    Compiling wayland-client v0.21.13
[INFO] [stderr]    Compiling wayland-protocols v0.21.13
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking piston2d-graphics v0.37.0
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking gfx v0.18.2
[INFO] [stderr]     Checking wayland-commons v0.21.13
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking image v0.23.9
[INFO] [stderr]     Checking gfx_device_gl v0.16.2
[INFO] [stderr]     Checking piston-gfx_texture v0.41.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.70.0
[INFO] [stderr]     Checking pistoncore-input v1.0.0
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.6
[INFO] [stderr]     Checking pistoncore-window v0.47.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.52.0
[INFO] [stderr]     Checking piston v0.52.0
[INFO] [stderr]     Checking winit v0.19.5
[INFO] [stderr]     Checking glutin v0.21.2
[INFO] [stderr]     Checking pistoncore-glutin_window v0.66.0
[INFO] [stderr]     Checking piston_window v0.112.0
[INFO] [stderr]     Checking piston_play v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Sender`
[INFO] [stdout]  --> src/main.rs:7:35
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::sync::mpsc::{SyncSender, Sender, Receiver, TryRecvError};
[INFO] [stdout]   |                                   ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sender`
[INFO] [stdout]  --> src/main.rs:7:35
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::sync::mpsc::{SyncSender, Sender, Receiver, TryRecvError};
[INFO] [stdout]   |                                   ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `seed`
[INFO] [stdout]    --> src/main.rs:211:13
[INFO] [stdout]     |
[INFO] [stdout] 211 |     let mut seed: u64 = rng.gen_range(0, 2<<30);
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_seed`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `seed`
[INFO] [stdout]    --> src/main.rs:211:13
[INFO] [stdout]     |
[INFO] [stdout] 211 |     let mut seed: u64 = rng.gen_range(0, 2<<30);
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_seed`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:211:9
[INFO] [stdout]     |
[INFO] [stdout] 211 |     let mut seed: u64 = rng.gen_range(0, 2<<30);
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:211:9
[INFO] [stdout]     |
[INFO] [stdout] 211 |     let mut seed: u64 = rng.gen_range(0, 2<<30);
[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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.42s
[INFO] running `Command { std: "docker" "inspect" "ddd05fcdec45b52392d33438d7445ca9386b6ce8a57474d75951a118b7126e3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddd05fcdec45b52392d33438d7445ca9386b6ce8a57474d75951a118b7126e3d", kill_on_drop: false }`
[INFO] [stdout] ddd05fcdec45b52392d33438d7445ca9386b6ce8a57474d75951a118b7126e3d