[INFO] cloning repository https://github.com/ThersVV/Rust-Game-of-Life [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ThersVV/Rust-Game-of-Life" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThersVV%2FRust-Game-of-Life", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThersVV%2FRust-Game-of-Life'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9025a7832ed3ceabbc30fbec70b06bb008409c6d [INFO] checking ThersVV/Rust-Game-of-Life against master#8424f8e8cdf07010967a57584fd647b30e930d4d for pr-120095 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThersVV%2FRust-Game-of-Life" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ThersVV/Rust-Game-of-Life on toolchain 8424f8e8cdf07010967a57584fd647b30e930d4d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8424f8e8cdf07010967a57584fd647b30e930d4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ThersVV/Rust-Game-of-Life [INFO] finished tweaking git repo https://github.com/ThersVV/Rust-Game-of-Life [INFO] tweaked toml for git repo https://github.com/ThersVV/Rust-Game-of-Life written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/ThersVV/Rust-Game-of-Life already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8424f8e8cdf07010967a57584fd647b30e930d4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking ThersVV/Rust-Game-of-Life against try#047472f299946caf090d1b5608ae4bd9f0416256+rustflags=-Ddereferencing_mut_binding for pr-120095 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FThersVV%2FRust-Game-of-Life" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ThersVV/Rust-Game-of-Life on toolchain 047472f299946caf090d1b5608ae4bd9f0416256 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+047472f299946caf090d1b5608ae4bd9f0416256" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ThersVV/Rust-Game-of-Life [INFO] finished tweaking git repo https://github.com/ThersVV/Rust-Game-of-Life [INFO] tweaked toml for git repo https://github.com/ThersVV/Rust-Game-of-Life written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/ThersVV/Rust-Game-of-Life already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+047472f299946caf090d1b5608ae4bd9f0416256" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded piston2d-graphics v0.42.0 [INFO] [stderr] Downloaded pistoncore-sdl2_window v0.68.0 [INFO] [stderr] Downloaded piston-texture v0.8.0 [INFO] [stderr] Downloaded piston v0.53.1 [INFO] [stderr] Downloaded piston2d-opengl_graphics v0.80.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+047472f299946caf090d1b5608ae4bd9f0416256" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 958fc98d2bd7e9c5adfbb9b00b946e840ad6115cc877cb16cab290d1cfc3c4e9 [INFO] running `Command { std: "docker" "start" "-a" "958fc98d2bd7e9c5adfbb9b00b946e840ad6115cc877cb16cab290d1cfc3c4e9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "958fc98d2bd7e9c5adfbb9b00b946e840ad6115cc877cb16cab290d1cfc3c4e9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "958fc98d2bd7e9c5adfbb9b00b946e840ad6115cc877cb16cab290d1cfc3c4e9", kill_on_drop: false }` [INFO] [stdout] 958fc98d2bd7e9c5adfbb9b00b946e840ad6115cc877cb16cab290d1cfc3c4e9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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 -Ddereferencing_mut_binding" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+047472f299946caf090d1b5608ae4bd9f0416256" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 48acdc0d7fff43d7750ab8ceee0a5e7c6f385a017d7ae64cee0bf328cf6236cc [INFO] running `Command { std: "docker" "start" "-a" "48acdc0d7fff43d7750ab8ceee0a5e7c6f385a017d7ae64cee0bf328cf6236cc", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.124 [INFO] [stderr] Compiling crossbeam-utils v0.8.8 [INFO] [stderr] Compiling proc-macro2 v1.0.37 [INFO] [stderr] Compiling crossbeam-epoch v0.9.8 [INFO] [stderr] Checking piston-float v1.0.1 [INFO] [stderr] Compiling log v0.4.16 [INFO] [stderr] Compiling rayon-core v1.9.2 [INFO] [stderr] Compiling syn v1.0.91 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling rayon v1.5.2 [INFO] [stderr] Compiling version-compare v0.1.0 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling xml-rs v0.8.4 [INFO] [stderr] Checking piston-graphics_api_version v1.0.1 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling crc32fast v1.3.2 [INFO] [stderr] Checking piston-viewport v1.0.2 [INFO] [stderr] Checking adler32 v1.2.0 [INFO] [stderr] Checking adler v1.0.2 [INFO] [stderr] Checking ttf-parser v0.6.2 [INFO] [stderr] Checking weezl v0.1.6 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking miniz_oxide v0.3.7 [INFO] [stderr] Compiling sdl2-sys v0.35.2 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling num-rational v0.3.2 [INFO] [stderr] Checking color_quant v1.1.0 [INFO] [stderr] Checking deflate v0.8.6 [INFO] [stderr] Checking ab_glyph_rasterizer v0.1.5 [INFO] [stderr] Compiling sdl2 v0.35.2 [INFO] [stderr] Checking shader_version v0.7.0 [INFO] [stderr] Compiling gl_generator v0.13.1 [INFO] [stderr] Checking gif v0.11.3 [INFO] [stderr] Checking vecmath v1.0.0 [INFO] [stderr] Checking read_color v1.0.0 [INFO] [stderr] Checking crossbeam-channel v0.5.4 [INFO] [stderr] Checking bytemuck v1.9.1 [INFO] [stderr] Checking interpolation v0.2.0 [INFO] [stderr] Checking spin_sleep v1.1.1 [INFO] [stderr] Checking piston-texture v0.8.0 [INFO] [stderr] Checking piston-shaders_graphics2d v0.4.0 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Checking png v0.16.8 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking owned_ttf_parser v0.6.0 [INFO] [stderr] Checking rusttype v0.9.2 [INFO] [stderr] Compiling gl v0.13.0 [INFO] [stderr] Checking piston2d-graphics v0.42.0 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Checking jpeg-decoder v0.1.22 [INFO] [stderr] Checking tiff v0.6.1 [INFO] [stderr] Checking image v0.23.14 [INFO] [stderr] Checking pistoncore-input v1.0.1 [INFO] [stderr] Checking piston2d-opengl_graphics v0.80.0 [INFO] [stderr] Checking pistoncore-window v0.47.1 [INFO] [stderr] Checking pistoncore-event_loop v0.53.1 [INFO] [stderr] Checking pistoncore-sdl2_window v0.68.0 [INFO] [stderr] Checking piston v0.53.1 [INFO] [stderr] Checking gol v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:162:29 [INFO] [stdout] | [INFO] [stdout] 162 | ... &grid_copy.insert(cords.clone(), Life::Alive); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 162 | let _ = &grid_copy.insert(cords.clone(), Life::Alive); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:164:29 [INFO] [stdout] | [INFO] [stdout] 164 | ... &grid_copy.remove(cords); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 164 | let _ = &grid_copy.remove(cords); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:166:29 [INFO] [stdout] | [INFO] [stdout] 166 | ... &grid_copy.insert(cords.clone(), Life::Dead); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 166 | let _ = &grid_copy.insert(cords.clone(), Life::Dead); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:162:29 [INFO] [stdout] | [INFO] [stdout] 162 | ... &grid_copy.insert(cords.clone(), Life::Alive); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 162 | let _ = &grid_copy.insert(cords.clone(), Life::Alive); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:164:29 [INFO] [stdout] | [INFO] [stdout] 164 | ... &grid_copy.remove(cords); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 164 | let _ = &grid_copy.remove(cords); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:166:29 [INFO] [stdout] | [INFO] [stdout] 166 | ... &grid_copy.insert(cords.clone(), Life::Dead); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 166 | let _ = &grid_copy.insert(cords.clone(), Life::Dead); [INFO] [stdout] | +++++++ [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 8.38s [INFO] running `Command { std: "docker" "inspect" "48acdc0d7fff43d7750ab8ceee0a5e7c6f385a017d7ae64cee0bf328cf6236cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "48acdc0d7fff43d7750ab8ceee0a5e7c6f385a017d7ae64cee0bf328cf6236cc", kill_on_drop: false }` [INFO] [stdout] 48acdc0d7fff43d7750ab8ceee0a5e7c6f385a017d7ae64cee0bf328cf6236cc