[INFO] cloning repository https://github.com/CasperN/snake
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CasperN/snake" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCasperN%2Fsnake", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCasperN%2Fsnake'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f27a43123c6ee9e86731adf9a3bac2145c09eb2
[INFO] testing CasperN/snake against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCasperN%2Fsnake" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CasperN/snake on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CasperN/snake
[INFO] finished tweaking git repo https://github.com/CasperN/snake
[INFO] tweaked toml for git repo https://github.com/CasperN/snake written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/CasperN/snake already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82d4c28a365d9a357ac63c7d9cfcf92f42ebb07c02ce5bc3c76bf2fefd49ce53
[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" "82d4c28a365d9a357ac63c7d9cfcf92f42ebb07c02ce5bc3c76bf2fefd49ce53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82d4c28a365d9a357ac63c7d9cfcf92f42ebb07c02ce5bc3c76bf2fefd49ce53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82d4c28a365d9a357ac63c7d9cfcf92f42ebb07c02ce5bc3c76bf2fefd49ce53", kill_on_drop: false }`
[INFO] [stdout] 82d4c28a365d9a357ac63c7d9cfcf92f42ebb07c02ce5bc3c76bf2fefd49ce53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9794df25a6ef3f57068a73770da527f32770b08ea3958bf04d4b0385cc976182
[INFO] running `Command { std: "docker" "start" "-a" "9794df25a6ef3f57068a73770da527f32770b08ea3958bf04d4b0385cc976182", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.1
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling libc v0.2.39
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]    Compiling num-iter v0.1.35
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling sdl2 v0.31.0
[INFO] [stderr]    Compiling snake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sdl2`
[INFO] [stdout]  --> src/game_render.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use sdl2;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `font_col`
[INFO] [stdout]   --> src/game_render.rs:49:7
[INFO] [stdout]    |
[INFO] [stdout] 49 |   let font_col = Color::RGB(255, 0, 0);
[INFO] [stdout]    |       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_font_col`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `font_col`
[INFO] [stdout]   --> src/game_render.rs:62:7
[INFO] [stdout]    |
[INFO] [stdout] 62 |   let font_col = Color::RGB(255, 0, 0);
[INFO] [stdout]    |       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_font_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/game_state.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let mut rng = rand::thread_rng();
[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/game_state.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let mut snake = LinkedList::new();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/game_render.rs:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 |   canvas.fill_rect(board);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/game_render.rs:73:3
[INFO] [stdout]    |
[INFO] [stdout] 73 |   canvas.fill_rect(r);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.47s
[INFO] running `Command { std: "docker" "inspect" "9794df25a6ef3f57068a73770da527f32770b08ea3958bf04d4b0385cc976182", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9794df25a6ef3f57068a73770da527f32770b08ea3958bf04d4b0385cc976182", kill_on_drop: false }`
[INFO] [stdout] 9794df25a6ef3f57068a73770da527f32770b08ea3958bf04d4b0385cc976182
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0532b6bdf7fc69abc41724a9c22f0118e3a359406c1b1add049c018df2ee686
[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" "f0532b6bdf7fc69abc41724a9c22f0118e3a359406c1b1add049c018df2ee686", kill_on_drop: false }`
[INFO] [stderr]    Compiling snake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sdl2`
[INFO] [stdout]  --> src/game_render.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use sdl2;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `font_col`
[INFO] [stdout]   --> src/game_render.rs:49:7
[INFO] [stdout]    |
[INFO] [stdout] 49 |   let font_col = Color::RGB(255, 0, 0);
[INFO] [stdout]    |       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_font_col`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `font_col`
[INFO] [stdout]   --> src/game_render.rs:62:7
[INFO] [stdout]    |
[INFO] [stdout] 62 |   let font_col = Color::RGB(255, 0, 0);
[INFO] [stdout]    |       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_font_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/game_state.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let mut rng = rand::thread_rng();
[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/game_state.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let mut snake = LinkedList::new();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/game_render.rs:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 |   canvas.fill_rect(board);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/game_render.rs:73:3
[INFO] [stdout]    |
[INFO] [stdout] 73 |   canvas.fill_rect(r);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "f0532b6bdf7fc69abc41724a9c22f0118e3a359406c1b1add049c018df2ee686", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0532b6bdf7fc69abc41724a9c22f0118e3a359406c1b1add049c018df2ee686", kill_on_drop: false }`
[INFO] [stdout] f0532b6bdf7fc69abc41724a9c22f0118e3a359406c1b1add049c018df2ee686
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 47cd83e54e915791cd2f6b2c9d17fbcd611de137d36b92aa662952dd7ab66e6e
[INFO] running `Command { std: "docker" "start" "-a" "47cd83e54e915791cd2f6b2c9d17fbcd611de137d36b92aa662952dd7ab66e6e", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `sdl2`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/game_render.rs:3:5
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 3 | use sdl2;
[INFO] [stdout] 
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `font_col`
[INFO] [stderr]   --> src/game_render.rs:49:7
[INFO] [stderr]    |
[INFO] [stderr] 49 |   let font_col = Color::RGB(255, 0, 0);
[INFO] [stderr]    |       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_font_col`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `font_col`
[INFO] [stderr]   --> src/game_render.rs:62:7
[INFO] [stderr]    |
[INFO] [stderr] 62 |   let font_col = Color::RGB(255, 0, 0);
[INFO] [stderr]    |       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_font_col`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/game_state.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |     let mut rng = rand::thread_rng();
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/game_state.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |     let mut snake = LinkedList::new();
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/game_render.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |   canvas.fill_rect(board);
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/game_render.rs:73:3
[INFO] [stderr]    |
[INFO] [stderr] 73 |   canvas.fill_rect(r);
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `snake` (bin "snake" test) generated 7 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/snake-8644330cf57575da)
[INFO] running `Command { std: "docker" "inspect" "47cd83e54e915791cd2f6b2c9d17fbcd611de137d36b92aa662952dd7ab66e6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47cd83e54e915791cd2f6b2c9d17fbcd611de137d36b92aa662952dd7ab66e6e", kill_on_drop: false }`
[INFO] [stdout] 47cd83e54e915791cd2f6b2c9d17fbcd611de137d36b92aa662952dd7ab66e6e