[INFO] updating cached repository notryanb/rust_snake
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/notryanb/rust_snake
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/notryanb/rust_snake" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/notryanb/rust_snake"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/notryanb/rust_snake'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/notryanb/rust_snake" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/notryanb/rust_snake"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/notryanb/rust_snake'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e587778a994fc846f9b6c94269d95ac0795e5fd7
[INFO] sha for GitHub repo notryanb/rust_snake: e587778a994fc846f9b6c94269d95ac0795e5fd7
[INFO] validating manifest of notryanb/rust_snake on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of notryanb/rust_snake on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing notryanb/rust_snake
[INFO] finished frobbing notryanb/rust_snake
[INFO] frobbed toml for notryanb/rust_snake written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/notryanb/rust_snake/Cargo.toml
[INFO] started frobbing notryanb/rust_snake
[INFO] finished frobbing notryanb/rust_snake
[INFO] frobbed toml for notryanb/rust_snake written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/notryanb/rust_snake/Cargo.toml
[INFO] crate notryanb/rust_snake already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking notryanb/rust_snake against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-4/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/notryanb/rust_snake:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] cf0f061bb24b706bb6cda2c87bcb8cd6d827f8c58781f2fb281fd4f76dcb7616
[INFO] running `"docker" "start" "-a" "cf0f061bb24b706bb6cda2c87bcb8cd6d827f8c58781f2fb281fd4f76dcb7616"`
[INFO] [stderr]     Checking rust_snake v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `style`
[INFO] [stderr]  --> src/board.rs:3:22
[INFO] [stderr]   |
[INFO] [stderr] 3 | use termion::{color, style};
[INFO] [stderr]   |                      ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `color`, `style`
[INFO] [stderr]  --> src/main.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 | use termion::{color,style};
[INFO] [stderr]   |               ^^^^^ ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `style`
[INFO] [stderr]  --> src/board.rs:3:22
[INFO] [stderr]   |
[INFO] [stderr] 3 | use termion::{color, style};
[INFO] [stderr]   |                      ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `color`, `style`
[INFO] [stderr]  --> src/main.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 | use termion::{color,style};
[INFO] [stderr]   |               ^^^^^ ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `width`
[INFO] [stderr]   --> src/board.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     width: i32,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/board.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 | /             match cell.x % self.height {
[INFO] [stderr] 60 | |                 0 => write!(f, "{}\n", color::Fg(color::Green)),
[INFO] [stderr] 61 | |                 _ => write!(f, "{}", color::Fg(color::Blue))
[INFO] [stderr] 62 | |             };
[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 variable: `grid`
[INFO] [stderr]   --> src/board.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |         let grid: Vec<Cell> = Vec::with_capacity((width * height) as usize);
[INFO] [stderr]    |             ^^^^ help: consider prefixing with an underscore: `_grid`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/board.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 | /             match cell.x % self.height {
[INFO] [stderr] 60 | |                 0 => write!(f, "{}\n", color::Fg(color::Green)),
[INFO] [stderr] 61 | |                 _ => write!(f, "{}", color::Fg(color::Blue))
[INFO] [stderr] 62 | |             };
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "cf0f061bb24b706bb6cda2c87bcb8cd6d827f8c58781f2fb281fd4f76dcb7616"`
[INFO] running `"docker" "rm" "-f" "cf0f061bb24b706bb6cda2c87bcb8cd6d827f8c58781f2fb281fd4f76dcb7616"`
[INFO] [stdout] cf0f061bb24b706bb6cda2c87bcb8cd6d827f8c58781f2fb281fd4f76dcb7616