[INFO] updating cached repository whothey/rsnake
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/whothey/rsnake
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/whothey/rsnake" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/whothey/rsnake"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/whothey/rsnake'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/whothey/rsnake" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/whothey/rsnake"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/whothey/rsnake'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 373f9ef184e1a5838874d9bd05e9b2e9fa686b5d
[INFO] sha for GitHub repo whothey/rsnake: 373f9ef184e1a5838874d9bd05e9b2e9fa686b5d
[INFO] validating manifest of whothey/rsnake on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of whothey/rsnake on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing whothey/rsnake
[INFO] finished frobbing whothey/rsnake
[INFO] frobbed toml for whothey/rsnake written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/whothey/rsnake/Cargo.toml
[INFO] started frobbing whothey/rsnake
[INFO] finished frobbing whothey/rsnake
[INFO] frobbed toml for whothey/rsnake written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/whothey/rsnake/Cargo.toml
[INFO] crate whothey/rsnake already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking whothey/rsnake against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-2/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/whothey/rsnake:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f29188e9fbb402097c95e5505d424ec1d86a6b5e8cc12e5a168c9581632969c5
[INFO] running `"docker" "start" "-a" "f29188e9fbb402097c95e5505d424ec1d86a6b5e8cc12e5a168c9581632969c5"`
[INFO] [stderr]    Compiling sdl2-sys v0.30.0
[INFO] [stderr]     Checking sdl2 v0.30.0
[INFO] [stderr]     Checking rsnake v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `WHITE`
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let WHITE: Color = Color::RGB(0xff, 0xff, 0xff);
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_WHITE`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timer`
[INFO] [stderr]   --> src/main.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let mut timer  = ctx.timer().expect("Could not create a timer!");
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_timer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `framerate`
[INFO] [stderr]   --> src/main.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let mut framerate = 0u16;
[INFO] [stderr]    |             ^^^^^^^^^ help: consider prefixing with an underscore: `_framerate`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let mut timer  = ctx.timer().expect("Could not create a timer!");
[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/main.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let mut framerate = 0u16;
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `BLACK` should have a snake case name
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let BLACK: Color = Color::RGB(0, 0, 0);
[INFO] [stderr]    |         ^^^^^ help: convert the identifier to snake case: `black`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `WHITE` should have a snake case name
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let WHITE: Color = Color::RGB(0xff, 0xff, 0xff);
[INFO] [stderr]    |         ^^^^^ help: convert the identifier to snake case: `white`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `RED` should have a snake case name
[INFO] [stderr]   --> src/main.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let RED:   Color = Color::RGB(0xff, 0x00, 0x00);
[INFO] [stderr]    |         ^^^ help: convert the identifier to snake case: `red`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `GREEN` should have a snake case name
[INFO] [stderr]   --> src/main.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let GREEN: Color = Color::RGB(0x00, 0xff, 0x00);
[INFO] [stderr]    |         ^^^^^ help: convert the identifier to snake case: `green`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/snake.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |         canvas.fill_rect(self.head);
[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 `std::result::Result` that must be used
[INFO] [stderr]   --> src/snake.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 |             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: unused variable: `WHITE`
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let WHITE: Color = Color::RGB(0xff, 0xff, 0xff);
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_WHITE`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timer`
[INFO] [stderr]   --> src/main.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let mut timer  = ctx.timer().expect("Could not create a timer!");
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_timer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `framerate`
[INFO] [stderr]   --> src/main.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let mut framerate = 0u16;
[INFO] [stderr]    |             ^^^^^^^^^ help: consider prefixing with an underscore: `_framerate`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let mut timer  = ctx.timer().expect("Could not create a timer!");
[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/main.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let mut framerate = 0u16;
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `BLACK` should have a snake case name
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let BLACK: Color = Color::RGB(0, 0, 0);
[INFO] [stderr]    |         ^^^^^ help: convert the identifier to snake case: `black`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `WHITE` should have a snake case name
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let WHITE: Color = Color::RGB(0xff, 0xff, 0xff);
[INFO] [stderr]    |         ^^^^^ help: convert the identifier to snake case: `white`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `RED` should have a snake case name
[INFO] [stderr]   --> src/main.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let RED:   Color = Color::RGB(0xff, 0x00, 0x00);
[INFO] [stderr]    |         ^^^ help: convert the identifier to snake case: `red`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `GREEN` should have a snake case name
[INFO] [stderr]   --> src/main.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let GREEN: Color = Color::RGB(0x00, 0xff, 0x00);
[INFO] [stderr]    |         ^^^^^ help: convert the identifier to snake case: `green`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/snake.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |         canvas.fill_rect(self.head);
[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 `std::result::Result` that must be used
[INFO] [stderr]   --> src/snake.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 |             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]     Finished dev [unoptimized + debuginfo] target(s) in 4.91s
[INFO] running `"docker" "inspect" "f29188e9fbb402097c95e5505d424ec1d86a6b5e8cc12e5a168c9581632969c5"`
[INFO] running `"docker" "rm" "-f" "f29188e9fbb402097c95e5505d424ec1d86a6b5e8cc12e5a168c9581632969c5"`
[INFO] [stdout] f29188e9fbb402097c95e5505d424ec1d86a6b5e8cc12e5a168c9581632969c5