[INFO] updating cached repository iwburns/rusty-life
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/iwburns/rusty-life
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/iwburns/rusty-life" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/iwburns/rusty-life"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/iwburns/rusty-life'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/iwburns/rusty-life" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/iwburns/rusty-life"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/iwburns/rusty-life'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b63e298086cc1f2028e3851403ef2f9780204165
[INFO] sha for GitHub repo iwburns/rusty-life: b63e298086cc1f2028e3851403ef2f9780204165
[INFO] validating manifest of iwburns/rusty-life on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of iwburns/rusty-life on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing iwburns/rusty-life
[INFO] finished frobbing iwburns/rusty-life
[INFO] frobbed toml for iwburns/rusty-life written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/iwburns/rusty-life/Cargo.toml
[INFO] started frobbing iwburns/rusty-life
[INFO] finished frobbing iwburns/rusty-life
[INFO] frobbed toml for iwburns/rusty-life written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/iwburns/rusty-life/Cargo.toml
[INFO] crate iwburns/rusty-life already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking iwburns/rusty-life against try#8ec8125bea94852768b56958f05da47666c21ab0 for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-4/try#8ec8125bea94852768b56958f05da47666c21ab0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/iwburns/rusty-life:/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" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 948d7276d8eb68ffb04b6309a9a35b265344cfdfad77ea0bc93ae4e1c0042cd9
[INFO] running `"docker" "start" "-a" "948d7276d8eb68ffb04b6309a9a35b265344cfdfad77ea0bc93ae4e1c0042cd9"`
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]     Checking rusttype v0.4.1
[INFO] [stderr]     Checking rayon-core v1.4.0
[INFO] [stderr]     Checking pistoncore-window v0.31.0
[INFO] [stderr]     Checking rayon v1.0.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.36.0
[INFO] [stderr]     Checking piston2d-graphics v0.26.0
[INFO] [stderr]     Checking piston v0.36.0
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.14
[INFO] [stderr]     Checking image v0.18.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.45.2
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.52.0
[INFO] [stderr]     Checking rusty_life v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/app/mod.rs:31:20
[INFO] [stderr]    |
[INFO] [stderr] 31 |             .map(|(i, &cell)| {
[INFO] [stderr]    |                    ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/app/mod.rs:59:30
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn update(&mut self, args: &UpdateArgs) {
[INFO] [stderr]    |                              ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/app/state.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |         for i in 0..cells.capacity() {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/app/mod.rs:31:20
[INFO] [stderr]    |
[INFO] [stderr] 31 |             .map(|(i, &cell)| {
[INFO] [stderr]    |                    ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/app/mod.rs:59:30
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn update(&mut self, args: &UpdateArgs) {
[INFO] [stderr]    |                              ^^^^ help: consider prefixing with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/app/state.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |         for i in 0..cells.capacity() {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.44s
[INFO] running `"docker" "inspect" "948d7276d8eb68ffb04b6309a9a35b265344cfdfad77ea0bc93ae4e1c0042cd9"`
[INFO] running `"docker" "rm" "-f" "948d7276d8eb68ffb04b6309a9a35b265344cfdfad77ea0bc93ae4e1c0042cd9"`
[INFO] [stdout] 948d7276d8eb68ffb04b6309a9a35b265344cfdfad77ea0bc93ae4e1c0042cd9