[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/beta-1.38-1/sources/1.37.0/gh/iwburns/rusty-life"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/iwburns/rusty-life'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/iwburns/rusty-life" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/iwburns/rusty-life"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of iwburns/rusty-life on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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/beta-1.38-1/sources/1.37.0/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/beta-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing iwburns/rusty-life against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] f9ff8b101b1be603c579cce257ac6822720907560853fd42ee1d409cfa43a518
[INFO] running `"docker" "start" "-a" "f9ff8b101b1be603c579cce257ac6822720907560853fd42ee1d409cfa43a518"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling stb_truetype v0.2.2
[INFO] [stderr]    Compiling deflate v0.7.17
[INFO] [stderr]    Compiling inflate v0.3.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.0
[INFO] [stderr]    Compiling gl_generator v0.8.0
[INFO] [stderr]    Compiling serde_derive_internals v0.20.0
[INFO] [stderr]    Compiling wayland-client v0.12.5
[INFO] [stderr]    Compiling ordered-float v0.5.0
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling num-iter v0.1.35
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rusttype v0.4.1
[INFO] [stderr]    Compiling png v0.11.0
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling wayland-protocols v0.12.5
[INFO] [stderr]    Compiling wayland-kbd v0.13.1
[INFO] [stderr]    Compiling piston2d-graphics v0.26.0
[INFO] [stderr]    Compiling rayon v1.0.0
[INFO] [stderr]    Compiling glutin v0.12.2
[INFO] [stderr]    Compiling serde_derive v1.0.29
[INFO] [stderr]    Compiling jpeg-decoder v0.1.14
[INFO] [stderr]    Compiling wayland-window v0.13.2
[INFO] [stderr]    Compiling winit v0.10.0
[INFO] [stderr]    Compiling image v0.18.0
[INFO] [stderr]    Compiling pistoncore-input v0.20.0
[INFO] [stderr]    Compiling piston2d-opengl_graphics v0.52.0
[INFO] [stderr]    Compiling pistoncore-window v0.31.0
[INFO] [stderr]    Compiling pistoncore-event_loop v0.36.0
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.45.2
[INFO] [stderr]    Compiling piston v0.36.0
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] running `"docker" "inspect" "f9ff8b101b1be603c579cce257ac6822720907560853fd42ee1d409cfa43a518"`
[INFO] running `"docker" "rm" "-f" "f9ff8b101b1be603c579cce257ac6822720907560853fd42ee1d409cfa43a518"`
[INFO] [stdout] f9ff8b101b1be603c579cce257ac6822720907560853fd42ee1d409cfa43a518
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] cf6d957bb236c662e1e037664d49885faf266004e2c60c81931624deccd9fe63
[INFO] running `"docker" "start" "-a" "cf6d957bb236c662e1e037664d49885faf266004e2c60c81931624deccd9fe63"`
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 2.19s
[INFO] running `"docker" "inspect" "cf6d957bb236c662e1e037664d49885faf266004e2c60c81931624deccd9fe63"`
[INFO] running `"docker" "rm" "-f" "cf6d957bb236c662e1e037664d49885faf266004e2c60c81931624deccd9fe63"`
[INFO] [stdout] cf6d957bb236c662e1e037664d49885faf266004e2c60c81931624deccd9fe63
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 328d46d0d86ac8d8c7b1a8240a6b74569d55ba494b30de9599a8a0d879f4d5fe
[INFO] running `"docker" "start" "-a" "328d46d0d86ac8d8c7b1a8240a6b74569d55ba494b30de9599a8a0d879f4d5fe"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rusty_life-c4ee580d6cc29817
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test app::state::test::test_modulo ... ok
[INFO] [stdout] test app::state::test::get_neighbor_indices_complex ... ok
[INFO] [stdout] test app::state::test::get_neighbor_indices_simple ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "328d46d0d86ac8d8c7b1a8240a6b74569d55ba494b30de9599a8a0d879f4d5fe"`
[INFO] running `"docker" "rm" "-f" "328d46d0d86ac8d8c7b1a8240a6b74569d55ba494b30de9599a8a0d879f4d5fe"`
[INFO] [stdout] 328d46d0d86ac8d8c7b1a8240a6b74569d55ba494b30de9599a8a0d879f4d5fe