[INFO] updating cached repository https://github.com/robinwhittleton/life_rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d41847ab1e12b20bbf2ca21a330ce33eae987b10
[INFO] testing robinwhittleton/life_rs against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinwhittleton%2Flife_rs" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/robinwhittleton/life_rs on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/robinwhittleton/life_rs
[INFO] finished tweaking git repo https://github.com/robinwhittleton/life_rs
[INFO] tweaked toml for git repo https://github.com/robinwhittleton/life_rs written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/robinwhittleton/life_rs already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /big/crater/work/builds/worker-3/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 4edb862b47357ab4ebc25e0e59b7713628093a578d6e0efdffaff5851ece187c
[INFO] running `"docker" "start" "-a" "4edb862b47357ab4ebc25e0e59b7713628093a578d6e0efdffaff5851ece187c"`
[INFO] [stderr]    Compiling piston-texture v0.4.0
[INFO] [stderr]    Compiling draw_state v0.4.0
[INFO] [stderr]    Compiling gif v0.8.0
[INFO] [stderr]    Compiling pistoncore-input v0.10.0
[INFO] [stderr]    Compiling gl_generator v0.4.2
[INFO] [stderr]    Compiling glutin v0.5.2
[INFO] [stderr]    Compiling piston2d-graphics v0.16.0
[INFO] [stderr]    Compiling image v0.9.1
[INFO] [stderr]    Compiling gfx_core v0.2.1
[INFO] [stderr]    Compiling gl v0.5.2
[INFO] [stderr]    Compiling pistoncore-window v0.17.0
[INFO] [stderr]    Compiling pistoncore-event_loop v0.20.1
[INFO] [stderr]    Compiling piston v0.20.1
[INFO] [stderr]    Compiling gfx v0.10.2
[INFO] [stderr]    Compiling gfx_device_gl v0.9.0
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.24.0
[INFO] [stderr]    Compiling piston-gfx_texture v0.14.0
[INFO] [stderr]    Compiling piston2d-gfx_graphics v0.27.0
[INFO] [stderr]    Compiling piston_window v0.44.0
[INFO] [stderr]    Compiling life_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `field_buffer`
[INFO] [stderr]   --> src/main.rs:18:11
[INFO] [stderr]    |
[INFO] [stderr] 18 |   let mut field_buffer: [bool; TOTAL_CELLS] = [false; TOTAL_CELLS];
[INFO] [stderr]    |           ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_field_buffer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `field`
[INFO] [stderr]   --> src/main.rs:34:66
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn draw(window: &mut PistonWindow, event: &piston_window::Event, field: &[bool]) {
[INFO] [stderr]    |                                                                  ^^^^^ help: consider prefixing with an underscore: `_field`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:18:7
[INFO] [stderr]    |
[INFO] [stderr] 18 |   let mut field_buffer: [bool; TOTAL_CELLS] = [false; TOTAL_CELLS];
[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]     Finished dev [unoptimized + debuginfo] target(s) in 35.48s
[INFO] running `"docker" "inspect" "4edb862b47357ab4ebc25e0e59b7713628093a578d6e0efdffaff5851ece187c"`
[INFO] running `"docker" "rm" "-f" "4edb862b47357ab4ebc25e0e59b7713628093a578d6e0efdffaff5851ece187c"`
[INFO] [stdout] 4edb862b47357ab4ebc25e0e59b7713628093a578d6e0efdffaff5851ece187c
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1af8dd65fdbd7927f60b97d1125b7d4693e40d2d1a3ced0f8f7cdd4dc79d2be8
[INFO] running `"docker" "start" "-a" "1af8dd65fdbd7927f60b97d1125b7d4693e40d2d1a3ced0f8f7cdd4dc79d2be8"`
[INFO] [stderr]    Compiling life_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `field_buffer`
[INFO] [stderr]   --> src/main.rs:18:11
[INFO] [stderr]    |
[INFO] [stderr] 18 |   let mut field_buffer: [bool; TOTAL_CELLS] = [false; TOTAL_CELLS];
[INFO] [stderr]    |           ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_field_buffer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `field`
[INFO] [stderr]   --> src/main.rs:34:66
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn draw(window: &mut PistonWindow, event: &piston_window::Event, field: &[bool]) {
[INFO] [stderr]    |                                                                  ^^^^^ help: consider prefixing with an underscore: `_field`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:18:7
[INFO] [stderr]    |
[INFO] [stderr] 18 |   let mut field_buffer: [bool; TOTAL_CELLS] = [false; TOTAL_CELLS];
[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]     Finished dev [unoptimized + debuginfo] target(s) in 2.78s
[INFO] running `"docker" "inspect" "1af8dd65fdbd7927f60b97d1125b7d4693e40d2d1a3ced0f8f7cdd4dc79d2be8"`
[INFO] running `"docker" "rm" "-f" "1af8dd65fdbd7927f60b97d1125b7d4693e40d2d1a3ced0f8f7cdd4dc79d2be8"`
[INFO] [stdout] 1af8dd65fdbd7927f60b97d1125b7d4693e40d2d1a3ced0f8f7cdd4dc79d2be8
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] cc57733711138f952dc2d952fa3faf2ef85b49fd98150109b64220d3f7099f94
[INFO] running `"docker" "start" "-a" "cc57733711138f952dc2d952fa3faf2ef85b49fd98150109b64220d3f7099f94"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/life_rs-a4498aa3f3f4b8fd
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "cc57733711138f952dc2d952fa3faf2ef85b49fd98150109b64220d3f7099f94"`
[INFO] running `"docker" "rm" "-f" "cc57733711138f952dc2d952fa3faf2ef85b49fd98150109b64220d3f7099f94"`
[INFO] [stdout] cc57733711138f952dc2d952fa3faf2ef85b49fd98150109b64220d3f7099f94