[INFO] updating cached repository Bargsteen/game-of-life-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Bargsteen/game-of-life-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Bargsteen/game-of-life-rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/Bargsteen/game-of-life-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Bargsteen/game-of-life-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Bargsteen/game-of-life-rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Bargsteen/game-of-life-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Bargsteen/game-of-life-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4ba1d71866749332f8176c80e02e5e036e0f3bc9
[INFO] sha for GitHub repo Bargsteen/game-of-life-rust: 4ba1d71866749332f8176c80e02e5e036e0f3bc9
[INFO] validating manifest of Bargsteen/game-of-life-rust on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Bargsteen/game-of-life-rust on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Bargsteen/game-of-life-rust
[INFO] finished frobbing Bargsteen/game-of-life-rust
[INFO] frobbed toml for Bargsteen/game-of-life-rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/Bargsteen/game-of-life-rust/Cargo.toml
[INFO] started frobbing Bargsteen/game-of-life-rust
[INFO] finished frobbing Bargsteen/game-of-life-rust
[INFO] frobbed toml for Bargsteen/game-of-life-rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Bargsteen/game-of-life-rust/Cargo.toml
[INFO] crate Bargsteen/game-of-life-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Bargsteen/game-of-life-rust against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Bargsteen/game-of-life-rust:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] a3828ee75e7c9e86cf716f24867c9ea495edc95a80c472c76db1483843886e0c
[INFO] running `"docker" "start" "-a" "a3828ee75e7c9e86cf716f24867c9ea495edc95a80c472c76db1483843886e0c"`
[INFO] [stderr]    Compiling game-of-life v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     for i in 0..10 {
[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: method `isAlive` should have a snake case name
[INFO] [stderr]   --> src/main.rs:50:8
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn isAlive(&self) -> bool {
[INFO] [stderr]    |        ^^^^^^^ help: convert the identifier to snake case: `is_alive`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 | /         writeln!(
[INFO] [stderr] 113 | |             f,
[INFO] [stderr] 114 | |             "Grid of size ({}, {})\n ----",
[INFO] [stderr] 115 | |             self.dimensions.rows, self.dimensions.cols
[INFO] [stderr] 116 | |         );
[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]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:121:17
[INFO] [stderr]     |
[INFO] [stderr] 121 |                 write!(f, "{} ", s);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:123:13
[INFO] [stderr]     |
[INFO] [stderr] 123 |             writeln!(f);
[INFO] [stderr]     |             ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `"docker" "inspect" "a3828ee75e7c9e86cf716f24867c9ea495edc95a80c472c76db1483843886e0c"`
[INFO] running `"docker" "rm" "-f" "a3828ee75e7c9e86cf716f24867c9ea495edc95a80c472c76db1483843886e0c"`
[INFO] [stdout] a3828ee75e7c9e86cf716f24867c9ea495edc95a80c472c76db1483843886e0c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Bargsteen/game-of-life-rust:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 498c8f2407aaaeef416558ba49a11bb7237b75e5e73460651874553d08a4330e
[INFO] running `"docker" "start" "-a" "498c8f2407aaaeef416558ba49a11bb7237b75e5e73460651874553d08a4330e"`
[INFO] [stderr]    Compiling game-of-life v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     for i in 0..10 {
[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: method `isAlive` should have a snake case name
[INFO] [stderr]   --> src/main.rs:50:8
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn isAlive(&self) -> bool {
[INFO] [stderr]    |        ^^^^^^^ help: convert the identifier to snake case: `is_alive`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 | /         writeln!(
[INFO] [stderr] 113 | |             f,
[INFO] [stderr] 114 | |             "Grid of size ({}, {})\n ----",
[INFO] [stderr] 115 | |             self.dimensions.rows, self.dimensions.cols
[INFO] [stderr] 116 | |         );
[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]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:121:17
[INFO] [stderr]     |
[INFO] [stderr] 121 |                 write!(f, "{} ", s);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:123:13
[INFO] [stderr]     |
[INFO] [stderr] 123 |             writeln!(f);
[INFO] [stderr]     |             ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "498c8f2407aaaeef416558ba49a11bb7237b75e5e73460651874553d08a4330e"`
[INFO] running `"docker" "rm" "-f" "498c8f2407aaaeef416558ba49a11bb7237b75e5e73460651874553d08a4330e"`
[INFO] [stdout] 498c8f2407aaaeef416558ba49a11bb7237b75e5e73460651874553d08a4330e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Bargsteen/game-of-life-rust:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 5ade9a3cd581b94e975d0d7e762209a8ae160ec5f727dbe0b11b853a8a93cf3a
[INFO] running `"docker" "start" "-a" "5ade9a3cd581b94e975d0d7e762209a8ae160ec5f727dbe0b11b853a8a93cf3a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/game_of_life-b98d7d856bf75f7c
[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" "5ade9a3cd581b94e975d0d7e762209a8ae160ec5f727dbe0b11b853a8a93cf3a"`
[INFO] running `"docker" "rm" "-f" "5ade9a3cd581b94e975d0d7e762209a8ae160ec5f727dbe0b11b853a8a93cf3a"`
[INFO] [stdout] 5ade9a3cd581b94e975d0d7e762209a8ae160ec5f727dbe0b11b853a8a93cf3a