[INFO] updating cached repository theHooloovoo/Game_of_Life-Rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/theHooloovoo/Game_of_Life-Rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/theHooloovoo/Game_of_Life-Rust" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/theHooloovoo/Game_of_Life-Rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/theHooloovoo/Game_of_Life-Rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/theHooloovoo/Game_of_Life-Rust" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/theHooloovoo/Game_of_Life-Rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/theHooloovoo/Game_of_Life-Rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 959f41d6a578a988c02609bc41a57a9eb598910c
[INFO] sha for GitHub repo theHooloovoo/Game_of_Life-Rust: 959f41d6a578a988c02609bc41a57a9eb598910c
[INFO] validating manifest of theHooloovoo/Game_of_Life-Rust on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of theHooloovoo/Game_of_Life-Rust on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing theHooloovoo/Game_of_Life-Rust
[INFO] finished frobbing theHooloovoo/Game_of_Life-Rust
[INFO] frobbed toml for theHooloovoo/Game_of_Life-Rust written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/theHooloovoo/Game_of_Life-Rust/Cargo.toml
[INFO] started frobbing theHooloovoo/Game_of_Life-Rust
[INFO] finished frobbing theHooloovoo/Game_of_Life-Rust
[INFO] frobbed toml for theHooloovoo/Game_of_Life-Rust written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/theHooloovoo/Game_of_Life-Rust/Cargo.toml
[INFO] crate theHooloovoo/Game_of_Life-Rust has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing theHooloovoo/Game_of_Life-Rust against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-6/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/theHooloovoo/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=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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 45509b1a29058d382f617e73ee98f37a7b27972e65c3668f83708523f2a68503
[INFO] running `"docker" "start" "-a" "45509b1a29058d382f617e73ee98f37a7b27972e65c3668f83708523f2a68503"`
[INFO] [stderr]    Compiling conway_rs v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/reader.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `arg_file_name` is never read
[INFO] [stderr]   --> src/main.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut arg_file_name = "".to_string();
[INFO] [stderr]    |             ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `main_grid` is never read
[INFO] [stderr]   --> src/main.rs:58:25
[INFO] [stderr]    |
[INFO] [stderr] 58 |             Ok(data) => main_grid = grid::Grid::load_from_file_data(data),
[INFO] [stderr]    |                         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `cell_count` is never read
[INFO] [stderr]    --> src/grid.rs:107:17
[INFO] [stderr]     |
[INFO] [stderr] 107 |         let mut cell_count = 0;
[INFO] [stderr]     |                 ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]    --> src/grid.rs:150:33
[INFO] [stderr]     |
[INFO] [stderr] 150 |         if self.state == true { self.state == false; }
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]    --> src/grid.rs:151:33
[INFO] [stderr]     |
[INFO] [stderr] 151 |         else                  { self.state == true;  }
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "45509b1a29058d382f617e73ee98f37a7b27972e65c3668f83708523f2a68503"`
[INFO] running `"docker" "rm" "-f" "45509b1a29058d382f617e73ee98f37a7b27972e65c3668f83708523f2a68503"`
[INFO] [stdout] 45509b1a29058d382f617e73ee98f37a7b27972e65c3668f83708523f2a68503
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-6/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/theHooloovoo/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=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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 72884bda893b9d0fbbc06b19b6bea64f2fea686f62968beb6d89f5ecf315dde9
[INFO] running `"docker" "start" "-a" "72884bda893b9d0fbbc06b19b6bea64f2fea686f62968beb6d89f5ecf315dde9"`
[INFO] [stderr]    Compiling conway_rs v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/reader.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `arg_file_name` is never read
[INFO] [stderr]   --> src/main.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut arg_file_name = "".to_string();
[INFO] [stderr]    |             ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `main_grid` is never read
[INFO] [stderr]   --> src/main.rs:58:25
[INFO] [stderr]    |
[INFO] [stderr] 58 |             Ok(data) => main_grid = grid::Grid::load_from_file_data(data),
[INFO] [stderr]    |                         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `cell_count` is never read
[INFO] [stderr]    --> src/grid.rs:107:17
[INFO] [stderr]     |
[INFO] [stderr] 107 |         let mut cell_count = 0;
[INFO] [stderr]     |                 ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]    --> src/grid.rs:150:33
[INFO] [stderr]     |
[INFO] [stderr] 150 |         if self.state == true { self.state == false; }
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]    --> src/grid.rs:151:33
[INFO] [stderr]     |
[INFO] [stderr] 151 |         else                  { self.state == true;  }
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `"docker" "inspect" "72884bda893b9d0fbbc06b19b6bea64f2fea686f62968beb6d89f5ecf315dde9"`
[INFO] running `"docker" "rm" "-f" "72884bda893b9d0fbbc06b19b6bea64f2fea686f62968beb6d89f5ecf315dde9"`
[INFO] [stdout] 72884bda893b9d0fbbc06b19b6bea64f2fea686f62968beb6d89f5ecf315dde9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-6/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/theHooloovoo/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=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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] b2137df08f11b4fe5fd36d125ef8c9a3a4073fa3df9aff859c5afa5480db5fdc
[INFO] running `"docker" "start" "-a" "b2137df08f11b4fe5fd36d125ef8c9a3a4073fa3df9aff859c5afa5480db5fdc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/conway_rs-81a637d254212ed7
[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" "b2137df08f11b4fe5fd36d125ef8c9a3a4073fa3df9aff859c5afa5480db5fdc"`
[INFO] running `"docker" "rm" "-f" "b2137df08f11b4fe5fd36d125ef8c9a3a4073fa3df9aff859c5afa5480db5fdc"`
[INFO] [stdout] b2137df08f11b4fe5fd36d125ef8c9a3a4073fa3df9aff859c5afa5480db5fdc