[INFO] updating cached repository jdelman/conway-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jdelman/conway-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jdelman/conway-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/jdelman/conway-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jdelman/conway-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jdelman/conway-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jdelman/conway-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jdelman/conway-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 86ea64bb7103d91bbe9fcdbbd30b2b608a5018ce
[INFO] sha for GitHub repo jdelman/conway-rust: 86ea64bb7103d91bbe9fcdbbd30b2b608a5018ce
[INFO] validating manifest of jdelman/conway-rust 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 jdelman/conway-rust 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 jdelman/conway-rust
[INFO] finished frobbing jdelman/conway-rust
[INFO] frobbed toml for jdelman/conway-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/jdelman/conway-rust/Cargo.toml
[INFO] started frobbing jdelman/conway-rust
[INFO] finished frobbing jdelman/conway-rust
[INFO] frobbed toml for jdelman/conway-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jdelman/conway-rust/Cargo.toml
[INFO] crate jdelman/conway-rust 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 jdelman/conway-rust against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jdelman/conway-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] e90ec707c57053a339ca59ed1425d3cbb91c5193aa164f12ce27f944604ee42c
[INFO] running `"docker" "start" "-a" "e90ec707c57053a339ca59ed1425d3cbb91c5193aa164f12ce27f944604ee42c"`
[INFO] [stderr]    Compiling getrandom v0.1.6
[INFO] [stderr]    Compiling atty v0.2.12
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand_core v0.5.0
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling conway-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/grid.rs:49:24
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let segment_bits = (8 * SEGMENT_SIZE);
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:77:8
[INFO] [stderr]    |
[INFO] [stderr] 77 |     if (delay > 0) {
[INFO] [stderr]    |        ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print_indexes`
[INFO] [stderr]    --> src/grid.rs:130:3
[INFO] [stderr]     |
[INFO] [stderr] 130 |   pub fn print_indexes(&self) {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_base64`
[INFO] [stderr]    --> src/grid.rs:145:3
[INFO] [stderr]     |
[INFO] [stderr] 145 |   pub fn to_base64(&self) -> String {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `to_octets`
[INFO] [stderr]  --> src/octets.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn to_octets(value: usize) -> Vec<u8> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.90s
[INFO] running `"docker" "inspect" "e90ec707c57053a339ca59ed1425d3cbb91c5193aa164f12ce27f944604ee42c"`
[INFO] running `"docker" "rm" "-f" "e90ec707c57053a339ca59ed1425d3cbb91c5193aa164f12ce27f944604ee42c"`
[INFO] [stdout] e90ec707c57053a339ca59ed1425d3cbb91c5193aa164f12ce27f944604ee42c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jdelman/conway-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] bf89a7b76b1179f5a70324df0a375fde78de1888edba4d00e5344e73f3801195
[INFO] running `"docker" "start" "-a" "bf89a7b76b1179f5a70324df0a375fde78de1888edba4d00e5344e73f3801195"`
[INFO] [stderr]    Compiling conway-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/grid.rs:49:24
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let segment_bits = (8 * SEGMENT_SIZE);
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:77:8
[INFO] [stderr]    |
[INFO] [stderr] 77 |     if (delay > 0) {
[INFO] [stderr]    |        ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print_indexes`
[INFO] [stderr]    --> src/grid.rs:130:3
[INFO] [stderr]     |
[INFO] [stderr] 130 |   pub fn print_indexes(&self) {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_base64`
[INFO] [stderr]    --> src/grid.rs:145:3
[INFO] [stderr]     |
[INFO] [stderr] 145 |   pub fn to_base64(&self) -> String {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `to_octets`
[INFO] [stderr]  --> src/octets.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn to_octets(value: usize) -> Vec<u8> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `"docker" "inspect" "bf89a7b76b1179f5a70324df0a375fde78de1888edba4d00e5344e73f3801195"`
[INFO] running `"docker" "rm" "-f" "bf89a7b76b1179f5a70324df0a375fde78de1888edba4d00e5344e73f3801195"`
[INFO] [stdout] bf89a7b76b1179f5a70324df0a375fde78de1888edba4d00e5344e73f3801195
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/jdelman/conway-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 95abd9de1384c99e0371e9b011678ce4748b98fb83cd68f649a308e94acd4919
[INFO] running `"docker" "start" "-a" "95abd9de1384c99e0371e9b011678ce4748b98fb83cd68f649a308e94acd4919"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/conway_rust-71606f3878d47ff2
[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" "95abd9de1384c99e0371e9b011678ce4748b98fb83cd68f649a308e94acd4919"`
[INFO] running `"docker" "rm" "-f" "95abd9de1384c99e0371e9b011678ce4748b98fb83cd68f649a308e94acd4919"`
[INFO] [stdout] 95abd9de1384c99e0371e9b011678ce4748b98fb83cd68f649a308e94acd4919