[INFO] updating cached repository GlooriousWalrus/learning-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/GlooriousWalrus/learning-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/GlooriousWalrus/learning-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/GlooriousWalrus/learning-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/GlooriousWalrus/learning-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/GlooriousWalrus/learning-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/GlooriousWalrus/learning-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/GlooriousWalrus/learning-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0274fa44ddc9ee098b167fe9763ace734da4904c
[INFO] sha for GitHub repo GlooriousWalrus/learning-rust: 0274fa44ddc9ee098b167fe9763ace734da4904c
[INFO] validating manifest of GlooriousWalrus/learning-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 GlooriousWalrus/learning-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 GlooriousWalrus/learning-rust
[INFO] finished frobbing GlooriousWalrus/learning-rust
[INFO] frobbed toml for GlooriousWalrus/learning-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/GlooriousWalrus/learning-rust/Cargo.toml
[INFO] started frobbing GlooriousWalrus/learning-rust
[INFO] finished frobbing GlooriousWalrus/learning-rust
[INFO] frobbed toml for GlooriousWalrus/learning-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/GlooriousWalrus/learning-rust/Cargo.toml
[INFO] crate GlooriousWalrus/learning-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] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/GlooriousWalrus/learning-rust/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 GlooriousWalrus/learning-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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/GlooriousWalrus/learning-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] 9d41d786e9206ead62ee7798fe44a69f8847fc2b9f471c1b2bcd2f532c40bdba
[INFO] running `"docker" "start" "-a" "9d41d786e9206ead62ee7798fe44a69f8847fc2b9f471c1b2bcd2f532c40bdba"`
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling bunnies v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `kek`
[INFO] [stderr]    --> src/game/mod.rs:144:17
[INFO] [stderr]     |
[INFO] [stderr] 144 |             let kek = colony.iter().take_while(|x| x.ghoul == false);
[INFO] [stderr]     |                 ^^^ help: consider prefixing with an underscore: `_kek`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]    --> src/game/mod.rs:145:17
[INFO] [stderr]     |
[INFO] [stderr] 145 |             let rng: usize = rand::thread_rng().gen_range(0, colony.len() - 1);
[INFO] [stderr]     |                 ^^^ help: consider prefixing with an underscore: `_rng`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.90s
[INFO] running `"docker" "inspect" "9d41d786e9206ead62ee7798fe44a69f8847fc2b9f471c1b2bcd2f532c40bdba"`
[INFO] running `"docker" "rm" "-f" "9d41d786e9206ead62ee7798fe44a69f8847fc2b9f471c1b2bcd2f532c40bdba"`
[INFO] [stdout] 9d41d786e9206ead62ee7798fe44a69f8847fc2b9f471c1b2bcd2f532c40bdba
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/GlooriousWalrus/learning-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] 5b2ecc11aa196c8b060d09e67649b5bfe6042bd480ce05f41e71352f46183502
[INFO] running `"docker" "start" "-a" "5b2ecc11aa196c8b060d09e67649b5bfe6042bd480ce05f41e71352f46183502"`
[INFO] [stderr]    Compiling bunnies v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `kek`
[INFO] [stderr]    --> src/game/mod.rs:144:17
[INFO] [stderr]     |
[INFO] [stderr] 144 |             let kek = colony.iter().take_while(|x| x.ghoul == false);
[INFO] [stderr]     |                 ^^^ help: consider prefixing with an underscore: `_kek`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]    --> src/game/mod.rs:145:17
[INFO] [stderr]     |
[INFO] [stderr] 145 |             let rng: usize = rand::thread_rng().gen_range(0, colony.len() - 1);
[INFO] [stderr]     |                 ^^^ help: consider prefixing with an underscore: `_rng`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "5b2ecc11aa196c8b060d09e67649b5bfe6042bd480ce05f41e71352f46183502"`
[INFO] running `"docker" "rm" "-f" "5b2ecc11aa196c8b060d09e67649b5bfe6042bd480ce05f41e71352f46183502"`
[INFO] [stdout] 5b2ecc11aa196c8b060d09e67649b5bfe6042bd480ce05f41e71352f46183502
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/GlooriousWalrus/learning-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] 4be88fcdfe5fb8cceb2ef4c53a93fd37a4676ee721ac32f3d9190ec69bd5e6a3
[INFO] running `"docker" "start" "-a" "4be88fcdfe5fb8cceb2ef4c53a93fd37a4676ee721ac32f3d9190ec69bd5e6a3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/bunnies-082b075ceb3ea16f
[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" "4be88fcdfe5fb8cceb2ef4c53a93fd37a4676ee721ac32f3d9190ec69bd5e6a3"`
[INFO] running `"docker" "rm" "-f" "4be88fcdfe5fb8cceb2ef4c53a93fd37a4676ee721ac32f3d9190ec69bd5e6a3"`
[INFO] [stdout] 4be88fcdfe5fb8cceb2ef4c53a93fd37a4676ee721ac32f3d9190ec69bd5e6a3