[INFO] updating cached repository alvinmatias69/simulated_annealing
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/alvinmatias69/simulated_annealing
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/alvinmatias69/simulated_annealing" "work/ex/beta-1.38-1/sources/1.37.0/gh/alvinmatias69/simulated_annealing"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/alvinmatias69/simulated_annealing'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/alvinmatias69/simulated_annealing" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alvinmatias69/simulated_annealing"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alvinmatias69/simulated_annealing'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] aa0e88b0dc2e8804d331e493417c8550744b674d
[INFO] sha for GitHub repo alvinmatias69/simulated_annealing: aa0e88b0dc2e8804d331e493417c8550744b674d
[INFO] validating manifest of alvinmatias69/simulated_annealing 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 alvinmatias69/simulated_annealing 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 alvinmatias69/simulated_annealing
[INFO] finished frobbing alvinmatias69/simulated_annealing
[INFO] frobbed toml for alvinmatias69/simulated_annealing written to work/ex/beta-1.38-1/sources/1.37.0/gh/alvinmatias69/simulated_annealing/Cargo.toml
[INFO] started frobbing alvinmatias69/simulated_annealing
[INFO] finished frobbing alvinmatias69/simulated_annealing
[INFO] frobbed toml for alvinmatias69/simulated_annealing written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alvinmatias69/simulated_annealing/Cargo.toml
[INFO] crate alvinmatias69/simulated_annealing 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 alvinmatias69/simulated_annealing 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/alvinmatias69/simulated_annealing:/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] 70e57116215b09bf09478791bec8bd1a8b5ff7df31b42c10512be1f352d5edf1
[INFO] running `"docker" "start" "-a" "70e57116215b09bf09478791bec8bd1a8b5ff7df31b42c10512be1f352d5edf1"`
[INFO] [stderr]    Compiling rand v0.3.16
[INFO] [stderr]    Compiling simulated_annealing v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |         for i in 0..100 {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.52s
[INFO] running `"docker" "inspect" "70e57116215b09bf09478791bec8bd1a8b5ff7df31b42c10512be1f352d5edf1"`
[INFO] running `"docker" "rm" "-f" "70e57116215b09bf09478791bec8bd1a8b5ff7df31b42c10512be1f352d5edf1"`
[INFO] [stdout] 70e57116215b09bf09478791bec8bd1a8b5ff7df31b42c10512be1f352d5edf1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/alvinmatias69/simulated_annealing:/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] 30fb12d5e49ebb4840e22e43f41c14325fdb1d0b50aca2c1d50d1890a1be5521
[INFO] running `"docker" "start" "-a" "30fb12d5e49ebb4840e22e43f41c14325fdb1d0b50aca2c1d50d1890a1be5521"`
[INFO] [stderr]    Compiling simulated_annealing v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |         for i in 0..100 {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "30fb12d5e49ebb4840e22e43f41c14325fdb1d0b50aca2c1d50d1890a1be5521"`
[INFO] running `"docker" "rm" "-f" "30fb12d5e49ebb4840e22e43f41c14325fdb1d0b50aca2c1d50d1890a1be5521"`
[INFO] [stdout] 30fb12d5e49ebb4840e22e43f41c14325fdb1d0b50aca2c1d50d1890a1be5521
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/alvinmatias69/simulated_annealing:/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] 5fae32db5f7b7942238742932539496c31c63c6c2408a149a0215758c6bb59ee
[INFO] running `"docker" "start" "-a" "5fae32db5f7b7942238742932539496c31c63c6c2408a149a0215758c6bb59ee"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/simulated_annealing-d6a0ad4f1034bbfa
[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" "5fae32db5f7b7942238742932539496c31c63c6c2408a149a0215758c6bb59ee"`
[INFO] running `"docker" "rm" "-f" "5fae32db5f7b7942238742932539496c31c63c6c2408a149a0215758c6bb59ee"`
[INFO] [stdout] 5fae32db5f7b7942238742932539496c31c63c6c2408a149a0215758c6bb59ee