[INFO] updating cached repository kurikaesu/Rust-Iterative-MergeSort
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kurikaesu/Rust-Iterative-MergeSort
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kurikaesu/Rust-Iterative-MergeSort" "work/ex/beta-1.38-1/sources/1.37.0/gh/kurikaesu/Rust-Iterative-MergeSort"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/kurikaesu/Rust-Iterative-MergeSort'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kurikaesu/Rust-Iterative-MergeSort" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kurikaesu/Rust-Iterative-MergeSort"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kurikaesu/Rust-Iterative-MergeSort'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f2f48105720814f8309187f541f0ee6ab6404f0a
[INFO] sha for GitHub repo kurikaesu/Rust-Iterative-MergeSort: f2f48105720814f8309187f541f0ee6ab6404f0a
[INFO] validating manifest of kurikaesu/Rust-Iterative-MergeSort 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 kurikaesu/Rust-Iterative-MergeSort 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 kurikaesu/Rust-Iterative-MergeSort
[INFO] finished frobbing kurikaesu/Rust-Iterative-MergeSort
[INFO] frobbed toml for kurikaesu/Rust-Iterative-MergeSort written to work/ex/beta-1.38-1/sources/1.37.0/gh/kurikaesu/Rust-Iterative-MergeSort/Cargo.toml
[INFO] started frobbing kurikaesu/Rust-Iterative-MergeSort
[INFO] finished frobbing kurikaesu/Rust-Iterative-MergeSort
[INFO] frobbed toml for kurikaesu/Rust-Iterative-MergeSort written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kurikaesu/Rust-Iterative-MergeSort/Cargo.toml
[INFO] crate kurikaesu/Rust-Iterative-MergeSort 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 kurikaesu/Rust-Iterative-MergeSort 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/kurikaesu/Rust-Iterative-MergeSort:/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] acaa8142cd230cb6815e4ee0c614385b3d518e1e0f976ffb973b659d57461730
[INFO] running `"docker" "start" "-a" "acaa8142cd230cb6815e4ee0c614385b3d518e1e0f976ffb973b659d57461730"`
[INFO] [stderr]    Compiling MergeSortIterative v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: crate `MergeSortIterative` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `merge_sort_iterative`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `"docker" "inspect" "acaa8142cd230cb6815e4ee0c614385b3d518e1e0f976ffb973b659d57461730"`
[INFO] running `"docker" "rm" "-f" "acaa8142cd230cb6815e4ee0c614385b3d518e1e0f976ffb973b659d57461730"`
[INFO] [stdout] acaa8142cd230cb6815e4ee0c614385b3d518e1e0f976ffb973b659d57461730
[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/kurikaesu/Rust-Iterative-MergeSort:/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] 190bb632b34256b4e9e99fbc4cc03ce8d70dc8cb2b139b6344a4fa645ed4eb19
[INFO] running `"docker" "start" "-a" "190bb632b34256b4e9e99fbc4cc03ce8d70dc8cb2b139b6344a4fa645ed4eb19"`
[INFO] [stderr]    Compiling MergeSortIterative v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: crate `MergeSortIterative` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `merge_sort_iterative`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `"docker" "inspect" "190bb632b34256b4e9e99fbc4cc03ce8d70dc8cb2b139b6344a4fa645ed4eb19"`
[INFO] running `"docker" "rm" "-f" "190bb632b34256b4e9e99fbc4cc03ce8d70dc8cb2b139b6344a4fa645ed4eb19"`
[INFO] [stdout] 190bb632b34256b4e9e99fbc4cc03ce8d70dc8cb2b139b6344a4fa645ed4eb19
[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/kurikaesu/Rust-Iterative-MergeSort:/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] 66d3ec7cd9498278e637069e14ac78a2d5d5c45d8c7c519fe893ac4cb6c16a56
[INFO] running `"docker" "start" "-a" "66d3ec7cd9498278e637069e14ac78a2d5d5c45d8c7c519fe893ac4cb6c16a56"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/MergeSortIterative-d3cdac8c4af17b96
[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" "66d3ec7cd9498278e637069e14ac78a2d5d5c45d8c7c519fe893ac4cb6c16a56"`
[INFO] running `"docker" "rm" "-f" "66d3ec7cd9498278e637069e14ac78a2d5d5c45d8c7c519fe893ac4cb6c16a56"`
[INFO] [stdout] 66d3ec7cd9498278e637069e14ac78a2d5d5c45d8c7c519fe893ac4cb6c16a56