[INFO] updating cached repository malcp/rs-algorithms
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/malcp/rs-algorithms
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/malcp/rs-algorithms" "work/ex/beta-1.38-1/sources/1.37.0/gh/malcp/rs-algorithms"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/malcp/rs-algorithms'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/malcp/rs-algorithms" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/malcp/rs-algorithms"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/malcp/rs-algorithms'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 632334b13d77df826ecd470718e6cdb867b1f1de
[INFO] sha for GitHub repo malcp/rs-algorithms: 632334b13d77df826ecd470718e6cdb867b1f1de
[INFO] validating manifest of malcp/rs-algorithms 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 malcp/rs-algorithms 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 malcp/rs-algorithms
[INFO] finished frobbing malcp/rs-algorithms
[INFO] frobbed toml for malcp/rs-algorithms written to work/ex/beta-1.38-1/sources/1.37.0/gh/malcp/rs-algorithms/Cargo.toml
[INFO] started frobbing malcp/rs-algorithms
[INFO] finished frobbing malcp/rs-algorithms
[INFO] frobbed toml for malcp/rs-algorithms written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/malcp/rs-algorithms/Cargo.toml
[INFO] crate malcp/rs-algorithms 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 malcp/rs-algorithms against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/malcp/rs-algorithms:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] ce9cc3d4b079f6d873e511583226ad62ca07f78e74ffa7022bd69d19355ea504
[INFO] running `"docker" "start" "-a" "ce9cc3d4b079f6d873e511583226ad62ca07f78e74ffa7022bd69d19355ea504"`
[INFO] [stderr]    Compiling rs-algorithms v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `sort`
[INFO] [stderr]  --> src/selection.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn sort(array: &mut [i64]) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "ce9cc3d4b079f6d873e511583226ad62ca07f78e74ffa7022bd69d19355ea504"`
[INFO] running `"docker" "rm" "-f" "ce9cc3d4b079f6d873e511583226ad62ca07f78e74ffa7022bd69d19355ea504"`
[INFO] [stdout] ce9cc3d4b079f6d873e511583226ad62ca07f78e74ffa7022bd69d19355ea504
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/malcp/rs-algorithms:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5682a984b9db574307e871b004023e15183d7f17c939df44c5df268ee55a968d
[INFO] running `"docker" "start" "-a" "5682a984b9db574307e871b004023e15183d7f17c939df44c5df268ee55a968d"`
[INFO] [stderr]    Compiling rs-algorithms v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `"docker" "inspect" "5682a984b9db574307e871b004023e15183d7f17c939df44c5df268ee55a968d"`
[INFO] running `"docker" "rm" "-f" "5682a984b9db574307e871b004023e15183d7f17c939df44c5df268ee55a968d"`
[INFO] [stdout] 5682a984b9db574307e871b004023e15183d7f17c939df44c5df268ee55a968d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/malcp/rs-algorithms:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 2df0305bc0755633e959f446c5b8a24dbde4e78e7c81e964fb662ecc47388ad6
[INFO] running `"docker" "start" "-a" "2df0305bc0755633e959f446c5b8a24dbde4e78e7c81e964fb662ecc47388ad6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rs_algorithms-b6799b16522e5363
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test selection::test::should_work_with_negative_values ... ok
[INFO] [stdout] test selection::test::should_work_with_sorted_collection ... ok
[INFO] [stdout] test selection::test::should_work_with_repeated_values ... ok
[INFO] [stdout] test selection::test::should_work_with_unsorted_collection ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rs-algorithms
[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" "2df0305bc0755633e959f446c5b8a24dbde4e78e7c81e964fb662ecc47388ad6"`
[INFO] running `"docker" "rm" "-f" "2df0305bc0755633e959f446c5b8a24dbde4e78e7c81e964fb662ecc47388ad6"`
[INFO] [stdout] 2df0305bc0755633e959f446c5b8a24dbde4e78e7c81e964fb662ecc47388ad6