[INFO] updating cached repository FelixHaller/betweenness
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/FelixHaller/betweenness
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/FelixHaller/betweenness" "work/ex/beta-1.37-6/sources/1.36.0/gh/FelixHaller/betweenness"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/FelixHaller/betweenness'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/FelixHaller/betweenness" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/FelixHaller/betweenness"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/FelixHaller/betweenness'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e3af4d2a93416392435922cda1d99f42fcb6250a
[INFO] sha for GitHub repo FelixHaller/betweenness: e3af4d2a93416392435922cda1d99f42fcb6250a
[INFO] validating manifest of FelixHaller/betweenness on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of FelixHaller/betweenness on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing FelixHaller/betweenness
[INFO] finished frobbing FelixHaller/betweenness
[INFO] frobbed toml for FelixHaller/betweenness written to work/ex/beta-1.37-6/sources/1.36.0/gh/FelixHaller/betweenness/Cargo.toml
[INFO] started frobbing FelixHaller/betweenness
[INFO] finished frobbing FelixHaller/betweenness
[INFO] frobbed toml for FelixHaller/betweenness written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/FelixHaller/betweenness/Cargo.toml
[INFO] crate FelixHaller/betweenness already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing FelixHaller/betweenness against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/FelixHaller/betweenness:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 47377bd663b90fc5a0801d68c830de70546f73ff7929b0955bcc88776bed6f5d
[INFO] running `"docker" "start" "-a" "47377bd663b90fc5a0801d68c830de70546f73ff7929b0955bcc88776bed6f5d"`
[INFO] [stderr]    Compiling roulette v0.1.0
[INFO] [stderr]    Compiling clap v2.29.4
[INFO] [stderr]    Compiling random_choice v0.3.2
[INFO] [stderr]    Compiling betweenness v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `stoch_univ_samp`
[INFO] [stderr]    --> src/main.rs:566:1
[INFO] [stderr]     |
[INFO] [stderr] 566 | fn stoch_univ_samp(parent_population: &Vec<Individual>, to_select: usize) -> Vec<Individual> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.11s
[INFO] running `"docker" "inspect" "47377bd663b90fc5a0801d68c830de70546f73ff7929b0955bcc88776bed6f5d"`
[INFO] running `"docker" "rm" "-f" "47377bd663b90fc5a0801d68c830de70546f73ff7929b0955bcc88776bed6f5d"`
[INFO] [stdout] 47377bd663b90fc5a0801d68c830de70546f73ff7929b0955bcc88776bed6f5d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/FelixHaller/betweenness:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6e4159e0654c9754ab9ee518f4ed057cb38c1fec637312c971d1c72a111e687c
[INFO] running `"docker" "start" "-a" "6e4159e0654c9754ab9ee518f4ed057cb38c1fec637312c971d1c72a111e687c"`
[INFO] [stderr]    Compiling betweenness v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `stoch_univ_samp`
[INFO] [stderr]    --> src/main.rs:566:1
[INFO] [stderr]     |
[INFO] [stderr] 566 | fn stoch_univ_samp(parent_population: &Vec<Individual>, to_select: usize) -> Vec<Individual> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "6e4159e0654c9754ab9ee518f4ed057cb38c1fec637312c971d1c72a111e687c"`
[INFO] running `"docker" "rm" "-f" "6e4159e0654c9754ab9ee518f4ed057cb38c1fec637312c971d1c72a111e687c"`
[INFO] [stdout] 6e4159e0654c9754ab9ee518f4ed057cb38c1fec637312c971d1c72a111e687c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/FelixHaller/betweenness:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 187907aee3b1f5ed1fd7e27e835b7713d6ddbc94ced6e5f76c3e8e5ca12f0aac
[INFO] running `"docker" "start" "-a" "187907aee3b1f5ed1fd7e27e835b7713d6ddbc94ced6e5f76c3e8e5ca12f0aac"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/betweenness-a79c12fc687f6937
[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" "187907aee3b1f5ed1fd7e27e835b7713d6ddbc94ced6e5f76c3e8e5ca12f0aac"`
[INFO] running `"docker" "rm" "-f" "187907aee3b1f5ed1fd7e27e835b7713d6ddbc94ced6e5f76c3e8e5ca12f0aac"`
[INFO] [stdout] 187907aee3b1f5ed1fd7e27e835b7713d6ddbc94ced6e5f76c3e8e5ca12f0aac