[INFO] updating cached repository ahu2012/making_recommendations
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ahu2012/making_recommendations
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ahu2012/making_recommendations" "work/ex/beta-1.38-1/sources/1.37.0/gh/ahu2012/making_recommendations"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ahu2012/making_recommendations'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ahu2012/making_recommendations" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ahu2012/making_recommendations"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ahu2012/making_recommendations'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b676aae1e4664efbf65bb0680de0d0ab6044ad2b
[INFO] sha for GitHub repo ahu2012/making_recommendations: b676aae1e4664efbf65bb0680de0d0ab6044ad2b
[INFO] validating manifest of ahu2012/making_recommendations 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 ahu2012/making_recommendations 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 ahu2012/making_recommendations
[INFO] finished frobbing ahu2012/making_recommendations
[INFO] frobbed toml for ahu2012/making_recommendations written to work/ex/beta-1.38-1/sources/1.37.0/gh/ahu2012/making_recommendations/Cargo.toml
[INFO] started frobbing ahu2012/making_recommendations
[INFO] finished frobbing ahu2012/making_recommendations
[INFO] frobbed toml for ahu2012/making_recommendations written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ahu2012/making_recommendations/Cargo.toml
[INFO] crate ahu2012/making_recommendations 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 ahu2012/making_recommendations 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ahu2012/making_recommendations:/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] d69141b5b1d56a8989583ba1996b9cd1bbf4ec03f609ad8b316319cef58ac19e
[INFO] running `"docker" "start" "-a" "d69141b5b1d56a8989583ba1996b9cd1bbf4ec03f609ad8b316319cef58ac19e"`
[INFO] [stderr]    Compiling making_recommendations v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:135:34
[INFO] [stderr]     |
[INFO] [stderr] 135 |                  similarity_func: &Fn(&HashMap<&'static str, HashMap<&'static str, f64>>,
[INFO] [stderr]     |  __________________________________^
[INFO] [stderr] 136 | |                                     &str, &str) -> f64) -> Vec<(&'static str, f64)>
[INFO] [stderr]     | |______________________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 135 |                similarity_func: &dyn Fn(&HashMap<&'static str, HashMap<&'static str, f64>>,
[INFO] [stderr] 136 |                                     &str, &str) -> f64) -> Vec<(&'static str, f64)>
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:154:42
[INFO] [stderr]     |
[INFO] [stderr] 154 |                          similarity_func: &Fn(&HashMap<&'static str, HashMap<&'static str, f64>>,
[INFO] [stderr]     |  __________________________________________^
[INFO] [stderr] 155 | |                                             &str, &str) -> f64) -> Vec<(&'static str, f64)>
[INFO] [stderr]     | |______________________________________________________________^
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 154 |                        similarity_func: &dyn Fn(&HashMap<&'static str, HashMap<&'static str, f64>>,
[INFO] [stderr] 155 |                                             &str, &str) -> f64) -> Vec<(&'static str, f64)>
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.84s
[INFO] running `"docker" "inspect" "d69141b5b1d56a8989583ba1996b9cd1bbf4ec03f609ad8b316319cef58ac19e"`
[INFO] running `"docker" "rm" "-f" "d69141b5b1d56a8989583ba1996b9cd1bbf4ec03f609ad8b316319cef58ac19e"`
[INFO] [stdout] d69141b5b1d56a8989583ba1996b9cd1bbf4ec03f609ad8b316319cef58ac19e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ahu2012/making_recommendations:/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] 80731ce8ad974c899eb3f74b34fe2d579e8e6e42236c686919649c7cfbea216c
[INFO] running `"docker" "start" "-a" "80731ce8ad974c899eb3f74b34fe2d579e8e6e42236c686919649c7cfbea216c"`
[INFO] [stderr]    Compiling making_recommendations v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:135:34
[INFO] [stderr]     |
[INFO] [stderr] 135 |                  similarity_func: &Fn(&HashMap<&'static str, HashMap<&'static str, f64>>,
[INFO] [stderr]     |  __________________________________^
[INFO] [stderr] 136 | |                                     &str, &str) -> f64) -> Vec<(&'static str, f64)>
[INFO] [stderr]     | |______________________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 135 |                similarity_func: &dyn Fn(&HashMap<&'static str, HashMap<&'static str, f64>>,
[INFO] [stderr] 136 |                                     &str, &str) -> f64) -> Vec<(&'static str, f64)>
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:154:42
[INFO] [stderr]     |
[INFO] [stderr] 154 |                          similarity_func: &Fn(&HashMap<&'static str, HashMap<&'static str, f64>>,
[INFO] [stderr]     |  __________________________________________^
[INFO] [stderr] 155 | |                                             &str, &str) -> f64) -> Vec<(&'static str, f64)>
[INFO] [stderr]     | |______________________________________________________________^
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 154 |                        similarity_func: &dyn Fn(&HashMap<&'static str, HashMap<&'static str, f64>>,
[INFO] [stderr] 155 |                                             &str, &str) -> f64) -> Vec<(&'static str, f64)>
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "80731ce8ad974c899eb3f74b34fe2d579e8e6e42236c686919649c7cfbea216c"`
[INFO] running `"docker" "rm" "-f" "80731ce8ad974c899eb3f74b34fe2d579e8e6e42236c686919649c7cfbea216c"`
[INFO] [stdout] 80731ce8ad974c899eb3f74b34fe2d579e8e6e42236c686919649c7cfbea216c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ahu2012/making_recommendations:/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] 2f5c142a74e1479e5979ed18e2ef74d6e0506b9b1a85c689f9ce5d62951b22f3
[INFO] running `"docker" "start" "-a" "2f5c142a74e1479e5979ed18e2ef74d6e0506b9b1a85c689f9ce5d62951b22f3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/making_recommendations-21e07ba1d32d51b5
[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" "2f5c142a74e1479e5979ed18e2ef74d6e0506b9b1a85c689f9ce5d62951b22f3"`
[INFO] running `"docker" "rm" "-f" "2f5c142a74e1479e5979ed18e2ef74d6e0506b9b1a85c689f9ce5d62951b22f3"`
[INFO] [stdout] 2f5c142a74e1479e5979ed18e2ef74d6e0506b9b1a85c689f9ce5d62951b22f3