[INFO] updating cached repository https://github.com/ahu2012/making_recommendations
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b676aae1e4664efbf65bb0680de0d0ab6044ad2b
[INFO] checking ahu2012/making_recommendations against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahu2012%2Fmaking_recommendations" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ahu2012/making_recommendations on toolchain 30ca215b4e38b32aa7abdd635c5e2d56f5724494
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ahu2012/making_recommendations
[INFO] finished tweaking git repo https://github.com/ahu2012/making_recommendations
[INFO] tweaked toml for git repo https://github.com/ahu2012/making_recommendations written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ahu2012/making_recommendations already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7bd5a23d77f9d3a1a89c2dda50375edf496e78c88444cae1cfe928d6882d4363
[INFO] running `"docker" "start" "-a" "7bd5a23d77f9d3a1a89c2dda50375edf496e78c88444cae1cfe928d6882d4363"`
[INFO] [stderr]     Checking making_recommendations v0.1.0 (/opt/rustwide/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]     |
[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] 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]     |
[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 1.56s
[INFO] running `"docker" "inspect" "7bd5a23d77f9d3a1a89c2dda50375edf496e78c88444cae1cfe928d6882d4363"`
[INFO] running `"docker" "rm" "-f" "7bd5a23d77f9d3a1a89c2dda50375edf496e78c88444cae1cfe928d6882d4363"`
[INFO] [stdout] 7bd5a23d77f9d3a1a89c2dda50375edf496e78c88444cae1cfe928d6882d4363