Oct 12 15:28:04.832 INFO checking puma3/distributed_recommender against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 15:28:04.832 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-0/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-0/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +4021bd0b3c5815b087d6db10ce461e7e4854ade7-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 12 15:28:05.102 INFO blam! 679ec450409042683c55a7d6009bfd88eddba8ecb7a638527af2d79b7e5cf97b
Oct 12 15:28:05.104 INFO running `"docker" "start" "-a" "679ec450409042683c55a7d6009bfd88eddba8ecb7a638527af2d79b7e5cf97b"`
Oct 12 15:28:05.940 INFO kablam! usermod: no changes
Oct 12 15:28:06.042 INFO kablam!     Checking abomonation v0.4.6
Oct 12 15:28:06.047 INFO kablam!     Checking utilities v0.1.0 (/source/libs/utilities)
Oct 12 15:28:06.047 INFO kablam!     Checking distance v0.1.0 (/source/libs/distance)
Oct 12 15:28:06.047 INFO kablam!     Checking csv v1.0.0-beta.5
Oct 12 15:28:08.149 INFO kablam!     Checking database v0.1.0 (/source/libs/database)
Oct 12 15:28:08.608 INFO kablam! warning: unused `#[macro_use]` import
Oct 12 15:28:08.608 INFO kablam!  --> libs/database/src/lib.rs:4:1
Oct 12 15:28:08.608 INFO kablam!   |
Oct 12 15:28:08.608 INFO kablam! 4 | #[macro_use]
Oct 12 15:28:08.608 INFO kablam!   | ^^^^^^^^^^^^
Oct 12 15:28:08.608 INFO kablam!   |
Oct 12 15:28:08.608 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 15:28:08.608 INFO kablam! 
Oct 12 15:28:08.796 INFO kablam! warning: method is never used: `item_based_recommendation`
Oct 12 15:28:08.796 INFO kablam!    --> libs/database/src/lib.rs:234:5
Oct 12 15:28:08.796 INFO kablam!     |
Oct 12 15:28:08.796 INFO kablam! 234 |     fn item_based_recommendation(&self, movie_id: i32) -> Vec<(i32, f32)> {
Oct 12 15:28:08.796 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:28:08.796 INFO kablam!     |
Oct 12 15:28:08.796 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 12 15:28:08.796 INFO kablam! 
Oct 12 15:28:08.796 INFO kablam! warning: method is never used: `highest_rated_movie`
Oct 12 15:28:08.796 INFO kablam!    --> libs/database/src/lib.rs:250:5
Oct 12 15:28:08.796 INFO kablam!     |
Oct 12 15:28:08.796 INFO kablam! 250 |     fn highest_rated_movie(&self, user_id: i32) -> i32 {
Oct 12 15:28:08.796 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:28:08.796 INFO kablam! 
Oct 12 15:28:08.965 INFO kablam!     Checking timely_communication v0.1.8
Oct 12 15:28:09.800 INFO kablam!     Checking timely v0.3.0
Oct 12 15:28:13.716 INFO kablam!     Checking distributed_recommender v0.1.0 (/source)
Oct 12 15:28:15.457 INFO kablam! warning: unused import: `timely::dataflow::channels::message::Content`
Oct 12 15:28:15.457 INFO kablam!   --> src/main.rs:14:5
Oct 12 15:28:15.458 INFO kablam!    |
Oct 12 15:28:15.458 INFO kablam! 14 | use timely::dataflow::channels::message::Content;
Oct 12 15:28:15.458 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:28:15.459 INFO kablam!    |
Oct 12 15:28:15.459 INFO kablam!    = note: #[warn(unused_imports)] on by default
Oct 12 15:28:15.459 INFO kablam! 
Oct 12 15:28:15.544 INFO kablam! warning: unused import: `timely::dataflow::channels::message::Content`
Oct 12 15:28:15.544 INFO kablam!   --> src/main.rs:14:5
Oct 12 15:28:15.544 INFO kablam!    |
Oct 12 15:28:15.544 INFO kablam! 14 | use timely::dataflow::channels::message::Content;
Oct 12 15:28:15.544 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:28:15.544 INFO kablam!    |
Oct 12 15:28:15.544 INFO kablam!    = note: #[warn(unused_imports)] on by default
Oct 12 15:28:15.544 INFO kablam! 
Oct 12 15:28:15.640 INFO kablam! warning: unused variable: `capability`
Oct 12 15:28:15.640 INFO kablam!   --> src/main.rs:58:59
Oct 12 15:28:15.640 INFO kablam!    |
Oct 12 15:28:15.640 INFO kablam! 58 |                  .unary(Pipeline, "user-user_distances", |capability|
Oct 12 15:28:15.640 INFO kablam!    |                                                           ^^^^^^^^^^ help: consider using `_capability` instead
Oct 12 15:28:15.648 INFO kablam!    |
Oct 12 15:28:15.648 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 12 15:28:15.648 INFO kablam! 
Oct 12 15:28:15.648 INFO kablam! warning: unused variable: `capability`
Oct 12 15:28:15.648 INFO kablam!   --> src/main.rs:78:60
Oct 12 15:28:15.648 INFO kablam!    |
Oct 12 15:28:15.648 INFO kablam! 78 |                  .unary(Pipeline, "user-based_recommend", |capability|
Oct 12 15:28:15.648 INFO kablam!    |                                                            ^^^^^^^^^^ help: consider using `_capability` instead
Oct 12 15:28:15.648 INFO kablam! 
Oct 12 15:28:15.668 INFO kablam! warning: variable does not need to be mutable
Oct 12 15:28:15.668 INFO kablam!   --> src/main.rs:42:13
Oct 12 15:28:15.668 INFO kablam!    |
Oct 12 15:28:15.668 INFO kablam! 42 |         let mut probe = ProbeHandle::new();
Oct 12 15:28:15.668 INFO kablam!    |             ----^^^^^
Oct 12 15:28:15.668 INFO kablam!    |             |
Oct 12 15:28:15.668 INFO kablam!    |             help: remove this `mut`
Oct 12 15:28:15.676 INFO kablam!    |
Oct 12 15:28:15.676 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 12 15:28:15.676 INFO kablam! 
Oct 12 15:28:15.676 INFO kablam! warning: variable does not need to be mutable
Oct 12 15:28:15.676 INFO kablam!   --> src/main.rs:42:13
Oct 12 15:28:15.676 INFO kablam!    |
Oct 12 15:28:15.676 INFO kablam! 42 |         let mut probe = ProbeHandle::new();
Oct 12 15:28:15.676 INFO kablam!    |             ----^^^^^
Oct 12 15:28:15.676 INFO kablam!    |             |
Oct 12 15:28:15.676 INFO kablam!    |             help: remove this `mut`
Oct 12 15:28:15.676 INFO kablam! 
Oct 12 15:28:15.688 INFO kablam! warning: unused variable: `capability`
Oct 12 15:28:15.688 INFO kablam!   --> src/main.rs:58:59
Oct 12 15:28:15.688 INFO kablam!    |
Oct 12 15:28:15.688 INFO kablam! 58 |                  .unary(Pipeline, "user-user_distances", |capability|
Oct 12 15:28:15.688 INFO kablam!    |                                                           ^^^^^^^^^^ help: consider using `_capability` instead
Oct 12 15:28:15.688 INFO kablam!    |
Oct 12 15:28:15.688 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 12 15:28:15.688 INFO kablam! 
Oct 12 15:28:15.688 INFO kablam! warning: unused variable: `capability`
Oct 12 15:28:15.688 INFO kablam!   --> src/main.rs:78:60
Oct 12 15:28:15.688 INFO kablam!    |
Oct 12 15:28:15.688 INFO kablam! 78 |                  .unary(Pipeline, "user-based_recommend", |capability|
Oct 12 15:28:15.688 INFO kablam!    |                                                            ^^^^^^^^^^ help: consider using `_capability` instead
Oct 12 15:28:15.688 INFO kablam! 
Oct 12 15:28:15.705 INFO kablam! warning: variable does not need to be mutable
Oct 12 15:28:15.705 INFO kablam!   --> src/main.rs:42:13
Oct 12 15:28:15.705 INFO kablam!    |
Oct 12 15:28:15.705 INFO kablam! 42 |         let mut probe = ProbeHandle::new();
Oct 12 15:28:15.705 INFO kablam!    |             ----^^^^^
Oct 12 15:28:15.705 INFO kablam!    |             |
Oct 12 15:28:15.705 INFO kablam!    |             help: remove this `mut`
Oct 12 15:28:15.705 INFO kablam!    |
Oct 12 15:28:15.705 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 12 15:28:15.705 INFO kablam! 
Oct 12 15:28:15.705 INFO kablam! warning: variable does not need to be mutable
Oct 12 15:28:15.705 INFO kablam!   --> src/main.rs:42:13
Oct 12 15:28:15.705 INFO kablam!    |
Oct 12 15:28:15.705 INFO kablam! 42 |         let mut probe = ProbeHandle::new();
Oct 12 15:28:15.705 INFO kablam!    |             ----^^^^^
Oct 12 15:28:15.705 INFO kablam!    |             |
Oct 12 15:28:15.705 INFO kablam!    |             help: remove this `mut`
Oct 12 15:28:15.705 INFO kablam! 
Oct 12 15:28:15.747 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 9.78s
Oct 12 15:28:15.752 INFO kablam! su: No module specific data is present
Oct 12 15:28:16.797 INFO running `"docker" "rm" "-f" "679ec450409042683c55a7d6009bfd88eddba8ecb7a638527af2d79b7e5cf97b"`
Oct 12 15:28:17.092 INFO blam! 679ec450409042683c55a7d6009bfd88eddba8ecb7a638527af2d79b7e5cf97b