Dec 04 13:47:06.246 INFO checking mplanchard/combinations against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 13:47:06.246 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 04 13:47:06.780 INFO [stdout] 4a15e6c1ccf5dece9404213a1c3b94726d36698cb68dafbd621332afd200fb7f
Dec 04 13:47:06.782 INFO running `"docker" "start" "-a" "4a15e6c1ccf5dece9404213a1c3b94726d36698cb68dafbd621332afd200fb7f"`
Dec 04 13:47:08.359 INFO [stderr] usermod: no changes
Dec 04 13:47:08.465 INFO [stderr]    Compiling num-bigint v0.2.1
Dec 04 13:47:12.017 INFO [stderr]     Checking num-rational v0.2.1
Dec 04 13:47:12.856 INFO [stderr]     Checking num v0.2.0
Dec 04 13:47:13.237 INFO [stderr]     Checking combinations v0.1.0 (/source)
Dec 04 13:47:13.643 INFO [stderr] warning: unused import: `std::slice`
Dec 04 13:47:13.643 INFO [stderr]  --> src/main.rs:6:5
Dec 04 13:47:13.643 INFO [stderr]   |
Dec 04 13:47:13.644 INFO [stderr] 6 | use std::slice;
Dec 04 13:47:13.644 INFO [stderr]   |     ^^^^^^^^^^
Dec 04 13:47:13.644 INFO [stderr]   |
Dec 04 13:47:13.645 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 13:47:13.645 INFO [stderr] 
Dec 04 13:47:13.765 INFO [stderr] warning: unused variable: `slice_one`
Dec 04 13:47:13.765 INFO [stderr]    --> src/main.rs:123:9
Dec 04 13:47:13.765 INFO [stderr]     |
Dec 04 13:47:13.765 INFO [stderr] 123 |     let slice_one: &[i32] = &[1, 2, 3, 4, 5];
Dec 04 13:47:13.765 INFO [stderr]     |         ^^^^^^^^^ help: consider using `_slice_one` instead
Dec 04 13:47:13.765 INFO [stderr]     |
Dec 04 13:47:13.766 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 04 13:47:13.766 INFO [stderr] 
Dec 04 13:47:13.766 INFO [stderr] warning: unused variable: `slice_two`
Dec 04 13:47:13.766 INFO [stderr]    --> src/main.rs:124:9
Dec 04 13:47:13.766 INFO [stderr]     |
Dec 04 13:47:13.766 INFO [stderr] 124 |     let slice_two: &[i32] = &[3, 4];
Dec 04 13:47:13.766 INFO [stderr]     |         ^^^^^^^^^ help: consider using `_slice_two` instead
Dec 04 13:47:13.767 INFO [stderr] 
Dec 04 13:47:13.804 INFO [stderr] warning: function is never used: `num_combinations`
Dec 04 13:47:13.804 INFO [stderr]   --> src/main.rs:19:1
Dec 04 13:47:13.804 INFO [stderr]    |
Dec 04 13:47:13.805 INFO [stderr] 19 | fn num_combinations(num_items: u64, take: u64) -> BigUint {
Dec 04 13:47:13.805 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:47:13.805 INFO [stderr] 
Dec 04 13:47:13.805 INFO [stderr] warning: function is never used: `print`
Dec 04 13:47:13.805 INFO [stderr]   --> src/main.rs:62:1
Dec 04 13:47:13.805 INFO [stderr]    |
Dec 04 13:47:13.805 INFO [stderr] 62 | fn print<T: Iterator + std::fmt::Debug>(thing: T) -> T{
Dec 04 13:47:13.805 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:47:13.805 INFO [stderr] 
Dec 04 13:47:13.812 INFO [stderr] warning: unused import: `std::slice`
Dec 04 13:47:13.812 INFO [stderr]  --> src/main.rs:6:5
Dec 04 13:47:13.812 INFO [stderr]   |
Dec 04 13:47:13.812 INFO [stderr] 6 | use std::slice;
Dec 04 13:47:13.812 INFO [stderr]   |     ^^^^^^^^^^
Dec 04 13:47:13.812 INFO [stderr]   |
Dec 04 13:47:13.812 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 13:47:13.812 INFO [stderr] 
Dec 04 13:47:13.908 INFO [stderr] warning: unused variable: `slice_one`
Dec 04 13:47:13.908 INFO [stderr]    --> src/main.rs:123:9
Dec 04 13:47:13.908 INFO [stderr]     |
Dec 04 13:47:13.908 INFO [stderr] 123 |     let slice_one: &[i32] = &[1, 2, 3, 4, 5];
Dec 04 13:47:13.908 INFO [stderr]     |         ^^^^^^^^^ help: consider using `_slice_one` instead
Dec 04 13:47:13.908 INFO [stderr]     |
Dec 04 13:47:13.908 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 04 13:47:13.908 INFO [stderr] 
Dec 04 13:47:13.908 INFO [stderr] warning: unused variable: `slice_two`
Dec 04 13:47:13.908 INFO [stderr]    --> src/main.rs:124:9
Dec 04 13:47:13.908 INFO [stderr]     |
Dec 04 13:47:13.908 INFO [stderr] 124 |     let slice_two: &[i32] = &[3, 4];
Dec 04 13:47:13.908 INFO [stderr]     |         ^^^^^^^^^ help: consider using `_slice_two` instead
Dec 04 13:47:13.908 INFO [stderr] 
Dec 04 13:47:13.932 INFO [stderr] warning: function is never used: `num_combinations`
Dec 04 13:47:13.932 INFO [stderr]   --> src/main.rs:19:1
Dec 04 13:47:13.932 INFO [stderr]    |
Dec 04 13:47:13.932 INFO [stderr] 19 | fn num_combinations(num_items: u64, take: u64) -> BigUint {
Dec 04 13:47:13.932 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:47:13.932 INFO [stderr] 
Dec 04 13:47:13.932 INFO [stderr] warning: function is never used: `print`
Dec 04 13:47:13.932 INFO [stderr]   --> src/main.rs:62:1
Dec 04 13:47:13.932 INFO [stderr]    |
Dec 04 13:47:13.932 INFO [stderr] 62 | fn print<T: Iterator + std::fmt::Debug>(thing: T) -> T{
Dec 04 13:47:13.932 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 13:47:13.932 INFO [stderr] 
Dec 04 13:47:13.975 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.57s
Dec 04 13:47:13.979 INFO [stderr] su: No module specific data is present
Dec 04 13:47:15.168 INFO running `"docker" "inspect" "4a15e6c1ccf5dece9404213a1c3b94726d36698cb68dafbd621332afd200fb7f"`
Dec 04 13:47:15.496 INFO running `"docker" "rm" "-f" "4a15e6c1ccf5dece9404213a1c3b94726d36698cb68dafbd621332afd200fb7f"`
Dec 04 13:47:15.943 INFO [stdout] 4a15e6c1ccf5dece9404213a1c3b94726d36698cb68dafbd621332afd200fb7f