Nov 28 00:17:01.935 INFO checking mplanchard/combinations against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 00:17:01.936 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-5/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 00:17:02.784 INFO [stdout] 4d0f25e428ea1d1110c29815b1d59363ae3aabf69848b7d89b6127fdcefbe160
Nov 28 00:17:02.790 INFO running `"docker" "start" "-a" "4d0f25e428ea1d1110c29815b1d59363ae3aabf69848b7d89b6127fdcefbe160"`
Nov 28 00:17:04.041 INFO [stderr] usermod: no changes
Nov 28 00:17:04.360 INFO [stderr]    Compiling num-bigint v0.2.1
Nov 28 00:17:04.360 INFO [stderr]    Compiling num-complex v0.2.1
Nov 28 00:17:08.838 INFO [stderr]     Checking num-rational v0.2.1
Nov 28 00:17:09.674 INFO [stderr]     Checking num v0.2.0
Nov 28 00:17:09.972 INFO [stderr]     Checking combinations v0.1.0 (/source)
Nov 28 00:17:10.339 INFO [stderr] warning: unused import: `std::slice`
Nov 28 00:17:10.342 INFO [stderr]  --> src/main.rs:6:5
Nov 28 00:17:10.342 INFO [stderr]   |
Nov 28 00:17:10.342 INFO [stderr] 6 | use std::slice;
Nov 28 00:17:10.342 INFO [stderr]   |     ^^^^^^^^^^
Nov 28 00:17:10.342 INFO [stderr]   |
Nov 28 00:17:10.342 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 00:17:10.342 INFO [stderr] 
Nov 28 00:17:10.420 INFO [stderr] warning: unused import: `std::slice`
Nov 28 00:17:10.420 INFO [stderr]  --> src/main.rs:6:5
Nov 28 00:17:10.420 INFO [stderr]   |
Nov 28 00:17:10.420 INFO [stderr] 6 | use std::slice;
Nov 28 00:17:10.420 INFO [stderr]   |     ^^^^^^^^^^
Nov 28 00:17:10.420 INFO [stderr]   |
Nov 28 00:17:10.420 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 00:17:10.420 INFO [stderr] 
Nov 28 00:17:10.440 INFO [stderr] warning: unused variable: `slice_one`
Nov 28 00:17:10.440 INFO [stderr]    --> src/main.rs:123:9
Nov 28 00:17:10.440 INFO [stderr]     |
Nov 28 00:17:10.440 INFO [stderr] 123 |     let slice_one: &[i32] = &[1, 2, 3, 4, 5];
Nov 28 00:17:10.440 INFO [stderr]     |         ^^^^^^^^^ help: consider using `_slice_one` instead
Nov 28 00:17:10.440 INFO [stderr]     |
Nov 28 00:17:10.440 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 28 00:17:10.440 INFO [stderr] 
Nov 28 00:17:10.440 INFO [stderr] warning: unused variable: `slice_two`
Nov 28 00:17:10.440 INFO [stderr]    --> src/main.rs:124:9
Nov 28 00:17:10.440 INFO [stderr]     |
Nov 28 00:17:10.440 INFO [stderr] 124 |     let slice_two: &[i32] = &[3, 4];
Nov 28 00:17:10.440 INFO [stderr]     |         ^^^^^^^^^ help: consider using `_slice_two` instead
Nov 28 00:17:10.440 INFO [stderr] 
Nov 28 00:17:10.467 INFO [stderr] warning: function is never used: `num_combinations`
Nov 28 00:17:10.467 INFO [stderr]   --> src/main.rs:19:1
Nov 28 00:17:10.467 INFO [stderr]    |
Nov 28 00:17:10.467 INFO [stderr] 19 | fn num_combinations(num_items: u64, take: u64) -> BigUint {
Nov 28 00:17:10.467 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:17:10.467 INFO [stderr] 
Nov 28 00:17:10.469 INFO [stderr] warning: function is never used: `print`
Nov 28 00:17:10.469 INFO [stderr]   --> src/main.rs:62:1
Nov 28 00:17:10.469 INFO [stderr]    |
Nov 28 00:17:10.469 INFO [stderr] 62 | fn print<T: Iterator + std::fmt::Debug>(thing: T) -> T{
Nov 28 00:17:10.469 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:17:10.469 INFO [stderr] 
Nov 28 00:17:10.508 INFO [stderr] warning: unused variable: `slice_one`
Nov 28 00:17:10.508 INFO [stderr]    --> src/main.rs:123:9
Nov 28 00:17:10.508 INFO [stderr]     |
Nov 28 00:17:10.508 INFO [stderr] 123 |     let slice_one: &[i32] = &[1, 2, 3, 4, 5];
Nov 28 00:17:10.508 INFO [stderr]     |         ^^^^^^^^^ help: consider using `_slice_one` instead
Nov 28 00:17:10.508 INFO [stderr]     |
Nov 28 00:17:10.508 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 28 00:17:10.508 INFO [stderr] 
Nov 28 00:17:10.508 INFO [stderr] warning: unused variable: `slice_two`
Nov 28 00:17:10.508 INFO [stderr]    --> src/main.rs:124:9
Nov 28 00:17:10.508 INFO [stderr]     |
Nov 28 00:17:10.508 INFO [stderr] 124 |     let slice_two: &[i32] = &[3, 4];
Nov 28 00:17:10.508 INFO [stderr]     |         ^^^^^^^^^ help: consider using `_slice_two` instead
Nov 28 00:17:10.508 INFO [stderr] 
Nov 28 00:17:10.532 INFO [stderr] warning: function is never used: `num_combinations`
Nov 28 00:17:10.532 INFO [stderr]   --> src/main.rs:19:1
Nov 28 00:17:10.532 INFO [stderr]    |
Nov 28 00:17:10.532 INFO [stderr] 19 | fn num_combinations(num_items: u64, take: u64) -> BigUint {
Nov 28 00:17:10.532 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:17:10.532 INFO [stderr] 
Nov 28 00:17:10.532 INFO [stderr] warning: function is never used: `print`
Nov 28 00:17:10.532 INFO [stderr]   --> src/main.rs:62:1
Nov 28 00:17:10.532 INFO [stderr]    |
Nov 28 00:17:10.532 INFO [stderr] 62 | fn print<T: Iterator + std::fmt::Debug>(thing: T) -> T{
Nov 28 00:17:10.532 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 00:17:10.532 INFO [stderr] 
Nov 28 00:17:10.546 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.47s
Nov 28 00:17:10.549 INFO [stderr] su: No module specific data is present
Nov 28 00:17:13.319 INFO running `"docker" "inspect" "4d0f25e428ea1d1110c29815b1d59363ae3aabf69848b7d89b6127fdcefbe160"`
Nov 28 00:17:13.473 INFO running `"docker" "rm" "-f" "4d0f25e428ea1d1110c29815b1d59363ae3aabf69848b7d89b6127fdcefbe160"`
Nov 28 00:17:13.607 INFO [stdout] 4d0f25e428ea1d1110c29815b1d59363ae3aabf69848b7d89b6127fdcefbe160