Dec 19 12:22:20.081 INFO checking mplanchard/combinations against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 12:22:20.081 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/mplanchard/combinations:/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=forbid" "-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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 12:22:20.301 INFO [stdout] 69223e9848a1bccff6f79d9d67105b8461c45657927a4b3fbdde32f1ab8c9470
Dec 19 12:22:20.306 INFO running `"docker" "start" "-a" "69223e9848a1bccff6f79d9d67105b8461c45657927a4b3fbdde32f1ab8c9470"`
Dec 19 12:22:21.035 INFO [stderr]     Checking num-integer v0.1.39
Dec 19 12:22:21.037 INFO [stderr]     Checking num-complex v0.2.1
Dec 19 12:22:21.689 INFO [stderr]     Checking num-bigint v0.2.1
Dec 19 12:22:21.689 INFO [stderr]     Checking num-iter v0.1.37
Dec 19 12:22:23.844 INFO [stderr]     Checking num-rational v0.2.1
Dec 19 12:22:24.646 INFO [stderr]     Checking num v0.2.0
Dec 19 12:22:24.847 INFO [stderr]     Checking combinations v0.1.0 (/opt/crater/workdir)
Dec 19 12:22:25.184 INFO [stderr] warning: unused import: `std::slice`
Dec 19 12:22:25.184 INFO [stderr]  --> src/main.rs:6:5
Dec 19 12:22:25.184 INFO [stderr]   |
Dec 19 12:22:25.184 INFO [stderr] 6 | use std::slice;
Dec 19 12:22:25.184 INFO [stderr]   |     ^^^^^^^^^^
Dec 19 12:22:25.184 INFO [stderr]   |
Dec 19 12:22:25.184 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 12:22:25.184 INFO [stderr] 
Dec 19 12:22:25.316 INFO [stderr] warning: unused variable: `slice_one`
Dec 19 12:22:25.316 INFO [stderr]    --> src/main.rs:123:9
Dec 19 12:22:25.316 INFO [stderr]     |
Dec 19 12:22:25.316 INFO [stderr] 123 |     let slice_one: &[i32] = &[1, 2, 3, 4, 5];
Dec 19 12:22:25.316 INFO [stderr]     |         ^^^^^^^^^ help: consider using `_slice_one` instead
Dec 19 12:22:25.316 INFO [stderr]     |
Dec 19 12:22:25.316 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 12:22:25.316 INFO [stderr] 
Dec 19 12:22:25.316 INFO [stderr] warning: unused variable: `slice_two`
Dec 19 12:22:25.316 INFO [stderr]    --> src/main.rs:124:9
Dec 19 12:22:25.316 INFO [stderr]     |
Dec 19 12:22:25.316 INFO [stderr] 124 |     let slice_two: &[i32] = &[3, 4];
Dec 19 12:22:25.316 INFO [stderr]     |         ^^^^^^^^^ help: consider using `_slice_two` instead
Dec 19 12:22:25.316 INFO [stderr] 
Dec 19 12:22:25.356 INFO [stderr] warning: unused import: `std::slice`
Dec 19 12:22:25.356 INFO [stderr]  --> src/main.rs:6:5
Dec 19 12:22:25.356 INFO [stderr]   |
Dec 19 12:22:25.356 INFO [stderr] 6 | use std::slice;
Dec 19 12:22:25.356 INFO [stderr]   |     ^^^^^^^^^^
Dec 19 12:22:25.356 INFO [stderr]   |
Dec 19 12:22:25.356 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 12:22:25.356 INFO [stderr] 
Dec 19 12:22:25.363 INFO [stderr] warning: function is never used: `num_combinations`
Dec 19 12:22:25.363 INFO [stderr]   --> src/main.rs:19:1
Dec 19 12:22:25.363 INFO [stderr]    |
Dec 19 12:22:25.363 INFO [stderr] 19 | fn num_combinations(num_items: u64, take: u64) -> BigUint {
Dec 19 12:22:25.363 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:22:25.363 INFO [stderr] 
Dec 19 12:22:25.363 INFO [stderr] warning: function is never used: `print`
Dec 19 12:22:25.363 INFO [stderr]   --> src/main.rs:62:1
Dec 19 12:22:25.363 INFO [stderr]    |
Dec 19 12:22:25.363 INFO [stderr] 62 | fn print<T: Iterator + std::fmt::Debug>(thing: T) -> T{
Dec 19 12:22:25.363 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:22:25.363 INFO [stderr] 
Dec 19 12:22:25.530 INFO [stderr] warning: unused variable: `slice_one`
Dec 19 12:22:25.530 INFO [stderr]    --> src/main.rs:123:9
Dec 19 12:22:25.530 INFO [stderr]     |
Dec 19 12:22:25.531 INFO [stderr] 123 |     let slice_one: &[i32] = &[1, 2, 3, 4, 5];
Dec 19 12:22:25.531 INFO [stderr]     |         ^^^^^^^^^ help: consider using `_slice_one` instead
Dec 19 12:22:25.531 INFO [stderr]     |
Dec 19 12:22:25.532 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 12:22:25.532 INFO [stderr] 
Dec 19 12:22:25.532 INFO [stderr] warning: unused variable: `slice_two`
Dec 19 12:22:25.532 INFO [stderr]    --> src/main.rs:124:9
Dec 19 12:22:25.533 INFO [stderr]     |
Dec 19 12:22:25.533 INFO [stderr] 124 |     let slice_two: &[i32] = &[3, 4];
Dec 19 12:22:25.533 INFO [stderr]     |         ^^^^^^^^^ help: consider using `_slice_two` instead
Dec 19 12:22:25.534 INFO [stderr] 
Dec 19 12:22:25.563 INFO [stderr] warning: function is never used: `num_combinations`
Dec 19 12:22:25.564 INFO [stderr]   --> src/main.rs:19:1
Dec 19 12:22:25.564 INFO [stderr]    |
Dec 19 12:22:25.564 INFO [stderr] 19 | fn num_combinations(num_items: u64, take: u64) -> BigUint {
Dec 19 12:22:25.565 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:22:25.565 INFO [stderr] 
Dec 19 12:22:25.565 INFO [stderr] warning: function is never used: `print`
Dec 19 12:22:25.565 INFO [stderr]   --> src/main.rs:62:1
Dec 19 12:22:25.566 INFO [stderr]    |
Dec 19 12:22:25.566 INFO [stderr] 62 | fn print<T: Iterator + std::fmt::Debug>(thing: T) -> T{
Dec 19 12:22:25.566 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:22:25.566 INFO [stderr] 
Dec 19 12:22:25.621 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.67s
Dec 19 12:22:27.318 INFO running `"docker" "inspect" "69223e9848a1bccff6f79d9d67105b8461c45657927a4b3fbdde32f1ab8c9470"`
Dec 19 12:22:27.578 INFO running `"docker" "rm" "-f" "69223e9848a1bccff6f79d9d67105b8461c45657927a4b3fbdde32f1ab8c9470"`
Dec 19 12:22:27.800 INFO [stdout] 69223e9848a1bccff6f79d9d67105b8461c45657927a4b3fbdde32f1ab8c9470