[INFO] cloning repository https://github.com/mcjohanso/Combinatorics
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mcjohanso/Combinatorics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcjohanso%2FCombinatorics", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcjohanso%2FCombinatorics'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2dad46a75ec475c3f9e331a43360a76d5505fa97
[INFO] checking mcjohanso/Combinatorics against master#8e37e151835d96d6a7415e93e6876561485a3354 for pr-134218
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcjohanso%2FCombinatorics" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mcjohanso/Combinatorics on toolchain 8e37e151835d96d6a7415e93e6876561485a3354
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e37e151835d96d6a7415e93e6876561485a3354" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mcjohanso/Combinatorics
[INFO] finished tweaking git repo https://github.com/mcjohanso/Combinatorics
[INFO] tweaked toml for git repo https://github.com/mcjohanso/Combinatorics written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mcjohanso/Combinatorics already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e37e151835d96d6a7415e93e6876561485a3354" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+8e37e151835d96d6a7415e93e6876561485a3354" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 08ec7b0460eef221ec6079a82cff9503b266bfb7b43a90f50a9f96210f624df8
[INFO] running `Command { std: "docker" "start" "-a" "08ec7b0460eef221ec6079a82cff9503b266bfb7b43a90f50a9f96210f624df8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08ec7b0460eef221ec6079a82cff9503b266bfb7b43a90f50a9f96210f624df8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08ec7b0460eef221ec6079a82cff9503b266bfb7b43a90f50a9f96210f624df8", kill_on_drop: false }`
[INFO] [stdout] 08ec7b0460eef221ec6079a82cff9503b266bfb7b43a90f50a9f96210f624df8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+8e37e151835d96d6a7415e93e6876561485a3354" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3607e7432c8a6cdabba8610c7dbf2a96ae4e8fed7cf0d464c76f939f29b5edaa
[INFO] running `Command { std: "docker" "start" "-a" "3607e7432c8a6cdabba8610c7dbf2a96ae4e8fed7cf0d464c76f939f29b5edaa", kill_on_drop: false }`
[INFO] [stderr]     Checking OCW6042 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `gcf` is never used
[INFO] [stdout]  --> src/mmath/mod.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn gcf(mut a: i32, mut b: i32) -> i32 {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pulverize` is never used
[INFO] [stdout]   --> src/mmath/mod.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn pulverize(x: i32, y: i32) -> GcfFactors {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `inverse_modn` is never used
[INFO] [stdout]   --> src/mmath/mod.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub fn inverse_modn(k: i32, n: i32) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GcfFactors` is never constructed
[INFO] [stdout]   --> src/mmath/mod.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub struct GcfFactors {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `distinct_balls_to_distict_cells` is never used
[INFO] [stdout]   --> src/counting/mod.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn distinct_balls_to_distict_cells(n_balls: u64, k_cells: u64, allow_empty: bool) -> u64{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `indistinct_balls_to_distict_cells` is never used
[INFO] [stdout]   --> src/counting/mod.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn indistinct_balls_to_distict_cells(n_balls: u64, k_cells: u64, allow_empty: bool) -> u64{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `distinct_balls_to_indistict_cells` is never used
[INFO] [stdout]   --> src/counting/mod.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn distinct_balls_to_indistict_cells(n_balls: u64, k_cells: u64, allow_empty: bool) -> u64{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sterling` is never used
[INFO] [stdout]   --> src/counting/mod.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub fn sterling(n : u64, k: u64 ) -> u64{
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `factorial` is never used
[INFO] [stdout]   --> src/counting/mod.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub fn factorial(n: u64) -> u64{
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `r_combination` is never used
[INFO] [stdout]   --> src/counting/mod.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub fn r_combination(n: u64, r: u64) -> u64{
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `r_permutation` is never used
[INFO] [stdout]   --> src/counting/mod.rs:98:8
[INFO] [stdout]    |
[INFO] [stdout] 98 | pub fn r_permutation(n: u64, r: u64) -> u64{
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `r_permutation_replacement` is never used
[INFO] [stdout]    --> src/counting/mod.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub fn r_permutation_replacement(n: u64, r: u64) -> u64{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `r_combination_replacement` is never used
[INFO] [stdout]    --> src/counting/mod.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub fn r_combination_replacement(n: u64, r: u64) -> u64{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `OCW6042` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `ocw6042`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `distinct_balls_to_distict_cells` is never used
[INFO] [stdout]   --> src/counting/mod.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn distinct_balls_to_distict_cells(n_balls: u64, k_cells: u64, allow_empty: bool) -> u64{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `indistinct_balls_to_distict_cells` is never used
[INFO] [stdout]   --> src/counting/mod.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn indistinct_balls_to_distict_cells(n_balls: u64, k_cells: u64, allow_empty: bool) -> u64{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `distinct_balls_to_indistict_cells` is never used
[INFO] [stdout]   --> src/counting/mod.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn distinct_balls_to_indistict_cells(n_balls: u64, k_cells: u64, allow_empty: bool) -> u64{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `r_combination_replacement` is never used
[INFO] [stdout]    --> src/counting/mod.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub fn r_combination_replacement(n: u64, r: u64) -> u64{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "3607e7432c8a6cdabba8610c7dbf2a96ae4e8fed7cf0d464c76f939f29b5edaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3607e7432c8a6cdabba8610c7dbf2a96ae4e8fed7cf0d464c76f939f29b5edaa", kill_on_drop: false }`
[INFO] [stdout] 3607e7432c8a6cdabba8610c7dbf2a96ae4e8fed7cf0d464c76f939f29b5edaa