[INFO] updating cached repository https://github.com/Hypnoes/algor
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e825f52c5ae77e316b9b70ad75a824b4fa227120
[INFO] checking Hypnoes/algor against try#13f916f63bc6575d5ff1f989237dfabe88981368 for pr-69880
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHypnoes%2Falgor" "/workspace/builds/worker-10/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Hypnoes/algor on toolchain 13f916f63bc6575d5ff1f989237dfabe88981368
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Hypnoes/algor
[INFO] finished tweaking git repo https://github.com/Hypnoes/algor
[INFO] tweaked toml for git repo https://github.com/Hypnoes/algor written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/Hypnoes/algor already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a7994a5f404ea8b1e254397d83bb7ce49bcfcce63e6deb5aeee8834258252724
[INFO] running `"docker" "start" "-a" "a7994a5f404ea8b1e254397d83bb7ce49bcfcce63e6deb5aeee8834258252724"`
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking algor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Add`, `Index`, `Mul`, `Sub`
[INFO] [stderr]  --> src/lib/matrix.rs:1:16
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ops::{Add, Index, Mul, Sub};
[INFO] [stderr]   |                ^^^  ^^^^^  ^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Add`, `Index`, `Mul`, `Sub`
[INFO] [stderr]  --> src/lib/matrix.rs:1:16
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ops::{Add, Index, Mul, Sub};
[INFO] [stderr]   |                ^^^  ^^^^^  ^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `binary_search`
[INFO] [stderr]  --> src/lib/binary_search.rs:3:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn binary_search(key: usize, a: &[usize]) -> Result<usize, &'static str> {
[INFO] [stderr]   |    ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `binary_search_r`
[INFO] [stderr]   --> src/lib/binary_search.rs:20:4
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn binary_search_r(key: usize, a: &[usize]) -> Result<usize, &'static str> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `binomial`
[INFO] [stderr]  --> src/lib/binomail.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn binomial(n: i32, k: i32, p: f64) -> f64 {
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `binomial_unrecursive`
[INFO] [stderr]   --> src/lib/binomail.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn binomial_unrecursive(n: i32, k: i32, p: f64) -> f64 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `arrangement`
[INFO] [stderr]   --> src/lib/binomail.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn arrangement(m: i32, n: i32) -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `combination`
[INFO] [stderr]   --> src/lib/binomail.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn combination(m: i32, n: i32) -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `factorial`
[INFO] [stderr]   --> src/lib/binomail.rs:43:8
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub fn factorial(n: i32) -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `containner`
[INFO] [stderr]  --> src/lib/matrix.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     containner: Box<Vec<Vec<T>>>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `size`
[INFO] [stderr]  --> src/lib/matrix.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     size: (usize, usize),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `binary_search`
[INFO] [stderr]  --> src/lib/binary_search.rs:3:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn binary_search(key: usize, a: &[usize]) -> Result<usize, &'static str> {
[INFO] [stderr]   |    ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `binary_search_r`
[INFO] [stderr]   --> src/lib/binary_search.rs:20:4
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn binary_search_r(key: usize, a: &[usize]) -> Result<usize, &'static str> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `binomial`
[INFO] [stderr]  --> src/lib/binomail.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn binomial(n: i32, k: i32, p: f64) -> f64 {
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `binomial_unrecursive`
[INFO] [stderr]   --> src/lib/binomail.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn binomial_unrecursive(n: i32, k: i32, p: f64) -> f64 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `arrangement`
[INFO] [stderr]   --> src/lib/binomail.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn arrangement(m: i32, n: i32) -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `combination`
[INFO] [stderr]   --> src/lib/binomail.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn combination(m: i32, n: i32) -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `factorial`
[INFO] [stderr]   --> src/lib/binomail.rs:43:8
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub fn factorial(n: i32) -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `containner`
[INFO] [stderr]  --> src/lib/matrix.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     containner: Box<Vec<Vec<T>>>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `size`
[INFO] [stderr]  --> src/lib/matrix.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     size: (usize, usize),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.97s
[INFO] running `"docker" "inspect" "a7994a5f404ea8b1e254397d83bb7ce49bcfcce63e6deb5aeee8834258252724"`
[INFO] running `"docker" "rm" "-f" "a7994a5f404ea8b1e254397d83bb7ce49bcfcce63e6deb5aeee8834258252724"`
[INFO] [stdout] a7994a5f404ea8b1e254397d83bb7ce49bcfcce63e6deb5aeee8834258252724