[INFO] updating cached repository https://github.com/kwannoel/algorithms [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] fb2884575239529b0da700522461e460036cc012 [INFO] checking kwannoel/algorithms against master#bd0bacc694d7d8175804bb6f690cb846bfa4a9ee for pr-71665 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkwannoel%2Falgorithms" "/workspace/builds/worker-7/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kwannoel/algorithms on toolchain bd0bacc694d7d8175804bb6f690cb846bfa4a9ee [INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/kwannoel/algorithms [INFO] finished tweaking git repo https://github.com/kwannoel/algorithms [INFO] tweaked toml for git repo https://github.com/kwannoel/algorithms written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/kwannoel/algorithms already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "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] bd0ae0049b6be83f95baeb299207cb9201424342e1acec6d24bdc4f485e9b99e [INFO] running `"docker" "start" "-a" "bd0ae0049b6be83f95baeb299207cb9201424342e1acec6d24bdc4f485e9b99e"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Checking ppv-lite86 v0.2.6 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking c2-chacha v0.2.3 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking algorithms v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `mid` [INFO] [stderr] --> src/sort/merge_sort.rs:50:63 [INFO] [stderr] | [INFO] [stderr] 50 | pub fn iterative_merge_sort(mut arr: &mut Vec, l: usize, mid: usize, r: usize) { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_mid` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `bubble_sort` [INFO] [stderr] --> src/sort/bubble_sort.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | pub fn bubble_sort(arr: &mut [i32]) { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `merge_sort` [INFO] [stderr] --> src/sort/merge_sort.rs:11:8 [INFO] [stderr] | [INFO] [stderr] 11 | pub fn merge_sort(arr: Vec) -> Vec{ [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `merge` [INFO] [stderr] --> src/sort/merge_sort.rs:23:4 [INFO] [stderr] | [INFO] [stderr] 23 | fn merge(arr1: Vec, arr2: Vec) -> Vec { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `iterative_merge_sort` [INFO] [stderr] --> src/sort/merge_sort.rs:50:8 [INFO] [stderr] | [INFO] [stderr] 50 | pub fn iterative_merge_sort(mut arr: &mut Vec, l: usize, mid: usize, r: usize) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `insertion_sort` [INFO] [stderr] --> src/sort/insertion_sort.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | pub fn insertion_sort(arr: &mut [i32]) { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `selection_sort` [INFO] [stderr] --> src/sort/selection_sort.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | pub fn selection_sort(arr: &mut [i32]) { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `quick_sort` [INFO] [stderr] --> src/sort/quick_sort.rs:8:8 [INFO] [stderr] | [INFO] [stderr] 8 | pub fn quick_sort(arr: &mut [i32]) { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `knuth_shuffle` [INFO] [stderr] --> src/shuffle.rs:5:8 [INFO] [stderr] | [INFO] [stderr] 5 | pub fn knuth_shuffle(arr: &mut [i32]) { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable `newPos` should have a snake case name [INFO] [stderr] --> src/shuffle.rs:9:13 [INFO] [stderr] | [INFO] [stderr] 9 | let newPos = rng.gen_range(0, i); [INFO] [stderr] | ^^^^^^ help: convert the identifier to snake case: `new_pos` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `mid` [INFO] [stderr] --> src/sort/merge_sort.rs:50:63 [INFO] [stderr] | [INFO] [stderr] 50 | pub fn iterative_merge_sort(mut arr: &mut Vec, l: usize, mid: usize, r: usize) { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_mid` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 10 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: function is never used: `iterative_merge_sort_wrap` [INFO] [stderr] --> src/sort/merge_sort.rs:100:8 [INFO] [stderr] | [INFO] [stderr] 100 | fn iterative_merge_sort_wrap(arr: &mut [i32]) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `newPos` should have a snake case name [INFO] [stderr] --> src/shuffle.rs:9:13 [INFO] [stderr] | [INFO] [stderr] 9 | let newPos = rng.gen_range(0, i); [INFO] [stderr] | ^^^^^^ help: convert the identifier to snake case: `new_pos` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.67s [INFO] running `"docker" "inspect" "bd0ae0049b6be83f95baeb299207cb9201424342e1acec6d24bdc4f485e9b99e"` [INFO] running `"docker" "rm" "-f" "bd0ae0049b6be83f95baeb299207cb9201424342e1acec6d24bdc4f485e9b99e"` [INFO] [stdout] bd0ae0049b6be83f95baeb299207cb9201424342e1acec6d24bdc4f485e9b99e