[INFO] cloning repository https://github.com/martian0x80/cses
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/martian0x80/cses" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartian0x80%2Fcses", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartian0x80%2Fcses'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3e0c1de8da4962f090e86f752ae206241e985124
[INFO] testing martian0x80/cses against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartian0x80%2Fcses" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/martian0x80/cses
[INFO] finished tweaking git repo https://github.com/martian0x80/cses
[INFO] tweaked toml for git repo https://github.com/martian0x80/cses written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/martian0x80/cses on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/martian0x80/cses 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7dd491195e02d6c0a827e21a675b69d9db385125f34f753443e7a96f92d6752
[INFO] running `Command { std: "docker" "start" "-a" "a7dd491195e02d6c0a827e21a675b69d9db385125f34f753443e7a96f92d6752", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7dd491195e02d6c0a827e21a675b69d9db385125f34f753443e7a96f92d6752", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7dd491195e02d6c0a827e21a675b69d9db385125f34f753443e7a96f92d6752", kill_on_drop: false }`
[INFO] [stdout] a7dd491195e02d6c0a827e21a675b69d9db385125f34f753443e7a96f92d6752
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b81e98483cd544874b270e5c9235da5a2fa177096b29cc85b839bc9152a2b79
[INFO] running `Command { std: "docker" "start" "-a" "6b81e98483cd544874b270e5c9235da5a2fa177096b29cc85b839bc9152a2b79", kill_on_drop: false }`
[INFO] [stderr]    Compiling cses-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `offset` is never read
[INFO] [stdout]   --> src/cses/number_spiral.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut offset = 0;
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/cses/palindrome_reorder.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut odd_count = freq.iter().filter(|&x| x % 2 == 1).count();
[INFO] [stdout]   |         ----^^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_count` is never used
[INFO] [stdout]  --> src/cses/bit_strings.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn get_count(n: i64) -> i64 {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_possible` is never used
[INFO] [stdout]  --> src/cses/coin_piles.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn is_possible(a: i64, b: i64) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gray_code` is never used
[INFO] [stdout]  --> src/cses/gray_code.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn gray_code(i: u32, width: usize) -> String {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_codes_list` is never used
[INFO] [stdout]  --> src/cses/gray_code.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn get_codes_list(bit_len: u32) -> Vec<String> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_min_moves` is never used
[INFO] [stdout]  --> src/cses/increasing_array.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn count_min_moves(nums: &mut [i64]) -> i64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_missing` is never used
[INFO] [stdout]  --> src/cses/missing_number.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn find_missing(seq: &[i64], n: i64) -> i64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_spiral` is never used
[INFO] [stdout]  --> src/cses/number_spiral.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn generate_spiral(input: i64) -> Vec<Vec<i64>> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_value` is never used
[INFO] [stdout]   --> src/cses/number_spiral.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn get_value(x: i64, y: i64) -> i64 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> src/cses/number_spiral.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub struct Point<T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reorder` is never used
[INFO] [stdout]  --> src/cses/palindrome_reorder.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn reorder(s: &str) -> Option<String> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_beautiful_sequence` is never used
[INFO] [stdout]  --> src/cses/permutations.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn find_beautiful_sequence(n: i64) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_longest_repetition` is never used
[INFO] [stdout]  --> src/cses/repetitions.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn find_longest_repetition(dna: &str) -> i64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_trailing_zeroes` is never used
[INFO] [stdout]  --> src/cses/trailing_zeroes.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn find_trailing_zeroes(n: i64) -> i64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_possible_moves` is never used
[INFO] [stdout]  --> src/cses/two_knights.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn find_possible_moves(n: i64) -> Vec<i64> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_sets` is never used
[INFO] [stdout]  --> src/cses/two_sets.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn find_sets(n: i64) -> Option<Vec<Vec<i64>>> {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greedy_find_sets` is never used
[INFO] [stdout]   --> src/cses/two_sets.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn greedy_find_sets(n: i64) -> Option<Vec<Vec<i64>>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_matrix` is never used
[INFO] [stdout]  --> src/utils.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn print_matrix(mat: &Vec<Vec<i64>>) {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "6b81e98483cd544874b270e5c9235da5a2fa177096b29cc85b839bc9152a2b79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b81e98483cd544874b270e5c9235da5a2fa177096b29cc85b839bc9152a2b79", kill_on_drop: false }`
[INFO] [stdout] 6b81e98483cd544874b270e5c9235da5a2fa177096b29cc85b839bc9152a2b79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f22a3167920275bc7b1d5636a849dbfbb57b20babc579d01111f7a9d166f68d
[INFO] running `Command { std: "docker" "start" "-a" "0f22a3167920275bc7b1d5636a849dbfbb57b20babc579d01111f7a9d166f68d", kill_on_drop: false }`
[INFO] [stderr]    Compiling cses-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `offset` is never read
[INFO] [stdout]   --> src/cses/number_spiral.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut offset = 0;
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/cses/palindrome_reorder.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut odd_count = freq.iter().filter(|&x| x % 2 == 1).count();
[INFO] [stdout]   |         ----^^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_count` is never used
[INFO] [stdout]  --> src/cses/bit_strings.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn get_count(n: i64) -> i64 {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_possible` is never used
[INFO] [stdout]  --> src/cses/coin_piles.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn is_possible(a: i64, b: i64) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gray_code` is never used
[INFO] [stdout]  --> src/cses/gray_code.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn gray_code(i: u32, width: usize) -> String {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_codes_list` is never used
[INFO] [stdout]  --> src/cses/gray_code.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn get_codes_list(bit_len: u32) -> Vec<String> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_min_moves` is never used
[INFO] [stdout]  --> src/cses/increasing_array.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn count_min_moves(nums: &mut [i64]) -> i64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_missing` is never used
[INFO] [stdout]  --> src/cses/missing_number.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn find_missing(seq: &[i64], n: i64) -> i64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_spiral` is never used
[INFO] [stdout]  --> src/cses/number_spiral.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn generate_spiral(input: i64) -> Vec<Vec<i64>> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_value` is never used
[INFO] [stdout]   --> src/cses/number_spiral.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn get_value(x: i64, y: i64) -> i64 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> src/cses/number_spiral.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub struct Point<T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reorder` is never used
[INFO] [stdout]  --> src/cses/palindrome_reorder.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn reorder(s: &str) -> Option<String> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_beautiful_sequence` is never used
[INFO] [stdout]  --> src/cses/permutations.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn find_beautiful_sequence(n: i64) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_longest_repetition` is never used
[INFO] [stdout]  --> src/cses/repetitions.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn find_longest_repetition(dna: &str) -> i64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_trailing_zeroes` is never used
[INFO] [stdout]  --> src/cses/trailing_zeroes.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn find_trailing_zeroes(n: i64) -> i64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_possible_moves` is never used
[INFO] [stdout]  --> src/cses/two_knights.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn find_possible_moves(n: i64) -> Vec<i64> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_sets` is never used
[INFO] [stdout]  --> src/cses/two_sets.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn find_sets(n: i64) -> Option<Vec<Vec<i64>>> {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greedy_find_sets` is never used
[INFO] [stdout]   --> src/cses/two_sets.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn greedy_find_sets(n: i64) -> Option<Vec<Vec<i64>>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_matrix` is never used
[INFO] [stdout]  --> src/utils.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn print_matrix(mat: &Vec<Vec<i64>>) {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "0f22a3167920275bc7b1d5636a849dbfbb57b20babc579d01111f7a9d166f68d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f22a3167920275bc7b1d5636a849dbfbb57b20babc579d01111f7a9d166f68d", kill_on_drop: false }`
[INFO] [stdout] 0f22a3167920275bc7b1d5636a849dbfbb57b20babc579d01111f7a9d166f68d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e0ae9ff0898e526f61baddfe56cffceba7c57638585c354ad5b05be809e21879
[INFO] running `Command { std: "docker" "start" "-a" "e0ae9ff0898e526f61baddfe56cffceba7c57638585c354ad5b05be809e21879", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `offset` is never read
[INFO] [stderr]   --> src/cses/number_spiral.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let mut offset = 0;
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/cses/palindrome_reorder.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut odd_count = freq.iter().filter(|&x| x % 2 == 1).count();
[INFO] [stderr]   |         ----^^^^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `get_count` is never used
[INFO] [stderr]  --> src/cses/bit_strings.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn get_count(n: i64) -> i64 {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `is_possible` is never used
[INFO] [stderr]  --> src/cses/coin_piles.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn is_possible(a: i64, b: i64) -> bool {
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `gray_code` is never used
[INFO] [stderr]  --> src/cses/gray_code.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn gray_code(i: u32, width: usize) -> String {
[INFO] [stderr]   |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `get_codes_list` is never used
[INFO] [stderr]  --> src/cses/gray_code.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn get_codes_list(bit_len: u32) -> Vec<String> {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `count_min_moves` is never used
[INFO] [stderr]  --> src/cses/increasing_array.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn count_min_moves(nums: &mut [i64]) -> i64 {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_missing` is never used
[INFO] [stderr]  --> src/cses/missing_number.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn find_missing(seq: &[i64], n: i64) -> i64 {
[INFO] [stderr]   |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `generate_spiral` is never used
[INFO] [stderr]  --> src/cses/number_spiral.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn generate_spiral(input: i64) -> Vec<Vec<i64>> {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `get_value` is never used
[INFO] [stderr]   --> src/cses/number_spiral.rs:40:8
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub fn get_value(x: i64, y: i64) -> i64 {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Point` is never constructed
[INFO] [stderr]   --> src/cses/number_spiral.rs:73:12
[INFO] [stderr]    |
[INFO] [stderr] 73 | pub struct Point<T> {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `reorder` is never used
[INFO] [stderr]  --> src/cses/palindrome_reorder.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn reorder(s: &str) -> Option<String> {
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_beautiful_sequence` is never used
[INFO] [stderr]  --> src/cses/permutations.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn find_beautiful_sequence(n: i64) -> String {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_longest_repetition` is never used
[INFO] [stderr]  --> src/cses/repetitions.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn find_longest_repetition(dna: &str) -> i64 {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_trailing_zeroes` is never used
[INFO] [stderr]  --> src/cses/trailing_zeroes.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn find_trailing_zeroes(n: i64) -> i64 {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_possible_moves` is never used
[INFO] [stderr]  --> src/cses/two_knights.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn find_possible_moves(n: i64) -> Vec<i64> {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_sets` is never used
[INFO] [stderr]  --> src/cses/two_sets.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn find_sets(n: i64) -> Option<Vec<Vec<i64>>> {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `greedy_find_sets` is never used
[INFO] [stderr]   --> src/cses/two_sets.rs:41:8
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub fn greedy_find_sets(n: i64) -> Option<Vec<Vec<i64>>> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_matrix` is never used
[INFO] [stderr]  --> src/utils.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn print_matrix(mat: &Vec<Vec<i64>>) {
[INFO] [stderr]   |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `cses-rust` (bin "cses-rust" test) generated 19 warnings (run `cargo fix --bin "cses-rust" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cses_rust-12ddfc889b4af1b2)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e0ae9ff0898e526f61baddfe56cffceba7c57638585c354ad5b05be809e21879", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0ae9ff0898e526f61baddfe56cffceba7c57638585c354ad5b05be809e21879", kill_on_drop: false }`
[INFO] [stdout] e0ae9ff0898e526f61baddfe56cffceba7c57638585c354ad5b05be809e21879