[INFO] updating cached repository https://github.com/cshaffer/advent_2017
[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] 96ccf7be81dc5a12d7600d765701091585a7f090
[INFO] testing cshaffer/advent_2017 against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcshaffer%2Fadvent_2017" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cshaffer/advent_2017 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/cshaffer/advent_2017
[INFO] finished tweaking git repo https://github.com/cshaffer/advent_2017
[INFO] tweaked toml for git repo https://github.com/cshaffer/advent_2017 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/cshaffer/advent_2017 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 063af4943c36b180f061c3236e9e115dea684c46918f83da99eac2e95605c6e0
[INFO] running `"docker" "start" "-a" "063af4943c36b180f061c3236e9e115dea684c46918f83da99eac2e95605c6e0"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.34
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling regex v0.2.3
[INFO] [stderr]    Compiling advent_2017 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> src/registers.rs:3:42
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn parse_comparison(operator: String) -> (fn(&i32, &i32) -> bool) {
[INFO] [stderr]   |                                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/registers.rs:19:40
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn parse_operator(operator: String) -> (fn(i32, i32) -> i32) {
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `checksum`
[INFO] [stderr]  --> src/checksum.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn checksum(numbers: Vec<Vec<u32>>, pair_finder: fn(Vec<u32>) -> (u32, u32), pair_transformation: fn(u32, u32) -> u32) -> u32 {
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `divisible`
[INFO] [stderr]   --> src/checksum.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn divisible(first: u32, second: u32) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `divisible_values`
[INFO] [stderr]   --> src/checksum.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn divisible_values(row: Vec<u32>) -> (u32, u32) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `extreme_values`
[INFO] [stderr]   --> src/checksum.rs:37:8
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn extreme_values(row: Vec<u32>) -> (u32, u32) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `quotient`
[INFO] [stderr]   --> src/checksum.rs:51:8
[INFO] [stderr]    |
[INFO] [stderr] 51 | pub fn quotient(first: u32, second: u32) -> u32 {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `difference`
[INFO] [stderr]   --> src/checksum.rs:63:8
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub fn difference(first: u32, second: u32) -> u32 {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_one_line`
[INFO] [stderr]  --> src/io.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn read_one_line() -> String {
[INFO] [stderr]   |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_int_arrays_from_file`
[INFO] [stderr]   --> src/io.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn read_int_arrays_from_file(path: String) -> Vec<Vec<u32>> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_string_arrays_from_file`
[INFO] [stderr]   --> src/io.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn read_string_arrays_from_file(path: String) -> Vec<Vec<String>> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_string_lines_from_file`
[INFO] [stderr]   --> src/io.rs:39:8
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn read_string_lines_from_file(path: String) -> Vec<String> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_int_array_from_file`
[INFO] [stderr]   --> src/io.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn read_int_array_from_file(path: String) -> Vec<u32> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `inverse_captcha`
[INFO] [stderr]  --> src/inverse_captcha.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn inverse_captcha(digits: String) -> u32 {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum_of_matching_offset_digits`
[INFO] [stderr]  --> src/inverse_captcha.rs:5:4
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn sum_of_matching_offset_digits(v: &Vec<u32>, offset_function: fn(&Vec<u32>) -> usize) -> u32 {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_string_of_digits`
[INFO] [stderr]   --> src/inverse_captcha.rs:22:4
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn parse_string_of_digits(input: String) -> Vec<u32> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `just_one`
[INFO] [stderr]   --> src/inverse_captcha.rs:26:4
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn just_one<A>(_: &Vec<A>) -> usize {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `length_over_two`
[INFO] [stderr]   --> src/inverse_captcha.rs:30:4
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn length_over_two<A>(vector: &Vec<A>) -> usize {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `valid_count`
[INFO] [stderr]  --> src/passphrase.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn valid_count(phrases: Vec<Vec<String>>) -> usize {
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sort_word`
[INFO] [stderr]   --> src/passphrase.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn sort_word(word: &String) -> String {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `valid_passphrase`
[INFO] [stderr]   --> src/passphrase.rs:17:4
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn valid_passphrase(phrase: &Vec<String>) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `construct_tower`
[INFO] [stderr]  --> src/tower.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn construct_tower(input: Vec<String>) -> (HashMap<String, String>, HashMap<String, u32>, HashMap<String, Vec<String>>) {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_weight`
[INFO] [stderr]   --> src/tower.rs:29:4
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn parse_weight(text: String) -> u32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_weight_at_node`
[INFO] [stderr]   --> src/tower.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn find_weight_at_node(tower: HashMap<String, Vec<String>>, weights: HashMap<String, u32>, node: String) -> u32 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_node_weights`
[INFO] [stderr]   --> src/tower.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub fn print_node_weights(tower: HashMap<String, Vec<String>>, weights: HashMap<String, u32>, root: String) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_root_of_tower`
[INFO] [stderr]   --> src/tower.rs:63:8
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub fn find_root_of_tower(tower: HashMap<String, String>) -> String {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `realloc`
[INFO] [stderr]  --> src/realloc.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn realloc(memory: Vec<u32>) -> u32 {
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `redistribute`
[INFO] [stderr]   --> src/realloc.rs:29:4
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn redistribute(memory: Vec<u32>, blocks: u32, next_index: usize) -> Vec<u32> {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_index_of_max_value`
[INFO] [stderr]   --> src/realloc.rs:44:4
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn find_index_of_max_value(memory: Vec<u32>) -> usize {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `manhattan_distance`
[INFO] [stderr]  --> src/spiral_memory.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn manhattan_distance(destination: u32) -> u32 {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `travel_spiral`
[INFO] [stderr]  --> src/spiral_memory.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn travel_spiral(destination: u32) -> (i32, i32) {
[INFO] [stderr]   |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `spiral_sum`
[INFO] [stderr]   --> src/spiral_memory.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub fn spiral_sum(input: u32) -> u32 {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_comparison`
[INFO] [stderr]  --> src/registers.rs:3:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn parse_comparison(operator: String) -> (fn(&i32, &i32) -> bool) {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_operator`
[INFO] [stderr]   --> src/registers.rs:19:4
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn parse_operator(operator: String) -> (fn(i32, i32) -> i32) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run_instructions`
[INFO] [stderr]   --> src/registers.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn run_instructions(input: Vec<String>) -> HashMap<String, i32> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_largest_value`
[INFO] [stderr]   --> src/registers.rs:59:8
[INFO] [stderr]    |
[INFO] [stderr] 59 | pub fn find_largest_value(registers: HashMap<String, i32>) -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_garbage`
[INFO] [stderr]  --> src/stream.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn count_garbage(stream: String) -> u32 {
[INFO] [stderr]   |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hash`
[INFO] [stderr]  --> src/knot.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn hash(lengths_string: String) -> String {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `reverse_sublist`
[INFO] [stderr]   --> src/knot.rs:23:4
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn reverse_sublist(list: Vec<u32>, index: usize, size: usize) -> Vec<u32> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `inverse_captcha_main`
[INFO] [stderr]   --> src/main.rs:13:4
[INFO] [stderr]    |
[INFO] [stderr] 13 | fn inverse_captcha_main() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `checksum_main`
[INFO] [stderr]   --> src/main.rs:18:4
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn checksum_main() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `spiral_memory_main`
[INFO] [stderr]   --> src/main.rs:24:4
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn spiral_memory_main(input: u32) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `passphrase_main`
[INFO] [stderr]   --> src/main.rs:29:4
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn passphrase_main() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `realloc_main`
[INFO] [stderr]   --> src/main.rs:41:4
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn realloc_main() {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tower_main`
[INFO] [stderr]   --> src/main.rs:47:4
[INFO] [stderr]    |
[INFO] [stderr] 47 | fn tower_main() {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `registers_main`
[INFO] [stderr]   --> src/main.rs:54:4
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn registers_main() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `stream_main`
[INFO] [stderr]   --> src/main.rs:61:4
[INFO] [stderr]    |
[INFO] [stderr] 61 | fn stream_main() {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `knot_main`
[INFO] [stderr]   --> src/main.rs:66:4
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn knot_main() {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 48 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.63s
[INFO] running `"docker" "inspect" "063af4943c36b180f061c3236e9e115dea684c46918f83da99eac2e95605c6e0"`
[INFO] running `"docker" "rm" "-f" "063af4943c36b180f061c3236e9e115dea684c46918f83da99eac2e95605c6e0"`
[INFO] [stdout] 063af4943c36b180f061c3236e9e115dea684c46918f83da99eac2e95605c6e0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5b45f47e0a3e913ff56ea7b0399a58172db7948e125a095bd6d46e6805ca3da0
[INFO] running `"docker" "start" "-a" "5b45f47e0a3e913ff56ea7b0399a58172db7948e125a095bd6d46e6805ca3da0"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling advent_2017 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> src/registers.rs:3:42
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn parse_comparison(operator: String) -> (fn(&i32, &i32) -> bool) {
[INFO] [stderr]   |                                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/registers.rs:19:40
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn parse_operator(operator: String) -> (fn(i32, i32) -> i32) {
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `checksum`
[INFO] [stderr]  --> src/checksum.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn checksum(numbers: Vec<Vec<u32>>, pair_finder: fn(Vec<u32>) -> (u32, u32), pair_transformation: fn(u32, u32) -> u32) -> u32 {
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `divisible`
[INFO] [stderr]   --> src/checksum.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn divisible(first: u32, second: u32) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `divisible_values`
[INFO] [stderr]   --> src/checksum.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn divisible_values(row: Vec<u32>) -> (u32, u32) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `extreme_values`
[INFO] [stderr]   --> src/checksum.rs:37:8
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn extreme_values(row: Vec<u32>) -> (u32, u32) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `quotient`
[INFO] [stderr]   --> src/checksum.rs:51:8
[INFO] [stderr]    |
[INFO] [stderr] 51 | pub fn quotient(first: u32, second: u32) -> u32 {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `difference`
[INFO] [stderr]   --> src/checksum.rs:63:8
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub fn difference(first: u32, second: u32) -> u32 {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_one_line`
[INFO] [stderr]  --> src/io.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn read_one_line() -> String {
[INFO] [stderr]   |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_int_arrays_from_file`
[INFO] [stderr]   --> src/io.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn read_int_arrays_from_file(path: String) -> Vec<Vec<u32>> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_string_arrays_from_file`
[INFO] [stderr]   --> src/io.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn read_string_arrays_from_file(path: String) -> Vec<Vec<String>> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_string_lines_from_file`
[INFO] [stderr]   --> src/io.rs:39:8
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn read_string_lines_from_file(path: String) -> Vec<String> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_int_array_from_file`
[INFO] [stderr]   --> src/io.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn read_int_array_from_file(path: String) -> Vec<u32> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `inverse_captcha`
[INFO] [stderr]  --> src/inverse_captcha.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn inverse_captcha(digits: String) -> u32 {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum_of_matching_offset_digits`
[INFO] [stderr]  --> src/inverse_captcha.rs:5:4
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn sum_of_matching_offset_digits(v: &Vec<u32>, offset_function: fn(&Vec<u32>) -> usize) -> u32 {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_string_of_digits`
[INFO] [stderr]   --> src/inverse_captcha.rs:22:4
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn parse_string_of_digits(input: String) -> Vec<u32> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `just_one`
[INFO] [stderr]   --> src/inverse_captcha.rs:26:4
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn just_one<A>(_: &Vec<A>) -> usize {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `length_over_two`
[INFO] [stderr]   --> src/inverse_captcha.rs:30:4
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn length_over_two<A>(vector: &Vec<A>) -> usize {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `valid_count`
[INFO] [stderr]  --> src/passphrase.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn valid_count(phrases: Vec<Vec<String>>) -> usize {
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sort_word`
[INFO] [stderr]   --> src/passphrase.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn sort_word(word: &String) -> String {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `valid_passphrase`
[INFO] [stderr]   --> src/passphrase.rs:17:4
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn valid_passphrase(phrase: &Vec<String>) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `construct_tower`
[INFO] [stderr]  --> src/tower.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn construct_tower(input: Vec<String>) -> (HashMap<String, String>, HashMap<String, u32>, HashMap<String, Vec<String>>) {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_weight`
[INFO] [stderr]   --> src/tower.rs:29:4
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn parse_weight(text: String) -> u32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_weight_at_node`
[INFO] [stderr]   --> src/tower.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn find_weight_at_node(tower: HashMap<String, Vec<String>>, weights: HashMap<String, u32>, node: String) -> u32 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_node_weights`
[INFO] [stderr]   --> src/tower.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub fn print_node_weights(tower: HashMap<String, Vec<String>>, weights: HashMap<String, u32>, root: String) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_root_of_tower`
[INFO] [stderr]   --> src/tower.rs:63:8
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub fn find_root_of_tower(tower: HashMap<String, String>) -> String {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `realloc`
[INFO] [stderr]  --> src/realloc.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn realloc(memory: Vec<u32>) -> u32 {
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `redistribute`
[INFO] [stderr]   --> src/realloc.rs:29:4
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn redistribute(memory: Vec<u32>, blocks: u32, next_index: usize) -> Vec<u32> {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_index_of_max_value`
[INFO] [stderr]   --> src/realloc.rs:44:4
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn find_index_of_max_value(memory: Vec<u32>) -> usize {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `manhattan_distance`
[INFO] [stderr]  --> src/spiral_memory.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn manhattan_distance(destination: u32) -> u32 {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `travel_spiral`
[INFO] [stderr]  --> src/spiral_memory.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn travel_spiral(destination: u32) -> (i32, i32) {
[INFO] [stderr]   |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `spiral_sum`
[INFO] [stderr]   --> src/spiral_memory.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub fn spiral_sum(input: u32) -> u32 {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_comparison`
[INFO] [stderr]  --> src/registers.rs:3:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn parse_comparison(operator: String) -> (fn(&i32, &i32) -> bool) {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_operator`
[INFO] [stderr]   --> src/registers.rs:19:4
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn parse_operator(operator: String) -> (fn(i32, i32) -> i32) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run_instructions`
[INFO] [stderr]   --> src/registers.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn run_instructions(input: Vec<String>) -> HashMap<String, i32> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_largest_value`
[INFO] [stderr]   --> src/registers.rs:59:8
[INFO] [stderr]    |
[INFO] [stderr] 59 | pub fn find_largest_value(registers: HashMap<String, i32>) -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_garbage`
[INFO] [stderr]  --> src/stream.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn count_garbage(stream: String) -> u32 {
[INFO] [stderr]   |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hash`
[INFO] [stderr]  --> src/knot.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn hash(lengths_string: String) -> String {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `reverse_sublist`
[INFO] [stderr]   --> src/knot.rs:23:4
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn reverse_sublist(list: Vec<u32>, index: usize, size: usize) -> Vec<u32> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `inverse_captcha_main`
[INFO] [stderr]   --> src/main.rs:13:4
[INFO] [stderr]    |
[INFO] [stderr] 13 | fn inverse_captcha_main() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `checksum_main`
[INFO] [stderr]   --> src/main.rs:18:4
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn checksum_main() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `spiral_memory_main`
[INFO] [stderr]   --> src/main.rs:24:4
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn spiral_memory_main(input: u32) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `passphrase_main`
[INFO] [stderr]   --> src/main.rs:29:4
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn passphrase_main() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `realloc_main`
[INFO] [stderr]   --> src/main.rs:41:4
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn realloc_main() {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tower_main`
[INFO] [stderr]   --> src/main.rs:47:4
[INFO] [stderr]    |
[INFO] [stderr] 47 | fn tower_main() {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `registers_main`
[INFO] [stderr]   --> src/main.rs:54:4
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn registers_main() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `stream_main`
[INFO] [stderr]   --> src/main.rs:61:4
[INFO] [stderr]    |
[INFO] [stderr] 61 | fn stream_main() {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `knot_main`
[INFO] [stderr]   --> src/main.rs:66:4
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn knot_main() {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 48 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `"docker" "inspect" "5b45f47e0a3e913ff56ea7b0399a58172db7948e125a095bd6d46e6805ca3da0"`
[INFO] running `"docker" "rm" "-f" "5b45f47e0a3e913ff56ea7b0399a58172db7948e125a095bd6d46e6805ca3da0"`
[INFO] [stdout] 5b45f47e0a3e913ff56ea7b0399a58172db7948e125a095bd6d46e6805ca3da0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1ec4a2e0066f8bb7d0ae6d129fa40f0168e515beeca18c5998e328065e132d09
[INFO] running `"docker" "start" "-a" "1ec4a2e0066f8bb7d0ae6d129fa40f0168e515beeca18c5998e328065e132d09"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stdout] 
[INFO] [stderr]  --> src/registers.rs:3:42
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 3 | fn parse_comparison(operator: String) -> (fn(&i32, &i32) -> bool) {
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr]   |                                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/registers.rs:19:40
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn parse_operator(operator: String) -> (fn(i32, i32) -> i32) {
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `checksum`
[INFO] [stderr]  --> src/checksum.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn checksum(numbers: Vec<Vec<u32>>, pair_finder: fn(Vec<u32>) -> (u32, u32), pair_transformation: fn(u32, u32) -> u32) -> u32 {
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `divisible`
[INFO] [stderr]   --> src/checksum.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn divisible(first: u32, second: u32) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `divisible_values`
[INFO] [stderr]   --> src/checksum.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn divisible_values(row: Vec<u32>) -> (u32, u32) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `extreme_values`
[INFO] [stderr]   --> src/checksum.rs:37:8
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn extreme_values(row: Vec<u32>) -> (u32, u32) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `quotient`
[INFO] [stderr]   --> src/checksum.rs:51:8
[INFO] [stderr]    |
[INFO] [stderr] 51 | pub fn quotient(first: u32, second: u32) -> u32 {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `difference`
[INFO] [stderr]   --> src/checksum.rs:63:8
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub fn difference(first: u32, second: u32) -> u32 {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_one_line`
[INFO] [stderr]  --> src/io.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn read_one_line() -> String {
[INFO] [stderr]   |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_int_arrays_from_file`
[INFO] [stderr]   --> src/io.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn read_int_arrays_from_file(path: String) -> Vec<Vec<u32>> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_string_arrays_from_file`
[INFO] [stderr]   --> src/io.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn read_string_arrays_from_file(path: String) -> Vec<Vec<String>> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_string_lines_from_file`
[INFO] [stderr]   --> src/io.rs:39:8
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn read_string_lines_from_file(path: String) -> Vec<String> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_int_array_from_file`
[INFO] [stderr]   --> src/io.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn read_int_array_from_file(path: String) -> Vec<u32> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `inverse_captcha`
[INFO] [stderr]  --> src/inverse_captcha.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn inverse_captcha(digits: String) -> u32 {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum_of_matching_offset_digits`
[INFO] [stderr]  --> src/inverse_captcha.rs:5:4
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn sum_of_matching_offset_digits(v: &Vec<u32>, offset_function: fn(&Vec<u32>) -> usize) -> u32 {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_string_of_digits`
[INFO] [stderr]   --> src/inverse_captcha.rs:22:4
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn parse_string_of_digits(input: String) -> Vec<u32> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `just_one`
[INFO] [stderr]   --> src/inverse_captcha.rs:26:4
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn just_one<A>(_: &Vec<A>) -> usize {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `length_over_two`
[INFO] [stderr]   --> src/inverse_captcha.rs:30:4
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn length_over_two<A>(vector: &Vec<A>) -> usize {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `valid_count`
[INFO] [stderr]  --> src/passphrase.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn valid_count(phrases: Vec<Vec<String>>) -> usize {
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sort_word`
[INFO] [stderr]   --> src/passphrase.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn sort_word(word: &String) -> String {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `valid_passphrase`
[INFO] [stderr]   --> src/passphrase.rs:17:4
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn valid_passphrase(phrase: &Vec<String>) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `construct_tower`
[INFO] [stderr]  --> src/tower.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn construct_tower(input: Vec<String>) -> (HashMap<String, String>, HashMap<String, u32>, HashMap<String, Vec<String>>) {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_weight`
[INFO] [stderr]   --> src/tower.rs:29:4
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn parse_weight(text: String) -> u32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_weight_at_node`
[INFO] [stderr]   --> src/tower.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn find_weight_at_node(tower: HashMap<String, Vec<String>>, weights: HashMap<String, u32>, node: String) -> u32 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_node_weights`
[INFO] [stderr]   --> src/tower.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub fn print_node_weights(tower: HashMap<String, Vec<String>>, weights: HashMap<String, u32>, root: String) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_root_of_tower`
[INFO] [stderr]   --> src/tower.rs:63:8
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub fn find_root_of_tower(tower: HashMap<String, String>) -> String {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `realloc`
[INFO] [stderr]  --> src/realloc.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn realloc(memory: Vec<u32>) -> u32 {
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `redistribute`
[INFO] [stderr]   --> src/realloc.rs:29:4
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn redistribute(memory: Vec<u32>, blocks: u32, next_index: usize) -> Vec<u32> {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_index_of_max_value`
[INFO] [stderr]   --> src/realloc.rs:44:4
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn find_index_of_max_value(memory: Vec<u32>) -> usize {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `manhattan_distance`
[INFO] [stderr]  --> src/spiral_memory.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn manhattan_distance(destination: u32) -> u32 {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `travel_spiral`
[INFO] [stderr]  --> src/spiral_memory.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn travel_spiral(destination: u32) -> (i32, i32) {
[INFO] [stderr]   |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `spiral_sum`
[INFO] [stderr]   --> src/spiral_memory.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub fn spiral_sum(input: u32) -> u32 {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_comparison`
[INFO] [stderr]  --> src/registers.rs:3:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn parse_comparison(operator: String) -> (fn(&i32, &i32) -> bool) {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_operator`
[INFO] [stderr]   --> src/registers.rs:19:4
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn parse_operator(operator: String) -> (fn(i32, i32) -> i32) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run_instructions`
[INFO] [stderr]   --> src/registers.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn run_instructions(input: Vec<String>) -> HashMap<String, i32> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_largest_value`
[INFO] [stderr]   --> src/registers.rs:59:8
[INFO] [stderr]    |
[INFO] [stderr] 59 | pub fn find_largest_value(registers: HashMap<String, i32>) -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_garbage`
[INFO] [stderr]  --> src/stream.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn count_garbage(stream: String) -> u32 {
[INFO] [stderr]   |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hash`
[INFO] [stderr]  --> src/knot.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn hash(lengths_string: String) -> String {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `reverse_sublist`
[INFO] [stderr]   --> src/knot.rs:23:4
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn reverse_sublist(list: Vec<u32>, index: usize, size: usize) -> Vec<u32> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `inverse_captcha_main`
[INFO] [stderr]   --> src/main.rs:13:4
[INFO] [stderr]    |
[INFO] [stderr] 13 | fn inverse_captcha_main() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `checksum_main`
[INFO] [stderr]   --> src/main.rs:18:4
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn checksum_main() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `spiral_memory_main`
[INFO] [stderr]   --> src/main.rs:24:4
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn spiral_memory_main(input: u32) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `passphrase_main`
[INFO] [stderr]   --> src/main.rs:29:4
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn passphrase_main() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `realloc_main`
[INFO] [stderr]   --> src/main.rs:41:4
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn realloc_main() {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tower_main`
[INFO] [stderr]   --> src/main.rs:47:4
[INFO] [stderr]    |
[INFO] [stderr] 47 | fn tower_main() {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `registers_main`
[INFO] [stderr]   --> src/main.rs:54:4
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn registers_main() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `stream_main`
[INFO] [stderr]   --> src/main.rs:61:4
[INFO] [stderr]    |
[INFO] [stderr] 61 | fn stream_main() {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `knot_main`
[INFO] [stderr]   --> src/main.rs:66:4
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn knot_main() {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 48 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/advent_2017-fb3fac7cbf227f85
[INFO] running `"docker" "inspect" "1ec4a2e0066f8bb7d0ae6d129fa40f0168e515beeca18c5998e328065e132d09"`
[INFO] running `"docker" "rm" "-f" "1ec4a2e0066f8bb7d0ae6d129fa40f0168e515beeca18c5998e328065e132d09"`
[INFO] [stdout] 1ec4a2e0066f8bb7d0ae6d129fa40f0168e515beeca18c5998e328065e132d09