[INFO] cloning repository https://github.com/mastermatt/project_euler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mastermatt/project_euler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmastermatt%2Fproject_euler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmastermatt%2Fproject_euler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b8d91ac20bf6d16c3f1216766aac6ab71bbf26b9
[INFO] checking mastermatt/project_euler against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmastermatt%2Fproject_euler" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mastermatt/project_euler on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mastermatt/project_euler
[INFO] finished tweaking git repo https://github.com/mastermatt/project_euler
[INFO] tweaked toml for git repo https://github.com/mastermatt/project_euler written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/mastermatt/project_euler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43050fb65ef0ae161ecfdec58c3bb97261ff395cd902f321ba75a2ccab8f067f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "43050fb65ef0ae161ecfdec58c3bb97261ff395cd902f321ba75a2ccab8f067f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43050fb65ef0ae161ecfdec58c3bb97261ff395cd902f321ba75a2ccab8f067f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43050fb65ef0ae161ecfdec58c3bb97261ff395cd902f321ba75a2ccab8f067f", kill_on_drop: false }`
[INFO] [stdout] 43050fb65ef0ae161ecfdec58c3bb97261ff395cd902f321ba75a2ccab8f067f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 133e5fa34020ab6e73f3cd8daef833929161335e42fe07e59a54d1ff70ccb455
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "133e5fa34020ab6e73f3cd8daef833929161335e42fe07e59a54d1ff70ccb455", kill_on_drop: false }`
[INFO] [stderr]     Checking project_euler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `compute`
[INFO] [stdout]  --> src/p0001.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn compute(bound: u32) -> u32 {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute`
[INFO] [stdout]   --> src/p0002.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn compute(bound: u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute`
[INFO] [stdout]  --> src/p0003.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn compute(num: u64) -> u64 {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TEN`
[INFO] [stdout]  --> src/p0004.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | const TEN: u32 = 10;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute`
[INFO] [stdout]   --> src/p0004.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn compute(num: u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_palindrome`
[INFO] [stdout]   --> src/p0004.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn is_palindrome(num: u32) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute`
[INFO] [stdout]   --> src/p0005.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn compute(bound: u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gcd`
[INFO] [stdout]   --> src/p0005.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn gcd(a: u32, b: u32) -> u32 {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lcm`
[INFO] [stdout]   --> src/p0005.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn lcm(a: u32, b: u32) -> u32 {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute`
[INFO] [stdout]   --> src/p0006.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn compute(bound: u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sum_of_squares`
[INFO] [stdout]   --> src/p0006.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn sum_of_squares(bound: u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `square_of_sum`
[INFO] [stdout]   --> src/p0006.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn square_of_sum(bound: u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute`
[INFO] [stdout]  --> src/p0007.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn compute(n: usize) -> u32 {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_prime`
[INFO] [stdout]   --> src/p0007.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn is_prime(n: &u32) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `INPUT`
[INFO] [stdout]   --> src/p0008.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / const INPUT: &str = r"
[INFO] [stdout] 10 | | 73167176531330624919225119674426574742355349194934
[INFO] [stdout] 11 | | 96983520312774506326239578318016984801869478851843
[INFO] [stdout] 12 | | 85861560789112949495459501737958331952853208805511
[INFO] [stdout] ...  |
[INFO] [stdout] 29 | | 71636269561882670428252483600823257530420752963450
[INFO] [stdout] 30 | | ";
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute`
[INFO] [stdout]   --> src/p0008.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn compute(l: usize) -> u64 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute`
[INFO] [stdout]  --> src/p0009.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn compute(n: u32) -> u32 {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute`
[INFO] [stdout]   --> src/p0010.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn compute(n: usize) -> usize {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `INPUT`
[INFO] [stdout]   --> src/p0011.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | / const INPUT: &str = r"
[INFO] [stdout] 32 | | 08 02 22 97 38 15 00 40 00 75 04 05 07 78 52 12 50 77 91 08
[INFO] [stdout] 33 | | 49 49 99 40 17 81 18 57 60 87 17 40 98 43 69 48 04 56 62 00
[INFO] [stdout] 34 | | 81 49 31 73 55 79 14 29 93 71 40 67 53 88 30 03 49 13 36 65
[INFO] [stdout] ...  |
[INFO] [stdout] 51 | | 01 70 54 71 83 51 54 69 16 92 33 48 61 43 52 01 89 19 67 48
[INFO] [stdout] 52 | | ";
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_input`
[INFO] [stdout]   --> src/p0011.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn parse_input() -> Vec<Vec<u32>> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute`
[INFO] [stdout]   --> src/p0011.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn compute() -> u32 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute`
[INFO] [stdout]   --> src/p0012.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn compute(bound: u32) -> u64 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `INPUT`
[INFO] [stdout]    --> src/p0013.rs:10:1
[INFO] [stdout]     |
[INFO] [stdout] 10  | / const INPUT: [&str; 100] = [
[INFO] [stdout] 11  | |     "37107287533902102798797998220837590246510135740250",
[INFO] [stdout] 12  | |     "46376937677490009712648124896970078050417018260538",
[INFO] [stdout] 13  | |     "74324986199524741059474233309513058123726617309629",
[INFO] [stdout] ...   |
[INFO] [stdout] 110 | |     "53503534226472524250874054075591789781264330331690",
[INFO] [stdout] 111 | | ];
[INFO] [stdout]     | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_line`
[INFO] [stdout]    --> src/p0013.rs:113:4
[INFO] [stdout]     |
[INFO] [stdout] 113 | fn parse_line(line: &&str) -> Vec<u32> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute`
[INFO] [stdout]    --> src/p0013.rs:117:4
[INFO] [stdout]     |
[INFO] [stdout] 117 | fn compute() -> String {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute`
[INFO] [stdout]   --> src/p0014.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn compute() -> u32 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_chain_len`
[INFO] [stdout]   --> src/p0014.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn get_chain_len(num: u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute`
[INFO] [stdout]   --> src/p0015.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn compute(size: usize) -> u64 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compute`
[INFO] [stdout]   --> src/p0016.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn compute(pow: usize) -> u32 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `count_divisors`
[INFO] [stdout]  --> src/util/factors.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn count_divisors(num: u64) -> u32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "133e5fa34020ab6e73f3cd8daef833929161335e42fe07e59a54d1ff70ccb455", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "133e5fa34020ab6e73f3cd8daef833929161335e42fe07e59a54d1ff70ccb455", kill_on_drop: false }`
[INFO] [stdout] 133e5fa34020ab6e73f3cd8daef833929161335e42fe07e59a54d1ff70ccb455