[INFO] cloning repository https://github.com/BenWiederhake/mastermind
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BenWiederhake/mastermind" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenWiederhake%2Fmastermind", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenWiederhake%2Fmastermind'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3d60e4beda679705188ceef612df96f988ffc47e
[INFO] checking BenWiederhake/mastermind against master#a26e97be8826d408309fffbd8168362365719f50 for pr-136776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenWiederhake%2Fmastermind" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BenWiederhake/mastermind on toolchain a26e97be8826d408309fffbd8168362365719f50
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/BenWiederhake/mastermind
[INFO] finished tweaking git repo https://github.com/BenWiederhake/mastermind
[INFO] tweaked toml for git repo https://github.com/BenWiederhake/mastermind written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/BenWiederhake/mastermind 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" "+a26e97be8826d408309fffbd8168362365719f50" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded phf_mut v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54bf6ecb1d0f656cfdb358f2bda52f54caa2088ec999aa1c87e0ff6baa5e5267
[INFO] running `Command { std: "docker" "start" "-a" "54bf6ecb1d0f656cfdb358f2bda52f54caa2088ec999aa1c87e0ff6baa5e5267", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54bf6ecb1d0f656cfdb358f2bda52f54caa2088ec999aa1c87e0ff6baa5e5267", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54bf6ecb1d0f656cfdb358f2bda52f54caa2088ec999aa1c87e0ff6baa5e5267", kill_on_drop: false }`
[INFO] [stdout] 54bf6ecb1d0f656cfdb358f2bda52f54caa2088ec999aa1c87e0ff6baa5e5267
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97fa70a01cdd2ac1f4effeec1c64cb042ad3f0ff4e7d0e9d17146aaacbd2106d
[INFO] running `Command { std: "docker" "start" "-a" "97fa70a01cdd2ac1f4effeec1c64cb042ad3f0ff4e7d0e9d17146aaacbd2106d", kill_on_drop: false }`
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking phf_mut v0.4.1
[INFO] [stderr]     Checking mastermind64 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `MAX_COLS` is never used
[INFO] [stdout]  --> src/main.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const MAX_COLS: usize = 8;
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gauss` is never used
[INFO] [stdout]  --> src/main.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn gauss(n: usize) -> usize {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `upper_triangle_size` is never used
[INFO] [stdout]   --> src/main.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn upper_triangle_size(rows_before: usize, cols: usize) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MaxSumPairs` is never constructed
[INFO] [stdout]   --> src/main.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct MaxSumPairs {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/main.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl MaxSumPairs {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 22 |     pub fn new(max_sum: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `combination_count` is never used
[INFO] [stdout]   --> src/main.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn combination_count(slots: usize, cols: usize) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `try_increment` is never used
[INFO] [stdout]   --> src/main.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn try_increment(combo: &mut [u8], cols: usize) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ComboVec` is never constructed
[INFO] [stdout]   --> src/main.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | struct ComboVec {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/main.rs:60:8
[INFO] [stdout]     |
[INFO] [stdout] 59  | impl ComboVec {
[INFO] [stdout]     | ------------- associated items in this implementation
[INFO] [stdout] 60  |     fn new(slots: usize) -> ComboVec {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 67  |     fn all(slots: usize, cols: usize) -> ComboVec {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 85  |     fn len(&self) -> usize {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 91  |     fn entry(&self, index: usize) -> &[u8] {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95  |     fn retain_matches(&mut self, code: &[u8], expected_result: (usize, usize)) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |     fn append(&mut self, entry: &[u8]) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |     fn classify_buckets(&self, code: &[u8]) -> Map<ComboVec, MaxSumPairs> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     fn classify_counts(&self, code: &[u8]) -> Map<usize, MaxSumPairs> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 135 |     fn iter(&self) -> ComboVecIter {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ComboVecIter` is never constructed
[INFO] [stdout]    --> src/main.rs:144:8
[INFO] [stdout]     |
[INFO] [stdout] 144 | struct ComboVecIter<'a> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compute_map_entropy` is never used
[INFO] [stdout]    --> src/main.rs:162:4
[INFO] [stdout]     |
[INFO] [stdout] 162 | fn compute_map_entropy(map: &Map<usize, MaxSumPairs>) -> f32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Guess` is never constructed
[INFO] [stdout]    --> src/main.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 177 | struct Guess {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compute_best_guess` is never used
[INFO] [stdout]    --> src/main.rs:206:4
[INFO] [stdout]     |
[INFO] [stdout] 206 | fn compute_best_guess(possible_guesses: &ComboVec, possible_solutions: &ComboVec) -> Guess {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `evaluate_match` is never used
[INFO] [stdout]    --> src/main.rs:221:4
[INFO] [stdout]     |
[INFO] [stdout] 221 | fn evaluate_match(code1: &[u8], code2: &[u8]) -> (usize, usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "97fa70a01cdd2ac1f4effeec1c64cb042ad3f0ff4e7d0e9d17146aaacbd2106d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97fa70a01cdd2ac1f4effeec1c64cb042ad3f0ff4e7d0e9d17146aaacbd2106d", kill_on_drop: false }`
[INFO] [stdout] 97fa70a01cdd2ac1f4effeec1c64cb042ad3f0ff4e7d0e9d17146aaacbd2106d
