[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] testing BenWiederhake/mastermind against try#028592fec99e54cc92def5a2a849c673b066dd93 for pr-146098
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenWiederhake%2Fmastermind" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-6-tc2/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-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BenWiederhake/mastermind on toolchain 028592fec99e54cc92def5a2a849c673b066dd93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+028592fec99e54cc92def5a2a849c673b066dd93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+028592fec99e54cc92def5a2a849c673b066dd93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+028592fec99e54cc92def5a2a849c673b066dd93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab0ae41bb7816cb9edc5e2fc505e16a4c896957f0f4be22b5b8cda18a4dcfb42
[INFO] running `Command { std: "docker" "start" "-a" "ab0ae41bb7816cb9edc5e2fc505e16a4c896957f0f4be22b5b8cda18a4dcfb42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab0ae41bb7816cb9edc5e2fc505e16a4c896957f0f4be22b5b8cda18a4dcfb42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab0ae41bb7816cb9edc5e2fc505e16a4c896957f0f4be22b5b8cda18a4dcfb42", kill_on_drop: false }`
[INFO] [stdout] ab0ae41bb7816cb9edc5e2fc505e16a4c896957f0f4be22b5b8cda18a4dcfb42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "-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" "+028592fec99e54cc92def5a2a849c673b066dd93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 507deab7dbc1e2bc25abb2fc63cd04df77d663a8019c9fa99eb63ae2f87d5cd5
[INFO] running `Command { std: "docker" "start" "-a" "507deab7dbc1e2bc25abb2fc63cd04df77d663a8019c9fa99eb63ae2f87d5cd5", kill_on_drop: false }`
[INFO] [stderr]    Compiling phf_mut v0.4.1
[INFO] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) 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] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/main.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |     fn iter(&self) -> ComboVecIter {
[INFO] [stdout]     |             ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |             |
[INFO] [stdout]     |             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 135 |     fn iter(&self) -> ComboVecIter<'_> {
[INFO] [stdout]     |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "507deab7dbc1e2bc25abb2fc63cd04df77d663a8019c9fa99eb63ae2f87d5cd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "507deab7dbc1e2bc25abb2fc63cd04df77d663a8019c9fa99eb63ae2f87d5cd5", kill_on_drop: false }`
[INFO] [stdout] 507deab7dbc1e2bc25abb2fc63cd04df77d663a8019c9fa99eb63ae2f87d5cd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "-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" "+028592fec99e54cc92def5a2a849c673b066dd93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f45cacb4afd8aa22b1f53f08a238bcfd642a40063a19a3c03a338a45042586f
[INFO] running `Command { std: "docker" "start" "-a" "8f45cacb4afd8aa22b1f53f08a238bcfd642a40063a19a3c03a338a45042586f", kill_on_drop: false }`
[INFO] [stderr]    Compiling mastermind64 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/main.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |     fn iter(&self) -> ComboVecIter {
[INFO] [stdout]     |             ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |             |
[INFO] [stdout]     |             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 135 |     fn iter(&self) -> ComboVecIter<'_> {
[INFO] [stdout]     |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "8f45cacb4afd8aa22b1f53f08a238bcfd642a40063a19a3c03a338a45042586f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f45cacb4afd8aa22b1f53f08a238bcfd642a40063a19a3c03a338a45042586f", kill_on_drop: false }`
[INFO] [stdout] 8f45cacb4afd8aa22b1f53f08a238bcfd642a40063a19a3c03a338a45042586f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "-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" "+028592fec99e54cc92def5a2a849c673b066dd93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 227ea2b51466d51af2c76611b7eb75316e63def63e0fd4df8407d0c6ac4d0743
[INFO] running `Command { std: "docker" "start" "-a" "227ea2b51466d51af2c76611b7eb75316e63def63e0fd4df8407d0c6ac4d0743", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/main.rs:135:13
[INFO] [stderr]     |
[INFO] [stderr] 135 |     fn iter(&self) -> ComboVecIter {
[INFO] [stderr]     |             ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |             |
[INFO] [stderr]     |             the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 135 |     fn iter(&self) -> ComboVecIter<'_> {
[INFO] [stderr]     |                                   ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `mastermind64` (bin "mastermind64" test) generated 1 warning (run `cargo fix --bin "mastermind64" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mastermind64-5f466dab7a5e6f3d)
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test tests::test_best_move_2_3 ... ok
[INFO] [stdout] test tests::test_classify_buckets_2 ... ok
[INFO] [stdout] test tests::test_classify_counts_2 ... ok
[INFO] [stdout] test tests::test_classify_counts_4 ... ok
[INFO] [stdout] test tests::test_combination_gen_2_3 ... ok
[INFO] [stdout] test tests::test_combovec_retain_3_2_simple2 ... ok
[INFO] [stdout] test tests::test_combination_count ... ok
[INFO] [stdout] test tests::test_combovec_retain_3_2_simple ... ok
[INFO] [stdout] test tests::test_evaluate ... ok
[INFO] [stdout] test tests::test_phf_max_sum_pairs_2 ... ok
[INFO] [stdout] test tests::test_phf_max_sum_pairs_3 ... ok
[INFO] [stdout] test tests::test_phf_max_sum_pairs_0 ... ok
[INFO] [stdout] test tests::test_combination_gen_5_8 ... ok
[INFO] [stdout] test tests::test_phf_max_sum_pairs_1 ... ok
[INFO] [stdout] test tests::test_upper_triangle ... ok
[INFO] [stdout] test tests::test_combination_gen_3_2 ... ok
[INFO] [stdout] test tests::test_combovec_retain_5_8_simple2 ... ok
[INFO] [stdout] test tests::test_best_move_4_6 ... ok
[INFO] [stdout] test tests::test_best_move_5_8 has been running for over 60 seconds
[INFO] [stdout] test tests::test_best_move_5_8 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 331.09s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "227ea2b51466d51af2c76611b7eb75316e63def63e0fd4df8407d0c6ac4d0743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "227ea2b51466d51af2c76611b7eb75316e63def63e0fd4df8407d0c6ac4d0743", kill_on_drop: false }`
[INFO] [stdout] 227ea2b51466d51af2c76611b7eb75316e63def63e0fd4df8407d0c6ac4d0743