[INFO] updating cached repository https://github.com/moreheadm/xanadu
[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] a41dc5026a0b6832ca6f5eca55ce2289f1c806ae
[INFO] checking moreheadm/xanadu against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmoreheadm%2Fxanadu" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/moreheadm/xanadu on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/moreheadm/xanadu
[INFO] finished tweaking git repo https://github.com/moreheadm/xanadu
[INFO] tweaked toml for git repo https://github.com/moreheadm/xanadu written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/moreheadm/xanadu already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e38d79f55fa22559dd8dbcf2c2f3305d8119f26eb48c52bab3c53846427712dc
[INFO] running `"docker" "start" "-a" "e38d79f55fa22559dd8dbcf2c2f3305d8119f26eb48c52bab3c53846427712dc"`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling shakmaty v0.13.0
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]     Checking btoi v0.4.0
[INFO] [stderr]     Checking xanadu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/runner.rs:226:9
[INFO] [stderr]     |
[INFO] [stderr] 226 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Material`, `Piece`
[INFO] [stderr]  --> src/engine.rs:1:53
[INFO] [stderr]   |
[INFO] [stderr] 1 | use shakmaty::{Chess, Move, Position, Setup, Color, Material, MaterialSide,
[INFO] [stderr]   |                                                     ^^^^^^^^
[INFO] [stderr] 2 |         Outcome, Piece, Role, Board};
[INFO] [stderr]   |                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Material`, `Piece`
[INFO] [stderr]  --> src/engine.rs:1:53
[INFO] [stderr]   |
[INFO] [stderr] 1 | use shakmaty::{Chess, Move, Position, Setup, Color, Material, MaterialSide,
[INFO] [stderr]   |                                                     ^^^^^^^^
[INFO] [stderr] 2 |         Outcome, Piece, Role, Board};
[INFO] [stderr]   |                  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `legals`
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let legals = pos.legals();
[INFO] [stderr]   |         ^^^^^^ help: consider prefixing with an underscore: `_legals`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokens`
[INFO] [stderr]    --> src/runner.rs:119:29
[INFO] [stderr]     |
[INFO] [stderr] 119 |     fn debug_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stderr]     |                             ^^^^^^ help: consider prefixing with an underscore: `_tokens`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokens`
[INFO] [stderr]    --> src/runner.rs:127:33
[INFO] [stderr]     |
[INFO] [stderr] 127 |     fn setoption_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stderr]     |                                 ^^^^^^ help: consider prefixing with an underscore: `_tokens`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokens`
[INFO] [stderr]    --> src/runner.rs:131:32
[INFO] [stderr]     |
[INFO] [stderr] 131 |     fn register_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stderr]     |                                ^^^^^^ help: consider prefixing with an underscore: `_tokens`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokens`
[INFO] [stderr]    --> src/runner.rs:135:34
[INFO] [stderr]     |
[INFO] [stderr] 135 |     fn ucinewgame_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stderr]     |                                  ^^^^^^ help: consider prefixing with an underscore: `_tokens`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fen_start`
[INFO] [stderr]    --> src/runner.rs:145:18
[INFO] [stderr]     |
[INFO] [stderr] 145 |             Some(fen_start) => {
[INFO] [stderr]     |                  ^^^^^^^^^ help: consider prefixing with an underscore: `_fen_start`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokens`
[INFO] [stderr]    --> src/runner.rs:207:28
[INFO] [stderr]     |
[INFO] [stderr] 207 |     fn stop_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stderr]     |                            ^^^^^^ help: consider prefixing with an underscore: `_tokens`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokens`
[INFO] [stderr]    --> src/runner.rs:218:33
[INFO] [stderr]     |
[INFO] [stderr] 218 |     fn ponderhit_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stderr]     |                                 ^^^^^^ help: consider prefixing with an underscore: `_tokens`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `eval`
[INFO] [stderr]    --> src/engine.rs:172:23
[INFO] [stderr]     |
[INFO] [stderr] 172 |             let (mov, eval) = match self.position.turn() {
[INFO] [stderr]     |                       ^^^^ help: consider prefixing with an underscore: `_eval`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `legals`
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let legals = pos.legals();
[INFO] [stderr]   |         ^^^^^^ help: consider prefixing with an underscore: `_legals`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokens`
[INFO] [stderr]    --> src/runner.rs:119:29
[INFO] [stderr]     |
[INFO] [stderr] 119 |     fn debug_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stderr]     |                             ^^^^^^ help: consider prefixing with an underscore: `_tokens`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokens`
[INFO] [stderr]    --> src/runner.rs:127:33
[INFO] [stderr]     |
[INFO] [stderr] 127 |     fn setoption_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stderr]     |                                 ^^^^^^ help: consider prefixing with an underscore: `_tokens`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokens`
[INFO] [stderr]    --> src/runner.rs:131:32
[INFO] [stderr]     |
[INFO] [stderr] 131 |     fn register_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stderr]     |                                ^^^^^^ help: consider prefixing with an underscore: `_tokens`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokens`
[INFO] [stderr]    --> src/runner.rs:135:34
[INFO] [stderr]     |
[INFO] [stderr] 135 |     fn ucinewgame_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stderr]     |                                  ^^^^^^ help: consider prefixing with an underscore: `_tokens`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fen_start`
[INFO] [stderr]    --> src/runner.rs:145:18
[INFO] [stderr]     |
[INFO] [stderr] 145 |             Some(fen_start) => {
[INFO] [stderr]     |                  ^^^^^^^^^ help: consider prefixing with an underscore: `_fen_start`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokens`
[INFO] [stderr]    --> src/runner.rs:207:28
[INFO] [stderr]     |
[INFO] [stderr] 207 |     fn stop_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stderr]     |                            ^^^^^^ help: consider prefixing with an underscore: `_tokens`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tokens`
[INFO] [stderr]    --> src/runner.rs:218:33
[INFO] [stderr]     |
[INFO] [stderr] 218 |     fn ponderhit_cmd(&mut self, tokens: &mut Split<char>) {
[INFO] [stderr]     |                                 ^^^^^^ help: consider prefixing with an underscore: `_tokens`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `eval`
[INFO] [stderr]    --> src/engine.rs:172:23
[INFO] [stderr]     |
[INFO] [stderr] 172 |             let (mov, eval) = match self.position.turn() {
[INFO] [stderr]     |                       ^^^^ help: consider prefixing with an underscore: `_eval`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/engine.rs:189:46
[INFO] [stderr]     |
[INFO] [stderr] 189 |     fn searchmax(&mut self, position: Chess, mut upper: i32, mut lower: i32,
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/engine.rs:231:62
[INFO] [stderr]     |
[INFO] [stderr] 231 |     fn searchmin(&mut self, position: Chess, mut upper: i32, mut lower: i32,
[INFO] [stderr]     |                                                              ----^^^^^
[INFO] [stderr]     |                                                              |
[INFO] [stderr]     |                                                              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/engine.rs:189:46
[INFO] [stderr]     |
[INFO] [stderr] 189 |     fn searchmax(&mut self, position: Chess, mut upper: i32, mut lower: i32,
[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: method is never used: `random_search`
[INFO] [stderr]    --> src/engine.rs:157:5
[INFO] [stderr]     |
[INFO] [stderr] 157 |     fn random_search(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `king_value` should have an upper case name
[INFO] [stderr]  --> src/engine.rs:7:7
[INFO] [stderr]   |
[INFO] [stderr] 7 | const king_value: [i32; 64] =
[INFO] [stderr]   |       ^^^^^^^^^^ help: convert the identifier to upper case: `KING_VALUE`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/engine.rs:231:62
[INFO] [stderr]     |
[INFO] [stderr] 231 |     fn searchmin(&mut self, position: Chess, mut upper: i32, mut lower: i32,
[INFO] [stderr]     |                                                              ----^^^^^
[INFO] [stderr]     |                                                              |
[INFO] [stderr]     |                                                              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]   |
[INFO] [stderr] warning: method is never used: `random_search`
[INFO] [stderr]    --> src/engine.rs:157:5
[INFO] [stderr]     |
[INFO] [stderr] 157 |     fn random_search(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `queen_value` should have an upper case name
[INFO] [stderr]   --> src/engine.rs:18:7
[INFO] [stderr]    |
[INFO] [stderr] 18 | const queen_value: [i32; 64] = 
[INFO] [stderr]    |       ^^^^^^^^^^^ help: convert the identifier to upper case: `QUEEN_VALUE`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `rook_value` should have an upper case name
[INFO] [stderr]   --> src/engine.rs:28:7
[INFO] [stderr]    |
[INFO] [stderr] 28 | const rook_value: [i32; 64] = 
[INFO] [stderr]    |       ^^^^^^^^^^ help: convert the identifier to upper case: `ROOK_VALUE`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `knight_value` should have an upper case name
[INFO] [stderr]   --> src/engine.rs:38:7
[INFO] [stderr]    |
[INFO] [stderr] 38 | const knight_value: [i32; 64] = 
[INFO] [stderr]    |       ^^^^^^^^^^^^ help: convert the identifier to upper case: `KNIGHT_VALUE`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `bishop_value` should have an upper case name
[INFO] [stderr]   --> src/engine.rs:48:7
[INFO] [stderr]    |
[INFO] [stderr] 48 | const bishop_value: [i32; 64] =
[INFO] [stderr]    |       ^^^^^^^^^^^^ help: convert the identifier to upper case: `BISHOP_VALUE`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `pawn_value` should have an upper case name
[INFO] [stderr]   --> src/engine.rs:58:7
[INFO] [stderr]    |
[INFO] [stderr] 58 | const pawn_value: [i32; 64] = 
[INFO] [stderr]    |       ^^^^^^^^^^ help: convert the identifier to upper case: `PAWN_VALUE`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `king_value` should have an upper case name
[INFO] [stderr]  --> src/engine.rs:7:7
[INFO] [stderr]   |
[INFO] [stderr] 7 | const king_value: [i32; 64] =
[INFO] [stderr]   |       ^^^^^^^^^^ help: convert the identifier to upper case: `KING_VALUE`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `queen_value` should have an upper case name
[INFO] [stderr]   --> src/engine.rs:18:7
[INFO] [stderr]    |
[INFO] [stderr] 18 | const queen_value: [i32; 64] = 
[INFO] [stderr]    |       ^^^^^^^^^^^ help: convert the identifier to upper case: `QUEEN_VALUE`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `rook_value` should have an upper case name
[INFO] [stderr]   --> src/engine.rs:28:7
[INFO] [stderr]    |
[INFO] [stderr] 28 | const rook_value: [i32; 64] = 
[INFO] [stderr]    |       ^^^^^^^^^^ help: convert the identifier to upper case: `ROOK_VALUE`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `knight_value` should have an upper case name
[INFO] [stderr]   --> src/engine.rs:38:7
[INFO] [stderr]    |
[INFO] [stderr] 38 | const knight_value: [i32; 64] = 
[INFO] [stderr]    |       ^^^^^^^^^^^^ help: convert the identifier to upper case: `KNIGHT_VALUE`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `bishop_value` should have an upper case name
[INFO] [stderr]   --> src/engine.rs:48:7
[INFO] [stderr]    |
[INFO] [stderr] 48 | const bishop_value: [i32; 64] =
[INFO] [stderr]    |       ^^^^^^^^^^^^ help: convert the identifier to upper case: `BISHOP_VALUE`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `pawn_value` should have an upper case name
[INFO] [stderr]   --> src/engine.rs:58:7
[INFO] [stderr]    |
[INFO] [stderr] 58 | const pawn_value: [i32; 64] = 
[INFO] [stderr]    |       ^^^^^^^^^^ help: convert the identifier to upper case: `PAWN_VALUE`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.29s
[INFO] running `"docker" "inspect" "e38d79f55fa22559dd8dbcf2c2f3305d8119f26eb48c52bab3c53846427712dc"`
[INFO] running `"docker" "rm" "-f" "e38d79f55fa22559dd8dbcf2c2f3305d8119f26eb48c52bab3c53846427712dc"`
[INFO] [stdout] e38d79f55fa22559dd8dbcf2c2f3305d8119f26eb48c52bab3c53846427712dc