[INFO] updating cached repository aolagers/rook
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/aolagers/rook
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/aolagers/rook" "work/ex/beta-1.38-1/sources/1.37.0/gh/aolagers/rook"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/aolagers/rook'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aolagers/rook" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aolagers/rook"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aolagers/rook'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b47dab0b07ede2f3fd8195dc2d58fb6ab6416d93
[INFO] sha for GitHub repo aolagers/rook: b47dab0b07ede2f3fd8195dc2d58fb6ab6416d93
[INFO] validating manifest of aolagers/rook on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of aolagers/rook on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing aolagers/rook
[INFO] finished frobbing aolagers/rook
[INFO] frobbed toml for aolagers/rook written to work/ex/beta-1.38-1/sources/1.37.0/gh/aolagers/rook/Cargo.toml
[INFO] started frobbing aolagers/rook
[INFO] finished frobbing aolagers/rook
[INFO] frobbed toml for aolagers/rook written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aolagers/rook/Cargo.toml
[INFO] crate aolagers/rook already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/aolagers/rook/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing aolagers/rook against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aolagers/rook:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] c5fa025e43aa5acf25422e1d103145c0adf7fd0d965d487ab0c366a79e4fd45d
[INFO] running `"docker" "start" "-a" "c5fa025e43aa5acf25422e1d103145c0adf7fd0d965d487ab0c366a79e4fd45d"`
[INFO] [stderr]    Compiling rook v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/board.rs:133:48
[INFO] [stderr]     |
[INFO] [stderr] 133 |                 let sq = BitBoard::from_square(((7-i)*8 + j));
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/pos.rs:87:25
[INFO] [stderr]    |
[INFO] [stderr] 87 |                 n @ '0' ... '8' => {
[INFO] [stderr]    |                         ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/movegenerator.rs:225:1
[INFO] [stderr]     |
[INFO] [stderr] 225 | / lazy_static! {
[INFO] [stderr] 226 | |     static ref KNIGHT_MOVES: [BitBoard; 64] = {
[INFO] [stderr] 227 | |         let mut kmoves = [BitBoard::empty(); 64];
[INFO] [stderr] 228 | |         for i in 0..64 {
[INFO] [stderr] ...   |
[INFO] [stderr] 291 | |     };
[INFO] [stderr] 292 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/movegenerator.rs:225:1
[INFO] [stderr]     |
[INFO] [stderr] 225 | / lazy_static! {
[INFO] [stderr] 226 | |     static ref KNIGHT_MOVES: [BitBoard; 64] = {
[INFO] [stderr] 227 | |         let mut kmoves = [BitBoard::empty(); 64];
[INFO] [stderr] 228 | |         for i in 0..64 {
[INFO] [stderr] ...   |
[INFO] [stderr] 291 | |     };
[INFO] [stderr] 292 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/movegenerator.rs:225:1
[INFO] [stderr]     |
[INFO] [stderr] 225 | / lazy_static! {
[INFO] [stderr] 226 | |     static ref KNIGHT_MOVES: [BitBoard; 64] = {
[INFO] [stderr] 227 | |         let mut kmoves = [BitBoard::empty(); 64];
[INFO] [stderr] 228 | |         for i in 0..64 {
[INFO] [stderr] ...   |
[INFO] [stderr] 291 | |     };
[INFO] [stderr] 292 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/movegenerator.rs:225:1
[INFO] [stderr]     |
[INFO] [stderr] 225 | / lazy_static! {
[INFO] [stderr] 226 | |     static ref KNIGHT_MOVES: [BitBoard; 64] = {
[INFO] [stderr] 227 | |         let mut kmoves = [BitBoard::empty(); 64];
[INFO] [stderr] 228 | |         for i in 0..64 {
[INFO] [stderr] ...   |
[INFO] [stderr] 291 | |     };
[INFO] [stderr] 292 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/movegenerator.rs:225:1
[INFO] [stderr]     |
[INFO] [stderr] 225 | / lazy_static! {
[INFO] [stderr] 226 | |     static ref KNIGHT_MOVES: [BitBoard; 64] = {
[INFO] [stderr] 227 | |         let mut kmoves = [BitBoard::empty(); 64];
[INFO] [stderr] 228 | |         for i in 0..64 {
[INFO] [stderr] ...   |
[INFO] [stderr] 291 | |     };
[INFO] [stderr] 292 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/movegenerator.rs:225:1
[INFO] [stderr]     |
[INFO] [stderr] 225 | / lazy_static! {
[INFO] [stderr] 226 | |     static ref KNIGHT_MOVES: [BitBoard; 64] = {
[INFO] [stderr] 227 | |         let mut kmoves = [BitBoard::empty(); 64];
[INFO] [stderr] 228 | |         for i in 0..64 {
[INFO] [stderr] ...   |
[INFO] [stderr] 291 | |     };
[INFO] [stderr] 292 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/hash.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | / lazy_static! {
[INFO] [stderr] 50 | |     static ref HASH: Mutex<HashMap<u64, u64>> = {
[INFO] [stderr] 51 | |         Mutex::new(HashMap::new())
[INFO] [stderr] 52 | |     };
[INFO] [stderr] ...  |
[INFO] [stderr] 65 | |     };
[INFO] [stderr] 66 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/hash.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | / lazy_static! {
[INFO] [stderr] 50 | |     static ref HASH: Mutex<HashMap<u64, u64>> = {
[INFO] [stderr] 51 | |         Mutex::new(HashMap::new())
[INFO] [stderr] 52 | |     };
[INFO] [stderr] ...  |
[INFO] [stderr] 65 | |     };
[INFO] [stderr] 66 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.68s
[INFO] running `"docker" "inspect" "c5fa025e43aa5acf25422e1d103145c0adf7fd0d965d487ab0c366a79e4fd45d"`
[INFO] running `"docker" "rm" "-f" "c5fa025e43aa5acf25422e1d103145c0adf7fd0d965d487ab0c366a79e4fd45d"`
[INFO] [stdout] c5fa025e43aa5acf25422e1d103145c0adf7fd0d965d487ab0c366a79e4fd45d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aolagers/rook:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] a28d19c2d3efbc6cb4bb156b5547620d5677973e5c40f39c1f352a98c4e42f55
[INFO] running `"docker" "start" "-a" "a28d19c2d3efbc6cb4bb156b5547620d5677973e5c40f39c1f352a98c4e42f55"`
[INFO] [stderr]    Compiling rook v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/board.rs:133:48
[INFO] [stderr]     |
[INFO] [stderr] 133 |                 let sq = BitBoard::from_square(((7-i)*8 + j));
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/pos.rs:87:25
[INFO] [stderr]    |
[INFO] [stderr] 87 |                 n @ '0' ... '8' => {
[INFO] [stderr]    |                         ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/movegenerator.rs:225:1
[INFO] [stderr]     |
[INFO] [stderr] 225 | / lazy_static! {
[INFO] [stderr] 226 | |     static ref KNIGHT_MOVES: [BitBoard; 64] = {
[INFO] [stderr] 227 | |         let mut kmoves = [BitBoard::empty(); 64];
[INFO] [stderr] 228 | |         for i in 0..64 {
[INFO] [stderr] ...   |
[INFO] [stderr] 291 | |     };
[INFO] [stderr] 292 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/movegenerator.rs:225:1
[INFO] [stderr]     |
[INFO] [stderr] 225 | / lazy_static! {
[INFO] [stderr] 226 | |     static ref KNIGHT_MOVES: [BitBoard; 64] = {
[INFO] [stderr] 227 | |         let mut kmoves = [BitBoard::empty(); 64];
[INFO] [stderr] 228 | |         for i in 0..64 {
[INFO] [stderr] ...   |
[INFO] [stderr] 291 | |     };
[INFO] [stderr] 292 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/movegenerator.rs:225:1
[INFO] [stderr]     |
[INFO] [stderr] 225 | / lazy_static! {
[INFO] [stderr] 226 | |     static ref KNIGHT_MOVES: [BitBoard; 64] = {
[INFO] [stderr] 227 | |         let mut kmoves = [BitBoard::empty(); 64];
[INFO] [stderr] 228 | |         for i in 0..64 {
[INFO] [stderr] ...   |
[INFO] [stderr] 291 | |     };
[INFO] [stderr] 292 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/movegenerator.rs:225:1
[INFO] [stderr]     |
[INFO] [stderr] 225 | / lazy_static! {
[INFO] [stderr] 226 | |     static ref KNIGHT_MOVES: [BitBoard; 64] = {
[INFO] [stderr] 227 | |         let mut kmoves = [BitBoard::empty(); 64];
[INFO] [stderr] 228 | |         for i in 0..64 {
[INFO] [stderr] ...   |
[INFO] [stderr] 291 | |     };
[INFO] [stderr] 292 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/movegenerator.rs:225:1
[INFO] [stderr]     |
[INFO] [stderr] 225 | / lazy_static! {
[INFO] [stderr] 226 | |     static ref KNIGHT_MOVES: [BitBoard; 64] = {
[INFO] [stderr] 227 | |         let mut kmoves = [BitBoard::empty(); 64];
[INFO] [stderr] 228 | |         for i in 0..64 {
[INFO] [stderr] ...   |
[INFO] [stderr] 291 | |     };
[INFO] [stderr] 292 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/movegenerator.rs:225:1
[INFO] [stderr]     |
[INFO] [stderr] 225 | / lazy_static! {
[INFO] [stderr] 226 | |     static ref KNIGHT_MOVES: [BitBoard; 64] = {
[INFO] [stderr] 227 | |         let mut kmoves = [BitBoard::empty(); 64];
[INFO] [stderr] 228 | |         for i in 0..64 {
[INFO] [stderr] ...   |
[INFO] [stderr] 291 | |     };
[INFO] [stderr] 292 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/hash.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | / lazy_static! {
[INFO] [stderr] 50 | |     static ref HASH: Mutex<HashMap<u64, u64>> = {
[INFO] [stderr] 51 | |         Mutex::new(HashMap::new())
[INFO] [stderr] 52 | |     };
[INFO] [stderr] ...  |
[INFO] [stderr] 65 | |     };
[INFO] [stderr] 66 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/hash.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | / lazy_static! {
[INFO] [stderr] 50 | |     static ref HASH: Mutex<HashMap<u64, u64>> = {
[INFO] [stderr] 51 | |         Mutex::new(HashMap::new())
[INFO] [stderr] 52 | |     };
[INFO] [stderr] ...  |
[INFO] [stderr] 65 | |     };
[INFO] [stderr] 66 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `nodes`
[INFO] [stderr]   --> src/lib.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 61 |     let (_, nodes, best_move) = game.negamax_start(4);
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_nodes`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `nodes`
[INFO] [stderr]   --> src/lib.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let (_, nodes, best_move) = game.negamax_start(4);
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_nodes`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `nodes`
[INFO] [stderr]   --> src/lib.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |     let (_, nodes, best_move) = game.negamax_start(4);
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_nodes`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `nodes`
[INFO] [stderr]   --> src/lib.rs:84:13
[INFO] [stderr]    |
[INFO] [stderr] 84 |     let (_, nodes, best_move) = game.negamax_start(4);
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_nodes`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let mut game = Pos::from_fen("8/8/8/8/8/ppp5/2p5/K7 w KQkq - 0 1");
[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/lib.rs:67:9
[INFO] [stderr]    |
[INFO] [stderr] 67 |     let mut game = Pos::from_fen("P7/P7/P7/P7/P7/P7/P6r/KP5r w KQkq - 0 1");
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.15s
[INFO] running `"docker" "inspect" "a28d19c2d3efbc6cb4bb156b5547620d5677973e5c40f39c1f352a98c4e42f55"`
[INFO] running `"docker" "rm" "-f" "a28d19c2d3efbc6cb4bb156b5547620d5677973e5c40f39c1f352a98c4e42f55"`
[INFO] [stdout] a28d19c2d3efbc6cb4bb156b5547620d5677973e5c40f39c1f352a98c4e42f55
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aolagers/rook:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 4f3ab09f4a02f34700af0cf639e577230337509f2e634d591e12d36e28393548
[INFO] running `"docker" "start" "-a" "4f3ab09f4a02f34700af0cf639e577230337509f2e634d591e12d36e28393548"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rook-fc9c9eff4316122c
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test bitboard::bit_moves ... ok
[INFO] [stdout] test bitboard::bit_ops ... ok
[INFO] [stdout] test dont_move_into_check ... ok
[INFO] [stdout] test is_checkmate ... ok
[INFO] [stdout] test pawn_double_start ... ok
[INFO] [stdout] test dont_move_making_discovered_check ... ok
[INFO] [stdout] test hash::full_hashing ... FAILED
[INFO] [stdout] test perft2 ... FAILED
[INFO] [stdout] test perft1 ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- hash::full_hashing stdout ----
[INFO] [stdout] thread 'hash::full_hashing' panicked at 'assertion failed: p1h != full_hash(&p_cast)', src/hash.rs:81:5
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x560ae82a9a8b - backtrace::backtrace::libunwind::trace::h23ae608c8b906c69
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stdout]    1:     0x560ae82a9a8b - backtrace::backtrace::trace_unsynchronized::h65b3ea295a85fd48
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x560ae82a9a8b - std::sys_common::backtrace::_print::h24f527b44b6cfc06
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stdout]    3:     0x560ae82a9a8b - std::sys_common::backtrace::print::h712608e4347fd64a
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stdout]    4:     0x560ae82a9a8b - std::panicking::default_hook::{{closure}}::h6c3d570c2b500048
[INFO] [stdout]                                at src/libstd/panicking.rs:200
[INFO] [stdout]    5:     0x560ae82a96fc - std::panicking::default_hook::hb29963fb4747e0dd
[INFO] [stdout]                                at src/libstd/panicking.rs:211
[INFO] [stdout]    6:     0x560ae82aa1fd - std::panicking::rust_panic_with_hook::hd1236c3083de823a
[INFO] [stdout]                                at src/libstd/panicking.rs:477
[INFO] [stdout]    7:     0x560ae8285225 - std::panicking::begin_panic::h417891ad2053fb89
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panicking.rs:411
[INFO] [stdout]    8:     0x560ae82280a5 - rook::hash::full_hashing::h43684a4f5456dabf
[INFO] [stdout]                                at src/hash.rs:81
[INFO] [stdout]    9:     0x560ae8227e1a - rook::hash::full_hashing::{{closure}}::h0585438a99a77649
[INFO] [stdout]                                at src/hash.rs:69
[INFO] [stdout]   10:     0x560ae823ebae - core::ops::function::FnOnce::call_once::hf1b0e5c5610523ec
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libcore/ops/function.rs:235
[INFO] [stdout]   11:     0x560ae8250cdf - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h355e655b04400826
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/liballoc/boxed.rs:787
[INFO] [stdout]   12:     0x560ae82acb5a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stdout]   13:     0x560ae826b2ce - std::panicking::try::h5890cbed5d1d8df0
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panicking.rs:275
[INFO] [stdout]   14:     0x560ae826b2ce - std::panic::catch_unwind::hf93cc71fc6442fdf
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panic.rs:394
[INFO] [stdout]   15:     0x560ae826b2ce - test::run_test::run_test_inner::{{closure}}::ha399a28a3066698d
[INFO] [stdout]                                at src/libtest/lib.rs:1408
[INFO] [stdout]   16:     0x560ae8246705 - std::sys_common::backtrace::__rust_begin_short_backtrace::h089859c639046955
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/sys_common/backtrace.rs:77
[INFO] [stdout]   17:     0x560ae824a915 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h8d489100862c3e01
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/thread/mod.rs:470
[INFO] [stdout]   18:     0x560ae824a915 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h5746c9e2571824d0
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panic.rs:315
[INFO] [stdout]   19:     0x560ae824a915 - std::panicking::try::do_call::hfd443b32b22f72a6
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panicking.rs:296
[INFO] [stdout]   20:     0x560ae82acb5a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stdout]   21:     0x560ae824af12 - std::panicking::try::h332f368ed7d9b7d1
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panicking.rs:275
[INFO] [stdout]   22:     0x560ae824af12 - std::panic::catch_unwind::h316b7be8b4198222
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panic.rs:394
[INFO] [stdout]   23:     0x560ae824af12 - std::thread::Builder::spawn_unchecked::{{closure}}::h916aed08bc6e5276
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/thread/mod.rs:469
[INFO] [stdout]   24:     0x560ae824af12 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h9091646be5c55ea6
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libcore/ops/function.rs:235
[INFO] [stdout]   25:     0x560ae829f82f - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hb5396a93648ae250
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/liballoc/boxed.rs:787
[INFO] [stdout]   26:     0x560ae82ac290 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h92593001847bb63e
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/liballoc/boxed.rs:787
[INFO] [stdout]   27:     0x560ae82ac290 - std::sys_common::thread::start_thread::h569f3ccc0d5dcd83
[INFO] [stdout]                                at src/libstd/sys_common/thread.rs:13
[INFO] [stdout]   28:     0x560ae82ac290 - std::sys::unix::thread::Thread::new::thread_start::hd9ff46fad032d886
[INFO] [stdout]                                at src/libstd/sys/unix/thread.rs:79
[INFO] [stdout]   29:     0x7f50f7c994a4 - start_thread
[INFO] [stdout]   30:     0x7f50f77c4d0f - __clone
[INFO] [stdout]   31:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- perft2 stdout ----
[INFO] [stdout] thread 'perft2' panicked at 'assertion failed: `(left == right)`
[INFO] [stdout]   left: `2810`,
[INFO] [stdout]  right: `2812`', src/lib.rs:43:5
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x560ae82a9a8b - backtrace::backtrace::libunwind::trace::h23ae608c8b906c69
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stdout]    1:     0x560ae82a9a8b - backtrace::backtrace::trace_unsynchronized::h65b3ea295a85fd48
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x560ae82a9a8b - std::sys_common::backtrace::_print::h24f527b44b6cfc06
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stdout]    3:     0x560ae82a9a8b - std::sys_common::backtrace::print::h712608e4347fd64a
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stdout]    4:     0x560ae82a9a8b - std::panicking::default_hook::{{closure}}::h6c3d570c2b500048
[INFO] [stdout]                                at src/libstd/panicking.rs:200
[INFO] [stdout]    5:     0x560ae82a96fc - std::panicking::default_hook::hb29963fb4747e0dd
[INFO] [stdout]                                at src/libstd/panicking.rs:211
[INFO] [stdout]    6:     0x560ae82aa1fd - std::panicking::rust_panic_with_hook::hd1236c3083de823a
[INFO] [stdout]                                at src/libstd/panicking.rs:477
[INFO] [stdout]    7:     0x560ae82a9d82 - std::panicking::continue_panic_fmt::he38ad41d6304a12c
[INFO] [stdout]                                at src/libstd/panicking.rs:384
[INFO] [stdout]    8:     0x560ae82a9ccf - std::panicking::begin_panic_fmt::h4b478f1ed53f4521
[INFO] [stdout]                                at src/libstd/panicking.rs:339
[INFO] [stdout]    9:     0x560ae8242df0 - rook::perft2::hcb37574512c2ceb4
[INFO] [stdout]                                at src/lib.rs:43
[INFO] [stdout]   10:     0x560ae82427ea - rook::perft2::{{closure}}::h2e0c1ec8abf014ca
[INFO] [stdout]                                at src/lib.rs:39
[INFO] [stdout]   11:     0x560ae823e38e - core::ops::function::FnOnce::call_once::h697b97a2dccc138f
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libcore/ops/function.rs:235
[INFO] [stdout]   12:     0x560ae8250cdf - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h355e655b04400826
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/liballoc/boxed.rs:787
[INFO] [stdout]   13:     0x560ae82acb5a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stdout]   14:     0x560ae826b2ce - std::panicking::try::h5890cbed5d1d8df0
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panicking.rs:275
[INFO] [stdout]   15:     0x560ae826b2ce - std::panic::catch_unwind::hf93cc71fc6442fdf
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panic.rs:394
[INFO] [stdout]   16:     0x560ae826b2ce - test::run_test::run_test_inner::{{closure}}::ha399a28a3066698d
[INFO] [stdout]                                at src/libtest/lib.rs:1408
[INFO] [stdout]   17:     0x560ae8246705 - std::sys_common::backtrace::__rust_begin_short_backtrace::h089859c639046955
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/sys_common/backtrace.rs:77
[INFO] [stdout]   18:     0x560ae824a915 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h8d489100862c3e01
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/thread/mod.rs:470
[INFO] [stdout]   19:     0x560ae824a915 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h5746c9e2571824d0
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panic.rs:315
[INFO] [stdout]   20:     0x560ae824a915 - std::panicking::try::do_call::hfd443b32b22f72a6
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panicking.rs:296
[INFO] [stdout]   21:     0x560ae82acb5a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stdout]   22:     0x560ae824af12 - std::panicking::try::h332f368ed7d9b7d1
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panicking.rs:275
[INFO] [stdout]   23:     0x560ae824af12 - std::panic::catch_unwind::h316b7be8b4198222
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panic.rs:394
[INFO] [stdout]   24:     0x560ae824af12 - std::thread::Builder::spawn_unchecked::{{closure}}::h916aed08bc6e5276
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/thread/mod.rs:469
[INFO] [stdout]   25:     0x560ae824af12 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h9091646be5c55ea6
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libcore/ops/function.rs:235
[INFO] [stdout]   26:     0x560ae829f82f - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hb5396a93648ae250
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/liballoc/boxed.rs:787
[INFO] [stdout]   27:     0x560ae82ac290 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h92593001847bb63e
[INFO] [stdout]                                at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/liballoc/boxed.rs:787
[INFO] [stdout]   28:     0x560ae82ac290 - std::sys_common::thread::start_thread::h569f3ccc0d5dcd83
[INFO] [stdout]                                at src/libstd/sys_common/thread.rs:13
[INFO] [stdout]   29:     0x560ae82ac290 - std::sys::unix::thread::Thread::new::thread_start::hd9ff46fad032d886
[INFO] [stdout]                                at src/libstd/sys/unix/thread.rs:79
[INFO] [stdout]   30:     0x7f50f7c994a4 - start_thread
[INFO] [stdout]   31:     0x7f50f77c4d0f - __clone
[INFO] [stdout]   32:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     hash::full_hashing
[INFO] [stdout]     perft2
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 7 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] running `"docker" "inspect" "4f3ab09f4a02f34700af0cf639e577230337509f2e634d591e12d36e28393548"`
[INFO] running `"docker" "rm" "-f" "4f3ab09f4a02f34700af0cf639e577230337509f2e634d591e12d36e28393548"`
[INFO] [stdout] 4f3ab09f4a02f34700af0cf639e577230337509f2e634d591e12d36e28393548