[INFO] cloning repository https://github.com/inda20plusplus/gestsson-chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/inda20plusplus/gestsson-chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finda20plusplus%2Fgestsson-chess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finda20plusplus%2Fgestsson-chess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 315e0260c05873cc1a55efb93930836700a13373
[INFO] testing inda20plusplus/gestsson-chess against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finda20plusplus%2Fgestsson-chess" "/workspace/builds/worker-61/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-61/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/inda20plusplus/gestsson-chess on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/inda20plusplus/gestsson-chess
[INFO] finished tweaking git repo https://github.com/inda20plusplus/gestsson-chess
[INFO] tweaked toml for git repo https://github.com/inda20plusplus/gestsson-chess written to /workspace/builds/worker-61/source/Cargo.toml
[INFO] crate git repo https://github.com/inda20plusplus/gestsson-chess already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dialog v0.3.0
[INFO] [stderr]   Downloaded rpassword v2.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a85b53e59cb6d1fe296acc58f8e1b8642af82a57255a41d24dfdba3dd8aa4307
[INFO] running `Command { std: "docker" "start" "-a" "a85b53e59cb6d1fe296acc58f8e1b8642af82a57255a41d24dfdba3dd8aa4307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a85b53e59cb6d1fe296acc58f8e1b8642af82a57255a41d24dfdba3dd8aa4307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a85b53e59cb6d1fe296acc58f8e1b8642af82a57255a41d24dfdba3dd8aa4307", kill_on_drop: false }`
[INFO] [stdout] a85b53e59cb6d1fe296acc58f8e1b8642af82a57255a41d24dfdba3dd8aa4307
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34beb92c217b25eb1b48acb3d17b5e9cee1f676ddd1e94bc07c90845fcd34f71
[INFO] running `Command { std: "docker" "start" "-a" "34beb92c217b25eb1b48acb3d17b5e9cee1f676ddd1e94bc07c90845fcd34f71", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling libloading v0.6.3
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling linked-hash-map v0.5.3
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling gimli v0.22.0
[INFO] [stderr]    Compiling object v0.20.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling xi-unicode v0.2.1
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling mint v0.5.5
[INFO] [stderr]    Compiling hound v3.4.0
[INFO] [stderr]    Compiling claxon v0.4.3
[INFO] [stderr]    Compiling chess_engine v0.1.0 (/opt/rustwide/workdir/chess_engine)
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.2
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling draw_state v0.8.0
[INFO] [stdout] warning: unused import: `std::mem::replace`
[INFO] [stdout]   --> chess_engine/src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::mem::replace;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]    --> chess_engine/src/lib.rs:232:52
[INFO] [stdout]     |
[INFO] [stdout] 232 |         let pieces = self.enumerate_pieces(|piece, pos| piece.team != team);
[INFO] [stdout]     |                                                    ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]    --> chess_engine/src/lib.rs:334:39
[INFO] [stdout]     |
[INFO] [stdout] 334 |         self.enumerate_pieces(|piece, point| piece.team == self.current_player)
[INFO] [stdout]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]    --> chess_engine/src/lib.rs:338:39
[INFO] [stdout]     |
[INFO] [stdout] 338 |         self.enumerate_pieces(|piece, point| piece.necessity)
[INFO] [stdout]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> chess_engine/src/lib.rs:342:40
[INFO] [stdout]     |
[INFO] [stdout] 342 |         self.enumerate_pieces(|piece, (x, y)| piece.team != self.current_player)
[INFO] [stdout]     |                                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> chess_engine/src/lib.rs:342:43
[INFO] [stdout]     |
[INFO] [stdout] 342 |         self.enumerate_pieces(|piece, (x, y)| piece.team != self.current_player)
[INFO] [stdout]     |                                           ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `only_lethal`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:123:61
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub fn pawn_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:164:52
[INFO] [stdout]     |
[INFO] [stdout] 164 |         for rook in board.enumerate_pieces(|piece, point| {
[INFO] [stdout]     |                                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `only_lethal`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:196:61
[INFO] [stdout]     |
[INFO] [stdout] 196 | pub fn rook_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `only_lethal`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:208:63
[INFO] [stdout]     |
[INFO] [stdout] 208 | pub fn bishop_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `only_lethal`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:219:62
[INFO] [stdout]     |
[INFO] [stdout] 219 | pub fn queen_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stdout]     |                                                              ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `only_lethal`
[INFO] [stdout]    --> chess_engine/src/pieces/moves.rs:234:63
[INFO] [stdout]     |
[INFO] [stdout] 234 | pub fn knight_moves(piece: &Piece, pos: Point, board: &Board, only_lethal: bool) -> MoveCollection {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_only_lethal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> chess_engine/src/chess_move.rs:52:27
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn perform(&mut self, mut tiles: &mut BoardCollection) {
[INFO] [stdout]    |                           ----^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> chess_engine/src/chess_move.rs:68:27
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn reverse(&mut self, mut tiles: &mut BoardCollection) {
[INFO] [stdout]    |                           ----^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> chess_engine/src/pieces/moves.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     mut x: i32,
[INFO] [stdout]    |     ----^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling gfx_core v0.9.2
[INFO] [stderr]    Compiling gif v0.10.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling matrixmultiply v0.2.3
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling bzip2-sys v0.1.9+1.0.8
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[INFO] [stderr]    Compiling gfx_gl v0.6.1
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling addr2line v0.13.0
[INFO] [stderr] error: could not compile `gimli`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name gimli --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gimli-0.22.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="read"' -C metadata=fd00db9ebee5a702 -C extra-filename=-fd00db9ebee5a702 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "34beb92c217b25eb1b48acb3d17b5e9cee1f676ddd1e94bc07c90845fcd34f71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34beb92c217b25eb1b48acb3d17b5e9cee1f676ddd1e94bc07c90845fcd34f71", kill_on_drop: false }`
[INFO] [stdout] 34beb92c217b25eb1b48acb3d17b5e9cee1f676ddd1e94bc07c90845fcd34f71
