[INFO] cloning repository https://github.com/Swarthon/TicTacToe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Swarthon/TicTacToe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwarthon%2FTicTacToe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwarthon%2FTicTacToe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fbd308eb04ffa4ff38361cba3b519390f375d505
[INFO] checking Swarthon/TicTacToe against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwarthon%2FTicTacToe" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Swarthon/TicTacToe on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Swarthon/TicTacToe
[INFO] finished tweaking git repo https://github.com/Swarthon/TicTacToe
[INFO] tweaked toml for git repo https://github.com/Swarthon/TicTacToe written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Swarthon/TicTacToe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-5/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9404ea2ca2e672bde8ee19b5200dc2b469b8de3d5307f13f9321833222f885fb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9404ea2ca2e672bde8ee19b5200dc2b469b8de3d5307f13f9321833222f885fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9404ea2ca2e672bde8ee19b5200dc2b469b8de3d5307f13f9321833222f885fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9404ea2ca2e672bde8ee19b5200dc2b469b8de3d5307f13f9321833222f885fb", kill_on_drop: false }`
[INFO] [stdout] 9404ea2ca2e672bde8ee19b5200dc2b469b8de3d5307f13f9321833222f885fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 260d073061bd596f91eb322f22870895d71a056b34bcb4499945ca9fa3ce5a68
[INFO] running `Command { std: "docker" "start" "-a" "260d073061bd596f91eb322f22870895d71a056b34bcb4499945ca9fa3ce5a68", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]     Checking piston-float v0.3.0
[INFO] [stderr]    Compiling dtoa v0.4.6
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling khronos_api v1.0.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking shader_version v0.2.2
[INFO] [stderr]    Compiling khronos_api v2.2.0
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking piston-texture v0.5.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking read_color v0.1.0
[INFO] [stderr]     Checking interpolation v0.1.0
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking piston-shaders_graphics2d v0.2.1
[INFO] [stderr]     Checking piston-shaders_graphics2d v0.3.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking find_folder v0.3.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking piston-viewport v0.3.0
[INFO] [stderr]     Checking vecmath v0.3.1
[INFO] [stderr]    Compiling xml-rs v0.6.1
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]     Checking petgraph v0.2.10
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[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 phf v0.7.24
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling wayland-client v0.7.8
[INFO] [stderr]     Checking piston2d-graphics v0.20.1
[INFO] [stderr]     Checking piston2d-graphics v0.21.1
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking tempfile v2.2.0
[INFO] [stderr]     Checking daggy v0.4.1
[INFO] [stderr]     Checking fs2 v0.2.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling gl_generator v0.5.5
[INFO] [stderr]     Checking gfx_core v0.6.1
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking num-iter v0.1.41
[INFO] [stderr]     Checking memmap v0.4.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking png v0.6.2
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking pistoncore-input v0.17.1
[INFO] [stderr]     Checking pistoncore-input v0.16.0
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking stb_truetype v0.2.8
[INFO] [stderr]    Compiling gl_generator v0.6.1
[INFO] [stderr]     Checking rayon-core v1.8.1
[INFO] [stderr]     Checking rusttype v0.2.4
[INFO] [stderr]    Compiling glutin v0.7.4
[INFO] [stderr]    Compiling gfx_gl v0.3.1
[INFO] [stderr]    Compiling glium v0.16.0
[INFO] [stderr]     Checking pistoncore-window v0.25.0
[INFO] [stderr]     Checking pistoncore-window v0.26.2
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking rayon v1.4.1
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking pistoncore-event_loop v0.28.0
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking pistoncore-event_loop v0.31.4
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]     Checking piston v0.31.4
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]     Checking gfx v0.14.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking image v0.12.4
[INFO] [stderr]     Checking gfx_device_gl v0.13.1
[INFO] [stderr]     Checking piston-gfx_texture v0.22.1
[INFO] [stderr]     Checking piston-gfx_texture v0.21.1
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.36.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.38.0
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]     Checking dlib v0.3.1
[INFO] [stderr]     Checking wayland-sys v0.7.8
[INFO] [stderr]     Checking wayland-window v0.4.4
[INFO] [stderr]     Checking wayland-kbd v0.6.3
[INFO] [stderr]     Checking winit v0.5.11
[INFO] [stderr]     Checking pistoncore-glutin_window v0.34.1
[INFO] [stderr]     Checking pistoncore-glutin_window v0.35.1
[INFO] [stderr]     Checking piston_window v0.64.0
[INFO] [stderr]     Checking conrod v0.49.0
[INFO] [stderr]     Checking tic_tac_toe v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `q`
[INFO] [stdout]    --> src/ai.rs:132:6
[INFO] [stdout]     |
[INFO] [stdout] 132 |     for q in 0..9 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_q`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `q`
[INFO] [stdout]    --> src/ai.rs:132:6
[INFO] [stdout]     |
[INFO] [stdout] 132 |     for q in 0..9 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_q`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `windows`
[INFO] [stdout]  --> src/graphics/main_menu.rs:7:16
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn update(    windows : &conrod::backend::piston::Window,
[INFO] [stdout]   |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_windows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `windows`
[INFO] [stdout]  --> src/graphics/main_menu.rs:7:16
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn update(    windows : &conrod::backend::piston::Window,
[INFO] [stdout]   |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_windows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 04s
[INFO] running `Command { std: "docker" "inspect" "260d073061bd596f91eb322f22870895d71a056b34bcb4499945ca9fa3ce5a68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "260d073061bd596f91eb322f22870895d71a056b34bcb4499945ca9fa3ce5a68", kill_on_drop: false }`
[INFO] [stdout] 260d073061bd596f91eb322f22870895d71a056b34bcb4499945ca9fa3ce5a68