[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 beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwarthon%2FTicTacToe" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Swarthon/TicTacToe on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-6/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" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-6/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[INFO] the lockfile is outdated, regenerating it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" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfdcc1a76dd4072deed988beb0c42f2a6642b49417f627fd8ded41551f1280d7
[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" "dfdcc1a76dd4072deed988beb0c42f2a6642b49417f627fd8ded41551f1280d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfdcc1a76dd4072deed988beb0c42f2a6642b49417f627fd8ded41551f1280d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfdcc1a76dd4072deed988beb0c42f2a6642b49417f627fd8ded41551f1280d7", kill_on_drop: false }`
[INFO] [stdout] dfdcc1a76dd4072deed988beb0c42f2a6642b49417f627fd8ded41551f1280d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8daa985c86619f727de3f18639ea29f2fbe820fd3e7a6ca809d897513432e1e4
[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" "8daa985c86619f727de3f18639ea29f2fbe820fd3e7a6ca809d897513432e1e4", kill_on_drop: false }`
[INFO] [stderr]     Checking shader_version v0.2.2
[INFO] [stderr]     Checking smallvec v0.1.8
[INFO] [stderr]     Checking petgraph v0.2.10
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]     Checking pistoncore-input v0.17.1
[INFO] [stderr]     Checking pistoncore-input v0.16.0
[INFO] [stderr]     Checking piston2d-graphics v0.21.1
[INFO] [stderr]     Checking piston2d-graphics v0.20.1
[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 gfx_core v0.6.1
[INFO] [stderr]     Checking png v0.6.2
[INFO] [stderr]     Checking winit v0.5.11
[INFO] [stderr]     Checking image v0.12.4
[INFO] [stderr]     Checking daggy v0.4.1
[INFO] [stderr]     Checking pistoncore-window v0.25.0
[INFO] [stderr]     Checking pistoncore-window v0.26.2
[INFO] [stderr]     Checking pistoncore-event_loop v0.28.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.31.4
[INFO] [stderr]     Checking piston v0.31.4
[INFO] [stderr]     Checking backtrace v0.2.3
[INFO] [stderr]     Checking gfx v0.14.1
[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]     Checking gfx_device_gl v0.13.1
[INFO] [stderr]     Checking pistoncore-glutin_window v0.35.1
[INFO] [stderr]     Checking pistoncore-glutin_window v0.34.1
[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: `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: `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: 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 1m 01s
[INFO] running `Command { std: "docker" "inspect" "8daa985c86619f727de3f18639ea29f2fbe820fd3e7a6ca809d897513432e1e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8daa985c86619f727de3f18639ea29f2fbe820fd3e7a6ca809d897513432e1e4", kill_on_drop: false }`
[INFO] [stdout] 8daa985c86619f727de3f18639ea29f2fbe820fd3e7a6ca809d897513432e1e4