[INFO] cloning repository https://github.com/ttaomae/tet-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ttaomae/tet-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fttaomae%2Ftet-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fttaomae%2Ftet-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5cd6dceda2969fb24b22bfc9ba270e1d1044319d
[INFO] checking ttaomae/tet-rs against master#43a4909ee98ed4d006d9d773f5d94dc58e34f846 for pr-157576
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fttaomae%2Ftet-rs" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ttaomae/tet-rs
[INFO] finished tweaking git repo https://github.com/ttaomae/tet-rs
[INFO] tweaked toml for git repo https://github.com/ttaomae/tet-rs written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ttaomae/tet-rs on toolchain 43a4909ee98ed4d006d9d773f5d94dc58e34f846
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+43a4909ee98ed4d006d9d773f5d94dc58e34f846" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ttaomae/tet-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+43a4909ee98ed4d006d9d773f5d94dc58e34f846" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v0.4.19
[INFO] [stderr]   Downloaded serde v1.0.79
[INFO] [stderr]   Downloaded serde_derive v1.0.79
[INFO] [stderr]   Downloaded syn v0.15.4
[INFO] [stderr]   Downloaded cc v1.0.25
[INFO] [stderr]   Downloaded tempfile v3.0.4
[INFO] [stderr]   Downloaded log v0.4.5
[INFO] [stderr]   Downloaded stb_truetype v0.2.4
[INFO] [stderr]   Downloaded ordered-float v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] fe7c7a428ab460e4362187ac70b3d4017efb9025ce43976136da6630fe679d01
[INFO] running `Command { std: "docker" "start" "fe7c7a428ab460e4362187ac70b3d4017efb9025ce43976136da6630fe679d01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "fe7c7a428ab460e4362187ac70b3d4017efb9025ce43976136da6630fe679d01" "/opt/rustwide/cargo-home/bin/cargo" "+43a4909ee98ed4d006d9d773f5d94dc58e34f846" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe7c7a428ab460e4362187ac70b3d4017efb9025ce43976136da6630fe679d01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "fe7c7a428ab460e4362187ac70b3d4017efb9025ce43976136da6630fe679d01" "/opt/rustwide/cargo-home/bin/cargo" "+43a4909ee98ed4d006d9d773f5d94dc58e34f846" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.19
[INFO] [stderr]    Compiling khronos_api v2.2.0
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]     Checking byteorder v1.2.6
[INFO] [stderr]     Checking piston-float v0.3.0
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking token_store v0.1.2
[INFO] [stderr]    Compiling serde v1.0.79
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling syn v0.10.8
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking piston-viewport v0.3.0
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]     Checking shader_version v0.3.0
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking inflate v0.4.3
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking ordered-float v0.5.2
[INFO] [stderr]     Checking gif v0.10.0
[INFO] [stderr]     Checking stb_truetype v0.2.4
[INFO] [stderr]     Checking piston-texture v0.6.0
[INFO] [stderr]     Checking vecmath v0.3.1
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling wayland-scanner v0.12.5
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]     Checking num-iter v0.1.37
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking rusttype v0.4.3
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking interpolation v0.1.0
[INFO] [stderr]     Checking read_color v1.0.0
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling syn v0.15.4
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking piston-shaders_graphics2d v0.3.1
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]    Compiling glutin v0.14.0
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]     Checking piston2d-graphics v0.26.0
[INFO] [stderr]    Compiling wayland-client v0.12.5
[INFO] [stderr]    Compiling wayland-protocols v0.12.5
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking tempfile v3.0.4
[INFO] [stderr]     Checking wayland-sys v0.12.5
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking wayland-kbd v0.13.1
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]    Compiling derivative v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking gfx_core v0.8.2
[INFO] [stderr]     Checking gfx v0.17.1
[INFO] [stderr]     Checking gfx_device_gl v0.15.3
[INFO] [stderr]     Checking wayland-window v0.13.3
[INFO] [stderr]     Checking piston-gfx_texture v0.32.0
[INFO] [stderr]     Checking winit v0.12.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.51.0
[INFO] [stderr]     Checking pistoncore-input v0.21.0
[INFO] [stderr]     Checking pistoncore-window v0.32.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.37.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.47.0
[INFO] [stderr]     Checking piston v0.37.0
[INFO] [stderr]     Checking piston_window v0.80.0
[INFO] [stderr]     Checking tet-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `t_spin`
[INFO] [stdout]    --> src/engine/base.rs:188:23
[INFO] [stdout]     |
[INFO] [stdout] 188 |     fn on_lock(&self, t_spin: TSpin) {}
[INFO] [stdout]     |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_t_spin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_rows`
[INFO] [stdout]    --> src/engine/base.rs:189:28
[INFO] [stdout]     |
[INFO] [stdout] 189 |     fn on_soft_drop(&self, n_rows: u8) {}
[INFO] [stdout]     |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_rows`
[INFO] [stdout]    --> src/engine/base.rs:190:28
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn on_hard_drop(&self, n_rows: u8) {}
[INFO] [stdout]     |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_rows`
[INFO] [stdout]    --> src/engine/base.rs:191:29
[INFO] [stdout]     |
[INFO] [stdout] 191 |     fn on_line_clear(&self, n_rows: u8) {}
[INFO] [stdout]     |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_score` is never used
[INFO] [stdout]    --> src/engine/single.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout]  86 | impl SinglePlayerEngine {
[INFO] [stdout]     | ----------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 100 |     fn get_score(&self) -> u32 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t_spin`
[INFO] [stdout]    --> src/engine/base.rs:188:23
[INFO] [stdout]     |
[INFO] [stdout] 188 |     fn on_lock(&self, t_spin: TSpin) {}
[INFO] [stdout]     |                       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_t_spin`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_rows`
[INFO] [stdout]    --> src/engine/base.rs:189:28
[INFO] [stdout]     |
[INFO] [stdout] 189 |     fn on_soft_drop(&self, n_rows: u8) {}
[INFO] [stdout]     |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_rows`
[INFO] [stdout]    --> src/engine/base.rs:190:28
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn on_hard_drop(&self, n_rows: u8) {}
[INFO] [stdout]     |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_rows`
[INFO] [stdout]    --> src/engine/base.rs:191:29
[INFO] [stdout]     |
[INFO] [stdout] 191 |     fn on_line_clear(&self, n_rows: u8) {}
[INFO] [stdout]     |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_rows`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `O`, `Z`, `J`, and `L` are never constructed
[INFO] [stdout]     --> src/engine/base.rs:1015:9
[INFO] [stdout]      |
[INFO] [stdout] 1013 |     enum SingleTetrominoGenerator {
[INFO] [stdout]      |          ------------------------ variants in this enum
[INFO] [stdout] 1014 |         I,
[INFO] [stdout] 1015 |         O,
[INFO] [stdout]      |         ^
[INFO] [stdout] ...
[INFO] [stdout] 1018 |         Z,
[INFO] [stdout]      |         ^
[INFO] [stdout] 1019 |         J,
[INFO] [stdout]      |         ^
[INFO] [stdout] 1020 |         L,
[INFO] [stdout]      |         ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_score` is never used
[INFO] [stdout]    --> src/engine/single.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout]  86 | impl SinglePlayerEngine {
[INFO] [stdout]     | ----------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 100 |     fn get_score(&self) -> u32 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.48s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: glutin v0.14.0, syn v0.10.8, syn v0.14.9, winit v0.12.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "fe7c7a428ab460e4362187ac70b3d4017efb9025ce43976136da6630fe679d01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe7c7a428ab460e4362187ac70b3d4017efb9025ce43976136da6630fe679d01", kill_on_drop: false }`
[INFO] [stdout] fe7c7a428ab460e4362187ac70b3d4017efb9025ce43976136da6630fe679d01
