[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 beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fttaomae%2Ftet-rs" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ttaomae/tet-rs 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/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-10/source/Cargo.toml
[INFO] crate git repo https://github.com/ttaomae/tet-rs 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 4b1c448d17cae85e17e7cea660546b75f6bcd92498b59c4e01346815646d3c53
[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" "4b1c448d17cae85e17e7cea660546b75f6bcd92498b59c4e01346815646d3c53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b1c448d17cae85e17e7cea660546b75f6bcd92498b59c4e01346815646d3c53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b1c448d17cae85e17e7cea660546b75f6bcd92498b59c4e01346815646d3c53", kill_on_drop: false }`
[INFO] [stdout] 4b1c448d17cae85e17e7cea660546b75f6bcd92498b59c4e01346815646d3c53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 47a321fc05adef06276a9668fb12303ba0db35319028651766d13043cc246db7
[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" "47a321fc05adef06276a9668fb12303ba0db35319028651766d13043cc246db7", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]     Checking inflate v0.4.3
[INFO] [stderr]    Compiling wayland-scanner v0.12.5
[INFO] [stderr]     Checking tempfile v3.0.4
[INFO] [stderr]    Compiling syn v0.15.4
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking ordered-float v0.5.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking rusttype v0.4.3
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking gfx_core v0.8.2
[INFO] [stderr]     Checking wayland-sys v0.12.5
[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]    Compiling glutin v0.14.0
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]     Checking wayland-kbd v0.13.1
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]     Checking gfx v0.17.1
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking wayland-window v0.13.3
[INFO] [stderr]     Checking winit v0.12.0
[INFO] [stderr]     Checking gfx_device_gl v0.15.3
[INFO] [stderr]     Checking piston-gfx_texture v0.32.0
[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)]` 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: associated function is never used: `get_score`
[INFO] [stdout]    --> src/engine/single.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn get_score(&self) -> u32 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[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)]` 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: variant is never constructed: `O`
[INFO] [stdout]     --> src/engine/base.rs:1015:9
[INFO] [stdout]      |
[INFO] [stdout] 1015 |         O,
[INFO] [stdout]      |         ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Z`
[INFO] [stdout]     --> src/engine/base.rs:1018:9
[INFO] [stdout]      |
[INFO] [stdout] 1018 |         Z,
[INFO] [stdout]      |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `J`
[INFO] [stdout]     --> src/engine/base.rs:1019:9
[INFO] [stdout]      |
[INFO] [stdout] 1019 |         J,
[INFO] [stdout]      |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `L`
[INFO] [stdout]     --> src/engine/base.rs:1020:9
[INFO] [stdout]      |
[INFO] [stdout] 1020 |         L,
[INFO] [stdout]      |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_score`
[INFO] [stdout]    --> src/engine/single.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn get_score(&self) -> u32 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.50s
[INFO] running `Command { std: "docker" "inspect" "47a321fc05adef06276a9668fb12303ba0db35319028651766d13043cc246db7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47a321fc05adef06276a9668fb12303ba0db35319028651766d13043cc246db7", kill_on_drop: false }`
[INFO] [stdout] 47a321fc05adef06276a9668fb12303ba0db35319028651766d13043cc246db7