[INFO] cloning repository https://github.com/idanai/tetris-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/idanai/tetris-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fidanai%2Ftetris-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fidanai%2Ftetris-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 707c7bc37c389178d35e8f70b2e5d5a9c62cc444
[INFO] building idanai/tetris-rs against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fidanai%2Ftetris-rs" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/idanai/tetris-rs on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/idanai/tetris-rs
[INFO] finished tweaking git repo https://github.com/idanai/tetris-rs
[INFO] tweaked toml for git repo https://github.com/idanai/tetris-rs written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/idanai/tetris-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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0cecd4afed52665561200d20063979297b3ecaffd56371292a4dd40388a68dd7
[INFO] running `Command { std: "docker" "start" "-a" "0cecd4afed52665561200d20063979297b3ecaffd56371292a4dd40388a68dd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cecd4afed52665561200d20063979297b3ecaffd56371292a4dd40388a68dd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cecd4afed52665561200d20063979297b3ecaffd56371292a4dd40388a68dd7", kill_on_drop: false }`
[INFO] [stdout] 0cecd4afed52665561200d20063979297b3ecaffd56371292a4dd40388a68dd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59ba8a642aa1d27a6fb4bc173eb094653c5bdb68aab37bb60f2e5696e03b23e7
[INFO] running `Command { std: "docker" "start" "-a" "59ba8a642aa1d27a6fb4bc173eb094653c5bdb68aab37bb60f2e5696e03b23e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling termion v2.0.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling tetris v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `T_SPIN_SCORE` is never used
[INFO] [stdout]   --> src/tetris.rs:23:7
[INFO] [stdout]    |
[INFO] [stdout] 23 | const T_SPIN_SCORE: u32 = 400;
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `check_t_spin` is never used
[INFO] [stdout]    --> src/tetris.rs:291:5
[INFO] [stdout]     |
[INFO] [stdout] 240 | impl<R: Read, W: Write> Tetris<R, W> {
[INFO] [stdout]     | ------------------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 291 |     fn check_t_spin(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `serialize` is never used
[INFO] [stdout]    --> src/tetris.rs:639:9
[INFO] [stdout]     |
[INFO] [stdout] 636 | impl<R, W> Tetris<R, W> {
[INFO] [stdout]     | ----------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 639 |     pub fn serialize(&self) -> impl Iterator<Item = bool> + '_ {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `score` is never used
[INFO] [stdout]  --> src/tetris/game.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Game {
[INFO] [stdout]   |           ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 4 |     fn score(&self) -> f32;
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_ghost` and `is_empty` are never used
[INFO] [stdout]   --> src/tetris/cell.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Cell {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn is_ghost(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Up` is never constructed
[INFO] [stdout]  --> src/tetris/direction.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Direction {
[INFO] [stdout]   |          --------- variant in this enum
[INFO] [stdout] 5 |     Up,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Direction` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ALL` is never used
[INFO] [stdout]   --> src/tetris/tetromino/data.rs:55:11
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub const ALL: u8 = 0x0F;
[INFO] [stdout]    |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `at` is never used
[INFO] [stdout]    --> src/tetris/tetromino/data.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 116 | impl MovementFlags {
[INFO] [stdout]     | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 138 |     pub fn at(&self, index: usize) -> Flags {
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.69s
[INFO] running `Command { std: "docker" "inspect" "59ba8a642aa1d27a6fb4bc173eb094653c5bdb68aab37bb60f2e5696e03b23e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59ba8a642aa1d27a6fb4bc173eb094653c5bdb68aab37bb60f2e5696e03b23e7", kill_on_drop: false }`
[INFO] [stdout] 59ba8a642aa1d27a6fb4bc173eb094653c5bdb68aab37bb60f2e5696e03b23e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b159457fc568c4090dbf7e4adab3a3c8d00ded52750536511f835155a9309f8a
[INFO] running `Command { std: "docker" "start" "-a" "b159457fc568c4090dbf7e4adab3a3c8d00ded52750536511f835155a9309f8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling tetris v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `T_SPIN_SCORE` is never used
[INFO] [stdout]   --> src/tetris.rs:23:7
[INFO] [stdout]    |
[INFO] [stdout] 23 | const T_SPIN_SCORE: u32 = 400;
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `check_t_spin` is never used
[INFO] [stdout]    --> src/tetris.rs:291:5
[INFO] [stdout]     |
[INFO] [stdout] 240 | impl<R: Read, W: Write> Tetris<R, W> {
[INFO] [stdout]     | ------------------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 291 |     fn check_t_spin(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `serialize` is never used
[INFO] [stdout]    --> src/tetris.rs:639:9
[INFO] [stdout]     |
[INFO] [stdout] 636 | impl<R, W> Tetris<R, W> {
[INFO] [stdout]     | ----------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 639 |     pub fn serialize(&self) -> impl Iterator<Item = bool> + '_ {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `score` is never used
[INFO] [stdout]  --> src/tetris/game.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Game {
[INFO] [stdout]   |           ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 4 |     fn score(&self) -> f32;
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_ghost` and `is_empty` are never used
[INFO] [stdout]   --> src/tetris/cell.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Cell {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn is_ghost(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Up` is never constructed
[INFO] [stdout]  --> src/tetris/direction.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Direction {
[INFO] [stdout]   |          --------- variant in this enum
[INFO] [stdout] 5 |     Up,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Direction` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ALL` is never used
[INFO] [stdout]   --> src/tetris/tetromino/data.rs:55:11
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub const ALL: u8 = 0x0F;
[INFO] [stdout]    |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `at` is never used
[INFO] [stdout]    --> src/tetris/tetromino/data.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 116 | impl MovementFlags {
[INFO] [stdout]     | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 138 |     pub fn at(&self, index: usize) -> Flags {
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "b159457fc568c4090dbf7e4adab3a3c8d00ded52750536511f835155a9309f8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b159457fc568c4090dbf7e4adab3a3c8d00ded52750536511f835155a9309f8a", kill_on_drop: false }`
[INFO] [stdout] b159457fc568c4090dbf7e4adab3a3c8d00ded52750536511f835155a9309f8a