[INFO] fetching crate gorrosion 0.1.2...
[INFO] checking gorrosion-0.1.2 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate gorrosion 0.1.2 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate gorrosion 0.1.2 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gorrosion 0.1.2
[INFO] finished tweaking crates.io crate gorrosion 0.1.2
[INFO] tweaked toml for crates.io crate gorrosion 0.1.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 635736e4f93f7924fe95b41cb85d9215f0fc569acf16dc33ea2fd3d4040a5852
[INFO] running `Command { std: "docker" "start" "-a" "635736e4f93f7924fe95b41cb85d9215f0fc569acf16dc33ea2fd3d4040a5852", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "635736e4f93f7924fe95b41cb85d9215f0fc569acf16dc33ea2fd3d4040a5852", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "635736e4f93f7924fe95b41cb85d9215f0fc569acf16dc33ea2fd3d4040a5852", kill_on_drop: false }`
[INFO] [stdout] 635736e4f93f7924fe95b41cb85d9215f0fc569acf16dc33ea2fd3d4040a5852
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c7ae40c1678b8dc9633e8603861088c64e09948306f4be1587c37f22912d387
[INFO] running `Command { std: "docker" "start" "-a" "5c7ae40c1678b8dc9633e8603861088c64e09948306f4be1587c37f22912d387", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking gorrosion v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `PlayerState` is never constructed
[INFO] [stdout]   --> src/core/game.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct PlayerState<'board, T: 'board + Board> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `place_stone`, `survivors`, `kill`, and `kill_dead` are never used
[INFO] [stdout]   --> src/core/game.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | / impl<'board, T> PlayerState<'board, T>
[INFO] [stdout] 35 | | where
[INFO] [stdout] 36 | |     T: Board,
[INFO] [stdout]    | |_____________- methods in this implementation
[INFO] [stdout] 37 |   {
[INFO] [stdout] 38 |       fn place_stone(&mut self, i: <T::I as Indexer>::Index) {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |       fn survivors(&self, free: &BoolVec<T::I>) -> BoolVec<T::I> {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |       fn kill(&mut self, zombies: &BoolVec<T::I>) {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |       fn kill_dead(&mut self, liberties: &BoolVec<T::I>) {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Color` is never used
[INFO] [stdout]   --> src/core/game.rs:74:6
[INFO] [stdout]    |
[INFO] [stdout] 74 | enum Color {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `other` is never used
[INFO] [stdout]   --> src/core/game.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 79 | impl Color {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 80 |     fn other(&self) -> Color {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GameState` is never constructed
[INFO] [stdout]   --> src/core/game.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | struct GameState<'board, T: 'board + Board> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `free`, `kill_dead`, `player_state`, and `place_stone` are never used
[INFO] [stdout]    --> src/core/game.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 111 | / impl<'board, T> GameState<'board, T>
[INFO] [stdout] 112 | | where
[INFO] [stdout] 113 | |     T: Board,
[INFO] [stdout]     | |_____________- methods in this implementation
[INFO] [stdout] 114 |   {
[INFO] [stdout] 115 |       fn free(&self) -> BoolVec<T::I> {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 |       fn kill_dead(&mut self, color: Color) {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |       fn player_state(
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 |       fn place_stone(&mut self, i: <T::I as Indexer>::Index, color: Color) {
[INFO] [stdout]     |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Action` is never used
[INFO] [stdout]    --> src/core/game.rs:165:6
[INFO] [stdout]     |
[INFO] [stdout] 165 | enum Action<Index: Copy> {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Move` is never constructed
[INFO] [stdout]    --> src/core/game.rs:172:8
[INFO] [stdout]     |
[INFO] [stdout] 172 | struct Move<T: Board> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LocalRules` is never constructed
[INFO] [stdout]    --> src/core/game.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 177 | struct LocalRules {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rules` is never constructed
[INFO] [stdout]    --> src/core/game.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 | struct Rules {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GameNode` is never constructed
[INFO] [stdout]    --> src/core/game.rs:190:8
[INFO] [stdout]     |
[INFO] [stdout] 190 | struct GameNode<'a, 'board: 'a, T: 'board + Board> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Rules` is never used
[INFO] [stdout]  --> src/core/rules.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait Rules<T: Board> {
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PlayerState` is never constructed
[INFO] [stdout]   --> src/core/game.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct PlayerState<'board, T: 'board + Board> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `place_stone`, `survivors`, `kill`, and `kill_dead` are never used
[INFO] [stdout]   --> src/core/game.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | / impl<'board, T> PlayerState<'board, T>
[INFO] [stdout] 35 | | where
[INFO] [stdout] 36 | |     T: Board,
[INFO] [stdout]    | |_____________- methods in this implementation
[INFO] [stdout] 37 |   {
[INFO] [stdout] 38 |       fn place_stone(&mut self, i: <T::I as Indexer>::Index) {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |       fn survivors(&self, free: &BoolVec<T::I>) -> BoolVec<T::I> {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |       fn kill(&mut self, zombies: &BoolVec<T::I>) {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |       fn kill_dead(&mut self, liberties: &BoolVec<T::I>) {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Color` is never used
[INFO] [stdout]   --> src/core/game.rs:74:6
[INFO] [stdout]    |
[INFO] [stdout] 74 | enum Color {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `other` is never used
[INFO] [stdout]   --> src/core/game.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 79 | impl Color {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 80 |     fn other(&self) -> Color {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GameState` is never constructed
[INFO] [stdout]   --> src/core/game.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | struct GameState<'board, T: 'board + Board> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `free`, `kill_dead`, `player_state`, and `place_stone` are never used
[INFO] [stdout]    --> src/core/game.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 111 | / impl<'board, T> GameState<'board, T>
[INFO] [stdout] 112 | | where
[INFO] [stdout] 113 | |     T: Board,
[INFO] [stdout]     | |_____________- methods in this implementation
[INFO] [stdout] 114 |   {
[INFO] [stdout] 115 |       fn free(&self) -> BoolVec<T::I> {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 |       fn kill_dead(&mut self, color: Color) {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |       fn player_state(
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 |       fn place_stone(&mut self, i: <T::I as Indexer>::Index, color: Color) {
[INFO] [stdout]     |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Action` is never used
[INFO] [stdout]    --> src/core/game.rs:165:6
[INFO] [stdout]     |
[INFO] [stdout] 165 | enum Action<Index: Copy> {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Move` is never constructed
[INFO] [stdout]    --> src/core/game.rs:172:8
[INFO] [stdout]     |
[INFO] [stdout] 172 | struct Move<T: Board> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LocalRules` is never constructed
[INFO] [stdout]    --> src/core/game.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 177 | struct LocalRules {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rules` is never constructed
[INFO] [stdout]    --> src/core/game.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 | struct Rules {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GameNode` is never constructed
[INFO] [stdout]    --> src/core/game.rs:190:8
[INFO] [stdout]     |
[INFO] [stdout] 190 | struct GameNode<'a, 'board: 'a, T: 'board + Board> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Rules` is never used
[INFO] [stdout]  --> src/core/rules.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait Rules<T: Board> {
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "5c7ae40c1678b8dc9633e8603861088c64e09948306f4be1587c37f22912d387", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c7ae40c1678b8dc9633e8603861088c64e09948306f4be1587c37f22912d387", kill_on_drop: false }`
[INFO] [stdout] 5c7ae40c1678b8dc9633e8603861088c64e09948306f4be1587c37f22912d387