[INFO] cloning repository https://github.com/Flickpink/mre
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Flickpink/mre" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlickpink%2Fmre", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlickpink%2Fmre'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c6cb1a7c485b8d3b6593f592061b0773035984d
[INFO] checking Flickpink/mre against try#a3dffdb3a32d0dedc198f9de7d43173f3eb6727b for pr-136303
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlickpink%2Fmre" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Flickpink/mre on toolchain a3dffdb3a32d0dedc198f9de7d43173f3eb6727b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3dffdb3a32d0dedc198f9de7d43173f3eb6727b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Flickpink/mre
[INFO] finished tweaking git repo https://github.com/Flickpink/mre
[INFO] tweaked toml for git repo https://github.com/Flickpink/mre written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Flickpink/mre 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" "+a3dffdb3a32d0dedc198f9de7d43173f3eb6727b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+a3dffdb3a32d0dedc198f9de7d43173f3eb6727b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42e50ba2a3346e0c70e165ccf45c28818efbd6857f3bcacc745added3c5aa717
[INFO] running `Command { std: "docker" "start" "-a" "42e50ba2a3346e0c70e165ccf45c28818efbd6857f3bcacc745added3c5aa717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42e50ba2a3346e0c70e165ccf45c28818efbd6857f3bcacc745added3c5aa717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42e50ba2a3346e0c70e165ccf45c28818efbd6857f3bcacc745added3c5aa717", kill_on_drop: false }`
[INFO] [stdout] 42e50ba2a3346e0c70e165ccf45c28818efbd6857f3bcacc745added3c5aa717
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+a3dffdb3a32d0dedc198f9de7d43173f3eb6727b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1155f28dd99ae57f84d304319072db29a0f49776b5659ad48bb735c2ce1cff6d
[INFO] running `Command { std: "docker" "start" "-a" "1155f28dd99ae57f84d304319072db29a0f49776b5659ad48bb735c2ce1cff6d", kill_on_drop: false }`
[INFO] [stderr]     Checking MRE v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]  --> src/mcts/algorithm.rs:7:35
[INFO] [stdout]   |
[INFO] [stdout] 7 |         let available_moves = self[node].game_state.available_moves().into_iter();
[INFO] [stdout]   |                                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `child_from_with_gamestate` found for mutable reference `&mut mcts::Arena<GameState>` in the current scope
[INFO] [stdout]   --> src/mcts/algorithm.rs:11:18
[INFO] [stdout]    |
[INFO] [stdout] 11 |             self.child_from_with_gamestate(node, gs)
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^ method not found in `&mut Arena<GameState>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |             self[node].score = self[node].game_state.terminate();
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:18:36
[INFO] [stdout]    |
[INFO] [stdout] 18 |             self[node].score = self[node].game_state.terminate();
[INFO] [stdout]    |                                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |             self[node].visits += 1;
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:24:26
[INFO] [stdout]    |
[INFO] [stdout] 24 |             assert!(&self[node].is_leaf());
[INFO] [stdout]    |                          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:26:27
[INFO] [stdout]    |
[INFO] [stdout] 26 |             let scr = self[node].score;
[INFO] [stdout]    |                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:30:27
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 match self[node].parent {
[INFO] [stdout]    |                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:32:29
[INFO] [stdout]    |
[INFO] [stdout] 32 |                         self[parent].score += scr;
[INFO] [stdout]    |                             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:33:29
[INFO] [stdout]    |
[INFO] [stdout] 33 |                         self[parent].visits += 1;
[INFO] [stdout]    |                             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:34:36
[INFO] [stdout]    |
[INFO] [stdout] 34 |                         node = self[parent].id;
[INFO] [stdout]    |                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:49:24
[INFO] [stdout]    |
[INFO] [stdout] 49 |             while !self[current].is_leaf() {
[INFO] [stdout]    |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:50:31
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 current = self[current].children.iter()
[INFO] [stdout]    |                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ucb1_of` found for mutable reference `&mut mcts::Arena<GameState>` in the current scope
[INFO] [stdout]   --> src/mcts/algorithm.rs:51:45
[INFO] [stdout]    |
[INFO] [stdout] 51 |                     .max_by_key(|child|self.ucb1_of(**child)).unwrap().to_owned();
[INFO] [stdout]    |                                             ^^^^^^^ method not found in `&mut Arena<GameState>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:54:23
[INFO] [stdout]    |
[INFO] [stdout] 54 |             match self[current].visits {
[INFO] [stdout]    |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gs`
[INFO] [stdout]   --> src/mcts.rs:43:20
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn new_with_gs(gs: GameState) -> Node<GameState> {
[INFO] [stdout]    |                    ^^ help: if this is intentional, prefix it with an underscore: `_gs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0608.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `MRE` (lib) due to 15 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]  --> src/mcts/algorithm.rs:7:35
[INFO] [stdout]   |
[INFO] [stdout] 7 |         let available_moves = self[node].game_state.available_moves().into_iter();
[INFO] [stdout]   |                                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `child_from_with_gamestate` found for mutable reference `&mut mcts::Arena<GameState>` in the current scope
[INFO] [stdout]   --> src/mcts/algorithm.rs:11:18
[INFO] [stdout]    |
[INFO] [stdout] 11 |             self.child_from_with_gamestate(node, gs)
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^ method not found in `&mut Arena<GameState>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |             self[node].score = self[node].game_state.terminate();
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:18:36
[INFO] [stdout]    |
[INFO] [stdout] 18 |             self[node].score = self[node].game_state.terminate();
[INFO] [stdout]    |                                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |             self[node].visits += 1;
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:24:26
[INFO] [stdout]    |
[INFO] [stdout] 24 |             assert!(&self[node].is_leaf());
[INFO] [stdout]    |                          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:26:27
[INFO] [stdout]    |
[INFO] [stdout] 26 |             let scr = self[node].score;
[INFO] [stdout]    |                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:30:27
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 match self[node].parent {
[INFO] [stdout]    |                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:32:29
[INFO] [stdout]    |
[INFO] [stdout] 32 |                         self[parent].score += scr;
[INFO] [stdout]    |                             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:33:29
[INFO] [stdout]    |
[INFO] [stdout] 33 |                         self[parent].visits += 1;
[INFO] [stdout]    |                             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:34:36
[INFO] [stdout]    |
[INFO] [stdout] 34 |                         node = self[parent].id;
[INFO] [stdout]    |                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:49:24
[INFO] [stdout]    |
[INFO] [stdout] 49 |             while !self[current].is_leaf() {
[INFO] [stdout]    |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:50:31
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 current = self[current].children.iter()
[INFO] [stdout]    |                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `ucb1_of` found for mutable reference `&mut mcts::Arena<GameState>` in the current scope
[INFO] [stdout]   --> src/mcts/algorithm.rs:51:45
[INFO] [stdout]    |
[INFO] [stdout] 51 |                     .max_by_key(|child|self.ucb1_of(**child)).unwrap().to_owned();
[INFO] [stdout]    |                                             ^^^^^^^ method not found in `&mut Arena<GameState>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0608]: cannot index into a value of type `&mut mcts::Arena<GameState>`
[INFO] [stdout]   --> src/mcts/algorithm.rs:54:23
[INFO] [stdout]    |
[INFO] [stdout] 54 |             match self[current].visits {
[INFO] [stdout]    |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `gs`
[INFO] [stdout]   --> src/mcts.rs:43:20
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn new_with_gs(gs: GameState) -> Node<GameState> {
[INFO] [stdout]    |                    ^^ help: if this is intentional, prefix it with an underscore: `_gs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0608.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `MRE` (lib test) due to 15 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "1155f28dd99ae57f84d304319072db29a0f49776b5659ad48bb735c2ce1cff6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1155f28dd99ae57f84d304319072db29a0f49776b5659ad48bb735c2ce1cff6d", kill_on_drop: false }`
[INFO] [stdout] 1155f28dd99ae57f84d304319072db29a0f49776b5659ad48bb735c2ce1cff6d
