[INFO] cloning repository https://github.com/dweatherstone/water_sort_solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dweatherstone/water_sort_solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdweatherstone%2Fwater_sort_solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdweatherstone%2Fwater_sort_solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8d4ebfff258c61dc9834beea88cf8af6bc561faa
[INFO] building dweatherstone/water_sort_solver 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%2Fdweatherstone%2Fwater_sort_solver" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dweatherstone/water_sort_solver 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/dweatherstone/water_sort_solver
[INFO] finished tweaking git repo https://github.com/dweatherstone/water_sort_solver
[INFO] tweaked toml for git repo https://github.com/dweatherstone/water_sort_solver written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dweatherstone/water_sort_solver 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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] e1c044d3e00e01e758912b3a211fea772232bab461fafa6e81a199d58de2d9dd
[INFO] running `Command { std: "docker" "start" "-a" "e1c044d3e00e01e758912b3a211fea772232bab461fafa6e81a199d58de2d9dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1c044d3e00e01e758912b3a211fea772232bab461fafa6e81a199d58de2d9dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1c044d3e00e01e758912b3a211fea772232bab461fafa6e81a199d58de2d9dd", kill_on_drop: false }`
[INFO] [stdout] e1c044d3e00e01e758912b3a211fea772232bab461fafa6e81a199d58de2d9dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] d6b7b2a15f5fbb6f0a6e1dc0ac4392a4d670f365c7a3fa08672776667e5e2ff8
[INFO] running `Command { std: "docker" "start" "-a" "d6b7b2a15f5fbb6f0a6e1dc0ac4392a4d670f365c7a3fa08672776667e5e2ff8", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling water_sort_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `states`, `current_state`, and `current_block_count` are never read
[INFO] [stdout]   --> src/solver.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct Solver {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 9  |     states: Vec<Vec<Game>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 10 |     current_state: Game,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 11 |     current_block_count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_possible_moves`, `does_move_reduce_block_count`, and `peek_move` are never used
[INFO] [stdout]   --> src/solver.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Solver {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn get_possible_moves(&self) -> Vec<Move> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |     fn does_move_reduce_block_count(&self, possible_move: &Move) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     fn peek_move(&self, possible_move: &Move) -> Game {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.69s
[INFO] running `Command { std: "docker" "inspect" "d6b7b2a15f5fbb6f0a6e1dc0ac4392a4d670f365c7a3fa08672776667e5e2ff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6b7b2a15f5fbb6f0a6e1dc0ac4392a4d670f365c7a3fa08672776667e5e2ff8", kill_on_drop: false }`
[INFO] [stdout] d6b7b2a15f5fbb6f0a6e1dc0ac4392a4d670f365c7a3fa08672776667e5e2ff8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 33639e4b33f988d2efb772644e96cb6f8fa9448eeb892739812a409f12cac78d
[INFO] running `Command { std: "docker" "start" "-a" "33639e4b33f988d2efb772644e96cb6f8fa9448eeb892739812a409f12cac78d", kill_on_drop: false }`
[INFO] [stderr]    Compiling water_sort_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "33639e4b33f988d2efb772644e96cb6f8fa9448eeb892739812a409f12cac78d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33639e4b33f988d2efb772644e96cb6f8fa9448eeb892739812a409f12cac78d", kill_on_drop: false }`
[INFO] [stdout] 33639e4b33f988d2efb772644e96cb6f8fa9448eeb892739812a409f12cac78d