[INFO] cloning repository https://github.com/ttschnz/tictactoe_extreme
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ttschnz/tictactoe_extreme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fttschnz%2Ftictactoe_extreme", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fttschnz%2Ftictactoe_extreme'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e15d82a1a4ba7ca2a2f78ea589f3506d3addcacc
[INFO] checking ttschnz/tictactoe_extreme against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fttschnz%2Ftictactoe_extreme" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ttschnz/tictactoe_extreme on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ttschnz/tictactoe_extreme
[INFO] finished tweaking git repo https://github.com/ttschnz/tictactoe_extreme
[INFO] tweaked toml for git repo https://github.com/ttschnz/tictactoe_extreme written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ttschnz/tictactoe_extreme 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redis-async v0.16.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65a047cf26fab17769e3e7e795e3b3a052f27c3567dd1f1acd36dcdaad5b820e
[INFO] running `Command { std: "docker" "start" "-a" "65a047cf26fab17769e3e7e795e3b3a052f27c3567dd1f1acd36dcdaad5b820e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65a047cf26fab17769e3e7e795e3b3a052f27c3567dd1f1acd36dcdaad5b820e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65a047cf26fab17769e3e7e795e3b3a052f27c3567dd1f1acd36dcdaad5b820e", kill_on_drop: false }`
[INFO] [stdout] 65a047cf26fab17769e3e7e795e3b3a052f27c3567dd1f1acd36dcdaad5b820e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9496ba2f829151e09fe19517fe3a9ef12db2defd856b2c99763a386ac876ab3
[INFO] running `Command { std: "docker" "start" "-a" "b9496ba2f829151e09fe19517fe3a9ef12db2defd856b2c99763a386ac876ab3", kill_on_drop: false }`
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[INFO] [stdout] warning: the item `Client` is imported redundantly
[INFO] [stdout]    --> src/data_provider/providers/redis_provider.rs:385:9
[INFO] [stdout]     |
[INFO] [stdout] 382 |     use super::*;
[INFO] [stdout]     |         -------- the item `Client` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 385 |     use redis::Client;
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `env_logger` is imported redundantly
[INFO] [stdout]    --> src/generic/boards/board.rs:225:9
[INFO] [stdout]     |
[INFO] [stdout] 225 |     use env_logger;
[INFO] [stdout]     |         ^^^^^^^^^^ the item `env_logger` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Field` is imported redundantly
[INFO] [stdout]   --> src/generic/boards/matrix_checker.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |     use super::*;
[INFO] [stdout]    |         -------- the item `Field` is already imported here
[INFO] [stdout] 91 |     use crate::Field;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Player` is imported redundantly
[INFO] [stdout]   --> src/generic/boards/sub_board.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     use super::*;
[INFO] [stdout]    |         -------- the item `Player` is already imported here
[INFO] [stdout] 36 |     use crate::Player;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 53.68s
[INFO] running `Command { std: "docker" "inspect" "b9496ba2f829151e09fe19517fe3a9ef12db2defd856b2c99763a386ac876ab3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9496ba2f829151e09fe19517fe3a9ef12db2defd856b2c99763a386ac876ab3", kill_on_drop: false }`
[INFO] [stdout] b9496ba2f829151e09fe19517fe3a9ef12db2defd856b2c99763a386ac876ab3