[INFO] cloning repository https://github.com/wormtql/hex-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wormtql/hex-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwormtql%2Fhex-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwormtql%2Fhex-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 31b9eb3719077425c536d3932120efbe7c374e5f
[INFO] testing wormtql/hex-rust against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwormtql%2Fhex-rust" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wormtql/hex-rust on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wormtql/hex-rust
[INFO] finished tweaking git repo https://github.com/wormtql/hex-rust
[INFO] tweaked toml for git repo https://github.com/wormtql/hex-rust written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/wormtql/hex-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 69c616f9d6d087efd125ee65b1f634c76eb1c35de69e6a3e253bd84b107cb852
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "69c616f9d6d087efd125ee65b1f634c76eb1c35de69e6a3e253bd84b107cb852", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69c616f9d6d087efd125ee65b1f634c76eb1c35de69e6a3e253bd84b107cb852", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69c616f9d6d087efd125ee65b1f634c76eb1c35de69e6a3e253bd84b107cb852", kill_on_drop: false }`
[INFO] [stdout] 69c616f9d6d087efd125ee65b1f634c76eb1c35de69e6a3e253bd84b107cb852
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f550df002bf67b24c3f8cab8ebaedd507bad8f585a5bc246a71a0b4b2ad8ac7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0f550df002bf67b24c3f8cab8ebaedd507bad8f585a5bc246a71a0b4b2ad8ac7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling hex-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Solver`
[INFO] [stdout]  --> src/solver/mcts_solver.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{Solver};
[INFO] [stdout]   |             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Node`
[INFO] [stdout]  --> src/solver/mcts_solver.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Node {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MCTSSolver`
[INFO] [stdout]  --> src/solver/mcts_solver.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct MCTSSolver {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]  --> src/common.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     x: i32,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]  --> src/common.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     y: i32,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.70s
[INFO] running `Command { std: "docker" "inspect" "0f550df002bf67b24c3f8cab8ebaedd507bad8f585a5bc246a71a0b4b2ad8ac7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f550df002bf67b24c3f8cab8ebaedd507bad8f585a5bc246a71a0b4b2ad8ac7", kill_on_drop: false }`
[INFO] [stdout] 0f550df002bf67b24c3f8cab8ebaedd507bad8f585a5bc246a71a0b4b2ad8ac7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e21bda46e02ae401c9b5f83ac43680a87cec7e3494bc656203d986445814e66a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e21bda46e02ae401c9b5f83ac43680a87cec7e3494bc656203d986445814e66a", kill_on_drop: false }`
[INFO] [stderr]    Compiling hex-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Solver`
[INFO] [stdout]  --> src/solver/mcts_solver.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{Solver};
[INFO] [stdout]   |             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Node`
[INFO] [stdout]  --> src/solver/mcts_solver.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Node {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `MCTSSolver`
[INFO] [stdout]  --> src/solver/mcts_solver.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct MCTSSolver {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]  --> src/common.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     x: i32,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]  --> src/common.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     y: i32,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `Command { std: "docker" "inspect" "e21bda46e02ae401c9b5f83ac43680a87cec7e3494bc656203d986445814e66a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e21bda46e02ae401c9b5f83ac43680a87cec7e3494bc656203d986445814e66a", kill_on_drop: false }`
[INFO] [stdout] e21bda46e02ae401c9b5f83ac43680a87cec7e3494bc656203d986445814e66a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5f68a17771341a0bf37d9389dd46e98d6cebba8e14731b3a708b1280d3dc3a99
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5f68a17771341a0bf37d9389dd46e98d6cebba8e14731b3a708b1280d3dc3a99", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Solver`
[INFO] [stderr]  --> src/solver/mcts_solver.rs:1:13
[INFO] [stderr]   |
[INFO] [stderr] 1 | use super::{Solver};
[INFO] [stderr]   |             ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Node`
[INFO] [stderr]  --> src/solver/mcts_solver.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct Node {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `MCTSSolver`
[INFO] [stderr]  --> src/solver/mcts_solver.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct MCTSSolver {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `x`
[INFO] [stderr]  --> src/common.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     x: i32,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `y`
[INFO] [stderr]  --> src/common.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     y: i32,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hex_rust-dfba967053693a55
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test board::test_color ... ok
[INFO] [stdout] test board::test_winner ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5f68a17771341a0bf37d9389dd46e98d6cebba8e14731b3a708b1280d3dc3a99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f68a17771341a0bf37d9389dd46e98d6cebba8e14731b3a708b1280d3dc3a99", kill_on_drop: false }`
[INFO] [stdout] 5f68a17771341a0bf37d9389dd46e98d6cebba8e14731b3a708b1280d3dc3a99