[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 beta-2021-01-01 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-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wormtql/hex-rust on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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-12/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" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d8a98a816cb4c1767776970bbb8816a8b17e5f461fb07e8b66ac352a68fb2f8
[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" "1d8a98a816cb4c1767776970bbb8816a8b17e5f461fb07e8b66ac352a68fb2f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d8a98a816cb4c1767776970bbb8816a8b17e5f461fb07e8b66ac352a68fb2f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d8a98a816cb4c1767776970bbb8816a8b17e5f461fb07e8b66ac352a68fb2f8", kill_on_drop: false }`
[INFO] [stdout] 1d8a98a816cb4c1767776970bbb8816a8b17e5f461fb07e8b66ac352a68fb2f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a94c5998e07eac05514548c873a4bf3895cae9e80e1ea3ddbbf3d342ec03cf2e
[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" "a94c5998e07eac05514548c873a4bf3895cae9e80e1ea3ddbbf3d342ec03cf2e", 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 9.82s
[INFO] running `Command { std: "docker" "inspect" "a94c5998e07eac05514548c873a4bf3895cae9e80e1ea3ddbbf3d342ec03cf2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a94c5998e07eac05514548c873a4bf3895cae9e80e1ea3ddbbf3d342ec03cf2e", kill_on_drop: false }`
[INFO] [stdout] a94c5998e07eac05514548c873a4bf3895cae9e80e1ea3ddbbf3d342ec03cf2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 44423d83b9d9873847daddf84bd50d54ec6518a9a211c39bed9197e4fd99e92b
[INFO] running `Command { std: "docker" "start" "-a" "44423d83b9d9873847daddf84bd50d54ec6518a9a211c39bed9197e4fd99e92b", 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 1.24s
[INFO] running `Command { std: "docker" "inspect" "44423d83b9d9873847daddf84bd50d54ec6518a9a211c39bed9197e4fd99e92b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44423d83b9d9873847daddf84bd50d54ec6518a9a211c39bed9197e4fd99e92b", kill_on_drop: false }`
[INFO] [stdout] 44423d83b9d9873847daddf84bd50d54ec6518a9a211c39bed9197e4fd99e92b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] faef4fc0539c1299b3a7a50ca014eb3496c2a3c40a8a4e3c5362ed4dce57849e
[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" "faef4fc0539c1299b3a7a50ca014eb3496c2a3c40a8a4e3c5362ed4dce57849e", 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 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hex_rust-d339637138a48a11
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "faef4fc0539c1299b3a7a50ca014eb3496c2a3c40a8a4e3c5362ed4dce57849e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faef4fc0539c1299b3a7a50ca014eb3496c2a3c40a8a4e3c5362ed4dce57849e", kill_on_drop: false }`
[INFO] [stdout] faef4fc0539c1299b3a7a50ca014eb3496c2a3c40a8a4e3c5362ed4dce57849e