[INFO] cloning repository https://github.com/becknik/mill-mcts
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/becknik/mill-mcts" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbecknik%2Fmill-mcts", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbecknik%2Fmill-mcts'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 326170babddd5b51c0265b4f4d52375fd1cc3b09
[INFO] checking becknik/mill-mcts against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbecknik%2Fmill-mcts" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/becknik/mill-mcts
[INFO] finished tweaking git repo https://github.com/becknik/mill-mcts
[INFO] tweaked toml for git repo https://github.com/becknik/mill-mcts written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/becknik/mill-mcts on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/becknik/mill-mcts 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5fe5b97595aa4056db0e7a0b83b5ea3bd3dcbdf4ddc18cc4740fbfbb509d5eb9
[INFO] running `Command { std: "docker" "start" "-a" "5fe5b97595aa4056db0e7a0b83b5ea3bd3dcbdf4ddc18cc4740fbfbb509d5eb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fe5b97595aa4056db0e7a0b83b5ea3bd3dcbdf4ddc18cc4740fbfbb509d5eb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fe5b97595aa4056db0e7a0b83b5ea3bd3dcbdf4ddc18cc4740fbfbb509d5eb9", kill_on_drop: false }`
[INFO] [stdout] 5fe5b97595aa4056db0e7a0b83b5ea3bd3dcbdf4ddc18cc4740fbfbb509d5eb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e48b9b0daec9bd232c462183624d973a4848e9310007f244be5cfc9ddec25bb
[INFO] running `Command { std: "docker" "start" "-a" "0e48b9b0daec9bd232c462183624d973a4848e9310007f244be5cfc9ddec25bb", kill_on_drop: false }`
[INFO] [stderr]     Checking snowflake v1.3.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]    Compiling smartstring v1.0.1
[INFO] [stderr]     Checking id_tree v1.8.0
[INFO] [stderr]     Checking mill-mcts v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]    --> src/mcts.rs:411:26
[INFO] [stdout]     |
[INFO] [stdout] 411 |         let i = unsafe { RNG.generate_range(0..buff.len()) };
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]     = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]    --> src/mcts.rs:411:26
[INFO] [stdout]     |
[INFO] [stdout] 411 |         let i = unsafe { RNG.generate_range(0..buff.len()) };
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]     = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]     = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 1.76s
[INFO] running `Command { std: "docker" "inspect" "0e48b9b0daec9bd232c462183624d973a4848e9310007f244be5cfc9ddec25bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e48b9b0daec9bd232c462183624d973a4848e9310007f244be5cfc9ddec25bb", kill_on_drop: false }`
[INFO] [stdout] 0e48b9b0daec9bd232c462183624d973a4848e9310007f244be5cfc9ddec25bb