[INFO] fetching crate monte_carlo 0.1.1...
[INFO] testing monte_carlo-0.1.1 against 1.95.0-beta.3 for beta-1.95-3
[INFO] extracting crate monte_carlo 0.1.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate monte_carlo 0.1.1
[INFO] finished tweaking crates.io crate monte_carlo 0.1.1
[INFO] tweaked toml for crates.io crate monte_carlo 0.1.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate monte_carlo 0.1.1 on toolchain 1.95.0-beta.3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0-beta.3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0-beta.3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] [stderr]       Adding ego-tree v0.6.3 (available: v0.11.0)
[INFO] [stderr]       Adding ordered-float v4.6.0 (available: v5.1.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0-beta.3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0-beta.3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3b7a65b552c4f73e7d99772282c46566319c63c44f3e762719280ae664cffc3
[INFO] running `Command { std: "docker" "start" "-a" "e3b7a65b552c4f73e7d99772282c46566319c63c44f3e762719280ae664cffc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3b7a65b552c4f73e7d99772282c46566319c63c44f3e762719280ae664cffc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3b7a65b552c4f73e7d99772282c46566319c63c44f3e762719280ae664cffc3", kill_on_drop: false }`
[INFO] [stdout] e3b7a65b552c4f73e7d99772282c46566319c63c44f3e762719280ae664cffc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0-beta.3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa0dd471be7f8e73e38f98a34ed6974d74819c090a50f32a106b047cfe94df9f
[INFO] running `Command { std: "docker" "start" "-a" "aa0dd471be7f8e73e38f98a34ed6974d74819c090a50f32a106b047cfe94df9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling ordered-float v4.6.0
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling ego-tree v0.6.3
[INFO] [stderr]    Compiling monte_carlo v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `borrow::Borrow`
[INFO] [stdout]  --> src/lib.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{borrow::Borrow, f32::consts::SQRT_2, fmt::Debug, ops::ControlFlow};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `NodeRef`
[INFO] [stdout]  --> src/lib.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 | use ego_tree::{NodeId, NodeRef, Tree};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0716]: temporary value dropped while borrowed
[INFO] [stdout]    --> src/lib.rs:229:34
[INFO] [stdout]     |
[INFO] [stdout] 227 | // ...                   dbg!(
[INFO] [stdout] 228 | || ...                       x.value().score / x.value().playouts as f32,
[INFO] [stdout] 229 | || ...                       &x.id(),
[INFO] [stdout]     | ||                            ^^^^^^ creates a temporary value which is freed while still in use
[INFO] [stdout] 230 | || ...                       x.value().playouts,
[INFO] [stdout] 231 | || ...                   )
[INFO] [stdout]     | ||_______________________- temporary value is freed at the end of this statement
[INFO] [stdout] 232 | |  ...                   .0,
[INFO] [stdout]     | |_________________________- borrow later used here
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using a `let` binding to create a longer lived value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `monte_carlo` (lib) due to 1 previous error; 2 warnings emitted
[INFO] [stdout] For more information about this error, try `rustc --explain E0716`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "aa0dd471be7f8e73e38f98a34ed6974d74819c090a50f32a106b047cfe94df9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa0dd471be7f8e73e38f98a34ed6974d74819c090a50f32a106b047cfe94df9f", kill_on_drop: false }`
[INFO] [stdout] aa0dd471be7f8e73e38f98a34ed6974d74819c090a50f32a106b047cfe94df9f