[INFO] fetching crate myopic-brain 1.8.0...
[INFO] checking myopic-brain-1.8.0 against master#09a371361240e42b0d69438fd1179efcf212e576 for pr-157814-crater-rollup
[INFO] extracting crate myopic-brain 1.8.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate myopic-brain 1.8.0
[INFO] finished tweaking crates.io crate myopic-brain 1.8.0
[INFO] tweaked toml for crates.io crate myopic-brain 1.8.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate myopic-brain 1.8.0 on toolchain 09a371361240e42b0d69438fd1179efcf212e576
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09a371361240e42b0d69438fd1179efcf212e576" "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" "+09a371361240e42b0d69438fd1179efcf212e576" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 50 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.9.0 (available: v0.14.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09a371361240e42b0d69438fd1179efcf212e576" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itertools v0.8.2
[INFO] [stderr]   Downloaded myopic-board v2.2.0
[INFO] [stderr]   Downloaded myopic-core v1.3.0
[INFO] [stderr]   Downloaded enumset v1.1.13
[INFO] [stderr]   Downloaded enumset_derive v0.15.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] ceb900afea88ed60e0f8b9d599b3b1891753002b15858f70f3723ff22f3d58df
[INFO] running `Command { std: "docker" "start" "ceb900afea88ed60e0f8b9d599b3b1891753002b15858f70f3723ff22f3d58df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ceb900afea88ed60e0f8b9d599b3b1891753002b15858f70f3723ff22f3d58df" "/opt/rustwide/cargo-home/bin/cargo" "+09a371361240e42b0d69438fd1179efcf212e576" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ceb900afea88ed60e0f8b9d599b3b1891753002b15858f70f3723ff22f3d58df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ceb900afea88ed60e0f8b9d599b3b1891753002b15858f70f3723ff22f3d58df" "/opt/rustwide/cargo-home/bin/cargo" "+09a371361240e42b0d69438fd1179efcf212e576" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.1
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling anyhow v1.0.102
[INFO] [stderr]     Checking either v1.16.0
[INFO] [stderr]     Checking regex-syntax v0.8.11
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking serde_json v1.0.150
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]    Compiling darling_core v0.21.3
[INFO] [stderr]     Checking regex v1.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling darling_macro v0.21.3
[INFO] [stderr]    Compiling darling v0.21.3
[INFO] [stderr]    Compiling enumset_derive v0.15.0
[INFO] [stderr]     Checking enumset v1.1.13
[INFO] [stderr]     Checking myopic-core v1.3.0
[INFO] [stderr]     Checking myopic-board v2.2.0
[INFO] [stderr]     Checking myopic-brain v1.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/search/negascout.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 126 |     Pv(u8, Move),
[INFO] [stdout]     |     -- ^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 126 -     Pv(u8, Move),
[INFO] [stdout] 126 +     Pv((), Move),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConstantEstimator` is never constructed
[INFO] [stdout]   --> src/search/ordering.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct ConstantEstimator;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/search/negascout.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 126 |     Pv(u8, Move),
[INFO] [stdout]     |     -- ^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 126 -     Pv(u8, Move),
[INFO] [stdout] 126 +     Pv((), Move),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConstantEstimator` is never constructed
[INFO] [stdout]   --> src/search/ordering.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct ConstantEstimator;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.65s
[INFO] running `Command { std: "docker" "inspect" "ceb900afea88ed60e0f8b9d599b3b1891753002b15858f70f3723ff22f3d58df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ceb900afea88ed60e0f8b9d599b3b1891753002b15858f70f3723ff22f3d58df", kill_on_drop: false }`
[INFO] [stdout] ceb900afea88ed60e0f8b9d599b3b1891753002b15858f70f3723ff22f3d58df
