[INFO] fetching crate flax 0.7.1...
[INFO] checking flax-0.7.1 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate flax 0.7.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate flax 0.7.1 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flax 0.7.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate flax 0.7.1
[INFO] tweaked toml for crates.io crate flax 0.7.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate flax 0.7.1 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e474a81d36dad8161b01700baacb6ef6efe98a92d605b229665fc7e4e07a839
[INFO] running `Command { std: "docker" "start" "-a" "4e474a81d36dad8161b01700baacb6ef6efe98a92d605b229665fc7e4e07a839", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e474a81d36dad8161b01700baacb6ef6efe98a92d605b229665fc7e4e07a839", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e474a81d36dad8161b01700baacb6ef6efe98a92d605b229665fc7e4e07a839", kill_on_drop: false }`
[INFO] [stdout] 4e474a81d36dad8161b01700baacb6ef6efe98a92d605b229665fc7e4e07a839
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 630231a458e6ad517608b79c06d75216d7082689ed7eb64b5960fa7670af7fd4
[INFO] running `Command { std: "docker" "start" "-a" "630231a458e6ad517608b79c06d75216d7082689ed7eb64b5960fa7670af7fd4", kill_on_drop: false }`
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[INFO] [stderr]     Checking flax v0.7.1 (/opt/rustwide/workdir)
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[INFO] [stdout] warning: struct `FormatWith` is never constructed
[INFO] [stdout]    --> src/system/mod.rs:305:8
[INFO] [stdout]     |
[INFO] [stdout] 305 | struct FormatWith<F> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ComponentName` is never constructed
[INFO] [stdout]    --> src/format.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 127 | struct ComponentName {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BatchesWithId` is never constructed
[INFO] [stdout]   --> src/query/borrow.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | struct BatchesWithId<'q, Q: PreparedFetch<'q>, F> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MigrateEntity` is never used
[INFO] [stdout]    --> src/writer.rs:179:25
[INFO] [stdout]     |
[INFO] [stdout] 179 | pub(crate) unsafe trait MigrateEntity {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Position` is never constructed
[INFO] [stdout]   --> benches/common/heavy_compute.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Position(Vec3);
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rotation` is never constructed
[INFO] [stdout]   --> benches/common/heavy_compute.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Rotation(Vec3);
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Velocity` is never constructed
[INFO] [stdout]   --> benches/common/heavy_compute.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct Velocity(Vec3);
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]   --> benches/common/simple_iter.rs:14:29
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Benchmark(World, Query<(Component<Vec3>, Mutable<Vec3>)>);
[INFO] [stdout]    |            ---------        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FormatWith` is never constructed
[INFO] [stdout]    --> src/system/mod.rs:305:8
[INFO] [stdout]     |
[INFO] [stdout] 305 | struct FormatWith<F> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ComponentName` is never constructed
[INFO] [stdout]    --> src/format.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 127 | struct ComponentName {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BatchesWithId` is never constructed
[INFO] [stdout]   --> src/query/borrow.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | struct BatchesWithId<'q, Q: PreparedFetch<'q>, F> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MigrateEntity` is never used
[INFO] [stdout]    --> src/writer.rs:179:25
[INFO] [stdout]     |
[INFO] [stdout] 179 | pub(crate) unsafe trait MigrateEntity {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.90s
[INFO] running `Command { std: "docker" "inspect" "630231a458e6ad517608b79c06d75216d7082689ed7eb64b5960fa7670af7fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "630231a458e6ad517608b79c06d75216d7082689ed7eb64b5960fa7670af7fd4", kill_on_drop: false }`
[INFO] [stdout] 630231a458e6ad517608b79c06d75216d7082689ed7eb64b5960fa7670af7fd4