[INFO] fetching crate scirs2-autograd 0.4.4...
[INFO] checking scirs2-autograd-0.4.4 against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] extracting crate scirs2-autograd 0.4.4 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate scirs2-autograd 0.4.4
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate scirs2-autograd 0.4.4
[INFO] tweaked toml for crates.io crate scirs2-autograd 0.4.4 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate scirs2-autograd 0.4.4 on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate scirs2-autograd 0.4.4 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 996857c38790dd28ada32fa11ab61b9255b301d9b2c55e7e9122a863fb454d29
[INFO] running `Command { std: "docker" "start" "-a" "996857c38790dd28ada32fa11ab61b9255b301d9b2c55e7e9122a863fb454d29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "996857c38790dd28ada32fa11ab61b9255b301d9b2c55e7e9122a863fb454d29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "996857c38790dd28ada32fa11ab61b9255b301d9b2c55e7e9122a863fb454d29", kill_on_drop: false }`
[INFO] [stdout] 996857c38790dd28ada32fa11ab61b9255b301d9b2c55e7e9122a863fb454d29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 622d8768c09ab72ed71500e927af25f9b8df72733b12cd31824edd5d4ac47f9f
[INFO] running `Command { std: "docker" "start" "-a" "622d8768c09ab72ed71500e927af25f9b8df72733b12cd31824edd5d4ac47f9f", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.10.1
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling zerocopy-derive v0.8.48
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking cpufeatures v0.3.0
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking serde_json v1.0.149
[INFO] [stderr]     Checking crossbeam-queue v0.3.12
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling scirs2-core v0.4.4
[INFO] [stderr]    Compiling alloca v0.4.0
[INFO] [stderr]     Checking num-lazy v0.4.1
[INFO] [stderr]     Checking chacha20 v0.10.0
[INFO] [stderr]     Checking regex-syntax v0.8.10
[INFO] [stderr]     Checking winnow v1.0.2
[INFO] [stderr]     Checking rand_core v0.9.5
[INFO] [stderr]     Checking uuid v1.23.1
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking clap_builder v4.6.0
[INFO] [stderr]     Checking rand v0.10.1
[INFO] [stderr]     Checking rayon v1.12.0
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]     Checking serde_spanned v1.1.1
[INFO] [stderr]     Checking toml_parser v1.1.2+spec-1.1.0
[INFO] [stderr]     Checking toml_datetime v1.1.1+spec-1.1.0
[INFO] [stderr]     Checking toml_writer v1.1.1+spec-1.1.0
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking rand_distr v0.6.0
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking page_size v0.6.0
[INFO] [stderr]     Checking rustc-hash v2.1.2
[INFO] [stderr]     Checking lambert_w v2.0.3
[INFO] [stderr]     Checking chrono v0.4.44
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking toml v1.1.2+spec-1.1.0
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]     Checking zerocopy v0.8.48
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking criterion-plot v0.8.2
[INFO] [stderr]     Checking clap v4.6.1
[INFO] [stderr]     Checking ndarray v0.17.2
[INFO] [stderr]     Checking regex v1.12.3
[INFO] [stderr]    Compiling numeric_literals v0.2.0
[INFO] [stderr]     Checking ellip v1.1.0
[INFO] [stderr]     Checking special v0.13.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking half v2.7.1
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand_chacha v0.10.0
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking rand v0.9.4
[INFO] [stderr]     Checking criterion v0.8.2
[INFO] [stderr]     Checking rand_distr v0.5.1
[INFO] [stderr]     Checking ndarray-rand v0.16.0
[INFO] [stderr]     Checking scirs2-autograd v0.4.4 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `OpOutput` is never constructed
[INFO] [stdout]    --> src/op.rs:290:12
[INFO] [stdout]     |
[INFO] [stdout] 290 | pub struct OpOutput<F: Float> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `OpOutput` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `GraphClearGuard` is never constructed
[INFO] [stdout]    --> src/optimizers/training.rs:228:12
[INFO] [stdout]     |
[INFO] [stdout] 228 | pub struct GraphClearGuard<'a, F: Float> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scirs2-autograd` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `OpOutput` is never constructed
[INFO] [stdout]    --> src/op.rs:290:12
[INFO] [stdout]     |
[INFO] [stdout] 290 | pub struct OpOutput<F: Float> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `OpOutput` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `GraphClearGuard` is never constructed
[INFO] [stdout]    --> src/optimizers/training.rs:228:12
[INFO] [stdout]     |
[INFO] [stdout] 228 | pub struct GraphClearGuard<'a, F: Float> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scirs2-autograd` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "622d8768c09ab72ed71500e927af25f9b8df72733b12cd31824edd5d4ac47f9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "622d8768c09ab72ed71500e927af25f9b8df72733b12cd31824edd5d4ac47f9f", kill_on_drop: false }`
[INFO] [stdout] 622d8768c09ab72ed71500e927af25f9b8df72733b12cd31824edd5d4ac47f9f
