[INFO] fetching crate burn-optim 0.21.0-pre.4...
[INFO] checking burn-optim-0.21.0-pre.4 against try#6757d700f93f6d16c8b39cf79e96b019bd570e7d for pr-155299-1
[INFO] extracting crate burn-optim 0.21.0-pre.4 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate burn-optim 0.21.0-pre.4
[INFO] finished tweaking crates.io crate burn-optim 0.21.0-pre.4
[INFO] tweaked toml for crates.io crate burn-optim 0.21.0-pre.4 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate burn-optim 0.21.0-pre.4 on toolchain 6757d700f93f6d16c8b39cf79e96b019bd570e7d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6757d700f93f6d16c8b39cf79e96b019bd570e7d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate burn-optim 0.21.0-pre.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" "+6757d700f93f6d16c8b39cf79e96b019bd570e7d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+6757d700f93f6d16c8b39cf79e96b019bd570e7d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1de2e9f544ad0723cd8bf67813b91da74f7fab7d0870fbbda58ba19e4e9e08e
[INFO] running `Command { std: "docker" "start" "-a" "f1de2e9f544ad0723cd8bf67813b91da74f7fab7d0870fbbda58ba19e4e9e08e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1de2e9f544ad0723cd8bf67813b91da74f7fab7d0870fbbda58ba19e4e9e08e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1de2e9f544ad0723cd8bf67813b91da74f7fab7d0870fbbda58ba19e4e9e08e", kill_on_drop: false }`
[INFO] [stdout] f1de2e9f544ad0723cd8bf67813b91da74f7fab7d0870fbbda58ba19e4e9e08e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+6757d700f93f6d16c8b39cf79e96b019bd570e7d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa96ef3179597bcaec91c6065c3b24cd0974a0cf3f06542957d9de35b7c7423f
[INFO] running `Command { std: "docker" "start" "-a" "aa96ef3179597bcaec91c6065c3b24cd0974a0cf3f06542957d9de35b7c7423f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling libm v0.2.16
[INFO] [stderr]     Checking cfg-if v1.0.4
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling libc v0.2.185
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]     Checking once_cell v1.21.4
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking memchr v2.8.0
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]     Checking pin-project-lite v0.2.17
[INFO] [stderr]    Compiling unicode-segmentation v1.13.2
[INFO] [stderr]    Compiling equivalent v1.0.2
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]     Checking parking v2.2.1
[INFO] [stderr]     Checking futures-core v0.3.32
[INFO] [stderr]     Checking rand_core v0.10.1
[INFO] [stderr]     Checking cpufeatures v0.3.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling zmij v1.0.21
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling portable-atomic v1.13.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking simd-adler32 v0.3.9
[INFO] [stderr]     Checking adler2 v2.0.1
[INFO] [stderr]    Compiling convert_case v0.10.0
[INFO] [stderr]     Checking regex-syntax v0.8.10
[INFO] [stderr]     Checking chacha20 v0.10.0
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking lock_api v0.4.14
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]     Checking winnow v1.0.2
[INFO] [stderr]     Checking gimli v0.32.3
[INFO] [stderr]     Checking option-ext v0.2.0
[INFO] [stderr]     Checking toml_parser v1.1.2+spec-1.1.0
[INFO] [stderr]     Checking nom v8.0.0
[INFO] [stderr]     Checking dirs-sys v0.5.0
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]    Compiling cubecl-common v0.10.0-pre.4
[INFO] [stderr]     Checking tracing-core v0.1.36
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]     Checking rustc-demangle v0.1.27
[INFO] [stderr]     Checking rand v0.10.1
[INFO] [stderr]     Checking itoa v1.0.18
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking allocator-api2 v0.2.21
[INFO] [stderr]     Checking toml_writer v1.1.1+spec-1.1.0
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]     Checking fastrand v2.4.1
[INFO] [stderr]     Checking foldhash v0.2.0
[INFO] [stderr]     Checking futures-io v0.3.32
[INFO] [stderr]     Checking futures-lite v2.6.1
[INFO] [stderr]     Checking event-listener v5.4.1
[INFO] [stderr]     Checking dirs v6.0.0
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]     Checking oneshot v0.2.1
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]     Checking web-time v1.1.0
[INFO] [stderr]     Checking bytes v1.11.1
[INFO] [stderr]     Checking float4 v0.2.0
[INFO] [stderr]     Checking xxhash-rust v0.8.15
[INFO] [stderr]     Checking embassy-futures v0.1.2
[INFO] [stderr]     Checking log v0.4.29
[INFO] [stderr]    Compiling hashbrown v0.16.1
[INFO] [stderr]    Compiling spin v0.10.0
[INFO] [stderr]     Checking event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling cubecl-runtime v0.10.0-pre.4
[INFO] [stderr]     Checking float-ord v0.3.2
[INFO] [stderr]    Compiling cubecl-macros v0.10.0-pre.4
[INFO] [stderr]     Checking async-channel v2.5.0
[INFO] [stderr]     Checking md5 v0.8.0
[INFO] [stderr]    Compiling inflections v1.1.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling cubecl v0.10.0-pre.4
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]    Compiling pulp v0.22.2
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]    Compiling semver v1.0.28
[INFO] [stderr]     Checking reborrow v0.5.5
[INFO] [stderr]     Checking bitflags v2.11.1
[INFO] [stderr]     Checking serde_spanned v1.1.1
[INFO] [stderr]     Checking toml_datetime v1.1.1+spec-1.1.0
[INFO] [stderr]     Checking serde_bytes v0.11.19
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking raw-cpuid v11.6.0
[INFO] [stderr]     Checking addr2line v0.25.1
[INFO] [stderr]     Checking pulp-wasm-simd-flag v0.1.0
[INFO] [stderr]    Compiling dyn-stack-macros v0.1.3
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]     Checking rand_distr v0.6.0
[INFO] [stderr]    Compiling seq-macro v0.3.6
[INFO] [stderr]     Checking toml v1.1.2+spec-1.1.0
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling hashbrown v0.17.0
[INFO] [stderr]     Checking rayon v1.12.0
[INFO] [stderr]     Checking rmp v0.8.15
[INFO] [stderr]     Checking unty v0.0.4
[INFO] [stderr]     Checking colored v3.1.1
[INFO] [stderr]     Checking flate2 v1.1.9
[INFO] [stderr]    Compiling macerator v0.3.2
[INFO] [stderr]    Compiling rstest_macros v0.26.1
[INFO] [stderr]     Checking data-encoding v2.11.0
[INFO] [stderr]     Checking uuid v1.23.1
[INFO] [stderr]    Compiling relative-path v1.9.3
[INFO] [stderr]     Checking slab v0.4.12
[INFO] [stderr]     Checking moddef v0.3.0
[INFO] [stderr]     Checking futures-task v0.3.32
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling indexmap v2.14.0
[INFO] [stderr]     Checking tynm v0.2.0
[INFO] [stderr]     Checking backtrace v0.3.76
[INFO] [stderr]     Checking regex v1.12.3
[INFO] [stderr]     Checking sanitize-filename v0.6.0
[INFO] [stderr]    Compiling toml_edit v0.25.11+spec-1.1.0
[INFO] [stderr]    Compiling darling_core v0.23.0
[INFO] [stderr]    Compiling darling_core v0.21.3
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling proc-macro-crate v3.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling bytemuck_derive v1.10.2
[INFO] [stderr]    Compiling zerocopy-derive v0.8.48
[INFO] [stderr]    Compiling derive_more-impl v2.1.1
[INFO] [stderr]    Compiling derive-new v0.7.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling variadics_please v1.1.0
[INFO] [stderr]    Compiling equator-macro v0.4.2
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling burn-derive v0.21.0-pre.4
[INFO] [stderr]     Checking equator v0.4.2
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]     Checking aligned-vec v0.6.4
[INFO] [stderr]     Checking bytemuck v1.25.0
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking dyn-stack v0.13.2
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling darling_macro v0.21.3
[INFO] [stderr]    Compiling macerator-macros v0.1.5
[INFO] [stderr]    Compiling darling v0.21.3
[INFO] [stderr]    Compiling enumset_derive v0.14.0
[INFO] [stderr]    Compiling darling_macro v0.23.0
[INFO] [stderr]    Compiling darling v0.23.0
[INFO] [stderr]    Compiling cubecl-macros-internal v0.10.0-pre.4
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking enumset v1.1.10
[INFO] [stderr]     Checking rmp-serde v1.3.1
[INFO] [stderr]     Checking bincode v2.0.1
[INFO] [stderr]     Checking derive_more v2.1.1
[INFO] [stderr]     Checking cubecl-zspace v0.10.0-pre.4
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking rstest v0.26.1
[INFO] [stderr]     Checking half v2.7.1
[INFO] [stderr]     Checking float8 v0.7.0
[INFO] [stderr]     Checking gemm-common v0.19.0
[INFO] [stderr]     Checking gemm-f32 v0.19.0
[INFO] [stderr]     Checking gemm-c64 v0.19.0
[INFO] [stderr]     Checking gemm-c32 v0.19.0
[INFO] [stderr]     Checking gemm-f64 v0.19.0
[INFO] [stderr]     Checking gemm-f16 v0.19.0
[INFO] [stderr]     Checking gemm v0.19.0
[INFO] [stderr]     Checking cubecl-ir v0.10.0-pre.4
[INFO] [stderr]     Checking cubecl-core v0.10.0-pre.4
[INFO] [stderr]     Checking burn-std v0.21.0-pre.4
[INFO] [stderr]     Checking burn-backend v0.21.0-pre.4
[INFO] [stderr]     Checking burn-tensor v0.21.0-pre.4
[INFO] [stderr]     Checking burn-ir v0.21.0-pre.4
[INFO] [stderr]     Checking burn-autodiff v0.21.0-pre.4
[INFO] [stderr]     Checking burn-core v0.21.0-pre.4
[INFO] [stderr]     Checking burn-nn v0.21.0-pre.4
[INFO] [stderr]     Checking burn-optim v0.21.0-pre.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking burn-flex v0.21.0-pre.4
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 29s
[INFO] running `Command { std: "docker" "inspect" "aa96ef3179597bcaec91c6065c3b24cd0974a0cf3f06542957d9de35b7c7423f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa96ef3179597bcaec91c6065c3b24cd0974a0cf3f06542957d9de35b7c7423f", kill_on_drop: false }`
[INFO] [stdout] aa96ef3179597bcaec91c6065c3b24cd0974a0cf3f06542957d9de35b7c7423f