[INFO] fetching crate burn-train 0.20.0-pre.6...
[INFO] testing burn-train-0.20.0-pre.6 against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] extracting crate burn-train 0.20.0-pre.6 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate burn-train 0.20.0-pre.6
[INFO] finished tweaking crates.io crate burn-train 0.20.0-pre.6
[INFO] tweaked toml for crates.io crate burn-train 0.20.0-pre.6 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate burn-train 0.20.0-pre.6 on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate burn-train 0.20.0-pre.6 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" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded instability v0.3.10
[INFO] [stderr]   Downloaded burn-std v0.20.0-pre.6
[INFO] [stderr]   Downloaded toml_datetime v0.7.4+spec-1.0.0
[INFO] [stderr]   Downloaded cubecl-common v0.9.0-pre.6
[INFO] [stderr]   Downloaded toml_parser v1.0.5+spec-1.0.0
[INFO] [stderr]   Downloaded moddef v0.3.0
[INFO] [stderr]   Downloaded no-std-compat v0.2.0
[INFO] [stderr]   Downloaded type-map v0.5.1
[INFO] [stderr]   Downloaded macerator-macros v0.1.3
[INFO] [stderr]   Downloaded float8 v0.4.2
[INFO] [stderr]   Downloaded macerator v0.2.9
[INFO] [stderr]   Downloaded burn-ir v0.20.0-pre.6
[INFO] [stderr]   Downloaded burn-collective v0.20.0-pre.6
[INFO] [stderr]   Downloaded burn-autodiff v0.20.0-pre.6
[INFO] [stderr]   Downloaded burn-dataset v0.20.0-pre.6
[INFO] [stderr]   Downloaded burn-backend v0.20.0-pre.6
[INFO] [stderr]   Downloaded cubecl-runtime v0.9.0-pre.6
[INFO] [stderr]   Downloaded derive_more-impl v2.1.0
[INFO] [stderr]   Downloaded axum v0.8.7
[INFO] [stderr]   Downloaded cubecl-core v0.9.0-pre.6
[INFO] [stderr]   Downloaded cubecl-cpp v0.9.0-pre.6
[INFO] [stderr]   Downloaded cubecl-wgpu v0.9.0-pre.6
[INFO] [stderr]   Downloaded derive_more v2.1.0
[INFO] [stderr]   Downloaded burn-tensor v0.20.0-pre.6
[INFO] [stderr]   Downloaded burn-ndarray v0.20.0-pre.6
[INFO] [stderr]   Downloaded cubecl-macros v0.9.0-pre.6
[INFO] [stderr]   Downloaded ndarray v0.17.1
[INFO] [stderr]   Downloaded toml v0.9.9+spec-1.0.0
[INFO] [stderr]   Downloaded burn-optim v0.20.0-pre.6
[INFO] [stderr]   Downloaded stable-vec v0.4.1
[INFO] [stderr]   Downloaded cubecl-opt v0.9.0-pre.6
[INFO] [stderr]   Downloaded cubecl v0.9.0-pre.6
[INFO] [stderr]   Downloaded burn-core v0.20.0-pre.6
[INFO] [stderr]   Downloaded burn-communication v0.20.0-pre.6
[INFO] [stderr]   Downloaded cubecl-cuda v0.9.0-pre.6
[INFO] [stderr]   Downloaded cubecl-ir v0.9.0-pre.6
[INFO] [stderr]   Downloaded toml_writer v1.0.5+spec-1.0.0
[INFO] [stderr]   Downloaded systemstat v0.2.5
[INFO] [stderr]   Downloaded burn-derive v0.20.0-pre.6
[INFO] [stderr]   Downloaded cubecl-macros-internal v0.9.0-pre.6
[INFO] [stderr]   Downloaded wgpu-core-deps-emscripten v26.0.0
[INFO] [stderr]   Downloaded cudarc v0.18.2
[INFO] [stderr]   Downloaded float4 v0.1.0
[INFO] [stderr]   Downloaded embassy-futures v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44108cfe975d39ce8f1a44030991c47615ef81cf9c3c1665940fcf3285749574
[INFO] running `Command { std: "docker" "start" "-a" "44108cfe975d39ce8f1a44030991c47615ef81cf9c3c1665940fcf3285749574", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44108cfe975d39ce8f1a44030991c47615ef81cf9c3c1665940fcf3285749574", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44108cfe975d39ce8f1a44030991c47615ef81cf9c3c1665940fcf3285749574", kill_on_drop: false }`
[INFO] [stdout] 44108cfe975d39ce8f1a44030991c47615ef81cf9c3c1665940fcf3285749574
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ad5f51f6a6570131df311c5f68022ecd6e4c7e35498093794205a9e3368f8c8
[INFO] running `Command { std: "docker" "start" "-a" "9ad5f51f6a6570131df311c5f68022ecd6e4c7e35498093794205a9e3368f8c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.31
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling convert_case v0.10.0
[INFO] [stderr]    Compiling cubecl-common v0.9.0-pre.6
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.26
[INFO] [stderr]    Compiling spin v0.10.0
[INFO] [stderr]    Compiling serde_bytes v0.11.19
[INFO] [stderr]    Compiling futures-lite v2.6.1
[INFO] [stderr]    Compiling embassy-futures v0.1.2
[INFO] [stderr]    Compiling bytes v1.11.0
[INFO] [stderr]    Compiling hashbrown v0.16.1
[INFO] [stderr]    Compiling libc v0.2.178
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling option-ext v0.2.0
[INFO] [stderr]    Compiling winnow v0.7.14
[INFO] [stderr]    Compiling dirs-sys v0.5.0
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling indexmap v2.12.1
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling csv-core v0.1.13
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling num_threads v0.1.7
[INFO] [stderr]    Compiling toml_datetime v0.7.4+spec-1.0.0
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling csv v1.4.0
[INFO] [stderr]    Compiling dirs v6.0.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling thread-tree v0.3.3
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling rstest_macros v0.26.1
[INFO] [stderr]    Compiling macerator v0.2.9
[INFO] [stderr]    Compiling tracing-core v0.1.35
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling rmp v0.8.14
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling instability v0.3.10
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling event-listener v5.4.1
[INFO] [stderr]    Compiling signal-hook-mio v0.2.5
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling libloading v0.8.9
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling toml_parser v1.0.5+spec-1.0.0
[INFO] [stderr]    Compiling data-encoding v2.9.0
[INFO] [stderr]    Compiling relative-path v1.9.3
[INFO] [stderr]    Compiling moddef v0.3.0
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling indoc v2.0.7
[INFO] [stderr]    Compiling burn-ndarray v0.20.0-pre.6
[INFO] [stderr]    Compiling uuid v1.19.0
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling toml_edit v0.23.10+spec-1.0.0
[INFO] [stderr]    Compiling ndarray v0.17.1
[INFO] [stderr]    Compiling crossterm v0.28.1
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling tracing-subscriber v0.3.22
[INFO] [stderr]    Compiling nvml-wrapper-sys v0.9.0
[INFO] [stderr]    Compiling unicode-truncate v1.1.0
[INFO] [stderr]    Compiling compact_str v0.8.1
[INFO] [stderr]    Compiling const-random v0.1.18
[INFO] [stderr]    Compiling atomic_float v1.1.0
[INFO] [stderr]    Compiling unicode-width v0.2.0
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling proc-macro-crate v3.4.0
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/2fd6efc32704647e64d3d646d21c4c68eae100e4/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.111/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "test", "visit", "visit-mut"))' -C metadata=1f761b6400641c47 -C extra-filename=-77ccb8a5b4977714 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-43e32a25692bf44a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-01cdf4ac6a2aaf5b.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-9533002ac35f5809.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `regex-syntax` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/2fd6efc32704647e64d3d646d21c4c68eae100e4/bin/rustc --crate-name regex_syntax --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-syntax-0.8.8/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --allow=unexpected_cfgs --check-cfg 'cfg(docsrs_regex)' --cfg 'feature="default"' --cfg 'feature="std"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("arbitrary", "default", "std", "unicode", "unicode-age", "unicode-bool", "unicode-case", "unicode-gencat", "unicode-perl", "unicode-script", "unicode-segment"))' -C metadata=a7174f3b8f975bfe -C extra-filename=-772b60ac7f4bd548 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "9ad5f51f6a6570131df311c5f68022ecd6e4c7e35498093794205a9e3368f8c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ad5f51f6a6570131df311c5f68022ecd6e4c7e35498093794205a9e3368f8c8", kill_on_drop: false }`
[INFO] [stdout] 9ad5f51f6a6570131df311c5f68022ecd6e4c7e35498093794205a9e3368f8c8