[INFO] fetching crate burn-train 0.15.0...
[INFO] checking burn-train-0.15.0 against try#5be211015c49a4eb5c973cc5ebe17db5c6e7ffb8 for pr-132325-1
[INFO] extracting crate burn-train 0.15.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate burn-train 0.15.0 on toolchain 5be211015c49a4eb5c973cc5ebe17db5c6e7ffb8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5be211015c49a4eb5c973cc5ebe17db5c6e7ffb8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate burn-train 0.15.0
[INFO] finished tweaking crates.io crate burn-train 0.15.0
[INFO] tweaked toml for crates.io crate burn-train 0.15.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5be211015c49a4eb5c973cc5ebe17db5c6e7ffb8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 321 packages to latest compatible versions
[INFO] [stderr]       Adding derive-new v0.6.0 (available: v0.7.0)
[INFO] [stderr]       Adding sysinfo v0.30.13 (available: v0.32.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5be211015c49a4eb5c973cc5ebe17db5c6e7ffb8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+5be211015c49a4eb5c973cc5ebe17db5c6e7ffb8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e928e7d5b049eee14b7bace2ee735b2be458ea308bebb6ac4318fbeef2bddd5d
[INFO] running `Command { std: "docker" "start" "-a" "e928e7d5b049eee14b7bace2ee735b2be458ea308bebb6ac4318fbeef2bddd5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e928e7d5b049eee14b7bace2ee735b2be458ea308bebb6ac4318fbeef2bddd5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e928e7d5b049eee14b7bace2ee735b2be458ea308bebb6ac4318fbeef2bddd5d", kill_on_drop: false }`
[INFO] [stdout] e928e7d5b049eee14b7bace2ee735b2be458ea308bebb6ac4318fbeef2bddd5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+5be211015c49a4eb5c973cc5ebe17db5c6e7ffb8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 563ca35c798485f8b126fc04b629095ef309ff71d8263a2464fedaaf0ec33ba8
[INFO] running `Command { std: "docker" "start" "-a" "563ca35c798485f8b126fc04b629095ef309ff71d8263a2464fedaaf0ec33ba8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling libc v0.2.162
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling serde v1.0.214
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling libm v0.2.11
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking once_cell v1.20.2
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]    Compiling portable-atomic v1.9.0
[INFO] [stderr]    Compiling rustversion v1.0.18
[INFO] [stderr]     Checking fastrand v2.2.0
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]    Compiling rustix v0.38.39
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking foldhash v0.1.3
[INFO] [stderr]    Compiling cubecl-common v0.3.0
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking parking v2.2.1
[INFO] [stderr]     Checking allocator-api2 v0.2.19
[INFO] [stderr]     Checking pin-project-lite v0.2.15
[INFO] [stderr]     Checking embassy-futures v0.1.1
[INFO] [stderr]    Compiling thiserror v1.0.68
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]     Checking futures-lite v2.5.0
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]     Checking num_threads v0.1.7
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-channel v0.5.13
[INFO] [stderr]     Checking option-ext v0.2.0
[INFO] [stderr]     Checking num-conv v0.1.0
[INFO] [stderr]     Checking time-core v0.1.2
[INFO] [stderr]    Compiling serde_json v1.0.132
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]    Compiling matrixmultiply v0.3.9
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking adler2 v2.0.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]     Checking miniz_oxide v0.8.0
[INFO] [stderr]     Checking castaway v0.2.3
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking mio v1.0.2
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking thread-tree v0.3.3
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking rmp v0.8.14
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking dirs v5.0.1
[INFO] [stderr]     Checking crc32fast v1.4.2
[INFO] [stderr]     Checking libloading v0.8.5
[INFO] [stderr]     Checking unicode-segmentation v1.12.0
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking nvml-wrapper-sys v0.8.0
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking time v0.3.36
[INFO] [stderr]     Checking signal-hook-mio v0.2.4
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking compact_str v0.8.0
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking data-encoding v2.6.0
[INFO] [stderr]     Checking flate2 v1.0.34
[INFO] [stderr]    Compiling burn-ndarray v0.15.0
[INFO] [stderr]     Checking unicode-width v0.2.0
[INFO] [stderr]    Compiling indoc v2.0.5
[INFO] [stderr]     Checking uuid v1.11.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking bytesize v1.3.0
[INFO] [stderr]     Checking atomic_float v1.1.0
[INFO] [stderr]     Checking regex-automata v0.4.8
[INFO] [stderr]     Checking tempfile v3.14.0
[INFO] [stderr]     Checking crossterm v0.28.1
[INFO] [stderr]     Checking unicode-truncate v1.1.0
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking systemstat v0.2.3
[INFO] [stderr]     Checking sanitize-filename v0.5.0
[INFO] [stderr]     Checking ndarray v0.16.1
[INFO] [stderr]     Checking sysinfo v0.30.13
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling serde_derive v1.0.214
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling derive-new v0.6.0
[INFO] [stderr]    Compiling bytemuck_derive v1.8.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.68
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]    Compiling instability v0.3.2
[INFO] [stderr]    Compiling burn-derive v0.15.0
[INFO] [stderr]     Checking bytemuck v1.19.0
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking tracing-appender v0.2.3
[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]    Compiling wrapcenum-derive v0.4.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking strum v0.26.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking nvml-wrapper v0.10.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking hashbrown v0.15.1
[INFO] [stderr]     Checking half v2.4.1
[INFO] [stderr]     Checking serde_bytes v0.11.15
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking rmp-serde v1.3.0
[INFO] [stderr]     Checking bincode v2.0.0-rc.3
[INFO] [stderr]     Checking burn-common v0.15.0
[INFO] [stderr]     Checking burn-dataset v0.15.0
[INFO] [stderr]     Checking burn-tensor v0.15.0
[INFO] [stderr]     Checking lru v0.12.5
[INFO] [stderr]     Checking ratatui v0.29.0
[INFO] [stderr]     Checking burn-core v0.15.0
[INFO] [stderr]     Checking burn-autodiff v0.15.0
[INFO] [stderr]     Checking burn-train v0.15.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]   --> src/metric/base.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn fake() -> Self {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![warn(missing_docs)]
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 48.18s
[INFO] running `Command { std: "docker" "inspect" "563ca35c798485f8b126fc04b629095ef309ff71d8263a2464fedaaf0ec33ba8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "563ca35c798485f8b126fc04b629095ef309ff71d8263a2464fedaaf0ec33ba8", kill_on_drop: false }`
[INFO] [stdout] 563ca35c798485f8b126fc04b629095ef309ff71d8263a2464fedaaf0ec33ba8