[INFO] cloning repository https://github.com/w4ngzhen/learn_burn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/w4ngzhen/learn_burn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fw4ngzhen%2Flearn_burn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fw4ngzhen%2Flearn_burn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d7901fe6b293ee0ffbd0af8066d29df0898fdb07
[INFO] testing w4ngzhen/learn_burn against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fw4ngzhen%2Flearn_burn" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/w4ngzhen/learn_burn
[INFO] finished tweaking git repo https://github.com/w4ngzhen/learn_burn
[INFO] tweaked toml for git repo https://github.com/w4ngzhen/learn_burn written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/w4ngzhen/learn_burn on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/w4ngzhen/learn_burn 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01133f81d6a578d6383b476546832d776062bcbae61a261d15edbb1fac18c843
[INFO] running `Command { std: "docker" "start" "-a" "01133f81d6a578d6383b476546832d776062bcbae61a261d15edbb1fac18c843", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01133f81d6a578d6383b476546832d776062bcbae61a261d15edbb1fac18c843", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01133f81d6a578d6383b476546832d776062bcbae61a261d15edbb1fac18c843", kill_on_drop: false }`
[INFO] [stdout] 01133f81d6a578d6383b476546832d776062bcbae61a261d15edbb1fac18c843
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da69fe29fba1d14efcd87b69e0f8aa7ed495b8b94b1858214a15fe2b8e9d1f89
[INFO] running `Command { std: "docker" "start" "-a" "da69fe29fba1d14efcd87b69e0f8aa7ed495b8b94b1858214a15fe2b8e9d1f89", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn_burn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "da69fe29fba1d14efcd87b69e0f8aa7ed495b8b94b1858214a15fe2b8e9d1f89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da69fe29fba1d14efcd87b69e0f8aa7ed495b8b94b1858214a15fe2b8e9d1f89", kill_on_drop: false }`
[INFO] [stdout] da69fe29fba1d14efcd87b69e0f8aa7ed495b8b94b1858214a15fe2b8e9d1f89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 200d8837527fd6c44569cbc980f3dc9cdc25bb5074f4cd907111ba270de46e0a
[INFO] running `Command { std: "docker" "start" "-a" "200d8837527fd6c44569cbc980f3dc9cdc25bb5074f4cd907111ba270de46e0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.97
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[INFO] [stderr]    Compiling cfg-if v1.0.1
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[INFO] [stderr]    Compiling fastrand v2.3.0
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[INFO] [stderr]    Compiling unty v0.0.4
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling uuid v1.18.0
[INFO] [stderr]    Compiling data-encoding v2.9.0
[INFO] [stderr]    Compiling hashbrown v0.13.2
[INFO] [stderr]    Compiling document-features v0.2.11
[INFO] [stderr]    Compiling flate2 v1.1.2
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling sanitize-filename v0.6.0
[INFO] [stderr]    Compiling darling_core v0.21.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling bytemuck_derive v1.10.1
[INFO] [stderr]    Compiling derive_more-impl v2.0.1
[INFO] [stderr]    Compiling derive-new v0.7.0
[INFO] [stderr]    Compiling variadics_please v1.1.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.14
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]    Compiling burn-derive v0.18.0
[INFO] [stderr]    Compiling bytemuck v1.23.2
[INFO] [stderr]    Compiling strum v0.26.3
[INFO] [stderr]    Compiling derive_more v2.0.1
[INFO] [stderr]    Compiling darling_macro v0.21.1
[INFO] [stderr]    Compiling darling v0.21.1
[INFO] [stderr]    Compiling cubecl-macros-internal v0.6.0
[INFO] [stderr]    Compiling half v2.6.0
[INFO] [stderr]    Compiling bitflags v2.9.1
[INFO] [stderr]    Compiling toml_datetime v0.7.0
[INFO] [stderr]    Compiling serde_spanned v1.0.0
[INFO] [stderr]    Compiling serde_bytes v0.11.17
[INFO] [stderr]    Compiling bincode v2.0.1
[INFO] [stderr]    Compiling rmp-serde v1.3.0
[INFO] [stderr]    Compiling spirv v0.3.0+sdk-1.3.268.0
[INFO] [stderr]    Compiling gpu-alloc-types v0.3.0
[INFO] [stderr]    Compiling gpu-descriptor-types v0.2.0
[INFO] [stderr]    Compiling wgpu-types v25.0.0
[INFO] [stderr]    Compiling toml v0.9.5
[INFO] [stderr]    Compiling gpu-alloc v0.6.0
[INFO] [stderr]    Compiling indexmap v2.10.0
[INFO] [stderr]    Compiling gpu-descriptor v0.3.2
[INFO] [stderr]    Compiling text_placeholder v0.5.1
[INFO] [stderr]    Compiling cubecl-ir v0.6.0
[INFO] [stderr]    Compiling burn-common v0.18.0
[INFO] [stderr]    Compiling cubecl-core v0.6.0
[INFO] [stderr]    Compiling cubecl-std v0.6.0
[INFO] [stderr]    Compiling cubecl-random v0.6.0
[INFO] [stderr]    Compiling cubecl-reduce v0.6.0
[INFO] [stderr]    Compiling cubecl-matmul v0.6.0
[INFO] [stderr]    Compiling cubecl-convolution v0.6.0
[INFO] [stderr]    Compiling wgpu-core-deps-windows-linux-android v25.0.0
[INFO] [stderr]    Compiling cubecl v0.6.0
[INFO] [stderr]    Compiling burn-tensor v0.18.0
[INFO] [stderr]    Compiling burn-ir v0.18.0
[INFO] [stderr]    Compiling burn-core v0.18.0
[INFO] [stderr]    Compiling burn-fusion v0.18.0
[INFO] [stderr]    Compiling burn-cubecl-fusion v0.18.0
[INFO] [stderr]    Compiling burn-cubecl v0.18.0
[INFO] [stderr]    Compiling burn-wgpu v0.18.0
[INFO] [stderr]    Compiling burn v0.18.0
[INFO] [stderr]    Compiling learn_burn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> examples/linear_regression/main.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let x = Tensor::<MyBackend, 2>::from_data(x_data, &device);
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> examples/linear_regression/main.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let y = Tensor::<MyBackend, 1>::from_data(y_data, &device);
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2m 18s
[INFO] running `Command { std: "docker" "inspect" "200d8837527fd6c44569cbc980f3dc9cdc25bb5074f4cd907111ba270de46e0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "200d8837527fd6c44569cbc980f3dc9cdc25bb5074f4cd907111ba270de46e0a", kill_on_drop: false }`
[INFO] [stdout] 200d8837527fd6c44569cbc980f3dc9cdc25bb5074f4cd907111ba270de46e0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 09ca8db2409fae3493f4047058af5c7be3310b6b91e0bf2b7534a6888096198f
[INFO] running `Command { std: "docker" "start" "-a" "09ca8db2409fae3493f4047058af5c7be3310b6b91e0bf2b7534a6888096198f", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> examples/linear_regression/main.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let x = Tensor::<MyBackend, 2>::from_data(x_data, &device);
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> examples/linear_regression/main.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let y = Tensor::<MyBackend, 1>::from_data(y_data, &device);
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: `learn_burn` (example "linear_regression") generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/learn_burn-64d76cfb802c085c)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "09ca8db2409fae3493f4047058af5c7be3310b6b91e0bf2b7534a6888096198f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09ca8db2409fae3493f4047058af5c7be3310b6b91e0bf2b7534a6888096198f", kill_on_drop: false }`
[INFO] [stdout] 09ca8db2409fae3493f4047058af5c7be3310b6b91e0bf2b7534a6888096198f