[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#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fw4ngzhen%2Flearn_burn" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-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-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/w4ngzhen/learn_burn on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40d9095781aef3c2dd1a1520640ba0c3b9082eb69c4b957497e09cc772bcc170
[INFO] running `Command { std: "docker" "start" "-a" "40d9095781aef3c2dd1a1520640ba0c3b9082eb69c4b957497e09cc772bcc170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40d9095781aef3c2dd1a1520640ba0c3b9082eb69c4b957497e09cc772bcc170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40d9095781aef3c2dd1a1520640ba0c3b9082eb69c4b957497e09cc772bcc170", kill_on_drop: false }`
[INFO] [stdout] 40d9095781aef3c2dd1a1520640ba0c3b9082eb69c4b957497e09cc772bcc170
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29f85a2c7c5eea630b7154c2b9560dbae6d5fea1ef967ebe4fa61916d4a25aec
[INFO] running `Command { std: "docker" "start" "-a" "29f85a2c7c5eea630b7154c2b9560dbae6d5fea1ef967ebe4fa61916d4a25aec", 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 0.56s
[INFO] running `Command { std: "docker" "inspect" "29f85a2c7c5eea630b7154c2b9560dbae6d5fea1ef967ebe4fa61916d4a25aec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29f85a2c7c5eea630b7154c2b9560dbae6d5fea1ef967ebe4fa61916d4a25aec", kill_on_drop: false }`
[INFO] [stdout] 29f85a2c7c5eea630b7154c2b9560dbae6d5fea1ef967ebe4fa61916d4a25aec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b8e66cc3bbb3fda7fdea9c237b80052c0c5d133542d4cfffdad5c4c9cd667e6
[INFO] running `Command { std: "docker" "start" "-a" "0b8e66cc3bbb3fda7fdea9c237b80052c0c5d133542d4cfffdad5c4c9cd667e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.97
[INFO] [stderr]    Compiling num-traits v0.2.19
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[INFO] [stderr]    Compiling portable-atomic v1.11.1
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[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling dirs-sys v0.5.0
[INFO] [stderr]    Compiling cubecl-common v0.6.0
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling prettyplease v0.2.36
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling futures-lite v2.6.1
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[INFO] [stderr]    Compiling darling_core v0.21.1
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[INFO] [stderr]    Compiling bytemuck_derive v1.10.1
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[INFO] [stderr]    Compiling burn-derive v0.18.0
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[INFO] [stderr]    Compiling darling_macro v0.21.1
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[INFO] [stderr]    Compiling gpu-alloc v0.6.0
[INFO] [stderr]    Compiling toml v0.9.5
[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-reduce v0.6.0
[INFO] [stderr]    Compiling cubecl-random v0.6.0
[INFO] [stderr]    Compiling cubecl-matmul v0.6.0
[INFO] [stderr]    Compiling wgpu-core-deps-windows-linux-android v25.0.0
[INFO] [stderr]    Compiling cubecl-convolution v0.6.0
[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 00s
[INFO] running `Command { std: "docker" "inspect" "0b8e66cc3bbb3fda7fdea9c237b80052c0c5d133542d4cfffdad5c4c9cd667e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b8e66cc3bbb3fda7fdea9c237b80052c0c5d133542d4cfffdad5c4c9cd667e6", kill_on_drop: false }`
[INFO] [stdout] 0b8e66cc3bbb3fda7fdea9c237b80052c0c5d133542d4cfffdad5c4c9cd667e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 02700cedb58fb606b626834ffc38a68dbc848b138ba36974486d49daad3d1867
[INFO] running `Command { std: "docker" "start" "-a" "02700cedb58fb606b626834ffc38a68dbc848b138ba36974486d49daad3d1867", 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 0.62s
[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" "02700cedb58fb606b626834ffc38a68dbc848b138ba36974486d49daad3d1867", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02700cedb58fb606b626834ffc38a68dbc848b138ba36974486d49daad3d1867", kill_on_drop: false }`
[INFO] [stdout] 02700cedb58fb606b626834ffc38a68dbc848b138ba36974486d49daad3d1867