[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 try#2440211fe03bc45c89b6dc1a3df18382ce91e32b 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-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/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-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/w4ngzhen/learn_burn on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76f96c6fee20ecfc691c46a074e62766b3a8d1a18154798796ce4d611ab894d8
[INFO] running `Command { std: "docker" "start" "-a" "76f96c6fee20ecfc691c46a074e62766b3a8d1a18154798796ce4d611ab894d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76f96c6fee20ecfc691c46a074e62766b3a8d1a18154798796ce4d611ab894d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76f96c6fee20ecfc691c46a074e62766b3a8d1a18154798796ce4d611ab894d8", kill_on_drop: false }`
[INFO] [stdout] 76f96c6fee20ecfc691c46a074e62766b3a8d1a18154798796ce4d611ab894d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c24808cf38cdd3af3bde3385ae55844b7a746a2cb23c683e7d41acd69b561385
[INFO] running `Command { std: "docker" "start" "-a" "c24808cf38cdd3af3bde3385ae55844b7a746a2cb23c683e7d41acd69b561385", 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 0.49s
[INFO] running `Command { std: "docker" "inspect" "c24808cf38cdd3af3bde3385ae55844b7a746a2cb23c683e7d41acd69b561385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c24808cf38cdd3af3bde3385ae55844b7a746a2cb23c683e7d41acd69b561385", kill_on_drop: false }`
[INFO] [stdout] c24808cf38cdd3af3bde3385ae55844b7a746a2cb23c683e7d41acd69b561385
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7ee73a88aea916e61cb3751fe08a0fca925951527dba39abc67dfdef2ccb2ae
[INFO] running `Command { std: "docker" "start" "-a" "e7ee73a88aea916e61cb3751fe08a0fca925951527dba39abc67dfdef2ccb2ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.97
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling serde_json v1.0.142
[INFO] [stderr]    Compiling portable-atomic v1.11.1
[INFO] [stderr]    Compiling web-time v1.1.0
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling embassy-futures v0.1.1
[INFO] [stderr]    Compiling dirs-sys v0.5.0
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling cubecl-common v0.6.0
[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 winnow v0.7.12
[INFO] [stderr]    Compiling spin v0.10.0
[INFO] [stderr]    Compiling event-listener v5.4.1
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling cubecl-runtime v0.6.0
[INFO] [stderr]    Compiling dirs v6.0.0
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling futures-lite v2.6.1
[INFO] [stderr]    Compiling float-ord v0.3.2
[INFO] [stderr]    Compiling cubecl-macros v0.6.0
[INFO] [stderr]    Compiling toml_writer v1.0.2
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[INFO] [stderr]    Compiling thiserror v2.0.14
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[INFO] [stderr]    Compiling md5 v0.8.0
[INFO] [stderr]    Compiling naga v25.0.1
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling async-channel v2.5.0
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[INFO] [stderr]    Compiling regex-automata v0.4.9
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[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
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[INFO] [stderr]    Compiling burn-derive v0.18.0
[INFO] [stderr]    Compiling bytemuck v1.23.2
[INFO] [stderr]    Compiling darling_macro v0.21.1
[INFO] [stderr]    Compiling strum v0.26.3
[INFO] [stderr]    Compiling darling v0.21.1
[INFO] [stderr]    Compiling cubecl-macros-internal v0.6.0
[INFO] [stderr]    Compiling derive_more v2.0.1
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[INFO] [stderr]    Compiling half v2.6.0
[INFO] [stderr]    Compiling serde_spanned v1.0.0
[INFO] [stderr]    Compiling toml_datetime v0.7.0
[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 gpu-descriptor-types v0.2.0
[INFO] [stderr]    Compiling gpu-alloc-types v0.3.0
[INFO] [stderr]    Compiling spirv v0.3.0+sdk-1.3.268.0
[INFO] [stderr]    Compiling wgpu-types v25.0.0
[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 gpu-alloc v0.6.0
[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 1m 54s
[INFO] running `Command { std: "docker" "inspect" "e7ee73a88aea916e61cb3751fe08a0fca925951527dba39abc67dfdef2ccb2ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7ee73a88aea916e61cb3751fe08a0fca925951527dba39abc67dfdef2ccb2ae", kill_on_drop: false }`
[INFO] [stdout] e7ee73a88aea916e61cb3751fe08a0fca925951527dba39abc67dfdef2ccb2ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6a2f2104afdbaa5d557bcb3140bc691aed49c3df8962eedff3445802c68f4eb7
[INFO] running `Command { std: "docker" "start" "-a" "6a2f2104afdbaa5d557bcb3140bc691aed49c3df8962eedff3445802c68f4eb7", 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 0.57s
[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" "6a2f2104afdbaa5d557bcb3140bc691aed49c3df8962eedff3445802c68f4eb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a2f2104afdbaa5d557bcb3140bc691aed49c3df8962eedff3445802c68f4eb7", kill_on_drop: false }`
[INFO] [stdout] 6a2f2104afdbaa5d557bcb3140bc691aed49c3df8962eedff3445802c68f4eb7