[INFO] cloning repository https://github.com/seurimas/d2l_burn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seurimas/d2l_burn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseurimas%2Fd2l_burn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseurimas%2Fd2l_burn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e131c1e8f63c42e53f9b02b924e413839fe210c5
[INFO] testing seurimas/d2l_burn against 1.93.0 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseurimas%2Fd2l_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/seurimas/d2l_burn
[INFO] finished tweaking git repo https://github.com/seurimas/d2l_burn
[INFO] tweaked toml for git repo https://github.com/seurimas/d2l_burn written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/seurimas/d2l_burn on toolchain 1.93.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.93.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/seurimas/d2l_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" "+1.93.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9dff008310a11cdce416ca550ad621bf9b129fa94003cfc937f64f71917e39cb
[INFO] running `Command { std: "docker" "start" "-a" "9dff008310a11cdce416ca550ad621bf9b129fa94003cfc937f64f71917e39cb", kill_on_drop: false }`
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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_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `backend::wgpu::WgpuDevice`
[INFO] [stdout]  --> src/chpt2.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use burn::{backend::wgpu::WgpuDevice, data::dataset::Dataset, prelude::*};
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/chpt2.rs:276:9
[INFO] [stdout]     |
[INFO] [stdout] 276 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Backend` is never used
[INFO] [stdout]  --> src/chpt2.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub type Backend = burn::backend::Wgpu;
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `AutoDiffBackend` is never used
[INFO] [stdout]  --> src/chpt2.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub type AutoDiffBackend = burn::backend::Autodiff<Backend>;
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nullable` is never used
[INFO] [stdout]  --> src/chpt2.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn nullable<'de, D, T, E>(deserializer: D) -> Result<Option<T>, D::Error>
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_dataset` is never used
[INFO] [stdout]   --> src/chpt2.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn get_dataset() -> burn::data::dataset::InMemDataset<HouseTiny> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HouseTiny` is never constructed
[INFO] [stdout]   --> src/chpt2.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct HouseTiny {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 26s
[INFO] running `Command { std: "docker" "inspect" "6f4bf15c9f7331ba7bee30b02f549695a7468c0938661cf16fa48038e1bedc8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f4bf15c9f7331ba7bee30b02f549695a7468c0938661cf16fa48038e1bedc8a", kill_on_drop: false }`
[INFO] [stdout] 6f4bf15c9f7331ba7bee30b02f549695a7468c0938661cf16fa48038e1bedc8a
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3be6fb967b08b9f88fca03dc2bb45187165489ce8fbe5d2ba5ac497248febefd
[INFO] running `Command { std: "docker" "start" "-a" "3be6fb967b08b9f88fca03dc2bb45187165489ce8fbe5d2ba5ac497248febefd", kill_on_drop: false }`
[INFO] [stderr]    Compiling d2l_burn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/chpt2.rs:276:9
[INFO] [stdout]     |
[INFO] [stdout] 276 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `X` should have a snake case name
[INFO] [stdout]    --> src/chpt2.rs:212:13
[INFO] [stdout]     |
[INFO] [stdout] 212 |         let X = simple_arange(0..24, &device).reshape([2, 3, 4]);
[INFO] [stdout]     |             ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.51s
[INFO] running `Command { std: "docker" "inspect" "3be6fb967b08b9f88fca03dc2bb45187165489ce8fbe5d2ba5ac497248febefd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3be6fb967b08b9f88fca03dc2bb45187165489ce8fbe5d2ba5ac497248febefd", kill_on_drop: false }`
[INFO] [stdout] 3be6fb967b08b9f88fca03dc2bb45187165489ce8fbe5d2ba5ac497248febefd
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b4bf075db4a653439bd2b517dac8184e18e7f2484352600094da5034825984ad
[INFO] running `Command { std: "docker" "start" "-a" "b4bf075db4a653439bd2b517dac8184e18e7f2484352600094da5034825984ad", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/chpt2.rs:276:9
[INFO] [stderr]     |
[INFO] [stderr] 276 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `X` should have a snake case name
[INFO] [stderr]    --> src/chpt2.rs:212:13
[INFO] [stderr]     |
[INFO] [stderr] 212 |         let X = simple_arange(0..24, &device).reshape([2, 3, 4]);
[INFO] [stderr]     |             ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `d2l_burn` (bin "d2l_burn" test) generated 2 warnings (run `cargo fix --bin "d2l_burn" -p d2l_burn --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/d2l_burn-77167f993439519c)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test chpt2::chapter_2_2::two_two_one ... ok
[INFO] [stderr] error: XDG_RUNTIME_DIR is invalid or not set in the environment.
[INFO] [stdout] test chpt2::chapter_2::two_one_two ... ok
[INFO] [stdout] test chpt2::chapter_2::two_one_four ... ok
[INFO] [stderr] error: test failed, to rerun pass `--bin d2l_burn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/d2l_burn-77167f993439519c` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "b4bf075db4a653439bd2b517dac8184e18e7f2484352600094da5034825984ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4bf075db4a653439bd2b517dac8184e18e7f2484352600094da5034825984ad", kill_on_drop: false }`
[INFO] [stdout] b4bf075db4a653439bd2b517dac8184e18e7f2484352600094da5034825984ad
