[INFO] cloning repository https://github.com/jrmoulton/learn-wgpu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jrmoulton/learn-wgpu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrmoulton%2Flearn-wgpu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrmoulton%2Flearn-wgpu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7f7a1cbf2c8ad80fa30ffd6f919ee06eee5cbd91
[INFO] testing jrmoulton/learn-wgpu against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjrmoulton%2Flearn-wgpu" "/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/jrmoulton/learn-wgpu
[INFO] finished tweaking git repo https://github.com/jrmoulton/learn-wgpu
[INFO] tweaked toml for git repo https://github.com/jrmoulton/learn-wgpu written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jrmoulton/learn-wgpu on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jrmoulton/learn-wgpu 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9328b333e110ca48a902435ec99dbc4c30560b5065f07170ed934a370e3b422
[INFO] running `Command { std: "docker" "start" "-a" "a9328b333e110ca48a902435ec99dbc4c30560b5065f07170ed934a370e3b422", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9328b333e110ca48a902435ec99dbc4c30560b5065f07170ed934a370e3b422", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9328b333e110ca48a902435ec99dbc4c30560b5065f07170ed934a370e3b422", kill_on_drop: false }`
[INFO] [stdout] a9328b333e110ca48a902435ec99dbc4c30560b5065f07170ed934a370e3b422
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d58a240fc76df92404d4896b3cef7443709c447d7c16b57d37c8a06414a1390
[INFO] running `Command { std: "docker" "start" "-a" "1d58a240fc76df92404d4896b3cef7443709c447d7c16b57d37c8a06414a1390", kill_on_drop: false }`
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[INFO] [stderr]    Compiling png v0.16.8
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[INFO] [stderr]    Compiling pollster v0.2.5
[INFO] [stderr]    Compiling xcursor v0.3.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling bytemuck_derive v1.0.1
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling bytemuck v1.7.3
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling naga v0.8.5
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling wayland-commons v0.29.4
[INFO] [stderr]    Compiling calloop v0.9.3
[INFO] [stderr]    Compiling tiff v0.6.1
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling wayland-cursor v0.29.4
[INFO] [stderr]    Compiling wgpu-hal v0.12.4
[INFO] [stderr]    Compiling wgpu v0.12.0
[INFO] [stderr]    Compiling learn-wgpu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `challenge_render_pipeline`
[INFO] [stdout]    --> src/state.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |         let challenge_render_pipeline = device.create_render_pipeline(
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_challenge_render_pipeline`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/vertex.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Vertex {
[INFO] [stdout]   |            ^^^^^^ field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]  --> src/vertex.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[repr(C)]
[INFO] [stdout]   | ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 38s
[INFO] running `Command { std: "docker" "inspect" "1d58a240fc76df92404d4896b3cef7443709c447d7c16b57d37c8a06414a1390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d58a240fc76df92404d4896b3cef7443709c447d7c16b57d37c8a06414a1390", kill_on_drop: false }`
[INFO] [stdout] 1d58a240fc76df92404d4896b3cef7443709c447d7c16b57d37c8a06414a1390
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8950ba4b4c29b71dc34ae5ddaecfadfd9781e2da5667ecb7146ce9f7641b1302
[INFO] running `Command { std: "docker" "start" "-a" "8950ba4b4c29b71dc34ae5ddaecfadfd9781e2da5667ecb7146ce9f7641b1302", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn-wgpu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `challenge_render_pipeline`
[INFO] [stdout]    --> src/state.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |         let challenge_render_pipeline = device.create_render_pipeline(
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_challenge_render_pipeline`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/vertex.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Vertex {
[INFO] [stdout]   |            ^^^^^^ field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check` is never used
[INFO] [stdout]  --> src/vertex.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[repr(C)]
[INFO] [stdout]   | ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "8950ba4b4c29b71dc34ae5ddaecfadfd9781e2da5667ecb7146ce9f7641b1302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8950ba4b4c29b71dc34ae5ddaecfadfd9781e2da5667ecb7146ce9f7641b1302", kill_on_drop: false }`
[INFO] [stdout] 8950ba4b4c29b71dc34ae5ddaecfadfd9781e2da5667ecb7146ce9f7641b1302
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ac7979fce45601441c7d00e7c36b68e60302d2acb609b21f8d447b7d5644d004
[INFO] running `Command { std: "docker" "start" "-a" "ac7979fce45601441c7d00e7c36b68e60302d2acb609b21f8d447b7d5644d004", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `challenge_render_pipeline`
[INFO] [stderr]    --> src/state.rs:127:13
[INFO] [stderr]     |
[INFO] [stderr] 127 |         let challenge_render_pipeline = device.create_render_pipeline(
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_challenge_render_pipeline`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]  --> src/vertex.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Vertex {
[INFO] [stderr]   |            ^^^^^^ field in this struct
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing this field
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `check` is never used
[INFO] [stderr]  --> src/vertex.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #[repr(C)]
[INFO] [stderr]   | ^
[INFO] [stderr] 
[INFO] [stderr] warning: `learn-wgpu` (bin "learn-wgpu" test) generated 3 warnings (run `cargo fix --bin "learn-wgpu" -p learn-wgpu --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/learn_wgpu-08ef9e721f0e1758)
[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" "ac7979fce45601441c7d00e7c36b68e60302d2acb609b21f8d447b7d5644d004", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac7979fce45601441c7d00e7c36b68e60302d2acb609b21f8d447b7d5644d004", kill_on_drop: false }`
[INFO] [stdout] ac7979fce45601441c7d00e7c36b68e60302d2acb609b21f8d447b7d5644d004
