[INFO] cloning repository bartwojcik/vulkano-matmul
[INFO] running `"git" "clone" "--bare" "git://github.com/bartwojcik/vulkano-matmul.git" "work/cache/sources/gh/bartwojcik/vulkano-matmul"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/bartwojcik/vulkano-matmul'...
[INFO] running `"git" "clone" "work/cache/sources/gh/bartwojcik/vulkano-matmul" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/bartwojcik/vulkano-matmul"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/bartwojcik/vulkano-matmul'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bartwojcik/vulkano-matmul" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/bartwojcik/vulkano-matmul"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/bartwojcik/vulkano-matmul'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a3295c1e8cee087febdb87fb06f3b296209cb5dd
[INFO] sha for GitHub repo bartwojcik/vulkano-matmul: a3295c1e8cee087febdb87fb06f3b296209cb5dd
[INFO] validating manifest of bartwojcik/vulkano-matmul on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bartwojcik/vulkano-matmul on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bartwojcik/vulkano-matmul
[INFO] finished frobbing bartwojcik/vulkano-matmul
[INFO] frobbed toml for bartwojcik/vulkano-matmul written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/bartwojcik/vulkano-matmul/Cargo.toml
[INFO] started frobbing bartwojcik/vulkano-matmul
[INFO] finished frobbing bartwojcik/vulkano-matmul
[INFO] frobbed toml for bartwojcik/vulkano-matmul written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/bartwojcik/vulkano-matmul/Cargo.toml
[INFO] crate bartwojcik/vulkano-matmul already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking bartwojcik/vulkano-matmul against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-5/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/bartwojcik/vulkano-matmul:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7217b7ce3c00f4ffa2cb94f95a369363d60cfd1eb4433b3baca08792965f28b4
[INFO] running `"docker" "start" "-a" "7217b7ce3c00f4ffa2cb94f95a369363d60cfd1eb4433b3baca08792965f28b4"`
[INFO] [stderr]    Compiling vulkano v0.7.1
[INFO] [stderr]     Checking vk-sys v0.3.1
[INFO] [stderr]     Checking half v1.0.1
[INFO] [stderr]    Compiling cmake v0.1.25
[INFO] [stderr]    Compiling syn v0.10.8
[INFO] [stderr]     Checking shared_library v0.1.7
[INFO] [stderr]    Compiling glsl-to-spirv v0.1.3
[INFO] [stderr]    Compiling vulkano-shaders v0.7.1
[INFO] [stderr]    Compiling vulkano-shader-derive v0.7.1
[INFO] [stderr]     Checking vulkano_matmul v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let mut c = [0f32; N * M];
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Dummy`
[INFO] [stderr]   --> src/main.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     struct Dummy;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let mut c = [0f32; N * M];
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Dummy`
[INFO] [stderr]   --> src/main.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     struct Dummy;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 49s
[INFO] running `"docker" "inspect" "7217b7ce3c00f4ffa2cb94f95a369363d60cfd1eb4433b3baca08792965f28b4"`
[INFO] running `"docker" "rm" "-f" "7217b7ce3c00f4ffa2cb94f95a369363d60cfd1eb4433b3baca08792965f28b4"`
[INFO] [stdout] 7217b7ce3c00f4ffa2cb94f95a369363d60cfd1eb4433b3baca08792965f28b4