[INFO] cloning repository https://github.com/cchudant/matmul
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cchudant/matmul" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcchudant%2Fmatmul", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcchudant%2Fmatmul'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db6683370612eb6b9be9dd1c1aaf292cdffe6e0e
[INFO] checking cchudant/matmul/db6683370612eb6b9be9dd1c1aaf292cdffe6e0e against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcchudant%2Fmatmul" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cchudant/matmul on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cchudant/matmul
[INFO] finished tweaking git repo https://github.com/cchudant/matmul
[INFO] tweaked toml for git repo https://github.com/cchudant/matmul written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cchudant/matmul 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded windows-targets v0.48.1
[INFO] [stderr]   Downloaded rawpointer v0.2.1
[INFO] [stderr]   Downloaded unarray v0.1.4
[INFO] [stderr]   Downloaded bitfield v0.14.0
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[INFO] [stderr]   Downloaded num-integer v0.1.45
[INFO] [stderr]   Downloaded anyhow v1.0.71
[INFO] [stderr]   Downloaded bitflags v2.3.3
[INFO] [stderr]   Downloaded serde v1.0.166
[INFO] [stderr]   Downloaded num-bigint v0.4.3
[INFO] [stderr]   Downloaded libm v0.2.7
[INFO] [stderr]   Downloaded minijinja v1.0.3
[INFO] [stderr]   Downloaded half v2.3.1
[INFO] [stderr]   Downloaded matrixmultiply v0.3.7
[INFO] [stderr]   Downloaded rustix v0.37.23
[INFO] [stderr]   Downloaded proptest v1.2.0
[INFO] [stderr]   Downloaded num-complex v0.4.3
[INFO] [stderr]   Downloaded ndarray v0.15.6
[INFO] [stderr]   Downloaded proptest-derive v0.3.0
[INFO] [stderr]   Downloaded io-lifetimes v1.0.11
[INFO] [stderr]   Downloaded tempfile v3.6.0
[INFO] [stderr]   Downloaded hermit-abi v0.3.2
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[INFO] [stderr]   Downloaded rusty-fork v0.3.0
[INFO] [stderr]   Downloaded libc v0.2.147
[INFO] [stderr]   Downloaded linux-raw-sys v0.3.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 31fe7f7e90a0179175edfe3818cc39e517f233afc6aa265dbff1cd642dd52f42
[INFO] running `Command { std: "docker" "start" "-a" "31fe7f7e90a0179175edfe3818cc39e517f233afc6aa265dbff1cd642dd52f42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31fe7f7e90a0179175edfe3818cc39e517f233afc6aa265dbff1cd642dd52f42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31fe7f7e90a0179175edfe3818cc39e517f233afc6aa265dbff1cd642dd52f42", kill_on_drop: false }`
[INFO] [stdout] 31fe7f7e90a0179175edfe3818cc39e517f233afc6aa265dbff1cd642dd52f42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 914e60e07804e1a8ab2d4b53cfeb3f98678e575ba7d5938901d590eda99df014
[INFO] running `Command { std: "docker" "start" "-a" "914e60e07804e1a8ab2d4b53cfeb3f98678e575ba7d5938901d590eda99df014", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling serde v1.0.166
[INFO] [stderr]    Compiling rustix v0.37.23
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking half v2.3.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking bitfield v0.14.0
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling tempfile v3.6.0
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling matrixmultiply v0.3.7
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking num-complex v0.4.3
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling minijinja v1.0.3
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking proptest v1.2.0
[INFO] [stderr]    Compiling proptest-derive v0.3.0
[INFO] [stderr]    Compiling test_attn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `a_ty`, `b_ty`, `c_ty`, and `align_contig_to` are never read
[INFO] [stdout]   --> build.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct GemmKernel {
[INFO] [stdout]    |        ---------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 41 |     a_ty: &'static str,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 42 |     b_ty: &'static str,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 43 |     c_ty: &'static str,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 44 |     align_contig_to: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GemmKernel` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Array2`, `Array`, `Dimension`, `Ix2`, and `OwnedRepr`
[INFO] [stdout]  --> src/gemm.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ndarray::{Array, Array2, Dimension, Ix2, OwnedRepr};
[INFO] [stdout]   |               ^^^^^  ^^^^^^  ^^^^^^^^^  ^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::integer::div_ceil`
[INFO] [stdout]  --> src/gemm.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use num::integer::div_ceil;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MaybeUninit`, `default`, `null_mut`, and `null`
[INFO] [stdout]  --> src/gemm.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     default,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 6 |     fmt::{Debug, Display},
[INFO] [stdout] 7 |     mem::{size_of, MaybeUninit},
[INFO] [stdout]   |                    ^^^^^^^^^^^
[INFO] [stdout] 8 |     ops::{Add, Mul},
[INFO] [stdout] 9 |     ptr::{null, null_mut},
[INFO] [stdout]   |           ^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::extern_kernels`
[INFO] [stdout]   --> src/gemm.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::extern_kernels;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Array2`, `Array`, `Dimension`, `Ix2`, and `OwnedRepr`
[INFO] [stdout]  --> src/gemm.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ndarray::{Array, Array2, Dimension, Ix2, OwnedRepr};
[INFO] [stdout]   |               ^^^^^  ^^^^^^  ^^^^^^^^^  ^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::integer::div_ceil`
[INFO] [stdout]  --> src/gemm.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use num::integer::div_ceil;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MaybeUninit`, `default`, `null_mut`, and `null`
[INFO] [stdout]  --> src/gemm.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     default,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 6 |     fmt::{Debug, Display},
[INFO] [stdout] 7 |     mem::{size_of, MaybeUninit},
[INFO] [stdout]   |                    ^^^^^^^^^^^
[INFO] [stdout] 8 |     ops::{Add, Mul},
[INFO] [stdout] 9 |     ptr::{null, null_mut},
[INFO] [stdout]   |           ^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::extern_kernels`
[INFO] [stdout]   --> src/gemm.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::extern_kernels;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.68s
[INFO] running `Command { std: "docker" "inspect" "914e60e07804e1a8ab2d4b53cfeb3f98678e575ba7d5938901d590eda99df014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "914e60e07804e1a8ab2d4b53cfeb3f98678e575ba7d5938901d590eda99df014", kill_on_drop: false }`
[INFO] [stdout] 914e60e07804e1a8ab2d4b53cfeb3f98678e575ba7d5938901d590eda99df014