[INFO] fetching crate gemm-f16 0.16.15...
[INFO] checking gemm-f16-0.16.15 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate gemm-f16 0.16.15 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate gemm-f16 0.16.15 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gemm-f16 0.16.15
[INFO] finished tweaking crates.io crate gemm-f16 0.16.15
[INFO] tweaked toml for crates.io crate gemm-f16 0.16.15 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 30 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding gemm-common v0.16.15 (latest: v0.17.1)
[INFO] [stderr]       Adding gemm-f32 v0.16.15 (latest: v0.17.1)
[INFO] [stderr]       Adding raw-cpuid v10.7.0 (latest: v11.0.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33319b9289d73e4545fe6afb4da5b9fed6dbaa1f9f7156618b3ca246507f804c
[INFO] running `Command { std: "docker" "start" "-a" "33319b9289d73e4545fe6afb4da5b9fed6dbaa1f9f7156618b3ca246507f804c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33319b9289d73e4545fe6afb4da5b9fed6dbaa1f9f7156618b3ca246507f804c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33319b9289d73e4545fe6afb4da5b9fed6dbaa1f9f7156618b3ca246507f804c", kill_on_drop: false }`
[INFO] [stdout] 33319b9289d73e4545fe6afb4da5b9fed6dbaa1f9f7156618b3ca246507f804c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e71cab5db063c0993e3bdceb50aeb21d1c0d1a959ebca0454c6f0f7e0b18c514
[INFO] running `Command { std: "docker" "start" "-a" "e71cab5db063c0993e3bdceb50aeb21d1c0d1a959ebca0454c6f0f7e0b18c514", kill_on_drop: false }`
[INFO] [stderr]     Checking reborrow v0.5.5
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]    Compiling seq-macro v0.3.5
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling bytemuck_derive v1.6.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking raw-cpuid v10.7.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking bytemuck v1.15.0
[INFO] [stderr]     Checking num-complex v0.4.5
[INFO] [stderr]     Checking half v2.4.0
[INFO] [stderr]     Checking dyn-stack v0.10.0
[INFO] [stderr]     Checking pulp v0.18.9
[INFO] [stderr]     Checking gemm-common v0.16.15
[INFO] [stderr]     Checking gemm-f32 v0.16.15
[INFO] [stderr]     Checking gemm-f16 v0.16.15 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `MixedSimd` is imported redundantly
[INFO] [stdout]   --> src/gemm.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     simd::{MixedSimd, NullaryFnOnce},
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 | use gemm_common::simd::*;
[INFO] [stdout]    |     -------------------- the item `MixedSimd` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `MixedSimd` is imported redundantly
[INFO] [stdout]   --> src/gemm.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     simd::{MixedSimd, NullaryFnOnce},
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 | use gemm_common::simd::*;
[INFO] [stdout]    |     -------------------- the item `MixedSimd` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `NullaryFnOnce` is imported redundantly
[INFO] [stdout]   --> src/gemm.rs:13:23
[INFO] [stdout]    |
[INFO] [stdout] 13 |     simd::{MixedSimd, NullaryFnOnce},
[INFO] [stdout]    |                       ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 | use gemm_common::simd::*;
[INFO] [stdout]    |     -------------------- the item `NullaryFnOnce` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `NullaryFnOnce` is imported redundantly
[INFO] [stdout]   --> src/gemm.rs:13:23
[INFO] [stdout]    |
[INFO] [stdout] 13 |     simd::{MixedSimd, NullaryFnOnce},
[INFO] [stdout]    |                       ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 | use gemm_common::simd::*;
[INFO] [stdout]    |     -------------------- the item `NullaryFnOnce` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.47s
[INFO] running `Command { std: "docker" "inspect" "e71cab5db063c0993e3bdceb50aeb21d1c0d1a959ebca0454c6f0f7e0b18c514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e71cab5db063c0993e3bdceb50aeb21d1c0d1a959ebca0454c6f0f7e0b18c514", kill_on_drop: false }`
[INFO] [stdout] e71cab5db063c0993e3bdceb50aeb21d1c0d1a959ebca0454c6f0f7e0b18c514