[INFO] fetching crate microgemm 0.1.3...
[INFO] checking microgemm-0.1.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate microgemm 0.1.3 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate microgemm 0.1.3 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate microgemm 0.1.3
[INFO] finished tweaking crates.io crate microgemm 0.1.3
[INFO] tweaked toml for crates.io crate microgemm 0.1.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate microgemm 0.1.3 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.37
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.37
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1539d00d02095fc74dcee194a61d3725aac9eca0842a5917af31083b07c5d7c9
[INFO] running `Command { std: "docker" "start" "-a" "1539d00d02095fc74dcee194a61d3725aac9eca0842a5917af31083b07c5d7c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1539d00d02095fc74dcee194a61d3725aac9eca0842a5917af31083b07c5d7c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1539d00d02095fc74dcee194a61d3725aac9eca0842a5917af31083b07c5d7c9", kill_on_drop: false }`
[INFO] [stdout] 1539d00d02095fc74dcee194a61d3725aac9eca0842a5917af31083b07c5d7c9
[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=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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9f505926dce7595067c13a031d8589c8587bd5951c502b0aa74eaf815a59c59
[INFO] running `Command { std: "docker" "start" "-a" "b9f505926dce7595067c13a031d8589c8587bd5951c502b0aa74eaf815a59c59", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.87
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling bumpalo v3.14.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.87
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling serde v1.0.190
[INFO] [stderr]    Compiling rustix v0.38.21
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking anstyle v1.0.4
[INFO] [stderr]     Checking clap_lex v0.6.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking ciborium-io v0.2.1
[INFO] [stderr]     Checking linux-raw-sys v0.4.10
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking clap_builder v4.4.7
[INFO] [stderr]     Checking walkdir v2.4.0
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking ciborium-ll v0.2.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.37
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking generic-array v1.0.0
[INFO] [stderr]     Checking clap v4.4.7
[INFO] [stderr]     Checking microgemm v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.87
[INFO] [stderr]    Compiling serde_derive v1.0.190
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.87
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.87
[INFO] [stderr]     Checking js-sys v0.3.64
[INFO] [stderr]     Checking console_error_panic_hook v0.1.7
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.37
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.37
[INFO] [stderr]     Checking ciborium v0.2.1
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stdout] warning: the item `Kernel` is imported redundantly
[INFO] [stdout]   --> src/kernels/generic.rs:88:27
[INFO] [stdout]    |
[INFO] [stdout] 87 |     use super::*;
[INFO] [stdout]    |         -------- the item `Kernel` is already imported here
[INFO] [stdout] 88 |     use crate::{utils::*, Kernel};
[INFO] [stdout]    |                           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NaiveKernel` is never constructed
[INFO] [stdout]    --> tests/benchmarks.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 104 | struct NaiveKernel;
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.53s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.87
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "b9f505926dce7595067c13a031d8589c8587bd5951c502b0aa74eaf815a59c59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9f505926dce7595067c13a031d8589c8587bd5951c502b0aa74eaf815a59c59", kill_on_drop: false }`
[INFO] [stdout] b9f505926dce7595067c13a031d8589c8587bd5951c502b0aa74eaf815a59c59
[INFO] checking microgemm-0.1.3 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate microgemm 0.1.3 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate microgemm 0.1.3 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate microgemm 0.1.3
[INFO] finished tweaking crates.io crate microgemm 0.1.3
[INFO] tweaked toml for crates.io crate microgemm 0.1.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate microgemm 0.1.3 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf87da3be0b2114bc96201f3ba1a89403bf9e9c98cbf806468d87147e5f71314
[INFO] running `Command { std: "docker" "start" "-a" "bf87da3be0b2114bc96201f3ba1a89403bf9e9c98cbf806468d87147e5f71314", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf87da3be0b2114bc96201f3ba1a89403bf9e9c98cbf806468d87147e5f71314", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf87da3be0b2114bc96201f3ba1a89403bf9e9c98cbf806468d87147e5f71314", kill_on_drop: false }`
[INFO] [stdout] bf87da3be0b2114bc96201f3ba1a89403bf9e9c98cbf806468d87147e5f71314
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8610bf5458f77898f5d79868eb18bcf385dac4c1c0c8be6dadcb05ddf9154cb9
[INFO] running `Command { std: "docker" "start" "-a" "8610bf5458f77898f5d79868eb18bcf385dac4c1c0c8be6dadcb05ddf9154cb9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.87
[INFO] [stderr]    Compiling bumpalo v3.14.0
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling serde v1.0.190
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling wasm-bindgen v0.2.87
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]    Compiling rustix v0.38.21
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]     Checking anstyle v1.0.4
[INFO] [stderr]     Checking linux-raw-sys v0.4.10
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking ciborium-io v0.2.1
[INFO] [stderr]     Checking clap_lex v0.6.0
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking walkdir v2.4.0
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking clap_builder v4.4.7
[INFO] [stderr]     Checking ciborium-ll v0.2.1
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.37
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking generic-array v1.0.0
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking clap v4.4.7
[INFO] [stderr]     Checking microgemm v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.87
[INFO] [stderr]    Compiling serde_derive v1.0.190
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.87
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.87
[INFO] [stderr]     Checking js-sys v0.3.64
[INFO] [stderr]     Checking console_error_panic_hook v0.1.7
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.37
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.37
[INFO] [stderr]     Checking ciborium v0.2.1
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stdout] warning: the item `Kernel` is imported redundantly
[INFO] [stdout]   --> src/kernels/generic.rs:88:27
[INFO] [stdout]    |
[INFO] [stdout] 87 |     use super::*;
[INFO] [stdout]    |         -------- the item `Kernel` is already imported here
[INFO] [stdout] 88 |     use crate::{utils::*, Kernel};
[INFO] [stdout]    |                           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NaiveKernel` is never constructed
[INFO] [stdout]    --> tests/benchmarks.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 104 | struct NaiveKernel;
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.04s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.87
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "8610bf5458f77898f5d79868eb18bcf385dac4c1c0c8be6dadcb05ddf9154cb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8610bf5458f77898f5d79868eb18bcf385dac4c1c0c8be6dadcb05ddf9154cb9", kill_on_drop: false }`
[INFO] [stdout] 8610bf5458f77898f5d79868eb18bcf385dac4c1c0c8be6dadcb05ddf9154cb9