[INFO] fetching crate matrixmultiply 0.3.8...
[INFO] checking matrixmultiply-0.3.8 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate matrixmultiply 0.3.8 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate matrixmultiply 0.3.8 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 matrixmultiply 0.3.8
[INFO] finished tweaking crates.io crate matrixmultiply 0.3.8
[INFO] tweaked toml for crates.io crate matrixmultiply 0.3.8 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate matrixmultiply 0.3.8 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thread-tree v0.3.3
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4df9193b7680bcf5863c34bd9f4059a76bf116026b22fcd19f3f811d8913c330
[INFO] running `Command { std: "docker" "start" "-a" "4df9193b7680bcf5863c34bd9f4059a76bf116026b22fcd19f3f811d8913c330", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4df9193b7680bcf5863c34bd9f4059a76bf116026b22fcd19f3f811d8913c330", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4df9193b7680bcf5863c34bd9f4059a76bf116026b22fcd19f3f811d8913c330", kill_on_drop: false }`
[INFO] [stdout] 4df9193b7680bcf5863c34bd9f4059a76bf116026b22fcd19f3f811d8913c330
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c334b56a98db2253eb6f55e034243a4a76433812e3354255432d0ab3a6d09a21
[INFO] running `Command { std: "docker" "start" "-a" "c334b56a98db2253eb6f55e034243a4a76433812e3354255432d0ab3a6d09a21", kill_on_drop: false }`
[INFO] [stderr]    Compiling matrixmultiply v0.3.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking bencher v0.1.5
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stdout] warning: lint `suspicious_auto_trait_impls` has been removed: no longer needed, see #93367 <https://github.com/rust-lang/rust/issues/93367> for more information
[INFO] [stdout]  --> src/ptr.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![allow(unknown_lints, suspicious_auto_trait_impls)]
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `test_value` is never used
[INFO] [stdout]   --> src/kernel.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub(crate) trait Element : Copy + Send + Sync {
[INFO] [stdout]    |                  ------- associated function in this trait
[INFO] [stdout] ...
[INFO] [stdout] 97 |     fn test_value() -> Self;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `one` is never used
[INFO] [stdout]   --> examples/usegemm.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | trait Float : Copy + Display + Debug + PartialEq {
[INFO] [stdout]    |       ----- associated function in this trait
[INFO] [stdout] 23 |     fn zero() -> Self;
[INFO] [stdout] 24 |     fn one() -> Self;
[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: lint `suspicious_auto_trait_impls` has been removed: no longer needed, see #93367 <https://github.com/rust-lang/rust/issues/93367> for more information
[INFO] [stdout]  --> src/ptr.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![allow(unknown_lints, suspicious_auto_trait_impls)]
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "c334b56a98db2253eb6f55e034243a4a76433812e3354255432d0ab3a6d09a21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c334b56a98db2253eb6f55e034243a4a76433812e3354255432d0ab3a6d09a21", kill_on_drop: false }`
[INFO] [stdout] c334b56a98db2253eb6f55e034243a4a76433812e3354255432d0ab3a6d09a21