Dec 12 06:26:31.585 INFO checking tensor-0.1.2 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 06:26:31.585 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 06:26:32.110 INFO [stdout] bfd3f700ea2c340bb3086ea6c2d767404f87fe20ddd5dc2f7a51aa2974d844ee
Dec 12 06:26:32.112 INFO running `"docker" "start" "-a" "bfd3f700ea2c340bb3086ea6c2d767404f87fe20ddd5dc2f7a51aa2974d844ee"`
Dec 12 06:26:34.280 INFO [stderr] usermod: no changes
Dec 12 06:26:34.424 INFO [stderr]     Checking tensor v0.1.2 (/source)
Dec 12 06:26:36.047 INFO [stderr] warning: variable does not need to be mutable
Dec 12 06:26:36.047 INFO [stderr]   --> src/tensor.rs:67:13
Dec 12 06:26:36.047 INFO [stderr]    |
Dec 12 06:26:36.047 INFO [stderr] 67 |         let mut new_tensor = &mut Tensor::build(self.dim, new_rank, vec![T::zero(); len]);
Dec 12 06:26:36.047 INFO [stderr]    |             ----^^^^^^^^^^
Dec 12 06:26:36.047 INFO [stderr]    |             |
Dec 12 06:26:36.047 INFO [stderr]    |             help: remove this `mut`
Dec 12 06:26:36.047 INFO [stderr]    |
Dec 12 06:26:36.047 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 06:26:36.047 INFO [stderr] 
Dec 12 06:26:36.860 INFO [stderr] warning: variable does not need to be mutable
Dec 12 06:26:36.860 INFO [stderr]   --> src/tensor.rs:67:13
Dec 12 06:26:36.860 INFO [stderr]    |
Dec 12 06:26:36.860 INFO [stderr] 67 |         let mut new_tensor = &mut Tensor::build(self.dim, new_rank, vec![T::zero(); len]);
Dec 12 06:26:36.860 INFO [stderr]    |             ----^^^^^^^^^^
Dec 12 06:26:36.860 INFO [stderr]    |             |
Dec 12 06:26:36.860 INFO [stderr]    |             help: remove this `mut`
Dec 12 06:26:36.860 INFO [stderr]    |
Dec 12 06:26:36.860 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 06:26:36.860 INFO [stderr] 
Dec 12 06:26:38.368 INFO [stderr] warning: variable does not need to be mutable
Dec 12 06:26:38.368 INFO [stderr]   --> src/tensor.rs:67:13
Dec 12 06:26:38.368 INFO [stderr]    |
Dec 12 06:26:38.368 INFO [stderr] 67 |         let mut new_tensor = &mut Tensor::build(self.dim, new_rank, vec![T::zero(); len]);
Dec 12 06:26:38.368 INFO [stderr]    |             ----^^^^^^^^^^
Dec 12 06:26:38.368 INFO [stderr]    |             |
Dec 12 06:26:38.368 INFO [stderr]    |             help: remove this `mut`
Dec 12 06:26:38.368 INFO [stderr]    |
Dec 12 06:26:38.368 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 06:26:38.368 INFO [stderr] 
Dec 12 06:26:38.652 INFO [stderr] warning: variable does not need to be mutable
Dec 12 06:26:38.652 INFO [stderr]   --> src/tensor.rs:67:13
Dec 12 06:26:38.652 INFO [stderr]    |
Dec 12 06:26:38.652 INFO [stderr] 67 |         let mut new_tensor = &mut Tensor::build(self.dim, new_rank, vec![T::zero(); len]);
Dec 12 06:26:38.652 INFO [stderr]    |             ----^^^^^^^^^^
Dec 12 06:26:38.652 INFO [stderr]    |             |
Dec 12 06:26:38.652 INFO [stderr]    |             help: remove this `mut`
Dec 12 06:26:38.652 INFO [stderr]    |
Dec 12 06:26:38.652 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 06:26:38.652 INFO [stderr] 
Dec 12 06:26:38.700 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.40s
Dec 12 06:26:38.717 INFO [stderr] su: No module specific data is present
Dec 12 06:26:39.610 INFO running `"docker" "inspect" "bfd3f700ea2c340bb3086ea6c2d767404f87fe20ddd5dc2f7a51aa2974d844ee"`
Dec 12 06:26:40.008 INFO running `"docker" "rm" "-f" "bfd3f700ea2c340bb3086ea6c2d767404f87fe20ddd5dc2f7a51aa2974d844ee"`
Dec 12 06:26:40.388 INFO [stdout] bfd3f700ea2c340bb3086ea6c2d767404f87fe20ddd5dc2f7a51aa2974d844ee