[INFO] updating cached repository okayplanet/tensor
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/okayplanet/tensor
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/okayplanet/tensor" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/okayplanet/tensor"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/okayplanet/tensor'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/okayplanet/tensor" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/okayplanet/tensor"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/okayplanet/tensor'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8b75e77f52996ff88fa205ef4b5c50a1997f5eb5
[INFO] sha for GitHub repo okayplanet/tensor: 8b75e77f52996ff88fa205ef4b5c50a1997f5eb5
[INFO] validating manifest of okayplanet/tensor on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of okayplanet/tensor on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing okayplanet/tensor
[INFO] finished frobbing okayplanet/tensor
[INFO] frobbed toml for okayplanet/tensor written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/okayplanet/tensor/Cargo.toml
[INFO] started frobbing okayplanet/tensor
[INFO] finished frobbing okayplanet/tensor
[INFO] frobbed toml for okayplanet/tensor written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/okayplanet/tensor/Cargo.toml
[INFO] crate okayplanet/tensor already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/okayplanet/tensor/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking okayplanet/tensor against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-4/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/okayplanet/tensor:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2862043a5fcf76edcec0d81e258b4a63fe468b6066dfa2d1893be21bffdad894
[INFO] running `"docker" "start" "-a" "2862043a5fcf76edcec0d81e258b4a63fe468b6066dfa2d1893be21bffdad894"`
[INFO] [stderr]     Checking tensor v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tensor/mod.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let mut new_tensor = &mut Tensor::build(self.dim, new_rank, vec![T::zero(); len]);
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tensor/mod.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let mut new_tensor = &mut Tensor::build(self.dim, new_rank, vec![T::zero(); len]);
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v2`
[INFO] [stderr]   --> tests/lib.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let v2 = v1.inner_product(&v1);
[INFO] [stderr]    |         ^^ help: consider prefixing with an underscore: `_v2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v1_dot_v1`
[INFO] [stderr]   --> tests/lib.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let v1_dot_v1 = Tensor::build(1, 0, vec![14]);
[INFO] [stderr]    |         ^^^^^^^^^ help: consider prefixing with an underscore: `_v1_dot_v1`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tensor/mod.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let mut new_tensor = &mut Tensor::build(self.dim, new_rank, vec![T::zero(); len]);
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tensor/mod.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let mut new_tensor = &mut Tensor::build(self.dim, new_rank, vec![T::zero(); len]);
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `"docker" "inspect" "2862043a5fcf76edcec0d81e258b4a63fe468b6066dfa2d1893be21bffdad894"`
[INFO] running `"docker" "rm" "-f" "2862043a5fcf76edcec0d81e258b4a63fe468b6066dfa2d1893be21bffdad894"`
[INFO] [stdout] 2862043a5fcf76edcec0d81e258b4a63fe468b6066dfa2d1893be21bffdad894