[INFO] updating cached repository https://github.com/okayplanet/tensor
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8b75e77f52996ff88fa205ef4b5c50a1997f5eb5
[INFO] testing okayplanet/tensor against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fokayplanet%2Ftensor" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/okayplanet/tensor on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/okayplanet/tensor
[INFO] finished tweaking git repo https://github.com/okayplanet/tensor
[INFO] tweaked toml for git repo https://github.com/okayplanet/tensor written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/okayplanet/tensor already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /big/crater/work/builds/worker-7/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] fbf7e366123dd153ed8ccf92fb32198330fd4f835bc0b9aba5d1a21d6cc443a9
[INFO] running `"docker" "start" "-a" "fbf7e366123dd153ed8ccf92fb32198330fd4f835bc0b9aba5d1a21d6cc443a9"`
[INFO] [stderr]    Compiling tensor v0.1.2 (/opt/rustwide/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]     Finished dev [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `"docker" "inspect" "fbf7e366123dd153ed8ccf92fb32198330fd4f835bc0b9aba5d1a21d6cc443a9"`
[INFO] running `"docker" "rm" "-f" "fbf7e366123dd153ed8ccf92fb32198330fd4f835bc0b9aba5d1a21d6cc443a9"`
[INFO] [stdout] fbf7e366123dd153ed8ccf92fb32198330fd4f835bc0b9aba5d1a21d6cc443a9
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7e456932d44d4caeae8320d4dfa2aaff563a880ae3d1cd97e773d069a7fd3441
[INFO] running `"docker" "start" "-a" "7e456932d44d4caeae8320d4dfa2aaff563a880ae3d1cd97e773d069a7fd3441"`
[INFO] [stderr]    Compiling tensor v0.1.2 (/opt/rustwide/workdir)
[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 0.93s
[INFO] running `"docker" "inspect" "7e456932d44d4caeae8320d4dfa2aaff563a880ae3d1cd97e773d069a7fd3441"`
[INFO] running `"docker" "rm" "-f" "7e456932d44d4caeae8320d4dfa2aaff563a880ae3d1cd97e773d069a7fd3441"`
[INFO] [stdout] 7e456932d44d4caeae8320d4dfa2aaff563a880ae3d1cd97e773d069a7fd3441
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 87a1032135d16a46e53427c307e2a561d533b16c012b4995cb5ee297b1a122a8
[INFO] running `"docker" "start" "-a" "87a1032135d16a46e53427c307e2a561d533b16c012b4995cb5ee297b1a122a8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tensor-2990ecfa9dc8d0e4
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tensor-493d4b5fd0c2978b
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lib-d2564b2d5c3ad031
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test inner_product ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tensor
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "87a1032135d16a46e53427c307e2a561d533b16c012b4995cb5ee297b1a122a8"`
[INFO] running `"docker" "rm" "-f" "87a1032135d16a46e53427c307e2a561d533b16c012b4995cb5ee297b1a122a8"`
[INFO] [stdout] 87a1032135d16a46e53427c307e2a561d533b16c012b4995cb5ee297b1a122a8