[INFO] cloning repository RuneBlaze/kmer_vec
[INFO] running `"git" "clone" "--bare" "git://github.com/RuneBlaze/kmer_vec.git" "work/cache/sources/gh/RuneBlaze/kmer_vec"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/RuneBlaze/kmer_vec'...
[INFO] running `"git" "clone" "work/cache/sources/gh/RuneBlaze/kmer_vec" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/RuneBlaze/kmer_vec"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/RuneBlaze/kmer_vec'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/RuneBlaze/kmer_vec" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/RuneBlaze/kmer_vec"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/RuneBlaze/kmer_vec'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 04a6cc6e1d62a1f79204b412cc34845fc3d52cc4
[INFO] sha for GitHub repo RuneBlaze/kmer_vec: 04a6cc6e1d62a1f79204b412cc34845fc3d52cc4
[INFO] validating manifest of RuneBlaze/kmer_vec on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of RuneBlaze/kmer_vec on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing RuneBlaze/kmer_vec
[INFO] finished frobbing RuneBlaze/kmer_vec
[INFO] frobbed toml for RuneBlaze/kmer_vec written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/RuneBlaze/kmer_vec/Cargo.toml
[INFO] started frobbing RuneBlaze/kmer_vec
[INFO] finished frobbing RuneBlaze/kmer_vec
[INFO] frobbed toml for RuneBlaze/kmer_vec written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/RuneBlaze/kmer_vec/Cargo.toml
[INFO] crate RuneBlaze/kmer_vec already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking RuneBlaze/kmer_vec against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-3/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/RuneBlaze/kmer_vec:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] da9717b62e2c1461bf04cfb2b3633dec0d596a7157bc0576117c2d2a6d4ac6b6
[INFO] running `"docker" "start" "-a" "da9717b62e2c1461bf04cfb2b3633dec0d596a7157bc0576117c2d2a6d4ac6b6"`
[INFO] [stderr]    Compiling mashup-impl v0.1.9
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]     Checking alga v0.5.4
[INFO] [stderr]     Checking ndarray v0.12.1
[INFO] [stderr]    Compiling pyo3 v0.6.0
[INFO] [stderr]     Checking mashup v0.1.9
[INFO] [stderr]    Compiling inventory-impl v0.1.3
[INFO] [stderr]    Compiling pyo3-derive-backend v0.6.0
[INFO] [stderr]    Compiling ghost v0.1.0
[INFO] [stderr]    Compiling ctor v0.1.9
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]     Checking inventory v0.1.3
[INFO] [stderr]    Compiling pyo3cls v0.6.0
[INFO] [stderr]     Checking sprs v0.6.4
[INFO] [stderr] warning[E0502]: cannot borrow `indptr` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/sprs-0.6.4/src/sparse/triplet_iter.rs:122:26
[INFO] [stderr]     |
[INFO] [stderr] 122 |             indptr[i] += indptr[i - 1];
[INFO] [stderr]     |             -------------^^^^^^-------
[INFO] [stderr]     |             |            |
[INFO] [stderr]     |             |            immutable borrow occurs here
[INFO] [stderr]     |             mutable borrow occurs here
[INFO] [stderr]     |             mutable borrow later used here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]     Checking kmer_vec v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::ops::Add`
[INFO] [stderr]  --> src/lib.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::ops::Add;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Add`
[INFO] [stderr]  --> src/lib.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::ops::Add;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `py`
[INFO] [stderr]   --> src/lib.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 | fn kmer_vec(py: Python, m: &PyModule) -> PyResult<()> {
[INFO] [stderr]    |             ^^ help: consider prefixing with an underscore: `_py`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `py`
[INFO] [stderr]   --> src/lib.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 | fn kmer_vec(py: Python, m: &PyModule) -> PyResult<()> {
[INFO] [stderr]    |             ^^ help: consider prefixing with an underscore: `_py`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 22s
[INFO] running `"docker" "inspect" "da9717b62e2c1461bf04cfb2b3633dec0d596a7157bc0576117c2d2a6d4ac6b6"`
[INFO] running `"docker" "rm" "-f" "da9717b62e2c1461bf04cfb2b3633dec0d596a7157bc0576117c2d2a6d4ac6b6"`
[INFO] [stdout] da9717b62e2c1461bf04cfb2b3633dec0d596a7157bc0576117c2d2a6d4ac6b6