[INFO] updating cached repository tomtung/parabel-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tomtung/parabel-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tomtung/parabel-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/tomtung/parabel-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/tomtung/parabel-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tomtung/parabel-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tomtung/parabel-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tomtung/parabel-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c367075a1defbbecc9b6e66a34720e89db920840
[INFO] sha for GitHub repo tomtung/parabel-rs: c367075a1defbbecc9b6e66a34720e89db920840
[INFO] validating manifest of tomtung/parabel-rs on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tomtung/parabel-rs on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tomtung/parabel-rs
[INFO] finished frobbing tomtung/parabel-rs
[INFO] frobbed toml for tomtung/parabel-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/tomtung/parabel-rs/Cargo.toml
[INFO] started frobbing tomtung/parabel-rs
[INFO] finished frobbing tomtung/parabel-rs
[INFO] frobbed toml for tomtung/parabel-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tomtung/parabel-rs/Cargo.toml
[INFO] crate tomtung/parabel-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing tomtung/parabel-rs against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tomtung/parabel-rs:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] bf9c95e8c013774e775d9d402af7a87131b1ade06688e96a0029fd4c91c61f93
[INFO] running `"docker" "start" "-a" "bf9c95e8c013774e775d9d402af7a87131b1ade06688e96a0029fd4c91c61f93"`
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]    Compiling derive_builder v0.7.1
[INFO] [stderr]    Compiling bit-vec v0.5.0
[INFO] [stderr]    Compiling order-stat v0.1.3
[INFO] [stderr]    Compiling bincode v1.1.2
[INFO] [stderr]    Compiling hashbrown v0.1.8
[INFO] [stderr]    Compiling pbr v1.0.1
[INFO] [stderr]    Compiling alga v0.5.4
[INFO] [stderr]    Compiling bit-set v0.5.0
[INFO] [stderr]    Compiling darling_core v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]    Compiling darling_macro v0.8.5
[INFO] [stderr]    Compiling darling v0.8.5
[INFO] [stderr]    Compiling derive_builder_core v0.4.1
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling 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]    Compiling parabel v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 37s
[INFO] running `"docker" "inspect" "bf9c95e8c013774e775d9d402af7a87131b1ade06688e96a0029fd4c91c61f93"`
[INFO] running `"docker" "rm" "-f" "bf9c95e8c013774e775d9d402af7a87131b1ade06688e96a0029fd4c91c61f93"`
[INFO] [stdout] bf9c95e8c013774e775d9d402af7a87131b1ade06688e96a0029fd4c91c61f93
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tomtung/parabel-rs:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 67e66d228507df9ff6ca3210ecb17ce6fb37c55343bb3c89255779556e1859d6
[INFO] running `"docker" "start" "-a" "67e66d228507df9ff6ca3210ecb17ce6fb37c55343bb3c89255779556e1859d6"`
[INFO] [stderr]    Compiling assert_approx_eq v1.1.0
[INFO] [stderr]    Compiling parabel v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.71s
[INFO] running `"docker" "inspect" "67e66d228507df9ff6ca3210ecb17ce6fb37c55343bb3c89255779556e1859d6"`
[INFO] running `"docker" "rm" "-f" "67e66d228507df9ff6ca3210ecb17ce6fb37c55343bb3c89255779556e1859d6"`
[INFO] [stdout] 67e66d228507df9ff6ca3210ecb17ce6fb37c55343bb3c89255779556e1859d6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/tomtung/parabel-rs:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] a4fd5486c8a38cd68f0c2efb5f8996dfb52730b5088ae633cf29061ceecd77b6
[INFO] running `"docker" "start" "-a" "a4fd5486c8a38cd68f0c2efb5f8996dfb52730b5088ae633cf29061ceecd77b6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/parabel-ca02909b96a803c5
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test mat_util::tests::test_copy_outer_dims ... ok
[INFO] [stdout] test mat_util::tests::test_copy_to_csrmat ... ok
[INFO] [stdout] test mat_util::tests::test_dense_add_assign_csvec_mul_scalar ... ok
[INFO] [stdout] test data::tests::test_parse_xc_repo_data_line ... ok
[INFO] [stdout] test mat_util::tests::test_dense_vec_l2_normalize ... ok
[INFO] [stdout] test mat_util::tests::test_dense_add_assign_csvec ... ok
[INFO] [stdout] test mat_util::tests::test_shrink_column_indices ... ok
[INFO] [stdout] test mat_util::tests::test_sort_by_index ... ok
[INFO] [stdout] test mat_util::tests::test_remap_column_indices ... ok
[INFO] [stdout] test mat_util::tests::test_prune_with_threshold ... ok
[INFO] [stdout] test mat_util::tests::test_l2_normalize ... ok
[INFO] [stdout] test model::cluster::tests::test_balanced_2means ... ok
[INFO] [stderr]    Doc-tests parabel
[INFO] [stdout] test mat_util::tests::test_is_valid_sparse_vec ... ok
[INFO] [stdout] test model::cluster::tests::test_balanced_2means_iterate ... ok
[INFO] [stdout] test model::train::tests::test_compute_label_centroids ... ok
[INFO] [stdout] test model::train::tests::test_compute_tree_height ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "a4fd5486c8a38cd68f0c2efb5f8996dfb52730b5088ae633cf29061ceecd77b6"`
[INFO] running `"docker" "rm" "-f" "a4fd5486c8a38cd68f0c2efb5f8996dfb52730b5088ae633cf29061ceecd77b6"`
[INFO] [stdout] a4fd5486c8a38cd68f0c2efb5f8996dfb52730b5088ae633cf29061ceecd77b6