[INFO] updating cached repository cowlet/lines
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cowlet/lines
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cowlet/lines" "work/ex/beta-1.37-6/sources/1.36.0/gh/cowlet/lines"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/cowlet/lines'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cowlet/lines" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/cowlet/lines"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/cowlet/lines'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a1431763f6db80fed29ddce87849f0536e8f4d52
[INFO] sha for GitHub repo cowlet/lines: a1431763f6db80fed29ddce87849f0536e8f4d52
[INFO] validating manifest of cowlet/lines on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cowlet/lines on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cowlet/lines
[INFO] finished frobbing cowlet/lines
[INFO] frobbed toml for cowlet/lines written to work/ex/beta-1.37-6/sources/1.36.0/gh/cowlet/lines/Cargo.toml
[INFO] started frobbing cowlet/lines
[INFO] finished frobbing cowlet/lines
[INFO] frobbed toml for cowlet/lines written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/cowlet/lines/Cargo.toml
[INFO] crate cowlet/lines already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/cowlet/lines/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/xasmx/rust-la`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/xasmx/rust-la`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing cowlet/lines against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/cowlet/lines:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 85b432bd5a7c5f648ff1bc47bbe8a08214ed4319b1ef28577878eb147319cb6b
[INFO] running `"docker" "start" "-a" "85b432bd5a7c5f648ff1bc47bbe8a08214ed4319b1ef28577878eb147319cb6b"`
[INFO] [stderr]    Compiling gnuplot v0.0.20
[INFO] [stderr]    Compiling la v0.2.0 (https://github.com/xasmx/rust-la?rev=b475844#b4758445)
[INFO] [stderr]    Compiling lines v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use] extern crate la;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.88s
[INFO] running `"docker" "inspect" "85b432bd5a7c5f648ff1bc47bbe8a08214ed4319b1ef28577878eb147319cb6b"`
[INFO] running `"docker" "rm" "-f" "85b432bd5a7c5f648ff1bc47bbe8a08214ed4319b1ef28577878eb147319cb6b"`
[INFO] [stdout] 85b432bd5a7c5f648ff1bc47bbe8a08214ed4319b1ef28577878eb147319cb6b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/cowlet/lines:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 71e827dc286ed7201fabc78d73ed2dfc10dfa57deb806e43ef80a2a676614596
[INFO] running `"docker" "start" "-a" "71e827dc286ed7201fabc78d73ed2dfc10dfa57deb806e43ef80a2a676614596"`
[INFO] [stderr]    Compiling lines v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `"docker" "inspect" "71e827dc286ed7201fabc78d73ed2dfc10dfa57deb806e43ef80a2a676614596"`
[INFO] running `"docker" "rm" "-f" "71e827dc286ed7201fabc78d73ed2dfc10dfa57deb806e43ef80a2a676614596"`
[INFO] [stdout] 71e827dc286ed7201fabc78d73ed2dfc10dfa57deb806e43ef80a2a676614596
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/cowlet/lines:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 74ad24fb1add32ea6c651966b8848727b538acec207b4f33339fd4dfa2ab54b1
[INFO] running `"docker" "start" "-a" "74ad24fb1add32ea6c651966b8848727b538acec207b4f33339fd4dfa2ab54b1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lines-6e841434626becdb
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::create_matrices ... ok
[INFO] [stdout] test tests::test_col_concat ... ok
[INFO] [stdout] test tests::test_row_iter ... ok
[INFO] [stdout] test tests::test_col_iter ... ok
[INFO] [stdout] test tests::test_row_concat ... ok
[INFO] [stdout] test tests::test_get_rows ... ok
[INFO] [stdout] test tests::test_svd ... ok
[INFO] [stdout] test tests::test_row_concat_wrong_dimensions ... ok
[INFO] [stdout] test tests::test_col_concat_wrong_dimensions ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "74ad24fb1add32ea6c651966b8848727b538acec207b4f33339fd4dfa2ab54b1"`
[INFO] running `"docker" "rm" "-f" "74ad24fb1add32ea6c651966b8848727b538acec207b4f33339fd4dfa2ab54b1"`
[INFO] [stdout] 74ad24fb1add32ea6c651966b8848727b538acec207b4f33339fd4dfa2ab54b1