[INFO] updating cached repository accidentalrebel/csv-to-json
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/accidentalrebel/csv-to-json
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/accidentalrebel/csv-to-json" "work/ex/beta-1.37-6/sources/1.36.0/gh/accidentalrebel/csv-to-json"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/accidentalrebel/csv-to-json'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/accidentalrebel/csv-to-json" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/accidentalrebel/csv-to-json"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/accidentalrebel/csv-to-json'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7c636f413fbf51b5c334a6c31fbdf2814d028f21
[INFO] sha for GitHub repo accidentalrebel/csv-to-json: 7c636f413fbf51b5c334a6c31fbdf2814d028f21
[INFO] validating manifest of accidentalrebel/csv-to-json 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 accidentalrebel/csv-to-json 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 accidentalrebel/csv-to-json
[INFO] finished frobbing accidentalrebel/csv-to-json
[INFO] frobbed toml for accidentalrebel/csv-to-json written to work/ex/beta-1.37-6/sources/1.36.0/gh/accidentalrebel/csv-to-json/Cargo.toml
[INFO] started frobbing accidentalrebel/csv-to-json
[INFO] finished frobbing accidentalrebel/csv-to-json
[INFO] frobbed toml for accidentalrebel/csv-to-json written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/accidentalrebel/csv-to-json/Cargo.toml
[INFO] crate accidentalrebel/csv-to-json 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing accidentalrebel/csv-to-json against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/accidentalrebel/csv-to-json:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 8bd300bf3e4ee2f9d6337706222ee94595b1f015f148307fe46ef9da3d95676f
[INFO] running `"docker" "start" "-a" "8bd300bf3e4ee2f9d6337706222ee94595b1f015f148307fe46ef9da3d95676f"`
[INFO] [stderr]    Compiling libc v0.2.36
[INFO] [stderr]    Compiling json v0.11.13
[INFO] [stderr]    Compiling getopts v0.2.15
[INFO] [stderr] warning[E0503]: cannot use `state` because it was mutably borrowed
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/getopts-0.2.15/src/lib.rs:1033:33
[INFO] [stderr]      |
[INFO] [stderr] 978  |     let mut machine = |cont: &mut bool, (i, c): (usize, char)| {
[INFO] [stderr]      |                       ---------------------------------------- borrow of `state` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 982  |         state = match (state, whitespace, limit) {
[INFO] [stderr]      |                        ----- borrow occurs due to use of `state` in closure
[INFO] [stderr] ...
[INFO] [stderr] 1033 |     while cont && match state { B | C => true, A => false } {
[INFO] [stderr]      |                                 ^ use of borrowed `state`
[INFO] [stderr] 1034 |         machine(&mut cont, (fake_i, ' '));
[INFO] [stderr]      |         ------- 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 memchr v1.0.2
[INFO] [stderr]    Compiling csv v0.15.0
[INFO] [stderr]    Compiling csv_to_json v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.88s
[INFO] running `"docker" "inspect" "8bd300bf3e4ee2f9d6337706222ee94595b1f015f148307fe46ef9da3d95676f"`
[INFO] running `"docker" "rm" "-f" "8bd300bf3e4ee2f9d6337706222ee94595b1f015f148307fe46ef9da3d95676f"`
[INFO] [stdout] 8bd300bf3e4ee2f9d6337706222ee94595b1f015f148307fe46ef9da3d95676f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/accidentalrebel/csv-to-json:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 263bdfee40029b4c184e3dde56ac20d774373fde045fbb623d81f38cf1a5558e
[INFO] running `"docker" "start" "-a" "263bdfee40029b4c184e3dde56ac20d774373fde045fbb623d81f38cf1a5558e"`
[INFO] [stderr]    Compiling csv_to_json v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `"docker" "inspect" "263bdfee40029b4c184e3dde56ac20d774373fde045fbb623d81f38cf1a5558e"`
[INFO] running `"docker" "rm" "-f" "263bdfee40029b4c184e3dde56ac20d774373fde045fbb623d81f38cf1a5558e"`
[INFO] [stdout] 263bdfee40029b4c184e3dde56ac20d774373fde045fbb623d81f38cf1a5558e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/accidentalrebel/csv-to-json:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 08821fb471d21ea654bcf67dfc0b190db619a4841307bc949e94e23ad37756a7
[INFO] running `"docker" "start" "-a" "08821fb471d21ea654bcf67dfc0b190db619a4841307bc949e94e23ad37756a7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/csv_to_json-84619f69784580e5
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::file_names ... ok
[INFO] [stdout] test tests::get_args_test ... ok
[INFO] [stdout] test tests::updating_json ... ok
[INFO] [stdout] test tests::test_is_not_keyed ... ok
[INFO] [stdout] test tests::test_is_nulled ... ok
[INFO] [stdout] test tests::panic_no_extensions ... ok
[INFO] [stdout] test tests::panic_diff_file_names ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "08821fb471d21ea654bcf67dfc0b190db619a4841307bc949e94e23ad37756a7"`
[INFO] running `"docker" "rm" "-f" "08821fb471d21ea654bcf67dfc0b190db619a4841307bc949e94e23ad37756a7"`
[INFO] [stdout] 08821fb471d21ea654bcf67dfc0b190db619a4841307bc949e94e23ad37756a7