[INFO] updating cached repository korpiq/rust_json_parser
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/korpiq/rust_json_parser
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/korpiq/rust_json_parser" "work/ex/beta-1.38-1/sources/1.37.0/gh/korpiq/rust_json_parser"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/korpiq/rust_json_parser'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/korpiq/rust_json_parser" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/korpiq/rust_json_parser"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/korpiq/rust_json_parser'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6feceb98d0d48d4fb6e547a25a6066d400053721
[INFO] sha for GitHub repo korpiq/rust_json_parser: 6feceb98d0d48d4fb6e547a25a6066d400053721
[INFO] validating manifest of korpiq/rust_json_parser 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 korpiq/rust_json_parser 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 korpiq/rust_json_parser
[INFO] finished frobbing korpiq/rust_json_parser
[INFO] frobbed toml for korpiq/rust_json_parser written to work/ex/beta-1.38-1/sources/1.37.0/gh/korpiq/rust_json_parser/Cargo.toml
[INFO] started frobbing korpiq/rust_json_parser
[INFO] finished frobbing korpiq/rust_json_parser
[INFO] frobbed toml for korpiq/rust_json_parser written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/korpiq/rust_json_parser/Cargo.toml
[INFO] crate korpiq/rust_json_parser 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing korpiq/rust_json_parser 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/korpiq/rust_json_parser:/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] e5c378aeb581cd5167444c544268e8bfdeabc9635d179e27baeb7256d4dc6953
[INFO] running `"docker" "start" "-a" "e5c378aeb581cd5167444c544268e8bfdeabc9635d179e27baeb7256d4dc6953"`
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling memchr v2.1.3
[INFO] [stderr]    Compiling circular v0.2.0
[INFO] [stderr]    Compiling nom v4.2.0
[INFO] [stderr]    Compiling json_parser v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `from_str`
[INFO] [stderr]   --> src/json/mod.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn from_str(json : &str) -> JsonNode {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.97s
[INFO] running `"docker" "inspect" "e5c378aeb581cd5167444c544268e8bfdeabc9635d179e27baeb7256d4dc6953"`
[INFO] running `"docker" "rm" "-f" "e5c378aeb581cd5167444c544268e8bfdeabc9635d179e27baeb7256d4dc6953"`
[INFO] [stdout] e5c378aeb581cd5167444c544268e8bfdeabc9635d179e27baeb7256d4dc6953
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/korpiq/rust_json_parser:/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] 7fdb67bce86cfec2c7b37babc1719d7c134367059cfca77a4d4678808960c6d3
[INFO] running `"docker" "start" "-a" "7fdb67bce86cfec2c7b37babc1719d7c134367059cfca77a4d4678808960c6d3"`
[INFO] [stderr]    Compiling json_parser v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.26s
[INFO] running `"docker" "inspect" "7fdb67bce86cfec2c7b37babc1719d7c134367059cfca77a4d4678808960c6d3"`
[INFO] running `"docker" "rm" "-f" "7fdb67bce86cfec2c7b37babc1719d7c134367059cfca77a4d4678808960c6d3"`
[INFO] [stdout] 7fdb67bce86cfec2c7b37babc1719d7c134367059cfca77a4d4678808960c6d3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/korpiq/rust_json_parser:/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] 5f959ae5acdbbe226a02d5bdebaca166ee12393c99ea46521fa2eef338e5b288
[INFO] running `"docker" "start" "-a" "5f959ae5acdbbe226a02d5bdebaca166ee12393c99ea46521fa2eef338e5b288"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/json_parser-919e3a7c7304dd32
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test json::parser::tests::test_boolean_ok ... ok
[INFO] [stdout] test json::parser::tests::test_empty_list_ok ... ok
[INFO] [stdout] test json::parser::tests::test_empty_object_ok ... ok
[INFO] [stdout] test json::parser::tests::test_empty_string_ok ... ok
[INFO] [stdout] test json::parser::tests::test_null_ok ... ok
[INFO] [stdout] test json::parser::tests::test_number_ok ... ok
[INFO] [stdout] test json::parser::tests::test_escaped_strings_ok ... ok
[INFO] [stdout] test json::parser::tests::test_object_ok ... ok
[INFO] [stdout] test json::parser::tests::test_output_format_ok ... ok
[INFO] [stdout] test json::parser::tests::test_lists_within_lists_ok ... ok
[INFO] [stdout] test json::parser::tests::test_strings_ok ... ok
[INFO] [stdout] test json::parser::tests::test_empty_input_fails ... ok
[INFO] [stdout] test json::parser::tests::test_bad_syntax_input_fails ... ok
[INFO] [stdout] test json::parser::tests::test_list_starting_with_comma_fails ... ok
[INFO] [stdout] test json::parser::tests::test_list_with_a_comma_only_fails ... ok
[INFO] [stdout] test json::parser::tests::test_list_with_extra_comma_fails ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "5f959ae5acdbbe226a02d5bdebaca166ee12393c99ea46521fa2eef338e5b288"`
[INFO] running `"docker" "rm" "-f" "5f959ae5acdbbe226a02d5bdebaca166ee12393c99ea46521fa2eef338e5b288"`
[INFO] [stdout] 5f959ae5acdbbe226a02d5bdebaca166ee12393c99ea46521fa2eef338e5b288