[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-1.37-6/sources/1.36.0/gh/korpiq/rust_json_parser"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/korpiq/rust_json_parser'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/korpiq/rust_json_parser" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/korpiq/rust_json_parser"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of korpiq/rust_json_parser 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 korpiq/rust_json_parser
[INFO] finished frobbing korpiq/rust_json_parser
[INFO] frobbed toml for korpiq/rust_json_parser written to work/ex/beta-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "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 korpiq/rust_json_parser 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/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] a02d8aede45da64969b316fb3c8168cbfdebc48f6d11688e2f4f4fa4cc6f7ab8
[INFO] running `"docker" "start" "-a" "a02d8aede45da64969b316fb3c8168cbfdebc48f6d11688e2f4f4fa4cc6f7ab8"`
[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 8.66s
[INFO] running `"docker" "inspect" "a02d8aede45da64969b316fb3c8168cbfdebc48f6d11688e2f4f4fa4cc6f7ab8"`
[INFO] running `"docker" "rm" "-f" "a02d8aede45da64969b316fb3c8168cbfdebc48f6d11688e2f4f4fa4cc6f7ab8"`
[INFO] [stdout] a02d8aede45da64969b316fb3c8168cbfdebc48f6d11688e2f4f4fa4cc6f7ab8
[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/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 306430792fe94c975164d25ec8bdfedfc9dbdcb0ceb4f94c7db964e25446143c
[INFO] running `"docker" "start" "-a" "306430792fe94c975164d25ec8bdfedfc9dbdcb0ceb4f94c7db964e25446143c"`
[INFO] [stderr]    Compiling json_parser v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.50s
[INFO] running `"docker" "inspect" "306430792fe94c975164d25ec8bdfedfc9dbdcb0ceb4f94c7db964e25446143c"`
[INFO] running `"docker" "rm" "-f" "306430792fe94c975164d25ec8bdfedfc9dbdcb0ceb4f94c7db964e25446143c"`
[INFO] [stdout] 306430792fe94c975164d25ec8bdfedfc9dbdcb0ceb4f94c7db964e25446143c
[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/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 1dfd7b0d2dbe3e4624e4bd67a48e6b733750c11934ce678c95e735510977a1cd
[INFO] running `"docker" "start" "-a" "1dfd7b0d2dbe3e4624e4bd67a48e6b733750c11934ce678c95e735510977a1cd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/json_parser-25f271287c39f851
[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_escaped_strings_ok ... ok
[INFO] [stdout] test json::parser::tests::test_number_ok ... ok
[INFO] [stdout] test json::parser::tests::test_lists_within_lists_ok ... ok
[INFO] [stdout] test json::parser::tests::test_object_ok ... ok
[INFO] [stdout] test json::parser::tests::test_strings_ok ... ok
[INFO] [stdout] test json::parser::tests::test_null_ok ... ok
[INFO] [stdout] test json::parser::tests::test_output_format_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" "1dfd7b0d2dbe3e4624e4bd67a48e6b733750c11934ce678c95e735510977a1cd"`
[INFO] running `"docker" "rm" "-f" "1dfd7b0d2dbe3e4624e4bd67a48e6b733750c11934ce678c95e735510977a1cd"`
[INFO] [stdout] 1dfd7b0d2dbe3e4624e4bd67a48e6b733750c11934ce678c95e735510977a1cd