[INFO] updating cached repository williamyyj/json-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/williamyyj/json-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/williamyyj/json-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/williamyyj/json-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/williamyyj/json-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/williamyyj/json-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/williamyyj/json-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/williamyyj/json-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e747a59eaa3806b58c2591e87f1588f895a6ef01
[INFO] sha for GitHub repo williamyyj/json-rust: e747a59eaa3806b58c2591e87f1588f895a6ef01
[INFO] validating manifest of williamyyj/json-rust 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 williamyyj/json-rust 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 williamyyj/json-rust
[INFO] finished frobbing williamyyj/json-rust
[INFO] frobbed toml for williamyyj/json-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/williamyyj/json-rust/Cargo.toml
[INFO] started frobbing williamyyj/json-rust
[INFO] finished frobbing williamyyj/json-rust
[INFO] frobbed toml for williamyyj/json-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/williamyyj/json-rust/Cargo.toml
[INFO] crate williamyyj/json-rust 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 williamyyj/json-rust against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/williamyyj/json-rust:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 659be668eae76bb387cf25742043904875e78dfb8fe361e093fc95600c5cb7dc
[INFO] running `"docker" "start" "-a" "659be668eae76bb387cf25742043904875e78dfb8fe361e093fc95600c5cb7dc"`
[INFO] [stderr]    Compiling json-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `new`
[INFO] [stderr]  --> src/hhome/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pub fn new(){
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: module `JSONObject` should have a snake case name
[INFO] [stderr]  --> src/hhome/mod.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub mod JSONObject {
[INFO] [stderr]   |         ^^^^^^^^^^ help: convert the identifier to snake case: `jsonobject`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `"docker" "inspect" "659be668eae76bb387cf25742043904875e78dfb8fe361e093fc95600c5cb7dc"`
[INFO] running `"docker" "rm" "-f" "659be668eae76bb387cf25742043904875e78dfb8fe361e093fc95600c5cb7dc"`
[INFO] [stdout] 659be668eae76bb387cf25742043904875e78dfb8fe361e093fc95600c5cb7dc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/williamyyj/json-rust:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7af023641ff46a320cb989f360cecd923d2b4a287eb262ac36efa3837e78b064
[INFO] running `"docker" "start" "-a" "7af023641ff46a320cb989f360cecd923d2b4a287eb262ac36efa3837e78b064"`
[INFO] [stderr]    Compiling json-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `new`
[INFO] [stderr]  --> src/hhome/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pub fn new(){
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: module `JSONObject` should have a snake case name
[INFO] [stderr]  --> src/hhome/mod.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub mod JSONObject {
[INFO] [stderr]   |         ^^^^^^^^^^ help: convert the identifier to snake case: `jsonobject`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "7af023641ff46a320cb989f360cecd923d2b4a287eb262ac36efa3837e78b064"`
[INFO] running `"docker" "rm" "-f" "7af023641ff46a320cb989f360cecd923d2b4a287eb262ac36efa3837e78b064"`
[INFO] [stdout] 7af023641ff46a320cb989f360cecd923d2b4a287eb262ac36efa3837e78b064
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/williamyyj/json-rust:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] efb04b65cab9585b47ff0c13652b9a54953a0386b851f1426afd2e26e6d57f58
[INFO] running `"docker" "start" "-a" "efb04b65cab9585b47ff0c13652b9a54953a0386b851f1426afd2e26e6d57f58"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/json_rust-d06e20fd446df886
[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" "efb04b65cab9585b47ff0c13652b9a54953a0386b851f1426afd2e26e6d57f58"`
[INFO] running `"docker" "rm" "-f" "efb04b65cab9585b47ff0c13652b9a54953a0386b851f1426afd2e26e6d57f58"`
[INFO] [stdout] efb04b65cab9585b47ff0c13652b9a54953a0386b851f1426afd2e26e6d57f58