[INFO] crate json-rust 0.1.0 is already in cache
[INFO] extracting crate json-rust 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/json-rust/0.1.0
[INFO] extracting crate json-rust 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/json-rust/0.1.0
[INFO] validating manifest of json-rust-0.1.0 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 json-rust-0.1.0 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 json-rust-0.1.0
[INFO] finished frobbing json-rust-0.1.0
[INFO] frobbed toml for json-rust-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/json-rust/0.1.0/Cargo.toml
[INFO] started frobbing json-rust-0.1.0
[INFO] finished frobbing json-rust-0.1.0
[INFO] frobbed toml for json-rust-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/json-rust/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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] 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 json-rust-0.1.0 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/reg/json-rust/0.1.0:/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] 7a8958ab862f2b459383a49648ba8fc0312110291c97d12dea1b149ae020a4b2
[INFO] running `"docker" "start" "-a" "7a8958ab862f2b459383a49648ba8fc0312110291c97d12dea1b149ae020a4b2"`
[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 0.27s
[INFO] running `"docker" "inspect" "7a8958ab862f2b459383a49648ba8fc0312110291c97d12dea1b149ae020a4b2"`
[INFO] running `"docker" "rm" "-f" "7a8958ab862f2b459383a49648ba8fc0312110291c97d12dea1b149ae020a4b2"`
[INFO] [stdout] 7a8958ab862f2b459383a49648ba8fc0312110291c97d12dea1b149ae020a4b2
[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/reg/json-rust/0.1.0:/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] 12b7954d60e63556f9a104454571a654ca5b68bfdaf38b99d02716be9f649501
[INFO] running `"docker" "start" "-a" "12b7954d60e63556f9a104454571a654ca5b68bfdaf38b99d02716be9f649501"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 0.37s
[INFO] running `"docker" "inspect" "12b7954d60e63556f9a104454571a654ca5b68bfdaf38b99d02716be9f649501"`
[INFO] running `"docker" "rm" "-f" "12b7954d60e63556f9a104454571a654ca5b68bfdaf38b99d02716be9f649501"`
[INFO] [stdout] 12b7954d60e63556f9a104454571a654ca5b68bfdaf38b99d02716be9f649501
[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/reg/json-rust/0.1.0:/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] 7bae2e746d605d7cb52945f1166390c1517647dbcbde693f1a0a1871da678867
[INFO] running `"docker" "start" "-a" "7bae2e746d605d7cb52945f1166390c1517647dbcbde693f1a0a1871da678867"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/json_rust-53a2d8bce52cb07e
[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" "7bae2e746d605d7cb52945f1166390c1517647dbcbde693f1a0a1871da678867"`
[INFO] running `"docker" "rm" "-f" "7bae2e746d605d7cb52945f1166390c1517647dbcbde693f1a0a1871da678867"`
[INFO] [stdout] 7bae2e746d605d7cb52945f1166390c1517647dbcbde693f1a0a1871da678867