[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/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/korpiq/rust_json_parser"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/gh/korpiq/rust_json_parser'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/korpiq/rust_json_parser" "work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/gh/korpiq/rust_json_parser"`
[INFO] [stderr] Cloning into 'work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/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 master#1891bfa80364eead426517c68de6947b7692e2de
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of korpiq/rust_json_parser on toolchain try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "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/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/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/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/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" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking korpiq/rust_json_parser against master#1891bfa80364eead426517c68de6947b7692e2de for pr-60261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60261/worker-7/master#1891bfa80364eead426517c68de6947b7692e2de:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/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=forbid" "-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" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] bd5baa55e43ec7584ac0bc55b00e5f9cd504d943564d7ff5c913ee01a575aec8
[INFO] running `"docker" "start" "-a" "bd5baa55e43ec7584ac0bc55b00e5f9cd504d943564d7ff5c913ee01a575aec8"`
[INFO] [stderr]     Checking circular v0.2.0
[INFO] [stderr]     Checking memchr v2.1.3
[INFO] [stderr]     Checking nom v4.2.0
[INFO] [stderr]     Checking 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 3.65s
[INFO] running `"docker" "inspect" "bd5baa55e43ec7584ac0bc55b00e5f9cd504d943564d7ff5c913ee01a575aec8"`
[INFO] running `"docker" "rm" "-f" "bd5baa55e43ec7584ac0bc55b00e5f9cd504d943564d7ff5c913ee01a575aec8"`
[INFO] [stdout] bd5baa55e43ec7584ac0bc55b00e5f9cd504d943564d7ff5c913ee01a575aec8