[INFO] cloning repository cthi/json_parse
[INFO] running `"git" "clone" "--bare" "git://github.com/cthi/json_parse.git" "work/cache/sources/gh/cthi/json_parse"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/cthi/json_parse'...
[INFO] running `"git" "clone" "work/cache/sources/gh/cthi/json_parse" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/cthi/json_parse"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/cthi/json_parse'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cthi/json_parse" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/cthi/json_parse"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/cthi/json_parse'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9f6266ca5ef908fc30d245dc98864db1e69a5606
[INFO] sha for GitHub repo cthi/json_parse: 9f6266ca5ef908fc30d245dc98864db1e69a5606
[INFO] validating manifest of cthi/json_parse on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cthi/json_parse on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cthi/json_parse
[INFO] finished frobbing cthi/json_parse
[INFO] frobbed toml for cthi/json_parse written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/cthi/json_parse/Cargo.toml
[INFO] started frobbing cthi/json_parse
[INFO] finished frobbing cthi/json_parse
[INFO] frobbed toml for cthi/json_parse written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/cthi/json_parse/Cargo.toml
[INFO] crate cthi/json_parse has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking cthi/json_parse against master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-6/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/cthi/json_parse:/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" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 78bda31dd55b0b40d6a5392a42b68e96b702a19086b25d52348e0af075ac7c6a
[INFO] running `"docker" "start" "-a" "78bda31dd55b0b40d6a5392a42b68e96b702a19086b25d52348e0af075ac7c6a"`
[INFO] [stderr]     Checking json_parse v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the feature `option_filter` has been stable since 1.27.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(option_filter)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `option_filter` has been stable since 1.27.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(option_filter)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "78bda31dd55b0b40d6a5392a42b68e96b702a19086b25d52348e0af075ac7c6a"`
[INFO] running `"docker" "rm" "-f" "78bda31dd55b0b40d6a5392a42b68e96b702a19086b25d52348e0af075ac7c6a"`
[INFO] [stdout] 78bda31dd55b0b40d6a5392a42b68e96b702a19086b25d52348e0af075ac7c6a