[INFO] crate simple_json 0.2.3 is already in cache
[INFO] extracting crate simple_json 0.2.3 into work/ex/pr-57609/sources/master#03acbd71c977cd63ce5f39ba9b6fe9ffd578785a/reg/simple_json/0.2.3
[INFO] extracting crate simple_json 0.2.3 into work/ex/pr-57609/sources/try#26f8d250bb3c8a85e812cf663c730ef9e0df9315/reg/simple_json/0.2.3
[INFO] validating manifest of simple_json-0.2.3 on toolchain master#03acbd71c977cd63ce5f39ba9b6fe9ffd578785a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+03acbd71c977cd63ce5f39ba9b6fe9ffd578785a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of simple_json-0.2.3 on toolchain try#26f8d250bb3c8a85e812cf663c730ef9e0df9315
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+26f8d250bb3c8a85e812cf663c730ef9e0df9315-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing simple_json-0.2.3
[INFO] finished frobbing simple_json-0.2.3
[INFO] frobbed toml for simple_json-0.2.3 written to work/ex/pr-57609/sources/master#03acbd71c977cd63ce5f39ba9b6fe9ffd578785a/reg/simple_json/0.2.3/Cargo.toml
[INFO] started frobbing simple_json-0.2.3
[INFO] finished frobbing simple_json-0.2.3
[INFO] frobbed toml for simple_json-0.2.3 written to work/ex/pr-57609/sources/try#26f8d250bb3c8a85e812cf663c730ef9e0df9315/reg/simple_json/0.2.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+03acbd71c977cd63ce5f39ba9b6fe9ffd578785a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+26f8d250bb3c8a85e812cf663c730ef9e0df9315-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+03acbd71c977cd63ce5f39ba9b6fe9ffd578785a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+26f8d250bb3c8a85e812cf663c730ef9e0df9315-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking simple_json-0.2.3 against try#26f8d250bb3c8a85e812cf663c730ef9e0df9315 for pr-57609
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57609/worker-1/try#26f8d250bb3c8a85e812cf663c730ef9e0df9315:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57609/sources/try#26f8d250bb3c8a85e812cf663c730ef9e0df9315/reg/simple_json/0.2.3:/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" "+26f8d250bb3c8a85e812cf663c730ef9e0df9315-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ca63a9f513036487d756cbd288604853406576bd9c3c0f8d84d074194fcab378
[INFO] running `"docker" "start" "-a" "ca63a9f513036487d756cbd288604853406576bd9c3c0f8d84d074194fcab378"`
[INFO] [stderr]     Checking simple_json v0.2.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Number`
[INFO] [stderr]  --> tests/to_string.rs:4:26
[INFO] [stderr]   |
[INFO] [stderr] 4 | use simple_json::{ Json, Number };
[INFO] [stderr]   |                          ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `"docker" "inspect" "ca63a9f513036487d756cbd288604853406576bd9c3c0f8d84d074194fcab378"`
[INFO] running `"docker" "rm" "-f" "ca63a9f513036487d756cbd288604853406576bd9c3c0f8d84d074194fcab378"`
[INFO] [stdout] ca63a9f513036487d756cbd288604853406576bd9c3c0f8d84d074194fcab378