Dec 18 14:45:14.409 INFO checking json_str-0.5.2 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 14:45:14.410 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/json_str/0.5.2:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 14:45:14.980 INFO [stdout] d13a3e1b8d381fb85fce3cdebf2c6f2d97b43fa057c7100c6f198c48ac6baf3b
Dec 18 14:45:14.986 INFO running `"docker" "start" "-a" "d13a3e1b8d381fb85fce3cdebf2c6f2d97b43fa057c7100c6f198c48ac6baf3b"`
Dec 18 14:45:16.484 INFO [stderr]    Compiling json_str v0.5.2 (/opt/crater/workdir)
Dec 18 14:45:18.296 INFO [stderr] error[E0557]: feature has been removed
Dec 18 14:45:18.296 INFO [stderr]  --> benches/mod.rs:1:26
Dec 18 14:45:18.296 INFO [stderr]   |
Dec 18 14:45:18.296 INFO [stderr] 1 | #![feature(test, plugin, custom_derive)]
Dec 18 14:45:18.296 INFO [stderr]   |                          ^^^^^^^^^^^^^
Dec 18 14:45:18.296 INFO [stderr]   |
Dec 18 14:45:18.296 INFO [stderr] note: subsumed by `#[proc_macro_derive]`
Dec 18 14:45:18.296 INFO [stderr]  --> benches/mod.rs:1:26
Dec 18 14:45:18.296 INFO [stderr]   |
Dec 18 14:45:18.296 INFO [stderr] 1 | #![feature(test, plugin, custom_derive)]
Dec 18 14:45:18.296 INFO [stderr]   |                          ^^^^^^^^^^^^^
Dec 18 14:45:18.296 INFO [stderr] 
Dec 18 14:45:18.653 INFO [stderr] error: aborting due to previous error
Dec 18 14:45:18.653 INFO [stderr] 
Dec 18 14:45:18.653 INFO [stderr] For more information about this error, try `rustc --explain E0557`.
Dec 18 14:45:18.666 INFO [stderr] error: Could not compile `json_str`.
Dec 18 14:45:18.668 INFO [stderr] 
Dec 18 14:45:18.668 INFO [stderr] To learn more, run the command again with --verbose.
Dec 18 14:45:19.466 INFO running `"docker" "inspect" "d13a3e1b8d381fb85fce3cdebf2c6f2d97b43fa057c7100c6f198c48ac6baf3b"`
Dec 18 14:45:19.842 INFO running `"docker" "rm" "-f" "d13a3e1b8d381fb85fce3cdebf2c6f2d97b43fa057c7100c6f198c48ac6baf3b"`
Dec 18 14:45:20.222 INFO [stdout] d13a3e1b8d381fb85fce3cdebf2c6f2d97b43fa057c7100c6f198c48ac6baf3b