Dec 18 18:20:24.186 INFO checking avr-mcu-0.2.6 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 18:20:24.186 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/avr-mcu/0.2.6:/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 18:20:24.698 INFO [stdout] 112a5c0474cb35704afde96efdc12ac6dc7ab419eee2981a3b5b5c80d3b7ffa2
Dec 18 18:20:24.701 INFO running `"docker" "start" "-a" "112a5c0474cb35704afde96efdc12ac6dc7ab419eee2981a3b5b5c80d3b7ffa2"`
Dec 18 18:20:25.935 INFO [stderr]     Checking xmltree v0.4.0
Dec 18 18:20:26.307 INFO [stderr]     Checking avr-mcu v0.2.6 (/opt/crater/workdir)
Dec 18 18:20:27.588 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 18 18:20:27.588 INFO [stderr]   --> src/lib.rs:38:12
Dec 18 18:20:27.588 INFO [stderr]    |
Dec 18 18:20:27.588 INFO [stderr] 38 | #![feature(conservative_impl_trait)]
Dec 18 18:20:27.588 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:20:27.588 INFO [stderr]    |
Dec 18 18:20:27.588 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 18 18:20:27.588 INFO [stderr] 
Dec 18 18:20:27.740 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 18 18:20:27.740 INFO [stderr]   --> src/lib.rs:38:12
Dec 18 18:20:27.740 INFO [stderr]    |
Dec 18 18:20:27.740 INFO [stderr] 38 | #![feature(conservative_impl_trait)]
Dec 18 18:20:27.740 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 18:20:27.740 INFO [stderr]    |
Dec 18 18:20:27.741 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 18 18:20:27.741 INFO [stderr] 
Dec 18 18:20:27.780 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.87s
Dec 18 18:20:28.157 INFO running `"docker" "inspect" "112a5c0474cb35704afde96efdc12ac6dc7ab419eee2981a3b5b5c80d3b7ffa2"`
Dec 18 18:20:28.332 INFO running `"docker" "rm" "-f" "112a5c0474cb35704afde96efdc12ac6dc7ab419eee2981a3b5b5c80d3b7ffa2"`
Dec 18 18:20:28.632 INFO [stdout] 112a5c0474cb35704afde96efdc12ac6dc7ab419eee2981a3b5b5c80d3b7ffa2