Dec 12 17:51:41.841 INFO checking avr-mcu-0.2.6 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 17:51:41.842 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 17:51:42.412 INFO [stdout] 4fd4b16f98acaae998e4afdd3e3591b6f00a4976b4cef8a5082633c334bb7721
Dec 12 17:51:42.420 INFO running `"docker" "start" "-a" "4fd4b16f98acaae998e4afdd3e3591b6f00a4976b4cef8a5082633c334bb7721"`
Dec 12 17:51:43.928 INFO [stderr] usermod: no changes
Dec 12 17:51:44.012 INFO [stderr]     Checking avr-mcu v0.2.6 (/source)
Dec 12 17:51:46.608 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 12 17:51:46.608 INFO [stderr]   --> src/lib.rs:38:12
Dec 12 17:51:46.608 INFO [stderr]    |
Dec 12 17:51:46.608 INFO [stderr] 38 | #![feature(conservative_impl_trait)]
Dec 12 17:51:46.608 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 17:51:46.608 INFO [stderr]    |
Dec 12 17:51:46.608 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 12 17:51:46.608 INFO [stderr] 
Dec 12 17:51:47.223 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 12 17:51:47.223 INFO [stderr]   --> src/lib.rs:38:12
Dec 12 17:51:47.223 INFO [stderr]    |
Dec 12 17:51:47.223 INFO [stderr] 38 | #![feature(conservative_impl_trait)]
Dec 12 17:51:47.223 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 17:51:47.223 INFO [stderr]    |
Dec 12 17:51:47.223 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 12 17:51:47.223 INFO [stderr] 
Dec 12 17:51:47.295 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.33s
Dec 12 17:51:47.304 INFO [stderr] su: No module specific data is present
Dec 12 17:51:47.848 INFO running `"docker" "inspect" "4fd4b16f98acaae998e4afdd3e3591b6f00a4976b4cef8a5082633c334bb7721"`
Dec 12 17:51:48.113 INFO running `"docker" "rm" "-f" "4fd4b16f98acaae998e4afdd3e3591b6f00a4976b4cef8a5082633c334bb7721"`
Dec 12 17:51:48.415 INFO [stdout] 4fd4b16f98acaae998e4afdd3e3591b6f00a4976b4cef8a5082633c334bb7721