Dec 18 18:39:08.925 INFO checking alloc-cortex-m-0.3.5 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 18:39:08.925 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/alloc-cortex-m/0.3.5:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 18:39:09.110 INFO [stdout] 27d714293f37cc2ef9f45b35d27555bfb0bf342072491ac4fe9a9f5eab366b67
Dec 18 18:39:09.110 INFO running `"docker" "start" "-a" "27d714293f37cc2ef9f45b35d27555bfb0bf342072491ac4fe9a9f5eab366b67"`
Dec 18 18:39:09.733 INFO [stderr]     Checking volatile-register v0.1.2
Dec 18 18:39:09.733 INFO [stderr]     Checking linked_list_allocator v0.6.3
Dec 18 18:39:09.872 INFO [stderr]     Checking cortex-m v0.1.8
Dec 18 18:39:10.100 INFO [stderr]     Checking alloc-cortex-m v0.3.5 (/opt/crater/workdir)
Dec 18 18:39:10.377 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
Dec 18 18:39:10.750 INFO running `"docker" "inspect" "27d714293f37cc2ef9f45b35d27555bfb0bf342072491ac4fe9a9f5eab366b67"`
Dec 18 18:39:10.914 INFO running `"docker" "rm" "-f" "27d714293f37cc2ef9f45b35d27555bfb0bf342072491ac4fe9a9f5eab366b67"`
Dec 18 18:39:11.161 INFO [stdout] 27d714293f37cc2ef9f45b35d27555bfb0bf342072491ac4fe9a9f5eab366b67