Dec 05 16:50:32.815 INFO checking alloc-singleton-0.1.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 16:50:32.816 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 05 16:50:33.139 INFO [stdout] cc58135a7d89198d8886e7ba2f98605989a286a004e8fd978f4b75ae83826f42
Dec 05 16:50:33.144 INFO running `"docker" "start" "-a" "cc58135a7d89198d8886e7ba2f98605989a286a004e8fd978f4b75ae83826f42"`
Dec 05 16:50:33.814 INFO [stderr] usermod: no changes
Dec 05 16:50:33.894 INFO [stderr]    Compiling syn v0.15.22
Dec 05 16:50:33.898 INFO [stderr]     Checking as-slice v0.1.0
Dec 05 16:50:47.830 INFO [stderr]    Compiling owned-singleton-macros v0.1.0
Dec 05 16:50:49.960 INFO [stderr]     Checking owned-singleton v0.1.0
Dec 05 16:50:50.051 INFO [stderr]     Checking alloc-singleton v0.1.0 (/source)
Dec 05 16:50:51.414 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.58s
Dec 05 16:50:51.414 INFO [stderr] su: No module specific data is present
Dec 05 16:50:51.855 INFO running `"docker" "inspect" "cc58135a7d89198d8886e7ba2f98605989a286a004e8fd978f4b75ae83826f42"`
Dec 05 16:50:52.043 INFO running `"docker" "rm" "-f" "cc58135a7d89198d8886e7ba2f98605989a286a004e8fd978f4b75ae83826f42"`
Dec 05 16:50:52.343 INFO [stdout] cc58135a7d89198d8886e7ba2f98605989a286a004e8fd978f4b75ae83826f42