Dec 12 18:19:38.384 INFO checking alloc-singleton-0.1.0 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 18:19:38.384 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 18:19:38.577 INFO [stdout] 06f55935648fc87c4d49e1ae55de0b012ffefb4db92c16294ce233dc85aa57a4
Dec 12 18:19:38.580 INFO running `"docker" "start" "-a" "06f55935648fc87c4d49e1ae55de0b012ffefb4db92c16294ce233dc85aa57a4"`
Dec 12 18:19:39.308 INFO [stderr] usermod: no changes
Dec 12 18:19:39.384 INFO [stderr]     Checking stable_deref_trait v1.1.1
Dec 12 18:19:39.384 INFO [stderr]    Compiling owned-singleton-macros v0.1.0
Dec 12 18:19:39.484 INFO [stderr]     Checking as-slice v0.1.0
Dec 12 18:19:43.160 INFO [stderr]     Checking owned-singleton v0.1.0
Dec 12 18:19:43.272 INFO [stderr]     Checking alloc-singleton v0.1.0 (/source)
Dec 12 18:19:44.849 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.52s
Dec 12 18:19:44.852 INFO [stderr] su: No module specific data is present
Dec 12 18:19:45.782 INFO running `"docker" "inspect" "06f55935648fc87c4d49e1ae55de0b012ffefb4db92c16294ce233dc85aa57a4"`
Dec 12 18:19:45.940 INFO running `"docker" "rm" "-f" "06f55935648fc87c4d49e1ae55de0b012ffefb4db92c16294ce233dc85aa57a4"`
Dec 12 18:19:46.316 INFO [stdout] 06f55935648fc87c4d49e1ae55de0b012ffefb4db92c16294ce233dc85aa57a4