Dec 12 14:51:02.041 INFO checking from_variants_impl-0.4.0 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 14:51:02.041 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-2/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 14:51:02.315 INFO [stdout] cc8ec18ee58cce6762b89840c51f1f8cd598227451dc7dc498ac379cc2c8552a
Dec 12 14:51:02.320 INFO running `"docker" "start" "-a" "cc8ec18ee58cce6762b89840c51f1f8cd598227451dc7dc498ac379cc2c8552a"`
Dec 12 14:51:02.735 INFO [stderr] usermod: no changes
Dec 12 14:51:02.802 INFO [stderr]     Checking ident_case v1.0.0
Dec 12 14:51:02.802 INFO [stderr]    Compiling syn v0.13.11
Dec 12 14:51:12.328 INFO [stderr]     Checking darling_core v0.5.0
Dec 12 14:51:27.188 INFO [stderr]    Compiling darling_macro v0.5.0
Dec 12 14:51:29.496 INFO [stderr]     Checking darling v0.5.0
Dec 12 14:51:30.556 INFO [stderr]     Checking from_variants_impl v0.4.0 (/source)
Dec 12 14:51:33.411 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.65s
Dec 12 14:51:33.415 INFO [stderr] su: No module specific data is present
Dec 12 14:51:34.260 INFO running `"docker" "inspect" "cc8ec18ee58cce6762b89840c51f1f8cd598227451dc7dc498ac379cc2c8552a"`
Dec 12 14:51:34.435 INFO running `"docker" "rm" "-f" "cc8ec18ee58cce6762b89840c51f1f8cd598227451dc7dc498ac379cc2c8552a"`
Dec 12 14:51:34.608 INFO [stdout] cc8ec18ee58cce6762b89840c51f1f8cd598227451dc7dc498ac379cc2c8552a