Nov 01 22:55:43.020 INFO checking from_variants_impl-0.4.0 against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 22:55:43.020 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-1/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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"`
Nov 01 22:55:43.191 INFO blam! 152948e9a82432af1f4d6b9c37dd62cc1b30c225603190455084952eb1c7a6e0
Nov 01 22:55:43.192 INFO running `"docker" "start" "-a" "152948e9a82432af1f4d6b9c37dd62cc1b30c225603190455084952eb1c7a6e0"`
Nov 01 22:55:43.776 INFO kablam! usermod: no changes
Nov 01 22:55:43.836 INFO kablam!     Checking ident_case v1.0.0
Nov 01 22:55:43.836 INFO kablam!     Checking pretty_assertions v0.1.2
Nov 01 22:55:43.836 INFO kablam!    Compiling syn v0.13.11
Nov 01 22:55:57.076 INFO kablam!     Checking darling_core v0.5.0
Nov 01 22:56:18.704 INFO kablam!    Compiling darling_macro v0.5.0
Nov 01 22:56:23.836 INFO kablam!     Checking darling v0.5.0
Nov 01 22:56:27.267 INFO kablam!     Checking from_variants_impl v0.4.0 (/source)
Nov 01 22:56:32.472 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 48.68s
Nov 01 22:56:32.478 INFO kablam! su: No module specific data is present
Nov 01 22:56:32.892 INFO running `"docker" "rm" "-f" "152948e9a82432af1f4d6b9c37dd62cc1b30c225603190455084952eb1c7a6e0"`
Nov 01 22:56:33.108 INFO blam! 152948e9a82432af1f4d6b9c37dd62cc1b30c225603190455084952eb1c7a6e0