Dec 12 14:51:02.605 INFO checking from_variants-0.4.0 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 14:51:02.605 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 14:51:02.767 INFO [stdout] 15de391cbc87817752dc764224c89d2c13dcd38f95f4ffe801db7b07ac12d300
Dec 12 14:51:02.784 INFO running `"docker" "start" "-a" "15de391cbc87817752dc764224c89d2c13dcd38f95f4ffe801db7b07ac12d300"`
Dec 12 14:51:03.399 INFO [stderr] usermod: no changes
Dec 12 14:51:03.459 INFO [stderr]    Compiling error-chain v0.11.0
Dec 12 14:51:03.459 INFO [stderr]    Compiling darling_core v0.5.0
Dec 12 14:51:11.334 INFO [stderr]    Compiling darling_macro v0.5.0
Dec 12 14:51:14.210 INFO [stderr]    Compiling darling v0.5.0
Dec 12 14:51:15.180 INFO [stderr]    Compiling from_variants_impl v0.4.0
Dec 12 14:51:19.610 INFO [stderr]     Checking from_variants v0.4.0 (/source)
Dec 12 14:51:21.662 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.24s
Dec 12 14:51:21.665 INFO [stderr] su: No module specific data is present
Dec 12 14:51:22.126 INFO running `"docker" "inspect" "15de391cbc87817752dc764224c89d2c13dcd38f95f4ffe801db7b07ac12d300"`
Dec 12 14:51:22.331 INFO running `"docker" "rm" "-f" "15de391cbc87817752dc764224c89d2c13dcd38f95f4ffe801db7b07ac12d300"`
Dec 12 14:51:22.494 INFO [stdout] 15de391cbc87817752dc764224c89d2c13dcd38f95f4ffe801db7b07ac12d300