Dec 12 03:37:47.434 INFO checking BurntSushi/vcr against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 03:37:47.434 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 03:37:47.949 INFO [stdout] 4d56dad66697fa71fc35f20e348d7ef5d06f5e8c8abc1e2b5d0ea040c0227f5d
Dec 12 03:37:47.951 INFO running `"docker" "start" "-a" "4d56dad66697fa71fc35f20e348d7ef5d06f5e8c8abc1e2b5d0ea040c0227f5d"`
Dec 12 03:37:49.904 INFO [stderr] usermod: no changes
Dec 12 03:37:50.052 INFO [stderr]    Compiling backtrace-sys v0.1.16
Dec 12 03:38:05.580 INFO [stderr]     Checking backtrace v0.3.5
Dec 12 03:38:06.396 INFO [stderr]     Checking failure v0.1.1
Dec 12 03:38:07.372 INFO [stderr]     Checking vcr v0.1.0 (/source)
Dec 12 03:38:10.476 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.54s
Dec 12 03:38:10.479 INFO [stderr] su: No module specific data is present
Dec 12 03:38:11.931 INFO running `"docker" "inspect" "4d56dad66697fa71fc35f20e348d7ef5d06f5e8c8abc1e2b5d0ea040c0227f5d"`
Dec 12 03:38:12.274 INFO running `"docker" "rm" "-f" "4d56dad66697fa71fc35f20e348d7ef5d06f5e8c8abc1e2b5d0ea040c0227f5d"`
Dec 12 03:38:12.636 INFO [stdout] 4d56dad66697fa71fc35f20e348d7ef5d06f5e8c8abc1e2b5d0ea040c0227f5d