Sep 05 21:12:18.353 INFO checking verilated-0.1.1 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 05 21:12:18.353 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 05 21:12:18.354 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-1/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 05 21:12:18.528 INFO blam! 171fb3a6cfea94584c96224aa77129742d9174e5694d67509f4a489588ed5be2
Sep 05 21:12:18.530 INFO running `"docker" "start" "-a" "171fb3a6cfea94584c96224aa77129742d9174e5694d67509f4a489588ed5be2"`
Sep 05 21:12:19.290 INFO kablam! usermod: no changes
Sep 05 21:12:19.320 INFO kablam!    Compiling verilator v0.1.1
Sep 05 21:12:19.649 INFO kablam!    Compiling verilated v0.1.1 (file:///source)
Sep 05 21:12:20.246 INFO kablam! error: failed to run custom build command for `verilated v0.1.1 (file:///source)`
Sep 05 21:12:20.246 INFO kablam! process didn't exit successfully: `/target/debug/build/verilated-31ce9ea4a37d8684/build-script-build` (exit code: 101)
Sep 05 21:12:20.246 INFO kablam! --- stderr
Sep 05 21:12:20.246 INFO kablam! thread 'main' panicked at '
Sep 05 21:12:20.246 INFO kablam! Failed to find `${VERILATOR_ROOT}`.  Please set `VERILATOR_ROOT` environment variable or ensure `verilator` is in `PATH`.
Sep 05 21:12:20.246 INFO kablam! 
Sep 05 21:12:20.246 INFO kablam! build script failed, must exit now', build.rs:16:5
Sep 05 21:12:20.246 INFO kablam! stack backtrace:
Sep 05 21:12:20.246 INFO kablam!    0:     0x5653ae2dfc9e - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h8a3717aa058b4444
Sep 05 21:12:20.246 INFO kablam!                                at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
Sep 05 21:12:20.246 INFO kablam!    1:     0x5653ae2cfbb6 - std::sys_common::backtrace::print::h617f5662cea50e67
Sep 05 21:12:20.246 INFO kablam!                                at libstd/sys_common/backtrace.rs:71
Sep 05 21:12:20.246 INFO kablam!                                at libstd/sys_common/backtrace.rs:59
Sep 05 21:12:20.246 INFO kablam!    2:     0x5653ae2cdf4d - std::panicking::default_hook::{{closure}}::h45bb696cfc423488
Sep 05 21:12:20.246 INFO kablam!                                at libstd/panicking.rs:211
Sep 05 21:12:20.246 INFO kablam!    3:     0x5653ae2cdcc0 - std::panicking::default_hook::h4902fe318897fea2
Sep 05 21:12:20.246 INFO kablam!                                at libstd/panicking.rs:227
Sep 05 21:12:20.246 INFO kablam!    4:     0x5653ae2ce5bc - std::panicking::rust_panic_with_hook::h2d79c14c8c515345
Sep 05 21:12:20.246 INFO kablam!                                at libstd/panicking.rs:477
Sep 05 21:12:20.247 INFO kablam!    5:     0x5653ae2ce1b9 - std::panicking::continue_panic_fmt::h62ee5eb5a6bc9d14
Sep 05 21:12:20.247 INFO kablam!                                at libstd/panicking.rs:391
Sep 05 21:12:20.247 INFO kablam!    6:     0x5653ae2ce11d - std::panicking::begin_panic_fmt::hd5b65c3e9cee3185
Sep 05 21:12:20.247 INFO kablam!                                at libstd/panicking.rs:346
Sep 05 21:12:20.247 INFO kablam!    7:     0x5653ae257ea1 - build_script_build::fail::h468b5d57d1809a2f
Sep 05 21:12:20.247 INFO kablam!                                at /source/build.rs:16
Sep 05 21:12:20.247 INFO kablam!    8:     0x5653ae257f2b - build_script_build::main::h003c3b40fef491f2
Sep 05 21:12:20.247 INFO kablam!                                at /source/build.rs:71
Sep 05 21:12:20.247 INFO kablam!    9:     0x5653ae258f5f - std::rt::lang_start::{{closure}}::h46d73acbf894ba56
Sep 05 21:12:20.247 INFO kablam!                                at /checkout/src/libstd/rt.rs:74
Sep 05 21:12:20.247 INFO kablam!   10:     0x5653ae2ce052 - std::panicking::try::do_call::hf986ca4f663b7a95
Sep 05 21:12:20.247 INFO kablam!                                at libstd/rt.rs:59
Sep 05 21:12:20.247 INFO kablam!                                at libstd/panicking.rs:310
Sep 05 21:12:20.247 INFO kablam!   11:     0x5653ae2f20d9 - __rust_maybe_catch_panic
Sep 05 21:12:20.247 INFO kablam!                                at libpanic_unwind/lib.rs:103
Sep 05 21:12:20.247 INFO kablam!   12:     0x5653ae2db445 - std::rt::lang_start_internal::h1fa2095e36818e42
Sep 05 21:12:20.247 INFO kablam!                                at libstd/panicking.rs:289
Sep 05 21:12:20.247 INFO kablam!                                at libstd/panic.rs:392
Sep 05 21:12:20.247 INFO kablam!                                at libstd/rt.rs:58
Sep 05 21:12:20.247 INFO kablam!   13:     0x5653ae258f37 - std::rt::lang_start::h5fd731a996945cb0
Sep 05 21:12:20.247 INFO kablam!                                at /checkout/src/libstd/rt.rs:74
Sep 05 21:12:20.247 INFO kablam!   14:     0x5653ae258939 - main
Sep 05 21:12:20.247 INFO kablam!   15:     0x7fdfa5df282f - __libc_start_main
Sep 05 21:12:20.247 INFO kablam!   16:     0x5653ae256818 - _start
Sep 05 21:12:20.247 INFO kablam!   17:                0x0 - <unknown>
Sep 05 21:12:20.247 INFO kablam! 
Sep 05 21:12:20.247 INFO kablam! su: No module specific data is present
Sep 05 21:12:20.727 INFO running `"docker" "rm" "-f" "171fb3a6cfea94584c96224aa77129742d9174e5694d67509f4a489588ed5be2"`
Sep 05 21:12:20.808 INFO blam! 171fb3a6cfea94584c96224aa77129742d9174e5694d67509f4a489588ed5be2