[INFO] cloning repository https://github.com/jkelleyrtp/comparch_labs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jkelleyrtp/comparch_labs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkelleyrtp%2Fcomparch_labs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkelleyrtp%2Fcomparch_labs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 200a7e80af326d325a30dd97694370115a94964c
[INFO] testing jkelleyrtp/comparch_labs against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkelleyrtp%2Fcomparch_labs" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jkelleyrtp/comparch_labs on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jkelleyrtp/comparch_labs
[INFO] finished tweaking git repo https://github.com/jkelleyrtp/comparch_labs
[INFO] tweaked toml for git repo https://github.com/jkelleyrtp/comparch_labs written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate git repo https://github.com/jkelleyrtp/comparch_labs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cdcf71842f192b215954cff004db899d3a247562718677f4a24aec5b353b5d92
[INFO] running `Command { std: "docker" "start" "-a" "cdcf71842f192b215954cff004db899d3a247562718677f4a24aec5b353b5d92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdcf71842f192b215954cff004db899d3a247562718677f4a24aec5b353b5d92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdcf71842f192b215954cff004db899d3a247562718677f4a24aec5b353b5d92", kill_on_drop: false }`
[INFO] [stdout] cdcf71842f192b215954cff004db899d3a247562718677f4a24aec5b353b5d92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a39020c9f03c817f72a6cef80717aacdd38a066fe429aee3a8976bc838552bb9
[INFO] running `Command { std: "docker" "start" "-a" "a39020c9f03c817f72a6cef80717aacdd38a066fe429aee3a8976bc838552bb9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.5
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling smallvec v1.1.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling base-x v0.2.6
[INFO] [stderr]    Compiling discard v1.0.4
[INFO] [stderr]    Compiling yew v0.10.1 (https://github.com/yewstack/yew/#72ca3bb7)
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling boolinator v2.4.0
[INFO] [stderr]    Compiling utf-8 v0.7.5
[INFO] [stderr]    Compiling base64 v0.11.0
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling yew-macro v0.10.1 (https://github.com/yewstack/yew/#72ca3bb7)
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling stdweb v0.4.20
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.11
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling url v2.1.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling verilator v0.1.3 (/opt/rustwide/workdir/rust/backend/verilator)
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling sha-1 v0.8.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling verilated v0.1.1 (/opt/rustwide/workdir/rust/backend/verilated)
[INFO] [stderr]    Compiling example v0.0.0 (/opt/rustwide/workdir/rust/backend/example)
[INFO] [stderr]    Compiling cpu_backend v0.1.0 (/opt/rustwide/workdir/rust/cpu_backend)
[INFO] [stderr]    Compiling verilated-module v0.1.1 (/opt/rustwide/workdir/rust/backend/verilated-module)
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling input_buffer v0.2.0
[INFO] [stderr] error: failed to run custom build command for `cpu_backend v0.1.0 (/opt/rustwide/workdir/rust/cpu_backend)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/cpu_backend-bba240fd3aa4c045/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   12 items
[INFO] [stderr]   cargo:rerun-if-changed=src/main.rs
[INFO] [stderr]   running: "verilator_bin" "--getenv" "VERILATOR_ROOT"
[INFO] [stderr]   verilator root: ""
[INFO] [stderr]   running: "verilator_bin" "--cc" "-Mdir" "/opt/rustwide/target/debug/build/cpu_backend-fb5fcd224f33d959/out" "--top-module" "top" "--coverage" "--trace" "+1364-2001ext+v" "../backend/example/rtl/counter.v" "+1364-2001ext+v" "../backend/example/rtl/top.v" "/opt/rustwide/target/debug/build/cpu_backend-fb5fcd224f33d959/out/top.cpp"
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at '
[INFO] [stderr]   failed to execute command: No such file or directory (os error 2)
[INFO] [stderr]   is `verilator` not installed?
[INFO] [stderr] 
[INFO] [stderr]   build script failed, must exit now', rust/backend/verilator/src/gen.rs:339:5
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55654f36fe20 - std::backtrace_rs::backtrace::libunwind::trace::h34055254b57d8e79
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x55654f36fe20 - std::backtrace_rs::backtrace::trace_unsynchronized::h8f1e3fbd9afff6ec
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55654f36fe20 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55654f36fe20 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h32d1f94a80615d18
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55654f39031c - core::fmt::write::h306731c068f7162c
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stderr]      5:     0x55654f36c535 - std::io::Write::write_fmt::hd2fa90334eee2a21
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stderr]      6:     0x55654f37244b - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55654f37244b - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55654f37244b - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x55654f371f21 - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x55654f372b14 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:622:17
[INFO] [stderr]     11:     0x55654f3725f7 - std::panicking::begin_panic_handler::{{closure}}::h8ab3b4491718b2c7
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:519:13
[INFO] [stderr]     12:     0x55654f37031c - std::sys_common::backtrace::__rust_end_short_backtrace::hd489062ffa586a9f
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55654f372559 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:515:5
[INFO] [stderr]     14:     0x55654f16dc4b - std::panicking::begin_panic_fmt::h5479575e112541f8
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:457:5
[INFO] [stderr]     15:     0x55654f18ad13 - verilator::gen::fail::he807252e3f87bb74
[INFO] [stderr]                                  at /opt/rustwide/workdir/rust/backend/verilator/src/gen.rs:339:5
[INFO] [stderr]     16:     0x55654f18a806 - verilator::gen::run::ha54f1a9ec20f318d
[INFO] [stderr]                                  at /opt/rustwide/workdir/rust/backend/verilator/src/gen.rs:316:13
[INFO] [stderr]     17:     0x55654f18889b - verilator::gen::Verilator::build::h0f2259ce653d3cb2
[INFO] [stderr]                                  at /opt/rustwide/workdir/rust/backend/verilator/src/gen.rs:188:9
[INFO] [stderr]     18:     0x55654f16f1d6 - build_script_build::main::h5a32fa6fd379d868
[INFO] [stderr]                                  at /opt/rustwide/workdir/rust/cpu_backend/build.rs:29:5
[INFO] [stderr]     19:     0x55654f16f49b - core::ops::function::FnOnce::call_once::he8290e71140fb014
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     20:     0x55654f16f2ce - std::sys_common::backtrace::__rust_begin_short_backtrace::h1a938878d3c79c7a
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     21:     0x55654f16f2a1 - std::rt::lang_start::{{closure}}::h0f02a033e014a7d8
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:49:18
[INFO] [stderr]     22:     0x55654f373019 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h2aabc384aab89b7b
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     23:     0x55654f373019 - std::panicking::try::do_call::hc5fcacb7a85fc7b1
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stderr]     24:     0x55654f373019 - std::panicking::try::hb5d9603af3abbe3a
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stderr]     25:     0x55654f373019 - std::panic::catch_unwind::h98fe6ac3925e64b4
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stderr]     26:     0x55654f373019 - std::rt::lang_start_internal::h22ac7383c516f93e
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:34:21
[INFO] [stderr]     27:     0x55654f16f280 - std::rt::lang_start::h2f585e8422b87a23
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:48:5
[INFO] [stderr]     28:     0x55654f16f24c - main
[INFO] [stderr]     29:     0x7f963aeb60b3 - __libc_start_main
[INFO] [stderr]     30:     0x55654f16eb5e - _start
[INFO] [stderr]     31:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a39020c9f03c817f72a6cef80717aacdd38a066fe429aee3a8976bc838552bb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a39020c9f03c817f72a6cef80717aacdd38a066fe429aee3a8976bc838552bb9", kill_on_drop: false }`
[INFO] [stdout] a39020c9f03c817f72a6cef80717aacdd38a066fe429aee3a8976bc838552bb9
