[INFO] fetching crate mun_skeptic 0.1.0...
[INFO] testing mun_skeptic-0.1.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate mun_skeptic 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate mun_skeptic 0.1.0 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 crates.io crate mun_skeptic 0.1.0
[INFO] finished tweaking crates.io crate mun_skeptic 0.1.0
[INFO] tweaked toml for crates.io crate mun_skeptic 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 9519d4c30798f7e2d775efbc5c47c98576a535e34b6f953b074b4e8452b3a4f6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9519d4c30798f7e2d775efbc5c47c98576a535e34b6f953b074b4e8452b3a4f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9519d4c30798f7e2d775efbc5c47c98576a535e34b6f953b074b4e8452b3a4f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9519d4c30798f7e2d775efbc5c47c98576a535e34b6f953b074b4e8452b3a4f6", kill_on_drop: false }`
[INFO] [stdout] 9519d4c30798f7e2d775efbc5c47c98576a535e34b6f953b074b4e8452b3a4f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c8b3a4a14ecd2b32b44a9b4a3b6cf774daf4a72473e02445fda68425b29547d0
[INFO] running `Command { std: "docker" "start" "-a" "c8b3a4a14ecd2b32b44a9b4a3b6cf774daf4a72473e02445fda68425b29547d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling mun_target v0.3.0
[INFO] [stderr]    Compiling inkwell v0.1.0-beta.2
[INFO] [stderr]    Compiling superslice v1.0.0
[INFO] [stderr]    Compiling md5 v0.6.1
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling by_address v1.0.4
[INFO] [stderr]    Compiling array-init v0.1.1
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling futf v0.1.4
[INFO] [stderr]    Compiling gitignore v1.0.7
[INFO] [stderr]    Compiling open v1.7.1
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling lockfile v0.2.2
[INFO] [stderr]    Compiling text-size v1.1.0
[INFO] [stderr]    Compiling smol_str v0.1.18
[INFO] [stderr]    Compiling string_cache v0.8.1
[INFO] [stderr]    Compiling semver v0.10.0
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling inotify v0.7.1
[INFO] [stderr]    Compiling tendril v0.4.2
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]    Compiling triomphe v0.1.3
[INFO] [stderr]    Compiling mun_abi v0.3.0
[INFO] [stderr]    Compiling llvm-sys v110.0.1
[INFO] [stderr]    Compiling mun_lld v110.0.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling ra_ap_text_edit v0.0.35
[INFO] [stderr]    Compiling headers v0.3.4
[INFO] [stderr]    Compiling tungstenite v0.12.0
[INFO] [stderr]    Compiling rowan v0.10.6
[INFO] [stderr]    Compiling mun_libloader v0.1.0
[INFO] [stderr]    Compiling mun_memory v0.2.0
[INFO] [stderr]    Compiling markup5ever v0.10.1
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling mun_syntax v0.3.0
[INFO] [stderr]    Compiling notify v4.0.17
[INFO] [stderr] error: failed to run custom build command for `mun_lld v110.0.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/mun_lld-c1c7ee543829059a/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   Found LLVM version 10.0.0 on PATH, but need 11.0.0.
[INFO] [stderr]   Didn't find usable system-wide LLVM.
[INFO] [stderr]   No suitable version of LLVM was found system-wide or pointed
[INFO] [stderr]                     to by LLVM_SYS_110_PREFIX.
[INFO] [stderr] 
[INFO] [stderr]                     Consider using `llvmenv` to compile an appropriate copy of LLVM, and
[INFO] [stderr]                     refer to the llvm-sys documentation for more information.
[INFO] [stderr] 
[INFO] [stderr]                     llvm-sys: https://crates.io/crates/llvm-sys
[INFO] [stderr]                     llvmenv: https://crates.io/crates/llvmenv
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'Could not find a compatible version of LLVM', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mun_lld-110.0.0/build.rs:73:9
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55e1f50baa40 - 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:     0x55e1f50baa40 - 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:     0x55e1f50baa40 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55e1f50baa40 - <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:     0x55e1f50da37c - core::fmt::write::h306731c068f7162c
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stderr]      5:     0x55e1f50b7415 - std::io::Write::write_fmt::hd2fa90334eee2a21
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stderr]      6:     0x55e1f50bcc3b - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55e1f50bcc3b - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55e1f50bcc3b - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x55e1f50bc711 - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x55e1f50bd304 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:622:17
[INFO] [stderr]     11:     0x55e1f5078273 - std::panicking::begin_panic::{{closure}}::hb81a6fe7585339b9
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:542:9
[INFO] [stderr]     12:     0x55e1f5093dd9 - std::sys_common::backtrace::__rust_end_short_backtrace::h1ebec22aa675cac3
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55e1f50781a9 - std::panicking::begin_panic::hb51a2004765c674e
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:541:12
[INFO] [stderr]     14:     0x55e1f4e676e0 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__static_ref_initialize::h5b46f62bcf1958dd
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mun_lld-110.0.0/build.rs:73:9
[INFO] [stderr]     15:     0x55e1f4e676e0 - core::ops::function::FnOnce::call_once::h9dbbc23a4513e8c0
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     16:     0x55e1f4e6a0cb - lazy_static::lazy::Lazy<T>::get::{{closure}}::h2d4c56bb42d8764b
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.4.0/src/inline_lazy.rs:31:29
[INFO] [stderr]     17:     0x55e1f4e6697b - std::sync::once::Once::call_once::{{closure}}::heab8e8d8a0e98cb0
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sync/once.rs:261:41
[INFO] [stderr]     18:     0x55e1f4e5fa3c - std::sync::once::Once::call_inner::h4030b088a5783b2d
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sync/once.rs:418:21
[INFO] [stderr]     19:     0x55e1f4e667c6 - std::sync::once::Once::call_once::h811e1e3fbd3f4fd6
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sync/once.rs:261:9
[INFO] [stderr]     20:     0x55e1f4e66372 - lazy_static::lazy::Lazy<T>::get::h16bd893f04d0306a
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.4.0/src/inline_lazy.rs:30:9
[INFO] [stderr]     21:     0x55e1f4e66372 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__stability::h0d9d93e9718f5393
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.4.0/src/lib.rs:142:21
[INFO] [stderr]     22:     0x55e1f4e66372 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::ha691520b71ee3c32
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.4.0/src/lib.rs:144:17
[INFO] [stderr]     23:     0x55e1f4e63bcd - build_script_build::llvm_config::h124ea4dd85c89eef
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mun_lld-110.0.0/build.rs:179:21
[INFO] [stderr]     24:     0x55e1f4e64f87 - build_script_build::get_llvm_cxxflags::hd56c57370f5dac0c
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mun_lld-110.0.0/build.rs:286:18
[INFO] [stderr]     25:     0x55e1f4e6537c - build_script_build::main::h1a040175f9f6fee5
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mun_lld-110.0.0/build.rs:319:35
[INFO] [stderr]     26:     0x55e1f4e66a8b - core::ops::function::FnOnce::call_once::h14fb0f7a1fa48a4a
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     27:     0x55e1f4e664ee - std::sys_common::backtrace::__rust_begin_short_backtrace::hdac7f40c007dd481
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     28:     0x55e1f4e6e451 - std::rt::lang_start::{{closure}}::h8ccf035e7da4d113
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:49:18
[INFO] [stderr]     29:     0x55e1f50bd809 - 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]     30:     0x55e1f50bd809 - std::panicking::try::do_call::hc5fcacb7a85fc7b1
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stderr]     31:     0x55e1f50bd809 - std::panicking::try::hb5d9603af3abbe3a
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stderr]     32:     0x55e1f50bd809 - std::panic::catch_unwind::h98fe6ac3925e64b4
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stderr]     33:     0x55e1f50bd809 - std::rt::lang_start_internal::h22ac7383c516f93e
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:34:21
[INFO] [stderr]     34:     0x55e1f4e6e430 - std::rt::lang_start::h745c6f4eb6801456
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:48:5
[INFO] [stderr]     35:     0x55e1f4e664dc - main
[INFO] [stderr]     36:     0x7fafefbd30b3 - __libc_start_main
[INFO] [stderr]     37:     0x55e1f4e6104e - _start
[INFO] [stderr]     38:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c8b3a4a14ecd2b32b44a9b4a3b6cf774daf4a72473e02445fda68425b29547d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8b3a4a14ecd2b32b44a9b4a3b6cf774daf4a72473e02445fda68425b29547d0", kill_on_drop: false }`
[INFO] [stdout] c8b3a4a14ecd2b32b44a9b4a3b6cf774daf4a72473e02445fda68425b29547d0
