[INFO] fetching crate avr-libc 0.2.2...
[INFO] checking avr-libc-0.2.2 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate avr-libc 0.2.2 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate avr-libc 0.2.2 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate avr-libc 0.2.2
[INFO] finished tweaking crates.io crate avr-libc 0.2.2
[INFO] tweaked toml for crates.io crate avr-libc 0.2.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate avr-libc 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded env_logger v0.8.3
[INFO] [stderr]   Downloaded target-cpu-fetch v0.1.3
[INFO] [stderr]   Downloaded thread_local v1.1.3
[INFO] [stderr]   Downloaded xmltree v0.10.2
[INFO] [stderr]   Downloaded clang-sys v1.1.0
[INFO] [stderr]   Downloaded once_cell v1.5.2
[INFO] [stderr]   Downloaded nom v5.1.2
[INFO] [stderr]   Downloaded json v0.12.4
[INFO] [stderr]   Downloaded bindgen v0.57.0
[INFO] [stderr]   Downloaded avr-mcu v0.3.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5df78819964e92f033b2e4a0ed433387af9d94da573df15e152ce4cdde3547d4
[INFO] running `Command { std: "docker" "start" "-a" "5df78819964e92f033b2e4a0ed433387af9d94da573df15e152ce4cdde3547d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5df78819964e92f033b2e4a0ed433387af9d94da573df15e152ce4cdde3547d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5df78819964e92f033b2e4a0ed433387af9d94da573df15e152ce4cdde3547d4", kill_on_drop: false }`
[INFO] [stdout] 5df78819964e92f033b2e4a0ed433387af9d94da573df15e152ce4cdde3547d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1554bf4caa4e577520d76c5e32699c9bbd7803ca1bf50cda81ec0264ec3b96e
[INFO] running `Command { std: "docker" "start" "-a" "c1554bf4caa4e577520d76c5e32699c9bbd7803ca1bf50cda81ec0264ec3b96e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling clang-sys v1.1.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling bindgen v0.57.0
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling target-cpu-fetch v0.1.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling xmltree v0.10.2
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling avr-mcu v0.3.5
[INFO] [stderr]    Compiling env_logger v0.8.3
[INFO] [stderr]    Compiling avr-libc v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `avr-libc v0.2.2 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/avr-libc-63affa855d881619/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   [warning]: cannot find target JSON file 'x86_64-unknown-linux-gnu.json' - due to limitations it needs to be in the crate root - is it?
[INFO] [stderr]   [warning]: assuming a target CPU name of 'x86_64-unknown-linux-gnu' from the file name of the target spec JSON file
[INFO] [stderr]   thread 'main' panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/avr-mcu-0.3.5/src/load.rs:54:10:
[INFO] [stderr]   no microcontroller with the name 'x86_64-unknown-linux-gnu' found
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55a81da3c465 - std::backtrace_rs::backtrace::libunwind::trace::hf6d84d188eed4942
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stderr]      1:     0x55a81da3c465 - std::backtrace_rs::backtrace::trace_unsynchronized::hb841ab02b27b2a81
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55a81da3c465 - std::sys_common::backtrace::_print_fmt::h7d09263e980d2dc2
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x55a81da3c465 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h8710a3386e66dc13
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x55a81da6535b - core::fmt::rt::Argument::fmt::h56356193ea14b69e
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/core/src/fmt/rt.rs:165:63
[INFO] [stderr]      5:     0x55a81da6535b - core::fmt::write::ha8a35e57fe29df69
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/core/src/fmt/mod.rs:1157:21
[INFO] [stderr]      6:     0x55a81da39a0f - std::io::Write::write_fmt::h070417d35cbd0295
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/io/mod.rs:1832:15
[INFO] [stderr]      7:     0x55a81da3c23e - std::sys_common::backtrace::_print::h98c81ef11000e712
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x55a81da3c23e - std::sys_common::backtrace::print::hb4fda26b0eb411fc
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x55a81da3d719 - std::panicking::default_hook::{{closure}}::h58b999a8a8b72663
[INFO] [stderr]     10:     0x55a81da3d45d - std::panicking::default_hook::h9ee81ffa3eaff881
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/panicking.rs:298:9
[INFO] [stderr]     11:     0x55a81da3dbb3 - std::panicking::rust_panic_with_hook::h7cf1f420e89ee254
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/panicking.rs:795:13
[INFO] [stderr]     12:     0x55a81da3da94 - std::panicking::begin_panic_handler::{{closure}}::h1e92862156407829
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/panicking.rs:664:13
[INFO] [stderr]     13:     0x55a81da3c929 - std::sys_common::backtrace::__rust_end_short_backtrace::hdb9396439049b139
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]     14:     0x55a81da3d7c7 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/panicking.rs:652:5
[INFO] [stderr]     15:     0x55a81d60c703 - core::panicking::panic_fmt::hb6b8317cb2c3be4c
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/core/src/panicking.rs:72:14
[INFO] [stderr]     16:     0x55a81da63b1c - core::panicking::panic_display::h2d91d18479750f89
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/core/src/panicking.rs:263:5
[INFO] [stderr]     17:     0x55a81d60c6cc - core::option::expect_failed::hc5313f17de0d7151
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/core/src/option.rs:1994:5
[INFO] [stderr]     18:     0x55a81d61afe8 - core::option::Option<T>::expect::h4321c9633cf5e1ce
[INFO] [stderr]     19:     0x55a81d61c2f2 - avr_mcu::load::microcontroller::h16f7c5bed0fa215a
[INFO] [stderr]     20:     0x55a81d61d071 - avr_mcu::current::mcu::{{closure}}::hecacc4ad495823eb
[INFO] [stderr]     21:     0x55a81d61adfe - core::option::Option<T>::map::heefe03f31968e521
[INFO] [stderr]     22:     0x55a81d61cff7 - avr_mcu::current::mcu::h8215dc83e33afe26
[INFO] [stderr]     23:     0x55a81d60e642 - core::ops::function::FnOnce::call_once::hd2e4ccdc93bcb939
[INFO] [stderr]     24:     0x55a81d60d186 - lazy_static::lazy::Lazy<T>::get::{{closure}}::ha7166bd7c53e91f5
[INFO] [stderr]     25:     0x55a81d60ddd4 - std::sync::once::Once::call_once::{{closure}}::habc5c731f9b50a13
[INFO] [stderr]     26:     0x55a81d60da5a - std::sys::sync::once::futex::Once::call::hd33044edf9a330cb
[INFO] [stderr]     27:     0x55a81d60dd4b - std::sync::once::Once::call_once::hba381a5dd4c92463
[INFO] [stderr]     28:     0x55a81d6125a7 - <build_script_build::MCU as core::ops::deref::Deref>::deref::h5abd7eb98390481c
[INFO] [stderr]     29:     0x55a81d610133 - build_script_build::main::h57ff9670ed906f8c
[INFO] [stderr]     30:     0x55a81d60e5e3 - core::ops::function::FnOnce::call_once::h714db9c3f3459fd0
[INFO] [stderr]     31:     0x55a81d60d1c6 - std::sys_common::backtrace::__rust_begin_short_backtrace::h20fde9097550cc4a
[INFO] [stderr]     32:     0x55a81d60d849 - std::rt::lang_start::{{closure}}::h6e114b42cb1dfddc
[INFO] [stderr]     33:     0x55a81da35336 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hed2c947f9885a74b
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     34:     0x55a81da35336 - std::panicking::try::do_call::hb89329b1c9c22cc4
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/panicking.rs:559:40
[INFO] [stderr]     35:     0x55a81da35336 - std::panicking::try::h32506f612ff970ae
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/panicking.rs:523:19
[INFO] [stderr]     36:     0x55a81da35336 - std::panic::catch_unwind::hb921c12c6fd21966
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/panic.rs:149:14
[INFO] [stderr]     37:     0x55a81da35336 - std::rt::lang_start_internal::{{closure}}::h525d7c9c8d9957db
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/rt.rs:141:48
[INFO] [stderr]     38:     0x55a81da35336 - std::panicking::try::do_call::hc05b1198989502ae
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/panicking.rs:559:40
[INFO] [stderr]     39:     0x55a81da35336 - std::panicking::try::h4ecd1dd6f6f1e3ba
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/panicking.rs:523:19
[INFO] [stderr]     40:     0x55a81da35336 - std::panic::catch_unwind::h92b0390d9e8eb6ea
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/panic.rs:149:14
[INFO] [stderr]     41:     0x55a81da35336 - std::rt::lang_start_internal::he4964f7a9f7ed816
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/rt.rs:141:20
[INFO] [stderr]     42:     0x55a81d60d827 - std::rt::lang_start::hf344e7b1864e3053
[INFO] [stderr]     43:     0x55a81d612605 - main
[INFO] [stderr]     44:     0x7fae1dabcd90 - <unknown>
[INFO] [stderr]     45:     0x7fae1dabce40 - __libc_start_main
[INFO] [stderr]     46:     0x55a81d60d055 - _start
[INFO] [stderr]     47:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "c1554bf4caa4e577520d76c5e32699c9bbd7803ca1bf50cda81ec0264ec3b96e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1554bf4caa4e577520d76c5e32699c9bbd7803ca1bf50cda81ec0264ec3b96e", kill_on_drop: false }`
[INFO] [stdout] c1554bf4caa4e577520d76c5e32699c9bbd7803ca1bf50cda81ec0264ec3b96e
