[INFO] fetching crate avr-libc 0.2.2...
[INFO] documenting avr-libc-0.2.2 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate avr-libc 0.2.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate avr-libc 0.2.2 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "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-6-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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex v1.4.3
[INFO] [stderr]   Downloaded thread_local v1.1.3
[INFO] [stderr]   Downloaded once_cell v1.5.2
[INFO] [stderr]   Downloaded libc v0.2.86
[INFO] [stderr]   Downloaded regex-syntax v0.6.22
[INFO] [stderr]   Downloaded bindgen v0.57.0
[INFO] [stderr]   Downloaded glob v0.3.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.24
[INFO] [stderr]   Downloaded version_check v0.9.2
[INFO] [stderr]   Downloaded env_logger v0.8.3
[INFO] [stderr]   Downloaded target-cpu-fetch v0.1.3
[INFO] [stderr]   Downloaded xmltree v0.10.2
[INFO] [stderr]   Downloaded unicode-xid v0.2.1
[INFO] [stderr]   Downloaded json v0.12.4
[INFO] [stderr]   Downloaded clang-sys v1.1.0
[INFO] [stderr]   Downloaded nom v5.1.2
[INFO] [stderr]   Downloaded avr-mcu v0.3.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5afb43a8c77212e7c01740fecfcf2fe1a402becd1c1a6c0192c7dc408ab2a39c
[INFO] running `Command { std: "docker" "start" "-a" "5afb43a8c77212e7c01740fecfcf2fe1a402becd1c1a6c0192c7dc408ab2a39c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5afb43a8c77212e7c01740fecfcf2fe1a402becd1c1a6c0192c7dc408ab2a39c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5afb43a8c77212e7c01740fecfcf2fe1a402becd1c1a6c0192c7dc408ab2a39c", kill_on_drop: false }`
[INFO] [stdout] 5afb43a8c77212e7c01740fecfcf2fe1a402becd1c1a6c0192c7dc408ab2a39c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ee2190bdd154790f720b4d139ff3ebdc938f425aa2c854bba6d1851d8329e6b
[INFO] running `Command { std: "docker" "start" "-a" "2ee2190bdd154790f720b4d139ff3ebdc938f425aa2c854bba6d1851d8329e6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling clang-sys v1.1.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling termcolor v1.1.2
[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 bindgen v0.57.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling target-cpu-fetch v0.1.3
[INFO] [stderr]    Compiling xmltree v0.10.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling env_logger v0.8.3
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling avr-mcu v0.3.5
[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-f822dbd03586140c/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 'no microcontroller with the name 'x86_64-unknown-linux-gnu' found', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/avr-mcu-0.3.5/src/load.rs:54:10
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x56378eaa773a - std::backtrace_rs::backtrace::libunwind::trace::ha9053a9a07ca49cb
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stderr]      1:     0x56378eaa773a - std::backtrace_rs::backtrace::trace_unsynchronized::h9c2852a457ad564e
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x56378eaa773a - std::sys_common::backtrace::_print_fmt::h457936fbfaa0070f
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stderr]      3:     0x56378eaa773a - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h5779d7bf7f70cb0c
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x56378eacd50e - core::fmt::write::h5a4baaff1bcd3eb5
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/fmt/mod.rs:1232:17
[INFO] [stderr]      5:     0x56378eaa48b5 - std::io::Write::write_fmt::h4bc1f301cb9e9cce
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/io/mod.rs:1684:15
[INFO] [stderr]      6:     0x56378eaa7505 - std::sys_common::backtrace::_print::h5fcdc36060f177e8
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      7:     0x56378eaa7505 - std::sys_common::backtrace::print::h54ca9458b876c8bf
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      8:     0x56378eaa8edf - std::panicking::default_hook::{{closure}}::hbe471161c7664ed6
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:271:22
[INFO] [stderr]      9:     0x56378eaa8c1b - std::panicking::default_hook::ha3500da57aa4ac4f
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:290:9
[INFO] [stderr]     10:     0x56378eaa9488 - std::panicking::rust_panic_with_hook::h50c09d000dc561d2
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:692:13
[INFO] [stderr]     11:     0x56378eaa9389 - std::panicking::begin_panic_handler::{{closure}}::h9e2b2176e00e0d9c
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:583:13
[INFO] [stderr]     12:     0x56378eaa7ba6 - std::sys_common::backtrace::__rust_end_short_backtrace::h5739b8e512c09d02
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:150:18
[INFO] [stderr]     13:     0x56378eaa9092 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:579:5
[INFO] [stderr]     14:     0x56378e63ca33 - core::panicking::panic_fmt::hf33a1475b4dc5c3e
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/panicking.rs:64:14
[INFO] [stderr]     15:     0x56378eacbb21 - core::panicking::panic_display::ha103dd28e5023b08
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/panicking.rs:147:5
[INFO] [stderr]     16:     0x56378eacbacb - core::panicking::panic_str::h940bf021f492dc8c
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/panicking.rs:131:5
[INFO] [stderr]     17:     0x56378e63c9f6 - core::option::expect_failed::h09b982639336e7ea
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/option.rs:2045:5
[INFO] [stderr]     18:     0x56378e650ef3 - core::option::Option<T>::expect::he81886eccce8ce5c
[INFO] [stderr]     19:     0x56378e656465 - avr_mcu::load::microcontroller::h4c6b4f29f80ad758
[INFO] [stderr]     20:     0x56378e659001 - avr_mcu::current::mcu::{{closure}}::hd7acc69d03cdd525
[INFO] [stderr]     21:     0x56378e6507e5 - core::option::Option<T>::map::h4886dcb286483231
[INFO] [stderr]     22:     0x56378e658f87 - avr_mcu::current::mcu::h609f78968dcc44cf
[INFO] [stderr]     23:     0x56378e63f802 - core::ops::function::FnOnce::call_once::h583ab9cce7718100
[INFO] [stderr]     24:     0x56378e6400b6 - lazy_static::lazy::Lazy<T>::get::{{closure}}::h4e47f2ab165292bd
[INFO] [stderr]     25:     0x56378e640081 - std::sync::once::Once::call_once::{{closure}}::h16515905ac15417f
[INFO] [stderr]     26:     0x56378e64177c - std::sys_common::once::futex::Once::call::h5cc8701cd2b5f501
[INFO] [stderr]     27:     0x56378e63ffeb - std::sync::once::Once::call_once::h2ed245d41c5b4094
[INFO] [stderr]     28:     0x56378e63f3e7 - <build_script_build::MCU as core::ops::deref::Deref>::deref::hd0a9f1140fb94a11
[INFO] [stderr]     29:     0x56378e63d1f3 - build_script_build::main::h802490da6b93d814
[INFO] [stderr]     30:     0x56378e63f7e3 - core::ops::function::FnOnce::call_once::h29f1d9ee446f11e5
[INFO] [stderr]     31:     0x56378e6400f9 - std::sys_common::backtrace::__rust_begin_short_backtrace::h5798a272a3fa828e
[INFO] [stderr]     32:     0x56378e641d49 - std::rt::lang_start::{{closure}}::h2a4c25bd22809d72
[INFO] [stderr]     33:     0x56378eaa068c - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd6efcd3bec896f2c
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/ops/function.rs:287:13
[INFO] [stderr]     34:     0x56378eaa068c - std::panicking::try::do_call::hce04e543bb1f4cbb
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:487:40
[INFO] [stderr]     35:     0x56378eaa068c - std::panicking::try::h3342dd4e1f680968
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:451:19
[INFO] [stderr]     36:     0x56378eaa068c - std::panic::catch_unwind::h148ce1e59ac0cee7
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panic.rs:140:14
[INFO] [stderr]     37:     0x56378eaa068c - std::rt::lang_start_internal::{{closure}}::h25f9dda2057a67fe
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/rt.rs:148:48
[INFO] [stderr]     38:     0x56378eaa068c - std::panicking::try::do_call::h7caaaeaf9401650b
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:487:40
[INFO] [stderr]     39:     0x56378eaa068c - std::panicking::try::he7d15285746cbbc2
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:451:19
[INFO] [stderr]     40:     0x56378eaa068c - std::panic::catch_unwind::h89fb4f50c0301fe0
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panic.rs:140:14
[INFO] [stderr]     41:     0x56378eaa068c - std::rt::lang_start_internal::h078acd489417d3c1
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/rt.rs:148:20
[INFO] [stderr]     42:     0x56378e641d27 - std::rt::lang_start::h101b641826ea0439
[INFO] [stderr]     43:     0x56378e63f445 - main
[INFO] [stderr]     44:     0x7fe338201d90 - <unknown>
[INFO] [stderr]     45:     0x7fe338201e40 - __libc_start_main
[INFO] [stderr]     46:     0x56378e63d0c5 - _start
[INFO] [stderr]     47:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "2ee2190bdd154790f720b4d139ff3ebdc938f425aa2c854bba6d1851d8329e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ee2190bdd154790f720b4d139ff3ebdc938f425aa2c854bba6d1851d8329e6b", kill_on_drop: false }`
[INFO] [stdout] 2ee2190bdd154790f720b4d139ff3ebdc938f425aa2c854bba6d1851d8329e6b
