[INFO] fetching crate avr-libc 0.2.0...
[INFO] checking avr-libc-0.2.0 against master#119d2a1a98fe87d4ae6cabf12134a0ef2fb95851 for pr-75180
[INFO] extracting crate avr-libc 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate avr-libc 0.2.0 on toolchain 119d2a1a98fe87d4ae6cabf12134a0ef2fb95851
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate avr-libc 0.2.0
[INFO] finished tweaking crates.io crate avr-libc 0.2.0
[INFO] tweaked toml for crates.io crate avr-libc 0.2.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate avr-libc 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a9c334c3dcd03f0a0fbd3b301f1d713195d0346f3503b5e28cec52e4ff495f4
[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" "8a9c334c3dcd03f0a0fbd3b301f1d713195d0346f3503b5e28cec52e4ff495f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a9c334c3dcd03f0a0fbd3b301f1d713195d0346f3503b5e28cec52e4ff495f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a9c334c3dcd03f0a0fbd3b301f1d713195d0346f3503b5e28cec52e4ff495f4", kill_on_drop: false }`
[INFO] [stdout] 8a9c334c3dcd03f0a0fbd3b301f1d713195d0346f3503b5e28cec52e4ff495f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "check" "--frozen" "--all" "--all-targets" "--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] 55c451abd379f7def2ac2d9b7316674fbe7a07f17f944ae929945254fffbe04a
[INFO] running `Command { std: "docker" "start" "-a" "55c451abd379f7def2ac2d9b7316674fbe7a07f17f944ae929945254fffbe04a", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling bindgen v0.54.1
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling xmltree v0.10.1
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling target-cpu-fetch v0.1.1
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling avr-mcu v0.3.3
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling avr-libc v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `avr-libc v0.2.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/avr-libc-069a30d2d7ae29be/build-script-build` (exit code: 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-0.3.3/src/load.rs:54:10
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55b99a9fffcf - std::backtrace_rs::backtrace::libunwind::trace::h21c0966c343fddd8
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]      1:     0x55b99a9fffcf - std::backtrace_rs::backtrace::trace_unsynchronized::h62cde0754779ae3a
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x55b99a9fffcf - std::sys_common::backtrace::_print_fmt::hb2d70198918acf1c
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/sys_common/backtrace.rs:77
[INFO] [stderr]      3:     0x55b99a9fffcf - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h5a9d4ddd4d99b877
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]      4:     0x55b99aa268cc - core::fmt::write::h3a043650ba7bf668
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/core/src/fmt/mod.rs:1117
[INFO] [stderr]      5:     0x55b99a9fc3d5 - std::io::Write::write_fmt::h2dbf1bb0d9f42142
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/io/mod.rs:1510
[INFO] [stderr]      6:     0x55b99aa027c0 - std::sys_common::backtrace::_print::h1091565a54a3c462
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]      7:     0x55b99aa027c0 - std::sys_common::backtrace::print::hc9759e13a502cda2
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]      8:     0x55b99aa027c0 - std::panicking::default_hook::{{closure}}::hd35b8516a1d88160
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/panicking.rs:198
[INFO] [stderr]      9:     0x55b99aa0250c - std::panicking::default_hook::h0dcf88ad4d72ec5e
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/panicking.rs:217
[INFO] [stderr]     10:     0x55b99aa02e03 - std::panicking::rust_panic_with_hook::h81c308f7accbe523
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/panicking.rs:526
[INFO] [stderr]     11:     0x55b99aa029fb - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/panicking.rs:437
[INFO] [stderr]     12:     0x55b99aa24f81 - core::panicking::panic_fmt::h019ad16a92ccd092
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/core/src/panicking.rs:85
[INFO] [stderr]     13:     0x55b99aa24d13 - core::option::expect_failed::he4d89f45e184f5ae
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/core/src/option.rs:1266
[INFO] [stderr]     14:     0x55b99a42e17e - core::option::Option<T>::expect::h6e9060076b2851fd
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/core/src/option.rs:347
[INFO] [stderr]     15:     0x55b99a417b02 - avr_mcu::load::microcontroller::h2e3c635d14e97442
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/avr-mcu-0.3.3/src/load.rs:50
[INFO] [stderr]     16:     0x55b99a4189ce - avr_mcu::current::mcu::{{closure}}::had3a2779a887383a
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/avr-mcu-0.3.3/src/current.rs:13
[INFO] [stderr]     17:     0x55b99a42df6c - core::option::Option<T>::map::he53042ac8940f797
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/core/src/option.rs:457
[INFO] [stderr]     18:     0x55b99a41896e - avr_mcu::current::mcu::h3ca9192ae62d4823
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/avr-mcu-0.3.3/src/current.rs:13
[INFO] [stderr]     19:     0x55b99a3ff9b1 - <build_script_build::MCU as core::ops::deref::Deref>::deref::__static_ref_initialize::hb69dfbb6a9e54a5e
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:31
[INFO] [stderr]     20:     0x55b99a3ff9b1 - core::ops::function::FnOnce::call_once::h7991a16d0055a562
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/core/src/ops/function.rs:233
[INFO] [stderr]     21:     0x55b99a3ff7e4 - lazy_static::lazy::Lazy<T>::get::{{closure}}::he4d016d86dff37fd
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.4.0/src/inline_lazy.rs:31
[INFO] [stderr]     22:     0x55b99a40001e - std::sync::once::Once::call_once::{{closure}}::h2283eff4b0c228ce
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/sync/once.rs:265
[INFO] [stderr]     23:     0x55b99a9ff985 - std::sync::once::Once::call_inner::h32a4911b760a164c
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/sync/once.rs:421
[INFO] [stderr]     24:     0x55b99a3fffa1 - std::sync::once::Once::call_once::h9af683b2ddbd799e
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/sync/once.rs:265
[INFO] [stderr]     25:     0x55b99a3fe957 - lazy_static::lazy::Lazy<T>::get::h48948d8f19872da7
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.4.0/src/inline_lazy.rs:30
[INFO] [stderr]     26:     0x55b99a3fe957 - <build_script_build::MCU as core::ops::deref::Deref>::deref::__stability::h3185643862c17bf9
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.4.0/src/lib.rs:142
[INFO] [stderr]     27:     0x55b99a3fe957 - <build_script_build::MCU as core::ops::deref::Deref>::deref::ha94c36d9bf85f7c6
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.4.0/src/lib.rs:144
[INFO] [stderr]     28:     0x55b99a3fc206 - build_script_build::main::h0d00190dacf26cec
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:42
[INFO] [stderr]     29:     0x55b99a3ff88b - std::rt::lang_start::{{closure}}::hb7c72aa6107f93ec
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/rt.rs:67
[INFO] [stderr]     30:     0x55b99aa03216 - std::rt::lang_start_internal::{{closure}}::hdb90dc0481c9e8f6
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/rt.rs:52
[INFO] [stderr]     31:     0x55b99aa03216 - std::panicking::try::do_call::he0af14a67f26ea71
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/panicking.rs:348
[INFO] [stderr]     32:     0x55b99aa03216 - std::panicking::try::h87d5f0e2c2fee1c5
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/panicking.rs:325
[INFO] [stderr]     33:     0x55b99aa03216 - std::panic::catch_unwind::he9266eec484f0287
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/panic.rs:394
[INFO] [stderr]     34:     0x55b99aa03216 - std::rt::lang_start_internal::hb54283a40e32dc37
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/rt.rs:51
[INFO] [stderr]     35:     0x55b99a3ff867 - std::rt::lang_start::hd42c3230517727be
[INFO] [stderr]                                  at /rustc/119d2a1a98fe87d4ae6cabf12134a0ef2fb95851/library/std/src/rt.rs:67
[INFO] [stderr]     36:     0x55b99a3fe9ea - main
[INFO] [stderr]     37:     0x7fe2616520b3 - __libc_start_main
[INFO] [stderr]     38:     0x55b99a3fc0ce - _start
[INFO] [stderr]     39:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "55c451abd379f7def2ac2d9b7316674fbe7a07f17f944ae929945254fffbe04a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55c451abd379f7def2ac2d9b7316674fbe7a07f17f944ae929945254fffbe04a", kill_on_drop: false }`
[INFO] [stdout] 55c451abd379f7def2ac2d9b7316674fbe7a07f17f944ae929945254fffbe04a