[INFO] fetching crate avr-libc 0.2.0...
[INFO] testing avr-libc-0.2.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate avr-libc 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate avr-libc 0.2.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "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-3/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" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded avr-mcu v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b97a9209709aed4a3d3f1f4da8210ef037f40612250b1f597b9c07da8bb1de3b
[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" "b97a9209709aed4a3d3f1f4da8210ef037f40612250b1f597b9c07da8bb1de3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b97a9209709aed4a3d3f1f4da8210ef037f40612250b1f597b9c07da8bb1de3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b97a9209709aed4a3d3f1f4da8210ef037f40612250b1f597b9c07da8bb1de3b", kill_on_drop: false }`
[INFO] [stdout] b97a9209709aed4a3d3f1f4da8210ef037f40612250b1f597b9c07da8bb1de3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 020a22e316fe81cda6bc22713ceb986ff2a6273e08708244dba6a7eebc594fd9
[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" "020a22e316fe81cda6bc22713ceb986ff2a6273e08708244dba6a7eebc594fd9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling bindgen v0.54.1
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling xmltree v0.10.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling target-cpu-fetch v0.1.1
[INFO] [stderr]    Compiling avr-mcu v0.3.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling cexpr v0.4.0
[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-60fe90065df43e32/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:     0x560382377325 - backtrace::backtrace::libunwind::trace::h5e2646fa3eddf2ea
[INFO] [stderr]                                  at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]      1:     0x560382377325 - backtrace::backtrace::trace_unsynchronized::hb95dd7f77ce47877
[INFO] [stderr]                                  at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x560382377325 - std::sys_common::backtrace::_print_fmt::h5e71b67af43fd70d
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]      3:     0x560382377325 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hdb4a83d2b61107e5
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]      4:     0x5603823a1a9c - core::fmt::write::ha20e7262fa3e8a7a
[INFO] [stderr]                                  at src/libcore/fmt/mod.rs:1076
[INFO] [stderr]      5:     0x5603823735e2 - std::io::Write::write_fmt::h1aebfe8a5a79e36d
[INFO] [stderr]                                  at src/libstd/io/mod.rs:1537
[INFO] [stderr]      6:     0x560382379a30 - std::sys_common::backtrace::_print::h9c07314cc66ba539
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]      7:     0x560382379a30 - std::sys_common::backtrace::print::hd1fd65f49a2d8544
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]      8:     0x560382379a30 - std::panicking::default_hook::{{closure}}::h222da46485ab36fc
[INFO] [stderr]                                  at src/libstd/panicking.rs:198
[INFO] [stderr]      9:     0x56038237977c - std::panicking::default_hook::hc5868949d129ed00
[INFO] [stderr]                                  at src/libstd/panicking.rs:217
[INFO] [stderr]     10:     0x56038237a073 - std::panicking::rust_panic_with_hook::h26a6ab8b0993c0c8
[INFO] [stderr]                                  at src/libstd/panicking.rs:526
[INFO] [stderr]     11:     0x560382379c6b - rust_begin_unwind
[INFO] [stderr]                                  at src/libstd/panicking.rs:437
[INFO] [stderr]     12:     0x5603823a0151 - core::panicking::panic_fmt::h17139c2000299725
[INFO] [stderr]                                  at src/libcore/panicking.rs:85
[INFO] [stderr]     13:     0x56038239fee3 - core::option::expect_failed::h64f5a96368d1b71b
[INFO] [stderr]                                  at src/libcore/option.rs:1261
[INFO] [stderr]     14:     0x560381db818e - core::option::Option<T>::expect::h357b997c30a134a7
[INFO] [stderr]                                  at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libcore/option.rs:344
[INFO] [stderr]     15:     0x560381d9ee42 - avr_mcu::load::microcontroller::hf555431e7001a487
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/avr-mcu-0.3.3/src/load.rs:50
[INFO] [stderr]     16:     0x560381d9fd0e - avr_mcu::current::mcu::{{closure}}::ha5ed051ff89ff665
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/avr-mcu-0.3.3/src/current.rs:13
[INFO] [stderr]     17:     0x560381db762c - core::option::Option<T>::map::h3d2bd6bb3fb301dd
[INFO] [stderr]                                  at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libcore/option.rs:453
[INFO] [stderr]     18:     0x560381d9fcae - avr_mcu::current::mcu::h7c0954065b071be9
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/avr-mcu-0.3.3/src/current.rs:13
[INFO] [stderr]     19:     0x560381d88b11 - <build_script_build::MCU as core::ops::deref::Deref>::deref::__static_ref_initialize::h87ed76d2ed97a6bd
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:31
[INFO] [stderr]     20:     0x560381d88b11 - core::ops::function::FnOnce::call_once::hfe2c8e89c0f5563a
[INFO] [stderr]                                  at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libcore/ops/function.rs:233
[INFO] [stderr]     21:     0x560381d88974 - lazy_static::lazy::Lazy<T>::get::{{closure}}::h2fe25ed566cbad41
[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:     0x560381d8acf2 - std::sync::once::Once::call_once::{{closure}}::he4d49f6f7f60dc11
[INFO] [stderr]                                  at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libstd/sync/once.rs:264
[INFO] [stderr]     23:     0x560382376d1a - std::sync::once::Once::call_inner::h166ab676aee3f529
[INFO] [stderr]                                  at src/libstd/sync/once.rs:416
[INFO] [stderr]     24:     0x560381d8ac71 - std::sync::once::Once::call_once::h4cc2998a68084dbf
[INFO] [stderr]                                  at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libstd/sync/once.rs:264
[INFO] [stderr]     25:     0x560381d87a37 - lazy_static::lazy::Lazy<T>::get::h92e01a223f4f5613
[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:     0x560381d87a37 - <build_script_build::MCU as core::ops::deref::Deref>::deref::__stability::h993347b974d730b9
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.4.0/src/lib.rs:142
[INFO] [stderr]     27:     0x560381d87a37 - <build_script_build::MCU as core::ops::deref::Deref>::deref::h3cd0997710df5472
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.4.0/src/lib.rs:144
[INFO] [stderr]     28:     0x560381d852e6 - build_script_build::main::h0d1aed87e72a31e2
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:42
[INFO] [stderr]     29:     0x560381d884db - std::rt::lang_start::{{closure}}::h7f9ffbf9e21bf2cf
[INFO] [stderr]                                  at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libstd/rt.rs:67
[INFO] [stderr]     30:     0x56038237a443 - std::rt::lang_start_internal::{{closure}}::h84a998219831fa70
[INFO] [stderr]                                  at src/libstd/rt.rs:52
[INFO] [stderr]     31:     0x56038237a443 - std::panicking::try::do_call::he8e1d689a3e26def
[INFO] [stderr]                                  at src/libstd/panicking.rs:348
[INFO] [stderr]     32:     0x56038237a443 - std::panicking::try::h264b6eebc2fa7bbf
[INFO] [stderr]                                  at src/libstd/panicking.rs:325
[INFO] [stderr]     33:     0x56038237a443 - std::panic::catch_unwind::hbf28fafa723b2128
[INFO] [stderr]                                  at src/libstd/panic.rs:394
[INFO] [stderr]     34:     0x56038237a443 - std::rt::lang_start_internal::he959aa59bc3ec202
[INFO] [stderr]                                  at src/libstd/rt.rs:51
[INFO] [stderr]     35:     0x560381d884b7 - std::rt::lang_start::h9f1b01b4534dde0e
[INFO] [stderr]                                  at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libstd/rt.rs:67
[INFO] [stderr]     36:     0x560381d87aca - main
[INFO] [stderr]     37:     0x7f09c5c0d0b3 - __libc_start_main
[INFO] [stderr]     38:     0x560381d851ae - _start
[INFO] [stderr]     39:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "020a22e316fe81cda6bc22713ceb986ff2a6273e08708244dba6a7eebc594fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "020a22e316fe81cda6bc22713ceb986ff2a6273e08708244dba6a7eebc594fd9", kill_on_drop: false }`
[INFO] [stdout] 020a22e316fe81cda6bc22713ceb986ff2a6273e08708244dba6a7eebc594fd9