[INFO] fetching crate avr-libc 0.1.3...
[INFO] extracting crate avr-libc 0.1.3 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/avr-libc/0.1.3
[INFO] extracting crate avr-libc 0.1.3 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/avr-libc/0.1.3
[INFO] validating manifest of avr-libc-0.1.3 on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of avr-libc-0.1.3 on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing avr-libc-0.1.3
[INFO] finished frobbing avr-libc-0.1.3
[INFO] frobbed toml for avr-libc-0.1.3 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/avr-libc/0.1.3/Cargo.toml
[INFO] started frobbing avr-libc-0.1.3
[INFO] finished frobbing avr-libc-0.1.3
[INFO] frobbed toml for avr-libc-0.1.3 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/avr-libc/0.1.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking avr-libc-0.1.3 against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-0/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/avr-libc/0.1.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a255d9f41711c833be2ea8018e023ceaa56b6c72d205940daf5aa42ee4d6a70e
[INFO] running `"docker" "start" "-a" "a255d9f41711c833be2ea8018e023ceaa56b6c72d205940daf5aa42ee4d6a70e"`
[INFO] [stderr]    Compiling xml-rs v0.4.1
[INFO] [stderr]    Compiling xmltree v0.4.0
[INFO] [stderr]    Compiling avr-mcu v0.2.6
[INFO] [stderr]    Compiling avr-libc v0.1.3 (/opt/crater/workdir)
[INFO] [stderr] error: failed to run custom build command for `avr-libc v0.1.3 (/opt/crater/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/avr-libc-29de429d5d803515/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] cargo:warning=not targeting a specific microcontroller, create a custom target specification to enable mcu-specific functionality
[INFO] [stderr] avr-libc not yet built for 'avr2', building now
[INFO] [stderr] Bootstrapping avr-libc
[INFO] [stderr] "sh" "bootstrap"
[INFO] [stderr] Generating source directories:
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] + rm -rf avr/lib
[INFO] [stderr] + ./devtools/gen-avr-lib-tree.sh
[INFO] [stderr] mkdir: cannot create directory 'avr': Read-only file system
[INFO] [stderr] mkdir: cannot create directory 'avr/lib': No such file or directory
[INFO] [stderr] ./devtools/gen-avr-lib-tree.sh: 414: cd: can't cd to avr/lib
[INFO] [stderr] + rm -rf autom4te.cache
[INFO] [stderr] + aclocal
[INFO] [stderr] autom4te: cannot create autom4te.cache: No such file or directory
[INFO] [stderr] aclocal: error: echo failed with exit status: 1
[INFO] [stderr] + autoheader
[INFO] [stderr] autom4te: cannot create autom4te.cache: No such file or directory
[INFO] [stderr] autoheader: '/usr/bin/autom4te' failed with exit status: 1
[INFO] [stderr] + autoconf
[INFO] [stderr] autom4te: cannot create autom4te.cache: No such file or directory
[INFO] [stderr] + automake --foreign --add-missing --copy
[INFO] [stderr] autom4te: cannot create autom4te.cache: No such file or directory
[INFO] [stderr] automake: error: autoconf failed with exit status: 1
[INFO] [stderr] thread 'main' panicked at 'failed to bootstrap', build.rs:77:9
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x563aaa1eeccb - backtrace::backtrace::libunwind::trace::h00e2f01ca6755a19
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x563aaa1eeccb - backtrace::backtrace::trace_unsynchronized::hc2e55f9123c24578
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x563aaa1eeccb - std::sys_common::backtrace::_print::h878d975ca669e1b4
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x563aaa1eeccb - std::sys_common::backtrace::print::h1b2f6b4885b021f3
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x563aaa1eeccb - std::panicking::default_hook::{{closure}}::he9ab19abef5c787f
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    5:     0x563aaa1ee9cc - std::panicking::default_hook::h9b73316e8577c3fa
[INFO] [stderr]                                at src/libstd/panicking.rs:212
[INFO] [stderr]    6:     0x563aaa1ef440 - std::panicking::rust_panic_with_hook::he062866264d328c5
[INFO] [stderr]                                at src/libstd/panicking.rs:475
[INFO] [stderr]    7:     0x563aaa159298 - std::panicking::begin_panic::h7c813e5abe0451ff
[INFO] [stderr]                                at /rustc/d3301713b54af69ca9de941a8c6b0d8287dbd6df/src/libstd/panicking.rs:409
[INFO] [stderr]    8:     0x563aa9b384e8 - build_script_build::bootstrap::hda83339c38de7e74
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:77
[INFO] [stderr]    9:     0x563aa9b3805a - build_script_build::main::h350c4508c815f6d3
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:54
[INFO] [stderr]   10:     0x563aa9b3b7d0 - std::rt::lang_start::{{closure}}::h17433d6c66ab370a
[INFO] [stderr]                                at /rustc/d3301713b54af69ca9de941a8c6b0d8287dbd6df/src/libstd/rt.rs:64
[INFO] [stderr]   11:     0x563aaa1eee43 - std::rt::lang_start_internal::{{closure}}::hac4055a4b24c3806
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   12:     0x563aaa1eee43 - std::panicking::try::do_call::h0bdfdef338a7b8de
[INFO] [stderr]                                at src/libstd/panicking.rs:294
[INFO] [stderr]   13:     0x563aaa1f6f2a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stderr]   14:     0x563aaa1ef94d - std::panicking::try::h5986cc11523af350
[INFO] [stderr]                                at src/libstd/panicking.rs:273
[INFO] [stderr]   15:     0x563aaa1ef94d - std::panic::catch_unwind::h5e6e2d11127cecca
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]   16:     0x563aaa1ef94d - std::rt::lang_start_internal::hd1ad303a81183dc4
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   17:     0x563aa9b3b7a9 - std::rt::lang_start::he1a1b4755c26f5d3
[INFO] [stderr]                                at /rustc/d3301713b54af69ca9de941a8c6b0d8287dbd6df/src/libstd/rt.rs:64
[INFO] [stderr]   18:     0x563aa9b3a2fa - main
[INFO] [stderr]   19:     0x7f54c10632e1 - __libc_start_main
[INFO] [stderr]   20:     0x563aa9b32c0a - _start
[INFO] [stderr]   21:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "a255d9f41711c833be2ea8018e023ceaa56b6c72d205940daf5aa42ee4d6a70e"`
[INFO] running `"docker" "rm" "-f" "a255d9f41711c833be2ea8018e023ceaa56b6c72d205940daf5aa42ee4d6a70e"`
[INFO] [stdout] a255d9f41711c833be2ea8018e023ceaa56b6c72d205940daf5aa42ee4d6a70e