[INFO] crate riot-sys 0.2.1 is already in cache
[INFO] extracting crate riot-sys 0.2.1 into work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/riot-sys/0.2.1
[INFO] extracting crate riot-sys 0.2.1 into work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/riot-sys/0.2.1
[INFO] validating manifest of riot-sys-0.2.1 on toolchain master#d99a320cba42f661aebfa1293b7b2ec3603dda75
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of riot-sys-0.2.1 on toolchain try#e70472fc501b855c9080f3772432c10fe20b8866
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing riot-sys-0.2.1
[INFO] finished frobbing riot-sys-0.2.1
[INFO] frobbed toml for riot-sys-0.2.1 written to work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/riot-sys/0.2.1/Cargo.toml
[INFO] started frobbing riot-sys-0.2.1
[INFO] finished frobbing riot-sys-0.2.1
[INFO] frobbed toml for riot-sys-0.2.1 written to work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/riot-sys/0.2.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking riot-sys-0.2.1 against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/riot-sys/0.2.1:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] edfbb341d2202ae98639192364640b64fa04e749fb018de7dbfafc731481330b
[INFO] running `"docker" "start" "-a" "edfbb341d2202ae98639192364640b64fa04e749fb018de7dbfafc731481330b"`
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling riot-sys v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] error: failed to run custom build command for `riot-sys v0.2.1 (/opt/crater/workdir)`
[INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/riot-sys-15a42979d488d96c/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'Please pass in RIOT_CFLAGS; see README.md for details.: NotPresent', src/libcore/result.rs:1009:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x563955dc1d43 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h95ab028030b20adf
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
[INFO] [stderr]    1:     0x563955dbdc98 - std::sys_common::backtrace::_print::h94b63df5fa27ebe7
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:72
[INFO] [stderr]    2:     0x563955dc0cb2 - std::panicking::default_hook::{{closure}}::hb1fe25bfd71b52f7
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:60
[INFO] [stderr]                                at src/libstd/panicking.rs:210
[INFO] [stderr]    3:     0x563955dc0a24 - std::panicking::default_hook::h52a0c0f430a98639
[INFO] [stderr]                                at src/libstd/panicking.rs:225
[INFO] [stderr]    4:     0x563955dc13c0 - std::panicking::rust_panic_with_hook::h66fbfcc2ae9f165e
[INFO] [stderr]                                at src/libstd/panicking.rs:488
[INFO] [stderr]    5:     0x563955dc0f41 - std::panicking::continue_panic_fmt::haded7f0d2b8f33e8
[INFO] [stderr]                                at src/libstd/panicking.rs:395
[INFO] [stderr]    6:     0x563955dc0e25 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:322
[INFO] [stderr]    7:     0x563955ddd05c - core::panicking::panic_fmt::hd60b4e7adef102a3
[INFO] [stderr]                                at src/libcore/panicking.rs:95
[INFO] [stderr]    8:     0x563955c6a890 - core::result::unwrap_failed::ha3eb1a6a25410d4b
[INFO] [stderr]                                at /rustc/d99a320cba42f661aebfa1293b7b2ec3603dda75/src/libcore/macros.rs:26
[INFO] [stderr]    9:     0x56395576e850 - <core::result::Result<T, E>>::expect::hb745801fb1feaac2
[INFO] [stderr]                                at /rustc/d99a320cba42f661aebfa1293b7b2ec3603dda75/src/libcore/result.rs:835
[INFO] [stderr]   10:     0x56395576e0bd - build_script_build::main::h12f4ec5eba84b9b3
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:9
[INFO] [stderr]   11:     0x56395576dd7f - std::rt::lang_start::{{closure}}::hd1bbeb9c1276517e
[INFO] [stderr]                                at /rustc/d99a320cba42f661aebfa1293b7b2ec3603dda75/src/libstd/rt.rs:74
[INFO] [stderr]   12:     0x563955dc0dc2 - std::panicking::try::do_call::h435c622baed70d98
[INFO] [stderr]                                at src/libstd/rt.rs:59
[INFO] [stderr]                                at src/libstd/panicking.rs:307
[INFO] [stderr]   13:     0x563955dd4809 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:102
[INFO] [stderr]   14:     0x563955dc1793 - std::rt::lang_start_internal::hbe17adba6302f4ef
[INFO] [stderr]                                at src/libstd/panicking.rs:286
[INFO] [stderr]                                at src/libstd/panic.rs:398
[INFO] [stderr]                                at src/libstd/rt.rs:58
[INFO] [stderr]   15:     0x56395576dd58 - std::rt::lang_start::h9931599cbea7eddd
[INFO] [stderr]                                at /rustc/d99a320cba42f661aebfa1293b7b2ec3603dda75/src/libstd/rt.rs:74
[INFO] [stderr]   16:     0x56395576e619 - main
[INFO] [stderr]   17:     0x7fb1eee0a2e0 - __libc_start_main
[INFO] [stderr]   18:     0x56395576b2a9 - _start
[INFO] [stderr]   19:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "edfbb341d2202ae98639192364640b64fa04e749fb018de7dbfafc731481330b"`
[INFO] running `"docker" "rm" "-f" "edfbb341d2202ae98639192364640b64fa04e749fb018de7dbfafc731481330b"`
[INFO] [stdout] edfbb341d2202ae98639192364640b64fa04e749fb018de7dbfafc731481330b