[INFO] fetching crate picotcp-sys 0.2.1... [INFO] extracting crate picotcp-sys 0.2.1 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/picotcp-sys/0.2.1 [INFO] extracting crate picotcp-sys 0.2.1 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/picotcp-sys/0.2.1 [INFO] validating manifest of picotcp-sys-0.2.1 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 picotcp-sys-0.2.1 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 picotcp-sys-0.2.1 [INFO] finished frobbing picotcp-sys-0.2.1 [INFO] frobbed toml for picotcp-sys-0.2.1 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/picotcp-sys/0.2.1/Cargo.toml [INFO] started frobbing picotcp-sys-0.2.1 [INFO] finished frobbing picotcp-sys-0.2.1 [INFO] frobbed toml for picotcp-sys-0.2.1 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/picotcp-sys/0.2.1/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 picotcp-sys-0.2.1 against master#9f06855064ed06a50c496577b21ca50f92a2e67d for pr-61874 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-5/master#9f06855064ed06a50c496577b21ca50f92a2e67d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/picotcp-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" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 67f0f24c9eb7cb0d6a71ce0b1dd2187243eb95eae3ee3ddec12f2a4f6ceb703c [INFO] running `"docker" "start" "-a" "67f0f24c9eb7cb0d6a71ce0b1dd2187243eb95eae3ee3ddec12f2a4f6ceb703c"` [INFO] [stderr] Compiling clang-sys v0.11.1 [INFO] [stderr] Compiling syntex_pos v0.38.0 [INFO] [stderr] Compiling env_logger v0.3.5 [INFO] [stderr] Compiling docopt v0.6.86 [INFO] [stderr] Compiling syntex_errors v0.38.0 [INFO] [stderr] Compiling syntex_syntax v0.38.0 [INFO] [stderr] warning[E0502]: cannot borrow `cx.parse_sess.span_diagnostic` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/syntex_syntax-0.38.0/src/ext/expand.rs:1061:25 [INFO] [stderr] | [INFO] [stderr] 1051 | let mut expander = MacroExpander::new(&mut cx); [INFO] [stderr] | ------- mutable borrow occurs here [INFO] [stderr] ... [INFO] [stderr] 1061 | let err_count = cx.parse_sess.span_diagnostic.err_count(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ immutable borrow occurs here [INFO] [stderr] 1062 | let mut ret = expander.fold_crate(c); [INFO] [stderr] | -------- mutable borrow later used here [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] Compiling bindgen v0.19.1 [INFO] [stderr] Compiling picotcp-sys v0.2.1 (/opt/crater/workdir) [INFO] [stderr] error: failed to run custom build command for `picotcp-sys v0.2.1 (/opt/crater/workdir)` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/picotcp-sys-69e49bb88706b3a6/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'Failed to open file: Os { code: 30, kind: Other, message: "Read-only file system" }', src/libcore/result.rs:999:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55bf373597fb - backtrace::backtrace::libunwind::trace::hc6a4966d389b62be [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55bf373597fb - backtrace::backtrace::trace_unsynchronized::h234cd6c2c95fa587 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55bf373597fb - std::sys_common::backtrace::_print::h2896bece16680b31 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55bf373597fb - std::sys_common::backtrace::print::h5f4d4b954705d426 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55bf373597fb - std::panicking::default_hook::{{closure}}::h3d52949e2d73c1aa [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 5: 0x55bf373594fc - std::panicking::default_hook::h4b88c02cc00064f5 [INFO] [stderr] at src/libstd/panicking.rs:212 [INFO] [stderr] 6: 0x55bf37359f10 - std::panicking::rust_panic_with_hook::he5596ad1952b7279 [INFO] [stderr] at src/libstd/panicking.rs:475 [INFO] [stderr] 7: 0x55bf37359a92 - std::panicking::continue_panic_fmt::h13f3a9aeaf0459c4 [INFO] [stderr] at src/libstd/panicking.rs:382 [INFO] [stderr] 8: 0x55bf37359976 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:309 [INFO] [stderr] 9: 0x55bf3737547d - core::panicking::panic_fmt::h35cf1b39b1635ed5 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x55bf37181c08 - core::result::unwrap_failed::he44eff5df4f387d4 [INFO] [stderr] at /rustc/9f06855064ed06a50c496577b21ca50f92a2e67d/src/libcore/macros.rs:18 [INFO] [stderr] 11: 0x55bf36ca1e24 - core::result::Result::expect::h43f5f30eeff77a53 [INFO] [stderr] at /rustc/9f06855064ed06a50c496577b21ca50f92a2e67d/src/libcore/result.rs:827 [INFO] [stderr] 12: 0x55bf36c9d8c9 - build_script_build::main::ha189b1c5fa6cbe3d [INFO] [stderr] at /opt/crater/workdir/build.rs:74 [INFO] [stderr] 13: 0x55bf36c9fb40 - std::rt::lang_start::{{closure}}::h2697fad683285492 [INFO] [stderr] at /rustc/9f06855064ed06a50c496577b21ca50f92a2e67d/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x55bf37359913 - std::rt::lang_start_internal::{{closure}}::h97d240c87982728f [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x55bf37359913 - std::panicking::try::do_call::h657ecdd23710c935 [INFO] [stderr] at src/libstd/panicking.rs:294 [INFO] [stderr] 16: 0x55bf37360b6a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 17: 0x55bf3735a41d - std::panicking::try::h52772d620cb80373 [INFO] [stderr] at src/libstd/panicking.rs:273 [INFO] [stderr] 18: 0x55bf3735a41d - std::panic::catch_unwind::hac02eb84ea8f3a3e [INFO] [stderr] at src/libstd/panic.rs:388 [INFO] [stderr] 19: 0x55bf3735a41d - std::rt::lang_start_internal::h9fab34d7c96dfdc9 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x55bf36c9fb19 - std::rt::lang_start::h6d0c114fc97f6617 [INFO] [stderr] at /rustc/9f06855064ed06a50c496577b21ca50f92a2e67d/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x55bf36c9dcca - main [INFO] [stderr] 22: 0x7fdbba9532e1 - __libc_start_main [INFO] [stderr] 23: 0x55bf36c9772a - _start [INFO] [stderr] 24: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "67f0f24c9eb7cb0d6a71ce0b1dd2187243eb95eae3ee3ddec12f2a4f6ceb703c"` [INFO] running `"docker" "rm" "-f" "67f0f24c9eb7cb0d6a71ce0b1dd2187243eb95eae3ee3ddec12f2a4f6ceb703c"` [INFO] [stdout] 67f0f24c9eb7cb0d6a71ce0b1dd2187243eb95eae3ee3ddec12f2a4f6ceb703c