[INFO] updating cached repository gavinzhou/hello-rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/gavinzhou/hello-rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/gavinzhou/hello-rust" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/gavinzhou/hello-rust"` [INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/gavinzhou/hello-rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/gavinzhou/hello-rust" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/gavinzhou/hello-rust"` [INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/gavinzhou/hello-rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 74405adad711da3e59d5451cbdf6058603513463 [INFO] sha for GitHub repo gavinzhou/hello-rust: 74405adad711da3e59d5451cbdf6058603513463 [INFO] validating manifest of gavinzhou/hello-rust on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of gavinzhou/hello-rust on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing gavinzhou/hello-rust [INFO] finished frobbing gavinzhou/hello-rust [INFO] frobbed toml for gavinzhou/hello-rust written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/gavinzhou/hello-rust/Cargo.toml [INFO] started frobbing gavinzhou/hello-rust [INFO] finished frobbing gavinzhou/hello-rust [INFO] frobbed toml for gavinzhou/hello-rust written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/gavinzhou/hello-rust/Cargo.toml [INFO] crate gavinzhou/hello-rust already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking gavinzhou/hello-rust against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-1/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/gavinzhou/hello-rust:/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] f259f95790a57818c8668c880ee0b6471021ca112cf9e004dab351de4a71dcb8 [INFO] running `"docker" "start" "-a" "f259f95790a57818c8668c880ee0b6471021ca112cf9e004dab351de4a71dcb8"` [INFO] [stderr] Compiling mime_guess v1.8.3 [INFO] [stderr] error: failed to run custom build command for `mime_guess v1.8.3` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/mime_guess-46c415214268e549/build-script-gen_mime_types` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/libcore/result.rs:999:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x56291adc227b - backtrace::backtrace::libunwind::trace::h0c70a293f076b04d [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x56291adc227b - backtrace::backtrace::trace_unsynchronized::h1bc693e29cfaa7b4 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x56291adc227b - std::sys_common::backtrace::_print::h8e9bb00be68d4090 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x56291adc227b - std::sys_common::backtrace::print::h706192507dd9d34d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x56291adc227b - std::panicking::default_hook::{{closure}}::he2b558091ea21dea [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 5: 0x56291adc1f57 - std::panicking::default_hook::hfb9d48d2b8aaf0f5 [INFO] [stderr] at src/libstd/panicking.rs:212 [INFO] [stderr] 6: 0x56291adc2940 - std::panicking::rust_panic_with_hook::h56bb6d26ac5aac90 [INFO] [stderr] at src/libstd/panicking.rs:475 [INFO] [stderr] 7: 0x56291adc24c2 - std::panicking::continue_panic_fmt::h360cf8419afe0564 [INFO] [stderr] at src/libstd/panicking.rs:382 [INFO] [stderr] 8: 0x56291adc23a6 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:309 [INFO] [stderr] 9: 0x56291add70ad - core::panicking::panic_fmt::h9cf93b79d5aa98c5 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x56291adb4f08 - core::result::unwrap_failed::hfad6a8197546750f [INFO] [stderr] at /rustc/5f9c0448dde167128d668da4555879f64e56af1d/src/libcore/macros.rs:18 [INFO] [stderr] 11: 0x56291ad83d4c - core::result::Result::unwrap::hce3d8bafff606475 [INFO] [stderr] at /rustc/5f9c0448dde167128d668da4555879f64e56af1d/src/libcore/result.rs:800 [INFO] [stderr] 12: 0x56291ad8cb25 - build_script_gen_mime_types::main::ha051b0f60a916501 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-1.8.3/src/gen_mime_types.rs:22 [INFO] [stderr] 13: 0x56291adab520 - std::rt::lang_start::{{closure}}::hffc51f1d9913987e [INFO] [stderr] at /rustc/5f9c0448dde167128d668da4555879f64e56af1d/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x56291adc2393 - std::rt::lang_start_internal::{{closure}}::h868ef2b3c3a15fff [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x56291adc2393 - std::panicking::try::do_call::h4528fe5c5ea34ef8 [INFO] [stderr] at src/libstd/panicking.rs:294 [INFO] [stderr] 16: 0x56291adc42da - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 17: 0x56291adc2e4d - std::panicking::try::ha87d5378c5dcb863 [INFO] [stderr] at src/libstd/panicking.rs:273 [INFO] [stderr] 18: 0x56291adc2e4d - std::panic::catch_unwind::hf01b748a30fdd5ec [INFO] [stderr] at src/libstd/panic.rs:388 [INFO] [stderr] 19: 0x56291adc2e4d - std::rt::lang_start_internal::h9518341cf2ad1d33 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x56291adab4f9 - std::rt::lang_start::he00467759441ac5b [INFO] [stderr] at /rustc/5f9c0448dde167128d668da4555879f64e56af1d/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x56291ad8e15a - main [INFO] [stderr] 22: 0x7f14f7bb92e1 - __libc_start_main [INFO] [stderr] 23: 0x56291ad611aa - _start [INFO] [stderr] 24: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "f259f95790a57818c8668c880ee0b6471021ca112cf9e004dab351de4a71dcb8"` [INFO] running `"docker" "rm" "-f" "f259f95790a57818c8668c880ee0b6471021ca112cf9e004dab351de4a71dcb8"` [INFO] [stdout] f259f95790a57818c8668c880ee0b6471021ca112cf9e004dab351de4a71dcb8