[INFO] updating cached repository ftabaro/mutation-viewer [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/ftabaro/mutation-viewer [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/ftabaro/mutation-viewer" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/ftabaro/mutation-viewer"` [INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/ftabaro/mutation-viewer'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/ftabaro/mutation-viewer" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/ftabaro/mutation-viewer"` [INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/ftabaro/mutation-viewer'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 9db01032796d52d9cc56e115b26a234fefce2b0e [INFO] sha for GitHub repo ftabaro/mutation-viewer: 9db01032796d52d9cc56e115b26a234fefce2b0e [INFO] validating manifest of ftabaro/mutation-viewer on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of ftabaro/mutation-viewer on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing ftabaro/mutation-viewer [INFO] finished frobbing ftabaro/mutation-viewer [INFO] frobbed toml for ftabaro/mutation-viewer written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/ftabaro/mutation-viewer/Cargo.toml [INFO] started frobbing ftabaro/mutation-viewer [INFO] finished frobbing ftabaro/mutation-viewer [INFO] frobbed toml for ftabaro/mutation-viewer written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/ftabaro/mutation-viewer/Cargo.toml [INFO] crate ftabaro/mutation-viewer already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking ftabaro/mutation-viewer against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-2/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/ftabaro/mutation-viewer:/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 433852cac0e72631fc4cb4828dc6e2a8657a96595714ee3609ec6f481e71eab6 [INFO] running `"docker" "start" "-a" "433852cac0e72631fc4cb4828dc6e2a8657a96595714ee3609ec6f481e71eab6"` [INFO] [stderr] Checking num-traits v0.2.0 [INFO] [stderr] Checking safemem v0.1.1 [INFO] [stderr] Checking ascii v0.7.1 [INFO] [stderr] Checking regex-syntax v0.4.2 [INFO] [stderr] Checking sha1 v0.2.0 [INFO] [stderr] Checking rand v0.4.2 [INFO] [stderr] Checking memchr v2.0.1 [INFO] [stderr] Checking memchr v0.1.11 [INFO] [stderr] Checking filetime v0.1.15 [INFO] [stderr] Compiling brotli-sys v0.2.1 [INFO] [stderr] Checking base64 v0.7.0 [INFO] [stderr] Checking threadpool v1.7.1 [INFO] [stderr] Checking buf_redux v0.6.1 [INFO] [stderr] Checking twoway v0.1.7 [INFO] [stderr] Checking aho-corasick v0.6.4 [INFO] [stderr] Checking miniz-sys v0.1.10 [INFO] [stderr] Checking remove_dir_all v0.3.0 [INFO] [stderr] Checking term v0.2.14 [INFO] [stderr] Checking flate2 v0.2.20 [INFO] [stderr] Checking flate2 v1.0.1 [INFO] [stderr] Compiling mime_guess v1.8.3 [INFO] [stderr] Checking num-integer v0.1.36 [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-3e8528168cf6390d/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:1084:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55a5a851b43b - backtrace::backtrace::libunwind::trace::h99e6362fdb92a8eb [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55a5a851b43b - backtrace::backtrace::trace_unsynchronized::hb03857eb223d1e1b [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55a5a851b43b - std::sys_common::backtrace::_print::hc504093b15dd6a49 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55a5a851b43b - std::sys_common::backtrace::print::h74592d8df46164e6 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55a5a851b43b - std::panicking::default_hook::{{closure}}::h148953d9747d04f4 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x55a5a851b116 - std::panicking::default_hook::h72a253311e200c7c [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x55a5a851bafd - std::panicking::rust_panic_with_hook::h625fcf59e672b6a0 [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x55a5a851b682 - std::panicking::continue_panic_fmt::hb865580971245aec [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x55a5a851b566 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x55a5a85303bd - core::panicking::panic_fmt::h88ab02319bb01bbf [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x55a5a85304b7 - core::result::unwrap_failed::hcd16c30e39593715 [INFO] [stderr] at src/libcore/result.rs:1084 [INFO] [stderr] 11: 0x55a5a84e1ba0 - core::result::Result::unwrap::h6342ff365e50d9de [INFO] [stderr] at /rustc/c43d03a19f326f4a323569328cc501e86eb6d22e/src/libcore/result.rs:852 [INFO] [stderr] 12: 0x55a5a84e3cb5 - build_script_gen_mime_types::main::he7579d28707777c1 [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: 0x55a5a84ce7d0 - std::rt::lang_start::{{closure}}::hcc97b18a3907afd2 [INFO] [stderr] at /rustc/c43d03a19f326f4a323569328cc501e86eb6d22e/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x55a5a851b553 - std::rt::lang_start_internal::{{closure}}::h5b4ccd53e4167b89 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x55a5a851b553 - std::panicking::try::do_call::h85f9b79f07affa28 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x55a5a851d64a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 17: 0x55a5a851c00d - std::panicking::try::h0463127fe79abe73 [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x55a5a851c00d - std::panic::catch_unwind::h846bfd7d9d99e56b [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 19: 0x55a5a851c00d - std::rt::lang_start_internal::h0a72d627fb2e90ec [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x55a5a84ce7a9 - std::rt::lang_start::h6fb8be64e0d39a6c [INFO] [stderr] at /rustc/c43d03a19f326f4a323569328cc501e86eb6d22e/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x55a5a84e523a - main [INFO] [stderr] 22: 0x7fb4e13972e1 - __libc_start_main [INFO] [stderr] 23: 0x55a5a84ba1ca - _start [INFO] [stderr] 24: 0x0 - [INFO] [stderr] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "433852cac0e72631fc4cb4828dc6e2a8657a96595714ee3609ec6f481e71eab6"` [INFO] running `"docker" "rm" "-f" "433852cac0e72631fc4cb4828dc6e2a8657a96595714ee3609ec6f481e71eab6"` [INFO] [stdout] 433852cac0e72631fc4cb4828dc6e2a8657a96595714ee3609ec6f481e71eab6