[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-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/ftabaro/mutation-viewer"` [INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/ftabaro/mutation-viewer'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/ftabaro/mutation-viewer" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/ftabaro/mutation-viewer"` [INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/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#452087b4bf18cece2d52d7cd8c9147195e5404bf [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of ftabaro/mutation-viewer on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-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-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/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-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] checking ftabaro/mutation-viewer against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-7/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] c89071e5258543da5463bdda105a29ccf2dcdb73dc35fc0776db9a1141755c23 [INFO] running `"docker" "start" "-a" "c89071e5258543da5463bdda105a29ccf2dcdb73dc35fc0776db9a1141755c23"` [INFO] [stderr] Compiling brotli-sys v0.2.1 [INFO] [stderr] Checking filetime v0.1.15 [INFO] [stderr] Checking base64 v0.7.0 [INFO] [stderr] Checking buf_redux v0.6.1 [INFO] [stderr] Checking twoway v0.1.7 [INFO] [stderr] Checking num v0.1.41 [INFO] [stderr] Checking uuid v0.1.18 [INFO] [stderr] Checking miniz-sys v0.1.10 [INFO] [stderr] Checking flate2 v0.2.20 [INFO] [stderr] Checking flate2 v1.0.1 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Checking chrono v0.2.25 [INFO] [stderr] Checking chrono v0.4.0 [INFO] [stderr] Checking docopt v0.8.3 [INFO] [stderr] Checking url v0.2.38 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Compiling mime_guess v1.8.3 [INFO] [stderr] Checking tiny_http v0.5.9 [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-d60bc58f954ecafe/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: 0x56164799673b - backtrace::backtrace::libunwind::trace::h098b67cd5ecf24d4 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x56164799673b - backtrace::backtrace::trace_unsynchronized::h41f8ecb0b6b75123 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x56164799673b - std::sys_common::backtrace::_print::h6bdd5779472ab8c6 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x56164799673b - std::sys_common::backtrace::print::h535418cbcfd3b064 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x56164799673b - std::panicking::default_hook::{{closure}}::h8962ad5cd6daeea4 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x561647996416 - std::panicking::default_hook::h39b428958abf2606 [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x561647996dfd - std::panicking::rust_panic_with_hook::hec5b145cd2b2dbe3 [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x561647996982 - std::panicking::continue_panic_fmt::h499883e21d98c9ea [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x561647996866 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x5616479ab59d - core::panicking::panic_fmt::hf925eb7f761dd347 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x5616479ab697 - core::result::unwrap_failed::hb295cb62d0c5f00c [INFO] [stderr] at src/libcore/result.rs:1084 [INFO] [stderr] 11: 0x56164795c880 - core::result::Result::unwrap::h1612fe67baf518ec [INFO] [stderr] at /rustc/757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/src/libcore/result.rs:852 [INFO] [stderr] 12: 0x56164795e995 - build_script_gen_mime_types::main::h29281aa191ad5dad [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: 0x561647949800 - std::rt::lang_start::{{closure}}::haf73d77412bf50de [INFO] [stderr] at /rustc/757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x561647996853 - std::rt::lang_start_internal::{{closure}}::h1d5b2f63d8aab9e2 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x561647996853 - std::panicking::try::do_call::h23b1282500223f6a [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x56164799894a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 17: 0x56164799730d - std::panicking::try::hf851d9cd2a46569f [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x56164799730d - std::panic::catch_unwind::h38ad47fd47b8a319 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 19: 0x56164799730d - std::rt::lang_start_internal::h8489a7c3e11328c4 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x5616479497d9 - std::rt::lang_start::he17a8788b31be17b [INFO] [stderr] at /rustc/757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x56164795ff1a - main [INFO] [stderr] 22: 0x7fa990ba92e1 - __libc_start_main [INFO] [stderr] 23: 0x5616479351fa - _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" "c89071e5258543da5463bdda105a29ccf2dcdb73dc35fc0776db9a1141755c23"` [INFO] running `"docker" "rm" "-f" "c89071e5258543da5463bdda105a29ccf2dcdb73dc35fc0776db9a1141755c23"` [INFO] [stdout] c89071e5258543da5463bdda105a29ccf2dcdb73dc35fc0776db9a1141755c23