[INFO] updating cached repository Flat/megumin [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/Flat/megumin [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/Flat/megumin" "work/ex/beta-1.37-6/sources/1.36.0/gh/Flat/megumin"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Flat/megumin'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/Flat/megumin" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Flat/megumin"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Flat/megumin'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 3c0145d8ee6ffa133491b50f4a5665e528ddac05 [INFO] sha for GitHub repo Flat/megumin: 3c0145d8ee6ffa133491b50f4a5665e528ddac05 [INFO] validating manifest of Flat/megumin on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of Flat/megumin on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing Flat/megumin [INFO] finished frobbing Flat/megumin [INFO] frobbed toml for Flat/megumin written to work/ex/beta-1.37-6/sources/1.36.0/gh/Flat/megumin/Cargo.toml [INFO] started frobbing Flat/megumin [INFO] finished frobbing Flat/megumin [INFO] frobbed toml for Flat/megumin written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Flat/megumin/Cargo.toml [INFO] crate Flat/megumin already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing Flat/megumin against beta-2019-07-23 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Flat/megumin:/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"` [INFO] [stdout] 844c9909b9ccb51e72d00b4efd170c33dd483ac3fd9139af13aaf369d9982ccf [INFO] running `"docker" "start" "-a" "844c9909b9ccb51e72d00b4efd170c33dd483ac3fd9139af13aaf369d9982ccf"` [INFO] [stderr] Compiling version_check v0.1.2 [INFO] [stderr] Compiling openssl v0.9.13 [INFO] [stderr] Compiling unicode-normalization v0.1.4 [INFO] [stderr] Compiling bitflags v0.8.2 [INFO] [stderr] Compiling serde v1.0.8 [INFO] [stderr] Compiling xdg v2.1.0 [INFO] [stderr] Compiling openssl-sys v0.9.13 [INFO] [stderr] Compiling unicode-bidi v0.3.3 [INFO] [stderr] Compiling miniz-sys v0.1.9 [INFO] [stderr] Compiling num_cpus v1.5.1 [INFO] [stderr] Compiling memchr v1.0.1 [INFO] [stderr] Compiling thread-id v3.1.0 [INFO] [stderr] Compiling base64 v0.5.2 [INFO] [stderr] Compiling tempdir v0.3.5 [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Compiling aho-corasick v0.6.3 [INFO] [stderr] Compiling thread_local v0.3.3 [INFO] [stderr] Compiling serde_codegen_internals v0.14.2 [INFO] [stderr] Compiling app_dirs v1.1.1 [INFO] [stderr] Compiling serde_derive v1.0.8 [INFO] [stderr] Compiling flate2 v0.2.19 [INFO] [stderr] Compiling idna v0.1.2 [INFO] [stderr] Compiling regex v0.2.2 [INFO] [stderr] Compiling phf_shared v0.7.21 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Compiling phf v0.7.21 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Compiling mime_guess v1.8.1 [INFO] [stderr] Compiling serde_derive v0.9.15 [INFO] [stderr] Compiling url v1.5.0 [INFO] [stderr] error: failed to run custom build command for `mime_guess v1.8.1` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/mime_guess-cd2152f6ac1edf1a/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: 0x55e39bfb4f4b - backtrace::backtrace::libunwind::trace::h5dfa5d4c5feed6dc [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55e39bfb4f4b - backtrace::backtrace::trace_unsynchronized::hb731fe64f3fa469f [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55e39bfb4f4b - std::sys_common::backtrace::_print::hf4fd45fe7ae4a250 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55e39bfb4f4b - std::sys_common::backtrace::print::h31646c3786c57441 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55e39bfb4f4b - std::panicking::default_hook::{{closure}}::hda785e768c746ae7 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x55e39bfb4c27 - std::panicking::default_hook::h0c4b76f338614ef1 [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x55e39bfb5610 - std::panicking::rust_panic_with_hook::h096dff2cb12b67ce [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x55e39bfb5192 - std::panicking::continue_panic_fmt::h0046167652be99a6 [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x55e39bfb5076 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x55e39bfc9c2d - core::panicking::panic_fmt::h8980489a6c4a44cb [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x55e39bfa80f8 - core::result::unwrap_failed::hd36fa9c78a8bd50f [INFO] [stderr] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/macros.rs:18 [INFO] [stderr] 11: 0x55e39bf7500c - core::result::Result::unwrap::h8e04915ff08ec38a [INFO] [stderr] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/result.rs:800 [INFO] [stderr] 12: 0x55e39bf78265 - build_script_gen_mime_types::main::hb545e8d4c523108c [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-1.8.1/src/gen_mime_types.rs:22 [INFO] [stderr] 13: 0x55e39bf9ea40 - std::rt::lang_start::{{closure}}::h1bd8d926cecb2b1f [INFO] [stderr] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x55e39bfb5063 - std::rt::lang_start_internal::{{closure}}::h055e1fdc5578d418 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x55e39bfb5063 - std::panicking::try::do_call::h480cafa68c9928b4 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x55e39bfb6e0a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 17: 0x55e39bfb5b1d - std::panicking::try::he0549d0299de204a [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x55e39bfb5b1d - std::panic::catch_unwind::h422dc2db98f03517 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 19: 0x55e39bfb5b1d - std::rt::lang_start_internal::h121de03325a3f900 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x55e39bf9ea19 - std::rt::lang_start::h301c3df23c03dd70 [INFO] [stderr] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x55e39bf7989a - main [INFO] [stderr] 22: 0x7f380f30b2e1 - __libc_start_main [INFO] [stderr] 23: 0x55e39bf53c9a - _start [INFO] [stderr] 24: 0x0 - [INFO] [stderr] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.5.0/src/form_urlencoded.rs:251:40 [INFO] [stderr] | [INFO] [stderr] 249 | impl<'a> Target for ::UrlQuery<'a> { [INFO] [stderr] | -- lifetime `'a` defined here [INFO] [stderr] 250 | fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization } [INFO] [stderr] 251 | fn finish(self) -> &'a mut ::Url { self.url } [INFO] [stderr] | ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait [INFO] [stderr] | | [INFO] [stderr] | returning this value requires that `*self.url` is borrowed for `'a` [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] error: build failed [INFO] running `"docker" "inspect" "844c9909b9ccb51e72d00b4efd170c33dd483ac3fd9139af13aaf369d9982ccf"` [INFO] running `"docker" "rm" "-f" "844c9909b9ccb51e72d00b4efd170c33dd483ac3fd9139af13aaf369d9982ccf"` [INFO] [stdout] 844c9909b9ccb51e72d00b4efd170c33dd483ac3fd9139af13aaf369d9982ccf