[INFO] updating cached repository easybill/serverdensity-udp-agent [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/easybill/serverdensity-udp-agent [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/easybill/serverdensity-udp-agent" "work/ex/beta-1.38-1/sources/1.37.0/gh/easybill/serverdensity-udp-agent"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/easybill/serverdensity-udp-agent'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/easybill/serverdensity-udp-agent" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/easybill/serverdensity-udp-agent"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/easybill/serverdensity-udp-agent'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] ede38b9ca5882ae9f43962e062f09694ae2a6d38 [INFO] sha for GitHub repo easybill/serverdensity-udp-agent: ede38b9ca5882ae9f43962e062f09694ae2a6d38 [INFO] validating manifest of easybill/serverdensity-udp-agent on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of easybill/serverdensity-udp-agent on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing easybill/serverdensity-udp-agent [INFO] finished frobbing easybill/serverdensity-udp-agent [INFO] frobbed toml for easybill/serverdensity-udp-agent written to work/ex/beta-1.38-1/sources/1.37.0/gh/easybill/serverdensity-udp-agent/Cargo.toml [INFO] started frobbing easybill/serverdensity-udp-agent [INFO] finished frobbing easybill/serverdensity-udp-agent [INFO] frobbed toml for easybill/serverdensity-udp-agent written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/easybill/serverdensity-udp-agent/Cargo.toml [INFO] crate easybill/serverdensity-udp-agent already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing easybill/serverdensity-udp-agent against beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/easybill/serverdensity-udp-agent:/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-2019-08-13" "build" "--frozen"` [INFO] [stdout] e61a43a2219e56cfffd31d0a2acff779362ede1debc1af9d7ef6decd8f6eeb94 [INFO] running `"docker" "start" "-a" "e61a43a2219e56cfffd31d0a2acff779362ede1debc1af9d7ef6decd8f6eeb94"` [INFO] [stderr] Compiling libc v0.2.32 [INFO] [stderr] Compiling cc v1.0.1 [INFO] [stderr] Compiling lazycell v0.5.1 [INFO] [stderr] Compiling futures v0.1.16 [INFO] [stderr] Compiling openssl v0.9.20 [INFO] [stderr] Compiling scoped-tls v0.1.0 [INFO] [stderr] Compiling foreign-types v0.2.0 [INFO] [stderr] Compiling lazy_static v0.2.9 [INFO] [stderr] Compiling crc-core v0.1.0 [INFO] [stderr] Compiling percent-encoding v1.0.0 [INFO] [stderr] Compiling httparse v1.2.3 [INFO] [stderr] Compiling serde v1.0.15 [INFO] [stderr] Compiling openssl-probe v0.1.1 [INFO] [stderr] Compiling md5 v0.3.5 [INFO] [stderr] Compiling base64 v0.6.0 [INFO] [stderr] Compiling crc v1.5.0 [INFO] [stderr] Compiling unicase v2.0.0 [INFO] [stderr] Compiling thread_local v0.3.4 [INFO] [stderr] Compiling url v1.5.1 [INFO] [stderr] Compiling iovec v0.1.1 [INFO] [stderr] Compiling rand v0.3.17 [INFO] [stderr] Compiling net2 v0.2.31 [INFO] [stderr] Compiling num_cpus v1.7.0 [INFO] [stderr] Compiling time v0.1.38 [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-1.5.1/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] Compiling term_size v0.3.0 [INFO] [stderr] Compiling memchr v1.0.1 [INFO] [stderr] Compiling atty v0.2.3 [INFO] [stderr] Compiling bytes v0.4.5 [INFO] [stderr] Compiling mio v0.6.10 [INFO] [stderr] Compiling textwrap v0.8.0 [INFO] [stderr] Compiling aho-corasick v0.6.3 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Compiling uuid v0.5.1 [INFO] [stderr] Compiling openssl-sys v0.9.20 [INFO] [stderr] Compiling clap v2.26.2 [INFO] [stderr] Compiling tokio-io v0.1.3 [INFO] [stderr] Compiling tokio-service v0.1.0 [INFO] [stderr] Compiling futures-cpupool v0.1.7 [INFO] [stderr] Compiling relay v0.1.0 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Compiling regex v0.2.2 [INFO] [stderr] Compiling libflate v0.1.12 [INFO] [stderr] Compiling mime v0.3.5 [INFO] [stderr] Compiling mime_guess v2.0.0-alpha.2 [INFO] [stderr] Compiling tokio-core v0.1.10 [INFO] [stderr] Compiling tokio-proto v0.1.1 [INFO] [stderr] error: failed to run custom build command for `mime_guess v2.0.0-alpha.2` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/mime_guess-210f719c4facc82e/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: 0x55668884093b - backtrace::backtrace::libunwind::trace::h23ae608c8b906c69 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55668884093b - backtrace::backtrace::trace_unsynchronized::h65b3ea295a85fd48 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55668884093b - std::sys_common::backtrace::_print::h24f527b44b6cfc06 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55668884093b - std::sys_common::backtrace::print::h712608e4347fd64a [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55668884093b - std::panicking::default_hook::{{closure}}::h6c3d570c2b500048 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x556688840616 - std::panicking::default_hook::hb29963fb4747e0dd [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x556688840ffd - std::panicking::rust_panic_with_hook::hd1236c3083de823a [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x556688840b82 - std::panicking::continue_panic_fmt::he38ad41d6304a12c [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x556688840a66 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x5566888558bd - core::panicking::panic_fmt::h1bc6de43c92ad80c [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x5566888559b7 - core::result::unwrap_failed::hd83f272814becce6 [INFO] [stderr] at src/libcore/result.rs:1084 [INFO] [stderr] 11: 0x556688806ca0 - core::result::Result::unwrap::he6e0ec8f0861bc66 [INFO] [stderr] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libcore/result.rs:852 [INFO] [stderr] 12: 0x556688808c75 - build_script_gen_mime_types::main::hd1726e25178f2d88 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-2.0.0-alpha.2/src/gen_mime_types.rs:22 [INFO] [stderr] 13: 0x5566887f39a0 - std::rt::lang_start::{{closure}}::hc2300698f955dab8 [INFO] [stderr] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x556688840a53 - std::rt::lang_start_internal::{{closure}}::hf367a5a6ae52b0ce [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x556688840a53 - std::panicking::try::do_call::h9d779bc5e27e3284 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x556688842b4a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 17: 0x55668884150d - std::panicking::try::h4af22d9cb0afa351 [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x55668884150d - std::panic::catch_unwind::hbb68a9ada87bfb97 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 19: 0x55668884150d - std::rt::lang_start_internal::hba9e09d74440ce4d [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x5566887f3979 - std::rt::lang_start::h41e9cd341d48c56a [INFO] [stderr] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x55668880a1fa - main [INFO] [stderr] 22: 0x7f4c2ae702e1 - __libc_start_main [INFO] [stderr] 23: 0x5566887df3aa - _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" "e61a43a2219e56cfffd31d0a2acff779362ede1debc1af9d7ef6decd8f6eeb94"` [INFO] running `"docker" "rm" "-f" "e61a43a2219e56cfffd31d0a2acff779362ede1debc1af9d7ef6decd8f6eeb94"` [INFO] [stdout] e61a43a2219e56cfffd31d0a2acff779362ede1debc1af9d7ef6decd8f6eeb94