[INFO] updating cached repository HustonMmmavr/rust_db [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/HustonMmmavr/rust_db [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/HustonMmmavr/rust_db" "work/ex/beta-1.37-6/sources/1.36.0/gh/HustonMmmavr/rust_db"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/HustonMmmavr/rust_db'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/HustonMmmavr/rust_db" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/HustonMmmavr/rust_db"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/HustonMmmavr/rust_db'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 6d0693030dc61343240f8ae49e334db5bee95966 [INFO] sha for GitHub repo HustonMmmavr/rust_db: 6d0693030dc61343240f8ae49e334db5bee95966 [INFO] validating manifest of HustonMmmavr/rust_db 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 HustonMmmavr/rust_db 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 HustonMmmavr/rust_db [INFO] finished frobbing HustonMmmavr/rust_db [INFO] frobbed toml for HustonMmmavr/rust_db written to work/ex/beta-1.37-6/sources/1.36.0/gh/HustonMmmavr/rust_db/Cargo.toml [INFO] started frobbing HustonMmmavr/rust_db [INFO] finished frobbing HustonMmmavr/rust_db [INFO] frobbed toml for HustonMmmavr/rust_db written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/HustonMmmavr/rust_db/Cargo.toml [INFO] crate HustonMmmavr/rust_db 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] [stderr] Blocking waiting for file lock on package cache lock [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] testing HustonMmmavr/rust_db against 1.36.0 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/HustonMmmavr/rust_db:/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" "+1.36.0" "build" "--frozen"` [INFO] [stdout] 8583a4f1b1b24fa601d4c5bc0a9cfec9e2fd57488bc45df1c9e3520a2b9f112f [INFO] running `"docker" "start" "-a" "8583a4f1b1b24fa601d4c5bc0a9cfec9e2fd57488bc45df1c9e3520a2b9f112f"` [INFO] [stderr] Compiling libc v0.2.36 [INFO] [stderr] Compiling typenum v1.9.0 [INFO] [stderr] Compiling num-traits v0.1.41 [INFO] [stderr] Compiling byteorder v1.2.1 [INFO] [stderr] Compiling byte-tools v0.2.0 [INFO] [stderr] Compiling fake-simd v0.1.2 [INFO] [stderr] Compiling fallible-iterator v0.1.4 [INFO] [stderr] Compiling md5 v0.3.6 [INFO] [stderr] Compiling serde v1.0.27 [INFO] [stderr] Compiling itoa v0.3.4 [INFO] [stderr] Compiling safemem v0.1.1 [INFO] [stderr] Compiling hex v0.2.0 [INFO] [stderr] Compiling scheduled-thread-pool v0.2.0 [INFO] [stderr] Compiling stringprep v0.1.2 [INFO] [stderr] Compiling mime v0.2.6 [INFO] [stderr] Compiling url v1.6.0 [INFO] [stderr] Compiling base64 v0.6.0 [INFO] [stderr] Compiling serde_derive_internals v0.19.0 [INFO] [stderr] Compiling phf_shared v0.7.21 [INFO] [stderr] Compiling rand v0.3.20 [INFO] [stderr] Compiling num_cpus v1.8.0 [INFO] [stderr] Compiling time v0.1.39 [INFO] [stderr] Compiling iovec v0.1.1 [INFO] [stderr] Compiling memchr v1.0.2 [INFO] [stderr] Compiling memchr v0.1.11 [INFO] [stderr] Compiling memchr v2.0.1 [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-1.6.0/src/form_urlencoded.rs:261:40 [INFO] [stderr] | [INFO] [stderr] 259 | impl<'a> Target for ::UrlQuery<'a> { [INFO] [stderr] | -- lifetime `'a` defined here [INFO] [stderr] 260 | fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization } [INFO] [stderr] 261 | 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] [INFO] [stderr] Compiling num-integer v0.1.35 [INFO] [stderr] Compiling num-complex v0.1.41 [INFO] [stderr] Compiling thread-id v2.0.0 [INFO] [stderr] Compiling r2d2 v0.8.2 [INFO] [stderr] Compiling phf v0.7.21 [INFO] [stderr] Compiling bytes v0.4.6 [INFO] [stderr] Compiling buf_redux v0.6.1 [INFO] [stderr] Compiling aho-corasick v0.5.3 [INFO] [stderr] Compiling twoway v0.1.7 [INFO] [stderr] Compiling num-iter v0.1.34 [INFO] [stderr] Compiling thread_local v0.2.7 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Compiling num-bigint v0.1.41 [INFO] [stderr] Compiling tempdir v0.3.5 [INFO] [stderr] Compiling hyper v0.10.13 [INFO] [stderr] Compiling regex v0.1.80 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Compiling serde_derive v1.0.27 [INFO] [stderr] Compiling mime_guess v1.8.3 [INFO] [stderr] Compiling generic-array v0.8.3 [INFO] [stderr] Compiling block-buffer v0.2.0 [INFO] [stderr] Compiling digest v0.6.2 [INFO] [stderr] Compiling crypto-mac v0.4.0 [INFO] [stderr] Compiling sha2 v0.6.0 [INFO] [stderr] Compiling hmac v0.4.2 [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-8ae1489b7da152f9/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: 0x55f66be19e03 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h6485381528590a55 [INFO] [stderr] at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39 [INFO] [stderr] 1: 0x55f66be15a1b - std::sys_common::backtrace::_print::h49a82ae9552e35c7 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:71 [INFO] [stderr] 2: 0x55f66be18c76 - std::panicking::default_hook::{{closure}}::he20974adbefcc046 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] at src/libstd/panicking.rs:197 [INFO] [stderr] 3: 0x55f66be18a09 - std::panicking::default_hook::he4af6af4ac7fef7b [INFO] [stderr] at src/libstd/panicking.rs:211 [INFO] [stderr] 4: 0x55f66be192cf - std::panicking::rust_panic_with_hook::h057ff03eb4c8000f [INFO] [stderr] at src/libstd/panicking.rs:474 [INFO] [stderr] 5: 0x55f66be18e51 - std::panicking::continue_panic_fmt::ha6d6ae144369025b [INFO] [stderr] at src/libstd/panicking.rs:381 [INFO] [stderr] 6: 0x55f66be18d35 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:308 [INFO] [stderr] 7: 0x55f66be29bac - core::panicking::panic_fmt::hc4f83bfed80aeabd [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 8: 0x55f66be0aac7 - core::result::unwrap_failed::h398f82294a1ff38c [INFO] [stderr] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/macros.rs:18 [INFO] [stderr] 9: 0x55f66bdd72ea - core::result::Result::unwrap::hbf1c039557a3d6b1 [INFO] [stderr] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/result.rs:800 [INFO] [stderr] 10: 0x55f66bde23a4 - build_script_gen_mime_types::main::h226c1a9da82dd67a [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] 11: 0x55f66be012ef - std::rt::lang_start::{{closure}}::hae861fc5aa6e0c9e [INFO] [stderr] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64 [INFO] [stderr] 12: 0x55f66be18d22 - std::panicking::try::do_call::hc3d8373a0b215f51 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] at src/libstd/panicking.rs:293 [INFO] [stderr] 13: 0x55f66be1b259 - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:85 [INFO] [stderr] 14: 0x55f66be197dc - std::rt::lang_start_internal::he5218c8b95d395f2 [INFO] [stderr] at src/libstd/panicking.rs:272 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 15: 0x55f66be012c8 - std::rt::lang_start::hd7bcaac38dfa7cc3 [INFO] [stderr] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64 [INFO] [stderr] 16: 0x55f66bde39e9 - main [INFO] [stderr] 17: 0x7f79c608c2e0 - __libc_start_main [INFO] [stderr] 18: 0x55f66bdb75b9 - _start [INFO] [stderr] 19: 0x0 - [INFO] [stderr] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "8583a4f1b1b24fa601d4c5bc0a9cfec9e2fd57488bc45df1c9e3520a2b9f112f"` [INFO] running `"docker" "rm" "-f" "8583a4f1b1b24fa601d4c5bc0a9cfec9e2fd57488bc45df1c9e3520a2b9f112f"` [INFO] [stdout] 8583a4f1b1b24fa601d4c5bc0a9cfec9e2fd57488bc45df1c9e3520a2b9f112f