[INFO] updating cached repository SnapLock/facelock-backend [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/SnapLock/facelock-backend [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/SnapLock/facelock-backend" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/SnapLock/facelock-backend"` [INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/SnapLock/facelock-backend'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/SnapLock/facelock-backend" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/SnapLock/facelock-backend"` [INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/SnapLock/facelock-backend'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 69fd48ba8ee086a7b83be0d1444c3faf76ac4dba [INFO] sha for GitHub repo SnapLock/facelock-backend: 69fd48ba8ee086a7b83be0d1444c3faf76ac4dba [INFO] validating manifest of SnapLock/facelock-backend on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of SnapLock/facelock-backend on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing SnapLock/facelock-backend [INFO] finished frobbing SnapLock/facelock-backend [INFO] frobbed toml for SnapLock/facelock-backend written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/SnapLock/facelock-backend/Cargo.toml [INFO] started frobbing SnapLock/facelock-backend [INFO] finished frobbing SnapLock/facelock-backend [INFO] frobbed toml for SnapLock/facelock-backend written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/SnapLock/facelock-backend/Cargo.toml [INFO] crate SnapLock/facelock-backend already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking SnapLock/facelock-backend against try#8ec8125bea94852768b56958f05da47666c21ab0 for pr-62133 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-4/try#8ec8125bea94852768b56958f05da47666c21ab0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/SnapLock/facelock-backend:/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" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 4903a918efa7425bb696f85d55e276dd517cbcf3def7c280e80defdda3420ffd [INFO] running `"docker" "start" "-a" "4903a918efa7425bb696f85d55e276dd517cbcf3def7c280e80defdda3420ffd"` [INFO] [stderr] Compiling unicode-bidi v0.3.3 [INFO] [stderr] Compiling time v0.1.37 [INFO] [stderr] Compiling num_cpus v1.6.2 [INFO] [stderr] Checking memchr v0.1.11 [INFO] [stderr] Compiling memchr v1.0.1 [INFO] [stderr] Compiling rocket v0.2.8 [INFO] [stderr] Compiling rocket_codegen v0.2.8 [INFO] [stderr] Checking uuid v0.1.18 [INFO] [stderr] Checking url v1.5.1 [INFO] [stderr] Checking buf_redux v0.6.1 [INFO] [stderr] Checking twoway v0.1.3 [INFO] [stderr] Checking url v0.2.38 [INFO] [stderr] Checking chrono v0.2.25 [INFO] [stderr] Compiling mime_guess v1.8.1 [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-6a551d5ce988bafb/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: 0x55eed777fe2b - backtrace::backtrace::libunwind::trace::h65f453dfe0027df1 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55eed777fe2b - backtrace::backtrace::trace_unsynchronized::hcf757005c6accfed [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55eed777fe2b - std::sys_common::backtrace::_print::h3230a9d2592a2eba [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55eed777fe2b - std::sys_common::backtrace::print::h19f579688627ee7e [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55eed777fe2b - std::panicking::default_hook::{{closure}}::h472b43365b331815 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 5: 0x55eed777fb07 - std::panicking::default_hook::h0857821e5ff5a369 [INFO] [stderr] at src/libstd/panicking.rs:212 [INFO] [stderr] 6: 0x55eed77804f0 - std::panicking::rust_panic_with_hook::ha9d31dc2aa8d852d [INFO] [stderr] at src/libstd/panicking.rs:475 [INFO] [stderr] 7: 0x55eed7780072 - std::panicking::continue_panic_fmt::hf0afac1d5f249c91 [INFO] [stderr] at src/libstd/panicking.rs:382 [INFO] [stderr] 8: 0x55eed777ff56 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:309 [INFO] [stderr] 9: 0x55eed7794c5d - core::panicking::panic_fmt::h0c0cb0551736f849 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x55eed7772e88 - core::result::unwrap_failed::h84ee6c634a1c862a [INFO] [stderr] at /rustc/8ec8125bea94852768b56958f05da47666c21ab0/src/libcore/macros.rs:18 [INFO] [stderr] 11: 0x55eed774179c - core::result::Result::unwrap::h40a3cf261d34f43f [INFO] [stderr] at /rustc/8ec8125bea94852768b56958f05da47666c21ab0/src/libcore/result.rs:800 [INFO] [stderr] 12: 0x55eed774a6b5 - build_script_gen_mime_types::main::h7f40ddcda9b0a85e [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: 0x55eed77690b0 - std::rt::lang_start::{{closure}}::h112355bf32d73eee [INFO] [stderr] at /rustc/8ec8125bea94852768b56958f05da47666c21ab0/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x55eed777ff43 - std::rt::lang_start_internal::{{closure}}::h358a76ea39d8997f [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x55eed777ff43 - std::panicking::try::do_call::h1fdcc0a978075552 [INFO] [stderr] at src/libstd/panicking.rs:294 [INFO] [stderr] 16: 0x55eed7781e8a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 17: 0x55eed77809fd - std::panicking::try::hd48ddd0547e22f90 [INFO] [stderr] at src/libstd/panicking.rs:273 [INFO] [stderr] 18: 0x55eed77809fd - std::panic::catch_unwind::heb66ca2bf3960f9b [INFO] [stderr] at src/libstd/panic.rs:388 [INFO] [stderr] 19: 0x55eed77809fd - std::rt::lang_start_internal::h7208f2146229fed7 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x55eed7769089 - std::rt::lang_start::h0cce52850fc00f93 [INFO] [stderr] at /rustc/8ec8125bea94852768b56958f05da47666c21ab0/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x55eed774bcea - main [INFO] [stderr] 22: 0x7f0275d942e1 - __libc_start_main [INFO] [stderr] 23: 0x55eed771ed5a - _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-1.5.1/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] error: build failed [INFO] running `"docker" "inspect" "4903a918efa7425bb696f85d55e276dd517cbcf3def7c280e80defdda3420ffd"` [INFO] running `"docker" "rm" "-f" "4903a918efa7425bb696f85d55e276dd517cbcf3def7c280e80defdda3420ffd"` [INFO] [stdout] 4903a918efa7425bb696f85d55e276dd517cbcf3def7c280e80defdda3420ffd