[INFO] cloning repository xliiv/dashboard [INFO] running `"git" "clone" "--bare" "git://github.com/xliiv/dashboard.git" "work/cache/sources/gh/xliiv/dashboard"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/xliiv/dashboard'... [INFO] running `"git" "clone" "work/cache/sources/gh/xliiv/dashboard" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/xliiv/dashboard"` [INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/xliiv/dashboard'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/xliiv/dashboard" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/xliiv/dashboard"` [INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/xliiv/dashboard'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 53d0f6e744656f9387ddef4e54169395651f2bb1 [INFO] sha for GitHub repo xliiv/dashboard: 53d0f6e744656f9387ddef4e54169395651f2bb1 [INFO] validating manifest of xliiv/dashboard on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of xliiv/dashboard on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing xliiv/dashboard [INFO] finished frobbing xliiv/dashboard [INFO] frobbed toml for xliiv/dashboard written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/xliiv/dashboard/Cargo.toml [INFO] started frobbing xliiv/dashboard [INFO] finished frobbing xliiv/dashboard [INFO] frobbed toml for xliiv/dashboard written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/xliiv/dashboard/Cargo.toml [INFO] crate xliiv/dashboard already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded handlebars-iron v0.25.0 [INFO] [stderr] Downloaded slog-scope v4.0.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking xliiv/dashboard against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-7/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/xliiv/dashboard:/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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 35e56a0d29ad62d8cfa442e8051c1f004e206c132bfe1ead18514b5451dad379 [INFO] running `"docker" "start" "-a" "35e56a0d29ad62d8cfa442e8051c1f004e206c132bfe1ead18514b5451dad379"` [INFO] [stderr] Compiling version_check v0.1.2 [INFO] [stderr] Compiling libc v0.2.24 [INFO] [stderr] Compiling siphasher v0.2.2 [INFO] [stderr] Checking num-traits v0.1.39 [INFO] [stderr] Checking serde v0.8.23 [INFO] [stderr] Checking cfg-if v0.1.1 [INFO] [stderr] Checking serde v1.0.8 [INFO] [stderr] Checking quick-error v1.2.0 [INFO] [stderr] Checking same-file v0.1.3 [INFO] [stderr] Compiling redis v0.8.0 [INFO] [stderr] Checking lazycell v0.4.0 [INFO] [stderr] Checking buf_redux v0.3.0 [INFO] [stderr] Checking sequence_trie v0.2.1 [INFO] [stderr] Checking slog v2.0.6 [INFO] [stderr] Checking crossbeam v0.2.10 [INFO] [stderr] Checking unicode-segmentation v1.2.0 [INFO] [stderr] Checking vec_map v0.8.0 [INFO] [stderr] Checking bitflags v0.8.2 [INFO] [stderr] Checking route-recognizer v0.1.12 [INFO] [stderr] Checking sha1 v0.2.0 [INFO] [stderr] Checking natord v1.0.9 [INFO] [stderr] Checking unicode-bidi v0.3.3 [INFO] [stderr] Checking unsafe-any v0.4.2 [INFO] [stderr] Checking base64 v0.5.2 [INFO] [stderr] Checking mime v0.2.6 [INFO] [stderr] Checking conduit-mime-types v0.7.3 [INFO] [stderr] Compiling backtrace-sys v0.1.11 [INFO] [stderr] Checking error v0.1.9 [INFO] [stderr] Checking walkdir v1.0.7 [INFO] [stderr] Checking num_cpus v1.5.1 [INFO] [stderr] Checking time v0.1.37 [INFO] [stderr] Checking rand v0.3.15 [INFO] [stderr] Checking memchr v1.0.1 [INFO] [stderr] Checking thread-id v3.1.0 [INFO] [stderr] Checking iovec v0.1.0 [INFO] [stderr] Checking net2 v0.2.29 [INFO] [stderr] Checking memchr v0.1.11 [INFO] [stderr] Checking term_size v0.3.0 [INFO] [stderr] Checking atty v0.2.2 [INFO] [stderr] Checking isatty v0.1.3 [INFO] [stderr] Checking num-integer v0.1.34 [INFO] [stderr] Checking num-complex v0.1.38 [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Checking slog-scope v4.0.0 [INFO] [stderr] Checking typemap v0.3.3 [INFO] [stderr] Checking idna v0.1.2 [INFO] [stderr] Checking aho-corasick v0.6.3 [INFO] [stderr] Checking thread_local v0.3.3 [INFO] [stderr] Checking bytes v0.4.4 [INFO] [stderr] Checking clap v2.24.2 [INFO] [stderr] Checking mio v0.6.9 [INFO] [stderr] Checking num-iter v0.1.33 [INFO] [stderr] Compiling serde_derive_internals v0.15.1 [INFO] [stderr] Compiling derive-error-chain v0.10.1 [INFO] [stderr] Checking plugin v0.2.6 [INFO] [stderr] Checking serde_json v0.8.6 [INFO] [stderr] Checking num-bigint v0.1.39 [INFO] [stderr] Checking tempdir v0.3.5 [INFO] [stderr] Checking uuid v0.2.3 [INFO] [stderr] Checking uuid v0.5.0 [INFO] [stderr] Checking regex v0.2.2 [INFO] [stderr] Checking url v1.5.0 [INFO] [stderr] Checking num-rational v0.1.38 [INFO] [stderr] Checking phf_shared v0.7.21 [INFO] [stderr] Checking num v0.1.39 [INFO] [stderr] Checking phf v0.7.21 [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] Compiling phf_generator v0.7.21 [INFO] [stderr] Checking chrono v0.3.1 [INFO] [stderr] Checking hyper v0.10.12 [INFO] [stderr] Checking ws v0.7.3 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Checking serde_json v1.0.2 [INFO] [stderr] Compiling serde_derive v1.0.8 [INFO] [stderr] Compiling mime_guess v1.8.1 [INFO] [stderr] Checking slog-term v2.0.1 [INFO] [stderr] Checking handlebars v0.27.0 [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-8d2aa80b0ac56558/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: 0x555c9e94961b - backtrace::backtrace::libunwind::trace::h00e2f01ca6755a19 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x555c9e94961b - backtrace::backtrace::trace_unsynchronized::hc2e55f9123c24578 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x555c9e94961b - std::sys_common::backtrace::_print::h878d975ca669e1b4 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x555c9e94961b - std::sys_common::backtrace::print::h1b2f6b4885b021f3 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x555c9e94961b - std::panicking::default_hook::{{closure}}::he9ab19abef5c787f [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 5: 0x555c9e94931c - std::panicking::default_hook::h9b73316e8577c3fa [INFO] [stderr] at src/libstd/panicking.rs:212 [INFO] [stderr] 6: 0x555c9e949ce0 - std::panicking::rust_panic_with_hook::he062866264d328c5 [INFO] [stderr] at src/libstd/panicking.rs:475 [INFO] [stderr] 7: 0x555c9e949862 - std::panicking::continue_panic_fmt::hd91e15ffe4fde332 [INFO] [stderr] at src/libstd/panicking.rs:382 [INFO] [stderr] 8: 0x555c9e949746 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:309 [INFO] [stderr] 9: 0x555c9e95e88d - core::panicking::panic_fmt::h684eb94a03e3ec1d [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x555c9e93cbe8 - core::result::unwrap_failed::h02d0ce029dfb0f54 [INFO] [stderr] at /rustc/d3301713b54af69ca9de941a8c6b0d8287dbd6df/src/libcore/macros.rs:18 [INFO] [stderr] 11: 0x555c9e908ecc - core::result::Result::unwrap::h80cf8183cfee076a [INFO] [stderr] at /rustc/d3301713b54af69ca9de941a8c6b0d8287dbd6df/src/libcore/result.rs:800 [INFO] [stderr] 12: 0x555c9e90feb5 - build_script_gen_mime_types::main::h1b60d35248ddd2dc [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: 0x555c9e92bad0 - std::rt::lang_start::{{closure}}::h9dbceedb1e8ab02b [INFO] [stderr] at /rustc/d3301713b54af69ca9de941a8c6b0d8287dbd6df/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x555c9e949733 - std::rt::lang_start_internal::{{closure}}::hac4055a4b24c3806 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x555c9e949733 - std::panicking::try::do_call::h0bdfdef338a7b8de [INFO] [stderr] at src/libstd/panicking.rs:294 [INFO] [stderr] 16: 0x555c9e94bada - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 17: 0x555c9e94a1ed - std::panicking::try::h5986cc11523af350 [INFO] [stderr] at src/libstd/panicking.rs:273 [INFO] [stderr] 18: 0x555c9e94a1ed - std::panic::catch_unwind::h5e6e2d11127cecca [INFO] [stderr] at src/libstd/panic.rs:388 [INFO] [stderr] 19: 0x555c9e94a1ed - std::rt::lang_start_internal::hd1ad303a81183dc4 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x555c9e92baa9 - std::rt::lang_start::hcf828336f93d24ce [INFO] [stderr] at /rustc/d3301713b54af69ca9de941a8c6b0d8287dbd6df/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x555c9e9114fa - main [INFO] [stderr] 22: 0x7f88c9ebe2e1 - __libc_start_main [INFO] [stderr] 23: 0x555c9e8e8faa - _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" "35e56a0d29ad62d8cfa442e8051c1f004e206c132bfe1ead18514b5451dad379"` [INFO] running `"docker" "rm" "-f" "35e56a0d29ad62d8cfa442e8051c1f004e206c132bfe1ead18514b5451dad379"` [INFO] [stdout] 35e56a0d29ad62d8cfa442e8051c1f004e206c132bfe1ead18514b5451dad379