[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 master#9f06855064ed06a50c496577b21ca50f92a2e67d for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-5/master#9f06855064ed06a50c496577b21ca50f92a2e67d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/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" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 94f568cf411bab2c5210da65070006ebee37a4f41f696f68d6367496372e356a
[INFO] running `"docker" "start" "-a" "94f568cf411bab2c5210da65070006ebee37a4f41f696f68d6367496372e356a"`
[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 log v0.3.8
[INFO] [stderr]     Checking percent-encoding v1.0.0
[INFO] [stderr]     Checking httparse v1.2.3
[INFO] [stderr]    Compiling gcc v0.3.51
[INFO] [stderr]     Checking num-traits v0.1.39
[INFO] [stderr]     Checking dtoa v0.4.1
[INFO] [stderr]     Checking rustc-demangle v0.1.4
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]     Checking serde v1.0.8
[INFO] [stderr]     Checking itoa v0.3.1
[INFO] [stderr]     Checking cfg-if v0.1.1
[INFO] [stderr]     Checking same-file v0.1.3
[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 quick-error v1.2.0
[INFO] [stderr]    Compiling redis v0.8.0
[INFO] [stderr]     Checking slog v2.0.6
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking unicode-segmentation v1.2.0
[INFO] [stderr]     Checking route-recognizer v0.1.12
[INFO] [stderr]     Checking crossbeam v0.2.10
[INFO] [stderr]     Checking term v0.4.5
[INFO] [stderr]     Checking bitflags v0.8.2
[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 conduit-mime-types v0.7.3
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]     Checking num_cpus v1.5.1
[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 memchr v0.1.11
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking isatty v0.1.3
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking num-integer v0.1.34
[INFO] [stderr]     Checking num-complex v0.1.38
[INFO] [stderr]     Checking serde_json v0.8.6
[INFO] [stderr]     Checking net2 v0.2.29
[INFO] [stderr]     Checking walkdir v1.0.7
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking idna v0.1.2
[INFO] [stderr]     Checking slog-scope v4.0.0
[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]    Compiling backtrace-sys v0.1.11
[INFO] [stderr]     Checking num-iter v0.1.33
[INFO] [stderr]     Checking mio v0.6.9
[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]    Compiling derive-error-chain v0.10.1
[INFO] [stderr]    Compiling serde_derive_internals v0.15.1
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking url v1.5.0
[INFO] [stderr]     Checking num-rational v0.1.38
[INFO] [stderr]    Compiling phf_shared 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]     Checking num v0.1.39
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]     Checking hyper v0.10.12
[INFO] [stderr]     Checking ws v0.7.3
[INFO] [stderr]     Checking phf v0.7.21
[INFO] [stderr]     Checking chrono v0.3.1
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling serde_derive v1.0.8
[INFO] [stderr]     Checking serde_json v1.0.2
[INFO] [stderr]    Compiling mime_guess v1.8.1
[INFO] [stderr]     Checking slog-term v2.0.1
[INFO] [stderr]     Checking iron v0.5.1
[INFO] [stderr]     Checking persistent v0.3.0
[INFO] [stderr]     Checking mount v0.3.0
[INFO] [stderr]     Checking router v0.5.1
[INFO] [stderr]     Checking iron-test v0.5.0
[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-7b7ad71bcf848f74/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:     0x55b0bd4b061b - backtrace::backtrace::libunwind::trace::hc6a4966d389b62be
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55b0bd4b061b - backtrace::backtrace::trace_unsynchronized::h234cd6c2c95fa587
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55b0bd4b061b - std::sys_common::backtrace::_print::h2896bece16680b31
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x55b0bd4b061b - std::sys_common::backtrace::print::h5f4d4b954705d426
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x55b0bd4b061b - std::panicking::default_hook::{{closure}}::h3d52949e2d73c1aa
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    5:     0x55b0bd4b031c - std::panicking::default_hook::h4b88c02cc00064f5
[INFO] [stderr]                                at src/libstd/panicking.rs:212
[INFO] [stderr]    6:     0x55b0bd4b0ce0 - std::panicking::rust_panic_with_hook::he5596ad1952b7279
[INFO] [stderr]                                at src/libstd/panicking.rs:475
[INFO] [stderr]    7:     0x55b0bd4b0862 - std::panicking::continue_panic_fmt::h13f3a9aeaf0459c4
[INFO] [stderr]                                at src/libstd/panicking.rs:382
[INFO] [stderr]    8:     0x55b0bd4b0746 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:309
[INFO] [stderr]    9:     0x55b0bd4c588d - core::panicking::panic_fmt::h35cf1b39b1635ed5
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   10:     0x55b0bd4a3d28 - core::result::unwrap_failed::hf3810cd5e6a9f960
[INFO] [stderr]                                at /rustc/9f06855064ed06a50c496577b21ca50f92a2e67d/src/libcore/macros.rs:18
[INFO] [stderr]   11:     0x55b0bd46fd8c - core::result::Result<T,E>::unwrap::hac8da9ad393e7ffd
[INFO] [stderr]                                at /rustc/9f06855064ed06a50c496577b21ca50f92a2e67d/src/libcore/result.rs:800
[INFO] [stderr]   12:     0x55b0bd476eb5 - build_script_gen_mime_types::main::h36a877f9b62475a4
[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:     0x55b0bd492ad0 - std::rt::lang_start::{{closure}}::h7cb2b994ac747bef
[INFO] [stderr]                                at /rustc/9f06855064ed06a50c496577b21ca50f92a2e67d/src/libstd/rt.rs:64
[INFO] [stderr]   14:     0x55b0bd4b0733 - std::rt::lang_start_internal::{{closure}}::h97d240c87982728f
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   15:     0x55b0bd4b0733 - std::panicking::try::do_call::h657ecdd23710c935
[INFO] [stderr]                                at src/libstd/panicking.rs:294
[INFO] [stderr]   16:     0x55b0bd4b2ada - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stderr]   17:     0x55b0bd4b11ed - std::panicking::try::h52772d620cb80373
[INFO] [stderr]                                at src/libstd/panicking.rs:273
[INFO] [stderr]   18:     0x55b0bd4b11ed - std::panic::catch_unwind::hac02eb84ea8f3a3e
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]   19:     0x55b0bd4b11ed - std::rt::lang_start_internal::h9fab34d7c96dfdc9
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   20:     0x55b0bd492aa9 - std::rt::lang_start::h1b85158e5222ed81
[INFO] [stderr]                                at /rustc/9f06855064ed06a50c496577b21ca50f92a2e67d/src/libstd/rt.rs:64
[INFO] [stderr]   21:     0x55b0bd4784fa - main
[INFO] [stderr]   22:     0x7f393cc962e1 - __libc_start_main
[INFO] [stderr]   23:     0x55b0bd44ffaa - _start
[INFO] [stderr]   24:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "94f568cf411bab2c5210da65070006ebee37a4f41f696f68d6367496372e356a"`
[INFO] running `"docker" "rm" "-f" "94f568cf411bab2c5210da65070006ebee37a4f41f696f68d6367496372e356a"`
[INFO] [stdout] 94f568cf411bab2c5210da65070006ebee37a4f41f696f68d6367496372e356a