[INFO] updating cached repository crmaxx/fpc [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/crmaxx/fpc [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/crmaxx/fpc" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/crmaxx/fpc"` [INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/crmaxx/fpc'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/crmaxx/fpc" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/crmaxx/fpc"` [INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/crmaxx/fpc'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 5391fa2f32e80bd5195944a26a677acb2ccabf68 [INFO] sha for GitHub repo crmaxx/fpc: 5391fa2f32e80bd5195944a26a677acb2ccabf68 [INFO] validating manifest of crmaxx/fpc on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of crmaxx/fpc on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing crmaxx/fpc [INFO] finished frobbing crmaxx/fpc [INFO] frobbed toml for crmaxx/fpc written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/crmaxx/fpc/Cargo.toml [INFO] started frobbing crmaxx/fpc [INFO] finished frobbing crmaxx/fpc [INFO] frobbed toml for crmaxx/fpc written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/crmaxx/fpc/Cargo.toml [INFO] crate crmaxx/fpc already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking crmaxx/fpc against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-3/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/crmaxx/fpc:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 02bafea7ffd676ee608ef13cb93af7b920496d189d97ddd5f6384abf8eb63743 [INFO] running `"docker" "start" "-a" "02bafea7ffd676ee608ef13cb93af7b920496d189d97ddd5f6384abf8eb63743"` [INFO] [stderr] Compiling pkg-config v0.3.9 [INFO] [stderr] Checking cfg-if v0.1.2 [INFO] [stderr] Compiling cc v1.0.3 [INFO] [stderr] Compiling libc v0.2.34 [INFO] [stderr] Compiling siphasher v0.2.2 [INFO] [stderr] Checking byteorder v1.2.1 [INFO] [stderr] Checking futures v0.1.17 [INFO] [stderr] Checking slab v0.3.0 [INFO] [stderr] Compiling openssl v0.9.23 [INFO] [stderr] Checking lazycell v0.5.1 [INFO] [stderr] Checking matches v0.1.6 [INFO] [stderr] Checking scoped-tls v0.1.0 [INFO] [stderr] Checking lazy_static v1.0.0 [INFO] [stderr] Checking slab v0.4.0 [INFO] [stderr] Compiling build_const v0.2.0 [INFO] [stderr] Checking unicode-normalization v0.1.5 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Checking take v0.1.0 [INFO] [stderr] Checking smallvec v0.2.1 [INFO] [stderr] Compiling gcc v0.3.54 [INFO] [stderr] Compiling quote v0.3.15 [INFO] [stderr] Checking httparse v1.2.3 [INFO] [stderr] Checking itoa v0.3.4 [INFO] [stderr] Checking dtoa v0.4.2 [INFO] [stderr] Checking serde v1.0.27 [INFO] [stderr] Checking num-traits v0.1.41 [INFO] [stderr] Checking adler32 v1.0.2 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Checking base58 v0.1.0 [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Checking iovec v0.1.1 [INFO] [stderr] Checking rand v0.3.19 [INFO] [stderr] Checking num_cpus v1.8.0 [INFO] [stderr] Checking time v0.1.38 [INFO] [stderr] Checking atty v0.2.6 [INFO] [stderr] Checking log v0.4.1 [INFO] [stderr] Checking net2 v0.2.31 [INFO] [stderr] Checking unicode-bidi v0.3.4 [INFO] [stderr] Checking base64 v0.9.0 [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Compiling crc v1.7.0 [INFO] [stderr] Checking bytes v0.4.5 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking tokio-service v0.1.0 [INFO] [stderr] Checking relay v0.1.0 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Checking uuid v0.5.1 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Checking idna v0.1.4 [INFO] [stderr] Checking clap v2.29.0 [INFO] [stderr] Compiling openssl-sys v0.9.23 [INFO] [stderr] Checking mio v0.6.11 [INFO] [stderr] Checking tokio-io v0.1.4 [INFO] [stderr] Checking mime v0.3.5 [INFO] [stderr] Compiling phf_shared v0.7.21 [INFO] [stderr] Compiling rust-crypto v0.2.36 [INFO] [stderr] Checking url v1.6.0 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Compiling serde_derive_internals v0.19.0 [INFO] [stderr] Checking tokio-core v0.1.11 [INFO] [stderr] Checking phf v0.7.21 [INFO] [stderr] Checking libflate v0.1.14 [INFO] [stderr] Compiling phf_codegen 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-1.6.0/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] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] Compiling mime_guess v2.0.0-alpha.3 [INFO] [stderr] Checking tokio-proto v0.1.1 [INFO] [stderr] Checking hyper v0.11.10 [INFO] [stderr] Checking serde_urlencoded v0.5.1 [INFO] [stderr] Checking serde_json v1.0.9 [INFO] [stderr] Checking native-tls v0.1.4 [INFO] [stderr] Compiling serde_derive v1.0.27 [INFO] [stderr] Checking tokio-tls v0.1.3 [INFO] [stderr] error: failed to run custom build command for `mime_guess v2.0.0-alpha.3` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/mime_guess-ec20a19f5f74559d/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: 0x55f64dbb93fb - backtrace::backtrace::libunwind::trace::h80786597adfabf72 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55f64dbb93fb - backtrace::backtrace::trace_unsynchronized::hcac650387ca20819 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55f64dbb93fb - std::sys_common::backtrace::_print::h1b9354ff68cb5a2b [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55f64dbb93fb - std::sys_common::backtrace::print::hee32569be499cf66 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55f64dbb93fb - std::panicking::default_hook::{{closure}}::h57d4a5a18212e6c4 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x55f64dbb90d6 - std::panicking::default_hook::h6b5ac8e0c8ee81de [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x55f64dbb9abd - std::panicking::rust_panic_with_hook::h087293a0d0382d86 [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x55f64dbb9642 - std::panicking::continue_panic_fmt::h5398c0b14056de59 [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x55f64dbb9526 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x55f64dbce25d - core::panicking::panic_fmt::hc22ef80bd93ddcf4 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x55f64dbce357 - core::result::unwrap_failed::h52618310aa6d47ad [INFO] [stderr] at src/libcore/result.rs:1084 [INFO] [stderr] 11: 0x55f64db7fb90 - core::result::Result::unwrap::hacee376d01cf3b90 [INFO] [stderr] at /rustc/b5c7f157c20453dde8d47371abe73b32351b4e7f/src/libcore/result.rs:852 [INFO] [stderr] 12: 0x55f64db815e5 - build_script_gen_mime_types::main::h8c0fc336f604ff45 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-2.0.0-alpha.3/src/gen_mime_types.rs:22 [INFO] [stderr] 13: 0x55f64db6c5b0 - std::rt::lang_start::{{closure}}::h3bfdfd0f89176015 [INFO] [stderr] at /rustc/b5c7f157c20453dde8d47371abe73b32351b4e7f/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x55f64dbb9513 - std::rt::lang_start_internal::{{closure}}::h1a060554ddace6f7 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x55f64dbb9513 - std::panicking::try::do_call::h36cfd8d9c1d0d936 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x55f64dbbb60a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 17: 0x55f64dbb9fcd - std::panicking::try::h225224763b892cde [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x55f64dbb9fcd - std::panic::catch_unwind::h3043ed737cbd6e8e [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 19: 0x55f64dbb9fcd - std::rt::lang_start_internal::h97b8d999a39debed [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x55f64db6c589 - std::rt::lang_start::h063f6f10a27155e4 [INFO] [stderr] at /rustc/b5c7f157c20453dde8d47371abe73b32351b4e7f/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x55f64db82b6a - main [INFO] [stderr] 22: 0x7faa968f72e1 - __libc_start_main [INFO] [stderr] 23: 0x55f64db57fba - _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" "02bafea7ffd676ee608ef13cb93af7b920496d189d97ddd5f6384abf8eb63743"` [INFO] running `"docker" "rm" "-f" "02bafea7ffd676ee608ef13cb93af7b920496d189d97ddd5f6384abf8eb63743"` [INFO] [stdout] 02bafea7ffd676ee608ef13cb93af7b920496d189d97ddd5f6384abf8eb63743