[INFO] updating cached repository teddywing/kipper [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/teddywing/kipper [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/teddywing/kipper" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/teddywing/kipper"` [INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/teddywing/kipper'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/teddywing/kipper" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/teddywing/kipper"` [INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/teddywing/kipper'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 4f7c22a6ddf98a483946c1994d203747b00b51cc [INFO] sha for GitHub repo teddywing/kipper: 4f7c22a6ddf98a483946c1994d203747b00b51cc [INFO] validating manifest of teddywing/kipper on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of teddywing/kipper on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing teddywing/kipper [INFO] finished frobbing teddywing/kipper [INFO] frobbed toml for teddywing/kipper written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/teddywing/kipper/Cargo.toml [INFO] started frobbing teddywing/kipper [INFO] finished frobbing teddywing/kipper [INFO] frobbed toml for teddywing/kipper written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/teddywing/kipper/Cargo.toml [INFO] crate teddywing/kipper already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking teddywing/kipper against master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 for pr-62507 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-4/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/teddywing/kipper:/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" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 2286825db2427ec053d94bb018938359cc79e5041b4a95a207da608c01d47d7d [INFO] running `"docker" "start" "-a" "2286825db2427ec053d94bb018938359cc79e5041b4a95a207da608c01d47d7d"` [INFO] [stderr] Compiling libc v0.2.33 [INFO] [stderr] Compiling openssl v0.9.20 [INFO] [stderr] Compiling crc-core v0.1.0 [INFO] [stderr] Checking buf_redux v0.1.3 [INFO] [stderr] Checking serde v1.0.19 [INFO] [stderr] Checking json v0.11.10 [INFO] [stderr] Compiling openssl-sys v0.9.20 [INFO] [stderr] Checking iovec v0.1.1 [INFO] [stderr] Checking num_cpus v1.7.0 [INFO] [stderr] Compiling miniz-sys v0.1.10 [INFO] [stderr] Checking rand v0.3.18 [INFO] [stderr] Checking memchr v1.0.2 [INFO] [stderr] Checking time v0.1.38 [INFO] [stderr] Checking net2 v0.2.31 [INFO] [stderr] Checking filetime v0.1.14 [INFO] [stderr] Compiling brotli-sys v0.2.1 [INFO] [stderr] Compiling http-muncher v0.3.1 [INFO] [stderr] Compiling crc v1.5.0 [INFO] [stderr] Checking bytes v0.4.5 [INFO] [stderr] Checking futures-cpupool v0.1.7 [INFO] [stderr] Checking aho-corasick v0.6.3 [INFO] [stderr] Checking thread_local v0.3.4 [INFO] [stderr] Checking mio v0.6.11 [INFO] [stderr] Checking url v1.6.0 [INFO] [stderr] Checking uuid v0.1.18 [INFO] [stderr] Checking tempdir v0.3.5 [INFO] [stderr] Checking uuid v0.5.1 [INFO] [stderr] Checking term v0.2.14 [INFO] [stderr] Checking serde v0.6.15 [INFO] [stderr] Checking chrono v0.2.25 [INFO] [stderr] Checking chrono v0.4.0 [INFO] [stderr] Checking tokio-io v0.1.3 [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] Checking regex v0.2.2 [INFO] [stderr] Checking url v0.2.38 [INFO] [stderr] Checking mime v0.3.5 [INFO] [stderr] Checking tokio-core v0.1.10 [INFO] [stderr] Checking libflate v0.1.12 [INFO] [stderr] Checking flate2 v0.2.20 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Checking stderrlog v0.2.3 [INFO] [stderr] Checking tiny_http v0.5.8 [INFO] [stderr] Checking tokio-proto v0.1.1 [INFO] [stderr] Checking mime v0.1.3 [INFO] [stderr] Checking env_logger v0.3.5 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Checking serde_json v1.0.5 [INFO] [stderr] Checking serde_urlencoded v0.5.1 [INFO] [stderr] Compiling mime_guess v1.5.0 [INFO] [stderr] Compiling mime_guess v2.0.0-alpha.2 [INFO] [stderr] Checking hyper v0.11.6 [INFO] [stderr] Checking native-tls v0.1.4 [INFO] [stderr] Checking brotli2 v0.2.2 [INFO] [stderr] Checking tokio-tls v0.1.3 [INFO] [stderr] error: failed to run custom build command for `mime_guess v1.5.0` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/mime_guess-5f58f0ad750671ae/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:1051:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x5573e7d0c33b - backtrace::backtrace::libunwind::trace::h4f04af92f39f2b78 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x5573e7d0c33b - backtrace::backtrace::trace_unsynchronized::hb28ce8d2b7fb3e31 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x5573e7d0c33b - std::sys_common::backtrace::_print::he3f49d2d13a51ff1 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x5573e7d0c33b - std::sys_common::backtrace::print::h46c2f3b13519e9bf [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x5573e7d0c33b - std::panicking::default_hook::{{closure}}::h6694acddafc67583 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x5573e7d0c017 - std::panicking::default_hook::hb4761d2feeb6d93c [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x5573e7d0ca00 - std::panicking::rust_panic_with_hook::h7a5f9620b0a832bc [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x5573e7d0c582 - std::panicking::continue_panic_fmt::h76588b16c9674f9c [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x5573e7d0c466 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x5573e7d2176d - core::panicking::panic_fmt::hcce9be08ab68e123 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x5573e7cfee68 - core::result::unwrap_failed::hf2e26ef2c187e5c4 [INFO] [stderr] at /rustc/78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/src/libcore/macros.rs:18 [INFO] [stderr] 11: 0x5573e7cd9fec - core::result::Result::unwrap::h5fb407cfd40ac22a [INFO] [stderr] at /rustc/78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/src/libcore/result.rs:852 [INFO] [stderr] 12: 0x5573e7cefdd5 - build_script_gen_mime_types::main::h42dc5ba4fde6424a [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-1.5.0/src/gen_mime_types.rs:16 [INFO] [stderr] 13: 0x5573e7cf9d10 - std::rt::lang_start::{{closure}}::h2ee7258a9d3d8ae4 [INFO] [stderr] at /rustc/78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x5573e7d0c453 - std::rt::lang_start_internal::{{closure}}::h32e298b4b9152770 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x5573e7d0c453 - std::panicking::try::do_call::hc8de7cda8a6a61da [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x5573e7d0e39a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 17: 0x5573e7d0cf0d - std::panicking::try::h2d3ab36572ae54da [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x5573e7d0cf0d - std::panic::catch_unwind::h4b587439b0094333 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 19: 0x5573e7d0cf0d - std::rt::lang_start_internal::h0772ca1bc29dd619 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x5573e7cf9ce9 - std::rt::lang_start::h5788f46940028fda [INFO] [stderr] at /rustc/78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x5573e7cf028a - main [INFO] [stderr] 22: 0x7f16b46f72e1 - __libc_start_main [INFO] [stderr] 23: 0x5573e7cc793a - _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" "2286825db2427ec053d94bb018938359cc79e5041b4a95a207da608c01d47d7d"` [INFO] running `"docker" "rm" "-f" "2286825db2427ec053d94bb018938359cc79e5041b4a95a207da608c01d47d7d"` [INFO] [stdout] 2286825db2427ec053d94bb018938359cc79e5041b4a95a207da608c01d47d7d