[INFO] cloning repository s5003597/rust-get_temp [INFO] running `"git" "clone" "--bare" "git://github.com/s5003597/rust-get_temp.git" "work/cache/sources/gh/s5003597/rust-get_temp"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/s5003597/rust-get_temp'... [INFO] running `"git" "clone" "work/cache/sources/gh/s5003597/rust-get_temp" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/s5003597/rust-get_temp"` [INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/s5003597/rust-get_temp'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/s5003597/rust-get_temp" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/s5003597/rust-get_temp"` [INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/s5003597/rust-get_temp'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 5723d791c2cce68f65194024ecf8a3189a34067d [INFO] sha for GitHub repo s5003597/rust-get_temp: 5723d791c2cce68f65194024ecf8a3189a34067d [INFO] validating manifest of s5003597/rust-get_temp on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of s5003597/rust-get_temp on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing s5003597/rust-get_temp [INFO] finished frobbing s5003597/rust-get_temp [INFO] frobbed toml for s5003597/rust-get_temp written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/s5003597/rust-get_temp/Cargo.toml [INFO] started frobbing s5003597/rust-get_temp [INFO] finished frobbing s5003597/rust-get_temp [INFO] frobbed toml for s5003597/rust-get_temp written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/s5003597/rust-get_temp/Cargo.toml [INFO] crate s5003597/rust-get_temp already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking s5003597/rust-get_temp against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008 [INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-3/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/s5003597/rust-get_temp:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 111fb6366a09de79d0cd98baa30ff0732b5ed3c8bfdabc9fd7ccda43cd444a5f [INFO] running `"docker" "start" "-a" "111fb6366a09de79d0cd98baa30ff0732b5ed3c8bfdabc9fd7ccda43cd444a5f"` [INFO] [stderr] Checking num_cpus v1.7.0 [INFO] [stderr] Checking time v0.1.38 [INFO] [stderr] Compiling rand v0.3.17 [INFO] [stderr] Checking serde_json v1.0.5 [INFO] [stderr] Checking uuid v0.5.1 [INFO] [stderr] Compiling openssl v0.9.20 [INFO] [stderr] Checking tokio-io v0.1.3 [INFO] [stderr] Checking url v1.6.0 [INFO] [stderr] Checking libflate v0.1.12 [INFO] [stderr] Checking futures-cpupool v0.1.7 [INFO] [stderr] Checking tokio-core v0.1.10 [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 serde_urlencoded v0.5.1 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Checking native-tls v0.1.4 [INFO] [stderr] Checking tokio-proto v0.1.1 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Checking tokio-tls v0.1.3 [INFO] [stderr] Compiling mime_guess v2.0.0-alpha.2 [INFO] [stderr] Checking hyper v0.11.6 [INFO] [stderr] error: failed to run custom build command for `mime_guess v2.0.0-alpha.2` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/mime_guess-8968935d54801387/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: 0x55aac46c6b9b - backtrace::backtrace::libunwind::trace::h3eb7dec79b0cb248 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55aac46c6b9b - backtrace::backtrace::trace_unsynchronized::h828522acfd8fecfd [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55aac46c6b9b - std::sys_common::backtrace::_print::ha50329dede3e270e [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55aac46c6b9b - std::sys_common::backtrace::print::ha6d7f96740481555 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55aac46c6b9b - std::panicking::default_hook::{{closure}}::h48c4812e51e499b0 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x55aac46c6877 - std::panicking::default_hook::h5d25d0fa83093442 [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x55aac46c7260 - std::panicking::rust_panic_with_hook::h1babb2b4ac73106c [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x55aac46c6de2 - std::panicking::continue_panic_fmt::hb318720956a96dd4 [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x55aac46c6cc6 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x55aac46db9cd - core::panicking::panic_fmt::h78250769f89ff6a0 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x55aac46ba138 - core::result::unwrap_failed::h4c0fcf4d5aaec28d [INFO] [stderr] at /rustc/848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/src/libcore/macros.rs:18 [INFO] [stderr] 11: 0x55aac468773c - core::result::Result::unwrap::h7f2abdc8398c984d [INFO] [stderr] at /rustc/848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/src/libcore/result.rs:800 [INFO] [stderr] 12: 0x55aac468a995 - build_script_gen_mime_types::main::h64d91909f72f251b [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-2.0.0-alpha.2/src/gen_mime_types.rs:22 [INFO] [stderr] 13: 0x55aac46b1170 - std::rt::lang_start::{{closure}}::h0499465da21f46c5 [INFO] [stderr] at /rustc/848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x55aac46c6cb3 - std::rt::lang_start_internal::{{closure}}::h8302806cea4153ed [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x55aac46c6cb3 - std::panicking::try::do_call::hc811096721c4b953 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x55aac46c8bfa - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 17: 0x55aac46c776d - std::panicking::try::h132c927956f6dad4 [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x55aac46c776d - std::panic::catch_unwind::h2f6ea137782ab73f [INFO] [stderr] at src/libstd/panic.rs:388 [INFO] [stderr] 19: 0x55aac46c776d - std::rt::lang_start_internal::h0f27bcf63030d183 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x55aac46b1149 - std::rt::lang_start::h65fc2e44a70f168e [INFO] [stderr] at /rustc/848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x55aac468bfca - main [INFO] [stderr] 22: 0x7ff5890a52e1 - __libc_start_main [INFO] [stderr] 23: 0x55aac46663ca - _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" "111fb6366a09de79d0cd98baa30ff0732b5ed3c8bfdabc9fd7ccda43cd444a5f"` [INFO] running `"docker" "rm" "-f" "111fb6366a09de79d0cd98baa30ff0732b5ed3c8bfdabc9fd7ccda43cd444a5f"` [INFO] [stdout] 111fb6366a09de79d0cd98baa30ff0732b5ed3c8bfdabc9fd7ccda43cd444a5f