[INFO] updating cached repository s5003597/rust-get_temp [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/s5003597/rust-get_temp [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/s5003597/rust-get_temp" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/s5003597/rust-get_temp"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/s5003597/rust-get_temp'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/s5003597/rust-get_temp" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/s5003597/rust-get_temp"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/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#60960a260f7b5c695fd0717311d72ce62dd4eb43 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of s5003597/rust-get_temp on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-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-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/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-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/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/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking s5003597/rust-get_temp against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-6/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/s5003597/rust-get_temp:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] bf4fe3adc29f48364eff2f4c2ecf1078995c2939f2fb351da4f002fdf8efb933 [INFO] running `"docker" "start" "-a" "bf4fe3adc29f48364eff2f4c2ecf1078995c2939f2fb351da4f002fdf8efb933"` [INFO] [stderr] Checking serde v1.0.17 [INFO] [stderr] Compiling rand v0.3.17 [INFO] [stderr] Checking url v1.6.0 [INFO] [stderr] Checking openssl v0.9.20 [INFO] [stderr] Checking tokio-proto v0.1.1 [INFO] [stderr] Checking uuid v0.5.1 [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 phf_generator v0.7.21 [INFO] [stderr] Compiling phf_codegen v0.7.21 [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 tokio-tls v0.1.3 [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-497e2a3cbd3543a4/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: 0x560a8b48053b - backtrace::backtrace::libunwind::trace::h3a6a6e8afb7ff2de [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x560a8b48053b - backtrace::backtrace::trace_unsynchronized::h2220292c79f07c05 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x560a8b48053b - std::sys_common::backtrace::_print::h8ff1c2c5cb3b84f7 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x560a8b48053b - std::sys_common::backtrace::print::h2254c58d69a73304 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x560a8b48053b - std::panicking::default_hook::{{closure}}::hc21cbd062363cef6 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x560a8b480216 - std::panicking::default_hook::hfea076cda52c2914 [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x560a8b480bfd - std::panicking::rust_panic_with_hook::h746830f9f479e849 [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x560a8b480782 - std::panicking::continue_panic_fmt::h37fa2235c2440555 [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x560a8b480666 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x560a8b4954bd - core::panicking::panic_fmt::hc32305cc7ba59cf9 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x560a8b4955b7 - core::result::unwrap_failed::h11b2f6982d0c0006 [INFO] [stderr] at src/libcore/result.rs:1084 [INFO] [stderr] 11: 0x560a8b446fe0 - core::result::Result::unwrap::hd48a3872404f7da4 [INFO] [stderr] at /rustc/266783e4e09e4e9d5307c1c8e695659c58bbcac7/src/libcore/result.rs:852 [INFO] [stderr] 12: 0x560a8b448fb5 - build_script_gen_mime_types::main::he2cfeb794c0767ed [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: 0x560a8b433ce0 - std::rt::lang_start::{{closure}}::ha80415fcb7c190a4 [INFO] [stderr] at /rustc/266783e4e09e4e9d5307c1c8e695659c58bbcac7/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x560a8b480653 - std::rt::lang_start_internal::{{closure}}::h14c5bec2472d54ad [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x560a8b480653 - std::panicking::try::do_call::h88f516924fc6a288 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x560a8b48274a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 17: 0x560a8b48110d - std::panicking::try::ha613ca8bf0a1302a [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x560a8b48110d - std::panic::catch_unwind::h68d4ca98047bc7c5 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 19: 0x560a8b48110d - std::rt::lang_start_internal::h600c3ba1b556e68a [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x560a8b433cb9 - std::rt::lang_start::hf044ca34f1a6b9b1 [INFO] [stderr] at /rustc/266783e4e09e4e9d5307c1c8e695659c58bbcac7/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x560a8b44a53a - main [INFO] [stderr] 22: 0x7f6b648ee2e1 - __libc_start_main [INFO] [stderr] 23: 0x560a8b41f6ea - _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" "bf4fe3adc29f48364eff2f4c2ecf1078995c2939f2fb351da4f002fdf8efb933"` [INFO] running `"docker" "rm" "-f" "bf4fe3adc29f48364eff2f4c2ecf1078995c2939f2fb351da4f002fdf8efb933"` [INFO] [stdout] bf4fe3adc29f48364eff2f4c2ecf1078995c2939f2fb351da4f002fdf8efb933