[INFO] updating cached repository wmww/buzzfeed_CLI [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/wmww/buzzfeed_CLI [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/wmww/buzzfeed_CLI" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/wmww/buzzfeed_CLI"` [INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/wmww/buzzfeed_CLI'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/wmww/buzzfeed_CLI" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/wmww/buzzfeed_CLI"` [INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/wmww/buzzfeed_CLI'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 56ca7e0f4a3a360c9a23d440d1932640623acb36 [INFO] sha for GitHub repo wmww/buzzfeed_CLI: 56ca7e0f4a3a360c9a23d440d1932640623acb36 [INFO] validating manifest of wmww/buzzfeed_CLI on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of wmww/buzzfeed_CLI on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing wmww/buzzfeed_CLI [INFO] finished frobbing wmww/buzzfeed_CLI [INFO] frobbed toml for wmww/buzzfeed_CLI written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/wmww/buzzfeed_CLI/Cargo.toml [INFO] started frobbing wmww/buzzfeed_CLI [INFO] finished frobbing wmww/buzzfeed_CLI [INFO] frobbed toml for wmww/buzzfeed_CLI written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/wmww/buzzfeed_CLI/Cargo.toml [INFO] crate wmww/buzzfeed_CLI already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking wmww/buzzfeed_CLI against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-2/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/wmww/buzzfeed_CLI:/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 4af17974d7a2d4326f0f925d488af04c1e09e3904241d389b88726144ad82851 [INFO] running `"docker" "start" "-a" "4af17974d7a2d4326f0f925d488af04c1e09e3904241d389b88726144ad82851"` [INFO] [stderr] Checking libc v0.2.34 [INFO] [stderr] Checking lazycell v0.5.1 [INFO] [stderr] Compiling openssl v0.9.23 [INFO] [stderr] Checking build_const v0.2.0 [INFO] [stderr] Checking num-traits v0.1.41 [INFO] [stderr] Checking serde v1.0.26 [INFO] [stderr] Checking log v0.4.0 [INFO] [stderr] Compiling openssl-sys v0.9.23 [INFO] [stderr] Compiling crc v1.6.0 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking url v1.6.0 [INFO] [stderr] Checking libflate v0.1.13 [INFO] [stderr] Checking iovec v0.1.1 [INFO] [stderr] Checking net2 v0.2.31 [INFO] [stderr] Checking num_cpus v1.8.0 [INFO] [stderr] Checking rand v0.3.19 [INFO] [stderr] Checking time v0.1.38 [INFO] [stderr] Checking bytes v0.4.5 [INFO] [stderr] Checking futures-cpupool v0.1.7 [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 mio v0.6.11 [INFO] [stderr] Checking tokio-io v0.1.4 [INFO] [stderr] Checking uuid v0.5.1 [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.3 [INFO] [stderr] Checking tokio-core v0.1.11 [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-cfccf5303cc4741f/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: 0x55e459e313fb - backtrace::backtrace::libunwind::trace::h5d27dcba3b250cfe [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55e459e313fb - backtrace::backtrace::trace_unsynchronized::h239341a8b1cadbab [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55e459e313fb - std::sys_common::backtrace::_print::hb0e5dd39180a1838 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55e459e313fb - std::sys_common::backtrace::print::h9b385b2285f057b8 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55e459e313fb - std::panicking::default_hook::{{closure}}::he3310a15a78966b4 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x55e459e310d6 - std::panicking::default_hook::h2986f418df62eff4 [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x55e459e31abd - std::panicking::rust_panic_with_hook::h15065386631d2a9d [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x55e459e31642 - std::panicking::continue_panic_fmt::h5e7761875fda3864 [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x55e459e31526 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x55e459e4625d - core::panicking::panic_fmt::ha57541b4d360b196 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x55e459e46357 - core::result::unwrap_failed::h30a7262287ea7c1e [INFO] [stderr] at src/libcore/result.rs:1084 [INFO] [stderr] 11: 0x55e459df7b90 - core::result::Result::unwrap::hc2d6e0dfa286336e [INFO] [stderr] at /rustc/452087b4bf18cece2d52d7cd8c9147195e5404bf/src/libcore/result.rs:852 [INFO] [stderr] 12: 0x55e459df95e5 - build_script_gen_mime_types::main::hc73437289fead860 [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: 0x55e459de45b0 - std::rt::lang_start::{{closure}}::ha135e1071bf197cd [INFO] [stderr] at /rustc/452087b4bf18cece2d52d7cd8c9147195e5404bf/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x55e459e31513 - std::rt::lang_start_internal::{{closure}}::hbf4603a1e6e1424d [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x55e459e31513 - std::panicking::try::do_call::h7642e0de797eeae0 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x55e459e3360a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 17: 0x55e459e31fcd - std::panicking::try::h17f145530f8b5a3f [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x55e459e31fcd - std::panic::catch_unwind::hcee1b9b07ea0f9dc [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 19: 0x55e459e31fcd - std::rt::lang_start_internal::h82d44298f58b2cfd [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x55e459de4589 - std::rt::lang_start::h9063ce0122a5f7fc [INFO] [stderr] at /rustc/452087b4bf18cece2d52d7cd8c9147195e5404bf/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x55e459dfab6a - main [INFO] [stderr] 22: 0x7f1ec30a62e1 - __libc_start_main [INFO] [stderr] 23: 0x55e459dcffba - _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" "4af17974d7a2d4326f0f925d488af04c1e09e3904241d389b88726144ad82851"` [INFO] running `"docker" "rm" "-f" "4af17974d7a2d4326f0f925d488af04c1e09e3904241d389b88726144ad82851"` [INFO] [stdout] 4af17974d7a2d4326f0f925d488af04c1e09e3904241d389b88726144ad82851