[INFO] updating cached repository ratijas/mess-algos [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/ratijas/mess-algos [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/ratijas/mess-algos" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/ratijas/mess-algos"` [INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/ratijas/mess-algos'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/ratijas/mess-algos" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/ratijas/mess-algos"` [INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/ratijas/mess-algos'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 70fd970c7920973bb5f78ea474a4e419d237c5aa [INFO] sha for GitHub repo ratijas/mess-algos: 70fd970c7920973bb5f78ea474a4e419d237c5aa [INFO] validating manifest of ratijas/mess-algos 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 ratijas/mess-algos 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 ratijas/mess-algos [INFO] finished frobbing ratijas/mess-algos [INFO] frobbed toml for ratijas/mess-algos written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/ratijas/mess-algos/Cargo.toml [INFO] started frobbing ratijas/mess-algos [INFO] finished frobbing ratijas/mess-algos [INFO] frobbed toml for ratijas/mess-algos written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/ratijas/mess-algos/Cargo.toml [INFO] crate ratijas/mess-algos 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 ratijas/mess-algos against try#18481b65f318e0b4b20c0fc61340054701719d6c for pr-62507 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-5/try#18481b65f318e0b4b20c0fc61340054701719d6c:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/ratijas/mess-algos:/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" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] ca88bffb965d1ce772fe2dfa42fbbdb558a52306509e04306e27cd9cf0c1f4ff [INFO] running `"docker" "start" "-a" "ca88bffb965d1ce772fe2dfa42fbbdb558a52306509e04306e27cd9cf0c1f4ff"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling openssl v0.9.20 [INFO] [stderr] Compiling crc-core v0.1.0 [INFO] [stderr] Checking build_const v0.2.0 [INFO] [stderr] Checking base64 v0.7.0 [INFO] [stderr] Checking uuid v0.5.1 [INFO] [stderr] Checking url v1.6.0 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Compiling crc v1.5.0 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Compiling mime_guess v2.0.0-alpha.2 [INFO] [stderr] Checking libflate v0.1.12 [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] 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-0cc6246a264504d1/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: 0x55e4b668ff3b - backtrace::backtrace::libunwind::trace::hbfb69e72f505529b [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55e4b668ff3b - backtrace::backtrace::trace_unsynchronized::hac9ea77fa06b91bd [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55e4b668ff3b - std::sys_common::backtrace::_print::hf6f722cabcf8c26d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55e4b668ff3b - std::sys_common::backtrace::print::h9cca5983945bdb52 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55e4b668ff3b - std::panicking::default_hook::{{closure}}::h2fab7259edc3a80d [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x55e4b668fc17 - std::panicking::default_hook::ha99acf6d9268d46d [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x55e4b6690600 - std::panicking::rust_panic_with_hook::hddab2c65ce92e648 [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x55e4b6690182 - std::panicking::continue_panic_fmt::hfaaf28183fee9f60 [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x55e4b6690066 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x55e4b66a4d6d - core::panicking::panic_fmt::hc776b72619f795d7 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x55e4b6682eb8 - core::result::unwrap_failed::h6fe9ffe213fdb3a5 [INFO] [stderr] at /rustc/18481b65f318e0b4b20c0fc61340054701719d6c/src/libcore/macros.rs:18 [INFO] [stderr] 11: 0x55e4b665098c - core::result::Result::unwrap::ha8dcad9327c10ac9 [INFO] [stderr] at /rustc/18481b65f318e0b4b20c0fc61340054701719d6c/src/libcore/result.rs:852 [INFO] [stderr] 12: 0x55e4b6653aa5 - build_script_gen_mime_types::main::h20d5bf343307972d [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: 0x55e4b667a450 - std::rt::lang_start::{{closure}}::he3e29fc9599b69fc [INFO] [stderr] at /rustc/18481b65f318e0b4b20c0fc61340054701719d6c/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x55e4b6690053 - std::rt::lang_start_internal::{{closure}}::hbec6d1ff7b00d029 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x55e4b6690053 - std::panicking::try::do_call::h83e51489f66cd002 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x55e4b6691f9a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 17: 0x55e4b6690b0d - std::panicking::try::hb1deae6a8854c8be [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x55e4b6690b0d - std::panic::catch_unwind::hff09c33b8b66b7a2 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 19: 0x55e4b6690b0d - std::rt::lang_start_internal::h01b3f7988e3fe75d [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x55e4b667a429 - std::rt::lang_start::h9580d84b8e0a4a30 [INFO] [stderr] at /rustc/18481b65f318e0b4b20c0fc61340054701719d6c/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x55e4b66550da - main [INFO] [stderr] 22: 0x7f098a2cd2e1 - __libc_start_main [INFO] [stderr] 23: 0x55e4b662f4ca - _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" "ca88bffb965d1ce772fe2dfa42fbbdb558a52306509e04306e27cd9cf0c1f4ff"` [INFO] running `"docker" "rm" "-f" "ca88bffb965d1ce772fe2dfa42fbbdb558a52306509e04306e27cd9cf0c1f4ff"` [INFO] [stdout] ca88bffb965d1ce772fe2dfa42fbbdb558a52306509e04306e27cd9cf0c1f4ff