[INFO] updating cached repository https://github.com/forestbelton/plank [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 02b579d64dbfe520cf9c2affb06f0ce04a93ff62 [INFO] checking forestbelton/plank against master#4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb for pr-64672 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fforestbelton%2Fplank" "work/builds/worker-1/source"` [INFO] [stderr] Cloning into 'work/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/forestbelton/plank on toolchain 4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb [INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/forestbelton/plank [INFO] finished tweaking git repo https://github.com/forestbelton/plank [INFO] tweaked toml for git repo https://github.com/forestbelton/plank written to work/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/forestbelton/plank already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 680b5ee996f20aa9506dcbde846f8df946f9fa4596ca0017dcb988154de5c9ff [INFO] running `"docker" "start" "-a" "680b5ee996f20aa9506dcbde846f8df946f9fa4596ca0017dcb988154de5c9ff"` [INFO] [stderr] Compiling libc v0.2.26 [INFO] [stderr] Compiling rustc-serialize v0.3.24 [INFO] [stderr] Compiling gcc v0.3.51 [INFO] [stderr] Checking percent-encoding v1.0.0 [INFO] [stderr] Compiling lazy_static v0.2.8 [INFO] [stderr] Compiling rustc-demangle v0.1.4 [INFO] [stderr] Compiling serde v1.0.10 [INFO] [stderr] Checking buf_redux v0.3.0 [INFO] [stderr] Checking sequence_trie v0.2.1 [INFO] [stderr] Checking route-recognizer v0.1.12 [INFO] [stderr] Compiling num-integer v0.1.35 [INFO] [stderr] Checking fern v0.4.0 [INFO] [stderr] Checking base64 v0.5.2 [INFO] [stderr] Checking num-complex v0.1.39 [INFO] [stderr] Compiling libsqlite3-sys v0.8.1 [INFO] [stderr] Checking serde_json v0.8.6 [INFO] [stderr] Checking scheduled-thread-pool v0.1.0 [INFO] [stderr] Compiling rand v0.3.15 [INFO] [stderr] Compiling memchr v1.0.1 [INFO] [stderr] Compiling time v0.1.38 [INFO] [stderr] Checking num_cpus v1.6.2 [INFO] [stderr] Checking memchr v0.1.11 [INFO] [stderr] Compiling num-iter v0.1.34 [INFO] [stderr] Compiling thread_local v0.3.4 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Checking r2d2 v0.7.3 [INFO] [stderr] Checking url v1.5.1 [INFO] [stderr] Compiling aho-corasick v0.6.3 [INFO] [stderr] Compiling backtrace-sys v0.1.11 [INFO] [stderr] Compiling num-bigint v0.1.40 [INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.5.1/src/form_urlencoded.rs:251:40 [INFO] [stderr] | [INFO] [stderr] 249 | impl<'a> Target for ::UrlQuery<'a> { [INFO] [stderr] | -- lifetime `'a` defined here [INFO] [stderr] 250 | fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization } [INFO] [stderr] 251 | 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 tempdir v0.3.5 [INFO] [stderr] Checking uuid v0.5.1 [INFO] [stderr] Compiling regex v0.2.2 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Checking hyper v0.10.12 [INFO] [stderr] Compiling num-rational v0.1.39 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Compiling num v0.1.40 [INFO] [stderr] Compiling serde_derive_internals v0.15.1 [INFO] [stderr] Checking envy v0.3.1 [INFO] [stderr] Checking serde_json v1.0.2 [INFO] [stderr] Compiling mime_guess v1.8.1 [INFO] [stderr] Compiling chrono v0.4.0 [INFO] [stderr] Checking iron v0.5.1 [INFO] [stderr] Checking persistent v0.3.0 [INFO] [stderr] Checking mount v0.3.0 [INFO] [stderr] Checking router v0.5.1 [INFO] [stderr] error: failed to run custom build command for `mime_guess v1.8.1` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/mime_guess-32f3fe70d4727c10/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:1165:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55d386ed9984 - backtrace::backtrace::libunwind::trace::h837858cfeddf7a26 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55d386ed9984 - backtrace::backtrace::trace_unsynchronized::hf450b231b66758d5 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55d386ed9984 - std::sys_common::backtrace::_print_fmt::h368e3c833d23dd1d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:76 [INFO] [stderr] 3: 0x55d386ed9984 - ::fmt::h99a560994a9a8770 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:60 [INFO] [stderr] 4: 0x55d386ef2eec - core::fmt::write::h331a8aee5b7f3512 [INFO] [stderr] at src/libcore/fmt/mod.rs:1030 [INFO] [stderr] 5: 0x55d386ed8197 - std::io::Write::write_fmt::hf05660e3e7df1eca [INFO] [stderr] at src/libstd/io/mod.rs:1412 [INFO] [stderr] 6: 0x55d386edbd05 - std::sys_common::backtrace::_print::h2a131efc4c0ac3fa [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:64 [INFO] [stderr] 7: 0x55d386edbd05 - std::sys_common::backtrace::print::h983d88dd719c12ff [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x55d386edbd05 - std::panicking::default_hook::{{closure}}::h663d5da304a5132f [INFO] [stderr] at src/libstd/panicking.rs:196 [INFO] [stderr] 9: 0x55d386edb9f6 - std::panicking::default_hook::hf37841c3986e6801 [INFO] [stderr] at src/libstd/panicking.rs:210 [INFO] [stderr] 10: 0x55d386edc355 - std::panicking::rust_panic_with_hook::hb2227d83b88686af [INFO] [stderr] at src/libstd/panicking.rs:473 [INFO] [stderr] 11: 0x55d386edbef2 - std::panicking::continue_panic_fmt::h8dcb675c0adec47c [INFO] [stderr] at src/libstd/panicking.rs:380 [INFO] [stderr] 12: 0x55d386edbde6 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:307 [INFO] [stderr] 13: 0x55d386ef08ba - core::panicking::panic_fmt::h34237ab75d721bef [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 14: 0x55d386ef09b7 - core::result::unwrap_failed::h73569ff13c30ae81 [INFO] [stderr] at src/libcore/result.rs:1165 [INFO] [stderr] 15: 0x55d386ea2020 - core::result::Result::unwrap::hb1511b0dcbe4c303 [INFO] [stderr] at /rustc/4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb/src/libcore/result.rs:933 [INFO] [stderr] 16: 0x55d386ea3c65 - build_script_gen_mime_types::main::h1ea0916dd59089f3 [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-1.8.1/src/gen_mime_types.rs:22 [INFO] [stderr] 17: 0x55d386eb4bd0 - std::rt::lang_start::{{closure}}::h0a01cb367faca0ed [INFO] [stderr] at /rustc/4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb/src/libstd/rt.rs:64 [INFO] [stderr] 18: 0x55d386edbdd3 - std::rt::lang_start_internal::{{closure}}::hcbc0d39047dfb53e [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 19: 0x55d386edbdd3 - std::panicking::try::do_call::h8b5ef32d822a8d8f [INFO] [stderr] at src/libstd/panicking.rs:292 [INFO] [stderr] 20: 0x55d386eddcea - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 21: 0x55d386edc84d - std::panicking::try::h9b6fb4e6a40ce0cb [INFO] [stderr] at src/libstd/panicking.rs:271 [INFO] [stderr] 22: 0x55d386edc84d - std::panic::catch_unwind::h2fbf9b8ead8e504a [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 23: 0x55d386edc84d - std::rt::lang_start_internal::hb6581c1f21bf501d [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 24: 0x55d386eb4ba9 - std::rt::lang_start::hd900b4a1e99b0f0a [INFO] [stderr] at /rustc/4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb/src/libstd/rt.rs:64 [INFO] [stderr] 25: 0x55d386ea51ea - main [INFO] [stderr] 26: 0x7f3ca5f83b97 - __libc_start_main [INFO] [stderr] 27: 0x55d386e7a54a - _start [INFO] [stderr] 28: 0x0 - [INFO] [stderr] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "680b5ee996f20aa9506dcbde846f8df946f9fa4596ca0017dcb988154de5c9ff"` [INFO] running `"docker" "rm" "-f" "680b5ee996f20aa9506dcbde846f8df946f9fa4596ca0017dcb988154de5c9ff"` [INFO] [stdout] 680b5ee996f20aa9506dcbde846f8df946f9fa4596ca0017dcb988154de5c9ff