[INFO] cloning repository https://github.com/ftabaro/mutation-viewer [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ftabaro/mutation-viewer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fftabaro%2Fmutation-viewer", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fftabaro%2Fmutation-viewer'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ef1388ebda5c3302ee7d22a2f6eb78127294591c [INFO] checking ftabaro/mutation-viewer against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fftabaro%2Fmutation-viewer" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ftabaro/mutation-viewer on toolchain 195ad4830e11a544391abe296b146450dea8411b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ftabaro/mutation-viewer [INFO] finished tweaking git repo https://github.com/ftabaro/mutation-viewer [INFO] tweaked toml for git repo https://github.com/ftabaro/mutation-viewer written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/ftabaro/mutation-viewer already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 019c96fff5a8260c5e2aad4e33095f7736d616bef8aa11cd59c0e0d07b727c40 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "019c96fff5a8260c5e2aad4e33095f7736d616bef8aa11cd59c0e0d07b727c40", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "019c96fff5a8260c5e2aad4e33095f7736d616bef8aa11cd59c0e0d07b727c40", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "019c96fff5a8260c5e2aad4e33095f7736d616bef8aa11cd59c0e0d07b727c40", kill_on_drop: false }` [INFO] [stdout] 019c96fff5a8260c5e2aad4e33095f7736d616bef8aa11cd59c0e0d07b727c40 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 875db42f617da8aac650223f3a18338dfe810e8cd6260a9877fdc9b435f3eab8 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "875db42f617da8aac650223f3a18338dfe810e8cd6260a9877fdc9b435f3eab8", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking libc v0.2.36 [INFO] [stderr] Compiling version_check v0.1.3 [INFO] [stderr] Checking num-traits v0.2.0 [INFO] [stderr] Checking encoding_index_tests v0.1.4 [INFO] [stderr] Checking cfg-if v0.1.2 [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Checking winapi v0.2.8 [INFO] [stderr] Checking matches v0.1.6 [INFO] [stderr] Compiling gcc v0.3.54 [INFO] [stderr] Checking siphasher v0.2.2 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking safemem v0.2.0 [INFO] [stderr] Checking safemem v0.1.1 [INFO] [stderr] Checking serde v1.0.27 [INFO] [stderr] Checking unicode-normalization v0.1.5 [INFO] [stderr] Checking dtoa v0.4.2 [INFO] [stderr] Checking byteorder v1.2.1 [INFO] [stderr] Checking utf8-ranges v1.0.0 [INFO] [stderr] Checking ascii v0.7.1 [INFO] [stderr] Checking httparse v1.2.4 [INFO] [stderr] Checking itoa v0.3.4 [INFO] [stderr] Checking regex-syntax v0.4.2 [INFO] [stderr] Checking chunked_transfer v0.3.1 [INFO] [stderr] Checking strsim v0.6.0 [INFO] [stderr] Checking sha1 v0.2.0 [INFO] [stderr] Compiling rand v0.4.2 [INFO] [stderr] Compiling miniz-sys v0.1.10 [INFO] [stderr] Checking encoding-index-simpchinese v1.20141219.5 [INFO] [stderr] Checking encoding-index-japanese v1.20141219.5 [INFO] [stderr] Checking encoding-index-korean v1.20141219.5 [INFO] [stderr] Checking encoding-index-tradchinese v1.20141219.5 [INFO] [stderr] Checking encoding-index-singlebyte v1.20141219.5 [INFO] [stderr] Checking log v0.4.1 [INFO] [stderr] Checking unicode-bidi v0.3.4 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] Checking base64 v0.7.0 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking thread_local v0.3.5 [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Checking num-integer v0.1.36 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking memchr v2.0.1 [INFO] [stderr] Checking time v0.1.39 [INFO] [stderr] Checking memchr v0.1.11 [INFO] [stderr] Checking num_cpus v1.8.0 [INFO] [stderr] Checking filetime v0.1.15 [INFO] [stderr] Checking idna v0.1.4 [INFO] [stderr] Compiling rand v0.3.22 [INFO] [stderr] Checking mime v0.2.6 [INFO] [stderr] Checking twoway v0.1.7 [INFO] [stderr] Checking aho-corasick v0.6.4 [INFO] [stderr] Checking encoding v0.2.33 [INFO] [stderr] Checking num-iter v0.1.35 [INFO] [stderr] Checking buf_redux v0.6.1 [INFO] [stderr] Checking threadpool v1.7.1 [INFO] [stderr] Checking remove_dir_all v0.3.0 [INFO] [stderr] Checking term v0.2.14 [INFO] [stderr] Checking num v0.1.41 [INFO] [stderr] Checking chrono v0.2.25 [INFO] [stderr] Checking chrono v0.4.0 [INFO] [stderr] Compiling phf_shared v0.7.21 [INFO] [stderr] Checking regex v0.2.5 [INFO] [stderr] Checking flate2 v0.2.20 [INFO] [stderr] Checking flate2 v1.0.1 [INFO] [stderr] Compiling brotli-sys v0.2.1 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Checking phf v0.7.21 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Compiling mime_guess v1.8.3 [INFO] [stderr] Checking tempdir v0.3.6 [INFO] [stderr] Checking uuid v0.1.18 [INFO] [stderr] Compiling serde_derive_internals v0.19.0 [INFO] [stderr] Checking url v1.6.0 [INFO] [stderr] Checking url v0.2.38 [INFO] [stderr] error: failed to run custom build command for `mime_guess v1.8.3` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/mime_guess-af80c48dddbb48ec/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" }', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-1.8.3/src/gen_mime_types.rs:22:67 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55796c920050 - std::backtrace_rs::backtrace::libunwind::trace::hfe3b1cace85e87d8 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stderr] 1: 0x55796c920050 - std::backtrace_rs::backtrace::trace_unsynchronized::h542330af06479043 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x55796c920050 - std::sys_common::backtrace::_print_fmt::h6b88726367858985 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x55796c920050 - ::fmt::hcd76ce6b485adbea [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x55796c93685f - core::fmt::write::h127419eb46f2ecc9 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/core/src/fmt/mod.rs:1092:17 [INFO] [stderr] 5: 0x55796c91eaf2 - std::io::Write::write_fmt::h0facb64ef2e7f5d8 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/io/mod.rs:1567:15 [INFO] [stderr] 6: 0x55796c921bc5 - std::sys_common::backtrace::_print::h7bf1633ea5421f7b [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x55796c921bc5 - std::sys_common::backtrace::print::h5cc4d09049928ba5 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x55796c921bc5 - std::panicking::default_hook::{{closure}}::h9e84dc005bfc9fc7 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x55796c921673 - std::panicking::default_hook::h123278a03b1f796b [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/panicking.rs:225:9 [INFO] [stderr] 10: 0x55796c9221cd - std::panicking::rust_panic_with_hook::h4040631aa6c7bc27 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/panicking.rs:591:17 [INFO] [stderr] 11: 0x55796c921d67 - std::panicking::begin_panic_handler::{{closure}}::h02a17b22ac092d08 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/panicking.rs:497:13 [INFO] [stderr] 12: 0x55796c92050c - std::sys_common::backtrace::__rust_end_short_backtrace::h6063b024443b5852 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stderr] 13: 0x55796c921cc9 - rust_begin_unwind [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/panicking.rs:493:5 [INFO] [stderr] 14: 0x55796c8c5241 - core::panicking::panic_fmt::h5322a082d19786c3 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/core/src/panicking.rs:92:14 [INFO] [stderr] 15: 0x55796c8c5133 - core::option::expect_none_failed::h354eaa93a51d71b8 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/core/src/option.rs:1329:5 [INFO] [stderr] 16: 0x55796c8e198a - core::result::Result::unwrap::ha8e7740ed2848dfb [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/core/src/result.rs:1037:23 [INFO] [stderr] 17: 0x55796c90031b - build_script_gen_mime_types::main::hf9b1616572078d5c [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-1.8.3/src/gen_mime_types.rs:22:38 [INFO] [stderr] 18: 0x55796c8d887b - core::ops::function::FnOnce::call_once::ha69268c2e77d21a1 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/core/src/ops/function.rs:227:5 [INFO] [stderr] 19: 0x55796c8eec1e - std::sys_common::backtrace::__rust_begin_short_backtrace::h401a25c3fb17f08b [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stderr] 20: 0x55796c8d86c1 - std::rt::lang_start::{{closure}}::h451cc636ab29e0c3 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/rt.rs:66:18 [INFO] [stderr] 21: 0x55796c9225ca - core::ops::function::impls:: for &F>::call_once::h3695a3fbbe44c001 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/core/src/ops/function.rs:259:13 [INFO] [stderr] 22: 0x55796c9225ca - std::panicking::try::do_call::he9f4b5f706c7e58d [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/panicking.rs:379:40 [INFO] [stderr] 23: 0x55796c9225ca - std::panicking::try::h789d448ccf87fe6d [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/panicking.rs:343:19 [INFO] [stderr] 24: 0x55796c9225ca - std::panic::catch_unwind::h7a6b31f16004913a [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/panic.rs:431:14 [INFO] [stderr] 25: 0x55796c9225ca - std::rt::lang_start_internal::h80897b41b254b288 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/rt.rs:51:25 [INFO] [stderr] 26: 0x55796c8d86a0 - std::rt::lang_start::h477786d86e815420 [INFO] [stderr] at /rustc/195ad4830e11a544391abe296b146450dea8411b/library/std/src/rt.rs:65:5 [INFO] [stderr] 27: 0x55796c9019fc - main [INFO] [stderr] 28: 0x7f3b7328b0b3 - __libc_start_main [INFO] [stderr] 29: 0x55796c8c58ae - _start [INFO] [stderr] 30: 0x0 - [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0713]: borrow may still be in use when destructor runs [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.6.0/src/form_urlencoded.rs:261:40 [INFO] [stdout] | [INFO] [stdout] 259 | impl<'a> Target for ::UrlQuery<'a> { [INFO] [stdout] | -- lifetime `'a` defined here [INFO] [stdout] 260 | fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization } [INFO] [stdout] 261 | fn finish(self) -> &'a mut ::Url { self.url } [INFO] [stdout] | ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait [INFO] [stdout] | | [INFO] [stdout] | returning this value requires that `*self.url` is borrowed for `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0713`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "875db42f617da8aac650223f3a18338dfe810e8cd6260a9877fdc9b435f3eab8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "875db42f617da8aac650223f3a18338dfe810e8cd6260a9877fdc9b435f3eab8", kill_on_drop: false }` [INFO] [stdout] 875db42f617da8aac650223f3a18338dfe810e8cd6260a9877fdc9b435f3eab8