[INFO] updating cached repository https://github.com/4superu/rust_iron [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] 382993ea0a05f7551d0581fab56d3b9b5e073938 [INFO] checking 4superu/rust_iron against beta-2019-10-27 for pr-65897 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4superu%2Frust_iron" "/workspace/builds/worker-4/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/4superu/rust_iron on toolchain beta-2019-10-27 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/4superu/rust_iron [INFO] finished tweaking git repo https://github.com/4superu/rust_iron [INFO] tweaked toml for git repo https://github.com/4superu/rust_iron written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/4superu/rust_iron already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-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" "+beta-2019-10-27" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 99c1c805725c5d86c197ed062c3860bd49baece42f119a8adbcaddc9f2dc6b2d [INFO] running `"docker" "start" "-a" "99c1c805725c5d86c197ed062c3860bd49baece42f119a8adbcaddc9f2dc6b2d"` [INFO] [stderr] Checking serde v1.0.11 [INFO] [stderr] Checking regex-syntax v0.4.1 [INFO] [stderr] Checking buf_redux v0.3.0 [INFO] [stderr] Checking memchr v1.0.1 [INFO] [stderr] Checking num-complex v0.1.40 [INFO] [stderr] Compiling rand v0.3.16 [INFO] [stderr] Compiling libsqlite3-sys v0.8.1 [INFO] [stderr] Checking tempdir v0.3.5 [INFO] [stderr] Checking num-bigint v0.1.40 [INFO] [stderr] Checking thread_local v0.3.4 [INFO] [stderr] Checking aho-corasick v0.6.3 [INFO] [stderr] Checking phf v0.7.21 [INFO] [stderr] Checking iron v0.5.1 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Checking persistent v0.3.0 [INFO] [stderr] Checking router v0.5.1 [INFO] [stderr] Checking regex v0.2.2 [INFO] [stderr] Compiling mime_guess v1.8.2 [INFO] [stderr] Checking num-rational v0.1.39 [INFO] [stderr] Checking bodyparser v0.5.0 [INFO] [stderr] Checking num v0.1.40 [INFO] [stderr] Checking urlencoded v0.5.0 [INFO] [stderr] error: failed to run custom build command for `mime_guess v1.8.2` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/mime_guess-ad5acc00f3b3487c/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: 0x562413d58da4 - backtrace::backtrace::libunwind::trace::h14dfaa7b4b7da907 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x562413d58da4 - backtrace::backtrace::trace_unsynchronized::hdb0fcb36bd91e7b1 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x562413d58da4 - std::sys_common::backtrace::_print_fmt::hcf7905a3a69ef6ef [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:76 [INFO] [stderr] 3: 0x562413d58da4 - ::fmt::h1d652799221364ff [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:60 [INFO] [stderr] 4: 0x562413d7230c - core::fmt::write::h123c1219d03dc2b2 [INFO] [stderr] at src/libcore/fmt/mod.rs:1030 [INFO] [stderr] 5: 0x562413d575b7 - std::io::Write::write_fmt::h1dd67bc0a861a8a1 [INFO] [stderr] at src/libstd/io/mod.rs:1412 [INFO] [stderr] 6: 0x562413d5b125 - std::sys_common::backtrace::_print::h906393f990c77027 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:64 [INFO] [stderr] 7: 0x562413d5b125 - std::sys_common::backtrace::print::h5760dd4bb9d97089 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x562413d5b125 - std::panicking::default_hook::{{closure}}::h9c8250816dd18f0a [INFO] [stderr] at src/libstd/panicking.rs:196 [INFO] [stderr] 9: 0x562413d5ae16 - std::panicking::default_hook::h3e97ab45acb236f1 [INFO] [stderr] at src/libstd/panicking.rs:210 [INFO] [stderr] 10: 0x562413d5b775 - std::panicking::rust_panic_with_hook::hfd8c6048abefa5d1 [INFO] [stderr] at src/libstd/panicking.rs:473 [INFO] [stderr] 11: 0x562413d5b312 - std::panicking::continue_panic_fmt::h7778586face20ea0 [INFO] [stderr] at src/libstd/panicking.rs:380 [INFO] [stderr] 12: 0x562413d5b206 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:307 [INFO] [stderr] 13: 0x562413d6fcda - core::panicking::panic_fmt::ha8adde723bf3802d [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 14: 0x562413d6fdd7 - core::result::unwrap_failed::hf6a6f53f1c4931c8 [INFO] [stderr] at src/libcore/result.rs:1165 [INFO] [stderr] 15: 0x562413d21370 - core::result::Result::unwrap::h188e941b04a8957f [INFO] [stderr] at /rustc/23f8f652bcea053b70c0030008941f5f8476b5a0/src/libcore/result.rs:933 [INFO] [stderr] 16: 0x562413d23085 - build_script_gen_mime_types::main::h0a6263ee33c9bca8 [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-1.8.2/src/gen_mime_types.rs:22 [INFO] [stderr] 17: 0x562413d33ff0 - std::rt::lang_start::{{closure}}::h7098c4917f315470 [INFO] [stderr] at /rustc/23f8f652bcea053b70c0030008941f5f8476b5a0/src/libstd/rt.rs:64 [INFO] [stderr] 18: 0x562413d5b1f3 - std::rt::lang_start_internal::{{closure}}::hafe4631cc0633d40 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 19: 0x562413d5b1f3 - std::panicking::try::do_call::h717827b47231de13 [INFO] [stderr] at src/libstd/panicking.rs:292 [INFO] [stderr] 20: 0x562413d5d10a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 21: 0x562413d5bc6d - std::panicking::try::h389045103d38e408 [INFO] [stderr] at src/libstd/panicking.rs:271 [INFO] [stderr] 22: 0x562413d5bc6d - std::panic::catch_unwind::hcca2ee11418f038b [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 23: 0x562413d5bc6d - std::rt::lang_start_internal::hc0e13ab06870c4ba [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 24: 0x562413d33fc9 - std::rt::lang_start::h0065fb3cba1123e8 [INFO] [stderr] at /rustc/23f8f652bcea053b70c0030008941f5f8476b5a0/src/libstd/rt.rs:64 [INFO] [stderr] 25: 0x562413d2460a - main [INFO] [stderr] 26: 0x7f418e350b97 - __libc_start_main [INFO] [stderr] 27: 0x562413cf996a - _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" "99c1c805725c5d86c197ed062c3860bd49baece42f119a8adbcaddc9f2dc6b2d"` [INFO] running `"docker" "rm" "-f" "99c1c805725c5d86c197ed062c3860bd49baece42f119a8adbcaddc9f2dc6b2d"` [INFO] [stdout] 99c1c805725c5d86c197ed062c3860bd49baece42f119a8adbcaddc9f2dc6b2d