[INFO] updating cached repository https://github.com/abhijat/reddit-post-fetcher [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] 421546a591eb858bf3f5816c0923559146ce6d8a [INFO] checking abhijat/reddit-post-fetcher against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabhijat%2Freddit-post-fetcher" "work/builds/worker-4/source"` [INFO] [stderr] Cloning into 'work/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/abhijat/reddit-post-fetcher on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt [INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/abhijat/reddit-post-fetcher [INFO] finished tweaking git repo https://github.com/abhijat/reddit-post-fetcher [INFO] tweaked toml for git repo https://github.com/abhijat/reddit-post-fetcher written to work/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/abhijat/reddit-post-fetcher already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/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" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] bfa8b3431e4c8347dea46829a614651884ab204b72d97ffc7dfe662f5b3f88b2 [INFO] running `"docker" "start" "-a" "bfa8b3431e4c8347dea46829a614651884ab204b72d97ffc7dfe662f5b3f88b2"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking hyper v0.11.6 [INFO] [stderr] Compiling mime_guess v2.0.0-alpha.2 [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/rustwide/target/debug/build/mime_guess-a3a76f287b8ef500/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: 0x55c9fa86a084 - backtrace::backtrace::libunwind::trace::h780d9312b947e32f [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55c9fa86a084 - backtrace::backtrace::trace_unsynchronized::h50fdb9faa9a37c56 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55c9fa86a084 - std::sys_common::backtrace::_print_fmt::h5fd3d374bdc4a419 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:77 [INFO] [stderr] 3: 0x55c9fa86a084 - ::fmt::hea77cdef8cfcc21d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:61 [INFO] [stderr] 4: 0x55c9fa8835ec - core::fmt::write::h4af900d733d7a583 [INFO] [stderr] at src/libcore/fmt/mod.rs:1030 [INFO] [stderr] 5: 0x55c9fa868897 - std::io::Write::write_fmt::h7ad411185b661d1b [INFO] [stderr] at src/libstd/io/mod.rs:1412 [INFO] [stderr] 6: 0x55c9fa86c405 - std::sys_common::backtrace::_print::h7743f537860b7fc2 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:65 [INFO] [stderr] 7: 0x55c9fa86c405 - std::sys_common::backtrace::print::h539b95bb1c3082e1 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:50 [INFO] [stderr] 8: 0x55c9fa86c405 - std::panicking::default_hook::{{closure}}::hc6479c8b41ede440 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 9: 0x55c9fa86c0f6 - std::panicking::default_hook::hd581ebc9f02a25e1 [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 10: 0x55c9fa86ca55 - std::panicking::rust_panic_with_hook::h3ef8c012e2c61ebc [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 11: 0x55c9fa86c5f2 - std::panicking::continue_panic_fmt::he01939da6a6344bb [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 12: 0x55c9fa86c4e6 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 13: 0x55c9fa880fba - core::panicking::panic_fmt::h1903c7d3685c01f5 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 14: 0x55c9fa8810b7 - core::result::unwrap_failed::h4bf711114442af64 [INFO] [stderr] at src/libcore/result.rs:1165 [INFO] [stderr] 15: 0x55c9fa8324e0 - core::result::Result::unwrap::hd7a547db8565c504 [INFO] [stderr] at /rustc/e689e5eaefe96e6dc3ed5bb629c521b7d207aff7/src/libcore/result.rs:933 [INFO] [stderr] 16: 0x55c9fa8340b5 - build_script_gen_mime_types::main::h305a9915b42f2e01 [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-2.0.0-alpha.2/src/gen_mime_types.rs:22 [INFO] [stderr] 17: 0x55c9fa845480 - std::rt::lang_start::{{closure}}::he55c747fb3b7f646 [INFO] [stderr] at /rustc/e689e5eaefe96e6dc3ed5bb629c521b7d207aff7/src/libstd/rt.rs:64 [INFO] [stderr] 18: 0x55c9fa86c4d3 - std::rt::lang_start_internal::{{closure}}::h89bcd519c19d1c00 [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 19: 0x55c9fa86c4d3 - std::panicking::try::do_call::h9c0ecf24353b2f6f [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 20: 0x55c9fa86e3ea - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 21: 0x55c9fa86cf4d - std::panicking::try::h2cce617c236f51a9 [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 22: 0x55c9fa86cf4d - std::panic::catch_unwind::heee61165154957e1 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 23: 0x55c9fa86cf4d - std::rt::lang_start_internal::h84ae79bb2f097b77 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 24: 0x55c9fa845459 - std::rt::lang_start::hc23f229a02e956c6 [INFO] [stderr] at /rustc/e689e5eaefe96e6dc3ed5bb629c521b7d207aff7/src/libstd/rt.rs:64 [INFO] [stderr] 25: 0x55c9fa83563a - main [INFO] [stderr] 26: 0x7f9c9f8662e1 - __libc_start_main [INFO] [stderr] 27: 0x55c9fa80a83a - _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" "bfa8b3431e4c8347dea46829a614651884ab204b72d97ffc7dfe662f5b3f88b2"` [INFO] running `"docker" "rm" "-f" "bfa8b3431e4c8347dea46829a614651884ab204b72d97ffc7dfe662f5b3f88b2"` [INFO] [stdout] bfa8b3431e4c8347dea46829a614651884ab204b72d97ffc7dfe662f5b3f88b2