[INFO] updating cached repository https://github.com/bitcartel/rust-koans-solutions [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] fa1cc79b191627ba13abd5c639ffff97f6c9e08a [INFO] checking bitcartel/rust-koans-solutions against master#bd0bacc694d7d8175804bb6f690cb846bfa4a9ee for pr-71665 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitcartel%2Frust-koans-solutions" "/workspace/builds/worker-5/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/bitcartel/rust-koans-solutions on toolchain bd0bacc694d7d8175804bb6f690cb846bfa4a9ee [INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/bitcartel/rust-koans-solutions [INFO] finished tweaking git repo https://github.com/bitcartel/rust-koans-solutions [INFO] tweaked toml for git repo https://github.com/bitcartel/rust-koans-solutions written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/bitcartel/rust-koans-solutions already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=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" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 1f64702de7c4345ccfd23ca64d6d4eb0ff655b77d55e3444f0dd14cc1635b2a5 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "1f64702de7c4345ccfd23ca64d6d4eb0ff655b77d55e3444f0dd14cc1635b2a5"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling koans v0.2.2 (/opt/rustwide/workdir) [INFO] [stderr] error: failed to run custom build command for `koans v0.2.2 (/opt/rustwide/workdir)` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/koans-325cd3d32086c298/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'Read-only file system (os error 30)', build.rs:13:22 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x557695b40574 - backtrace::backtrace::libunwind::trace::hfcd33194db0151d4 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stderr] 1: 0x557695b40574 - backtrace::backtrace::trace_unsynchronized::hfd1904bbbd5335b5 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x557695b40574 - std::sys_common::backtrace::_print_fmt::h8476c57b177b254e [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x557695b40574 - ::fmt::h73acbc5f6d4b1044 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x557695b5de7c - core::fmt::write::hdf236390fbd68d3d [INFO] [stderr] at src/libcore/fmt/mod.rs:1069 [INFO] [stderr] 5: 0x557695b3ed73 - std::io::Write::write_fmt::h5722fa40bb2afafd [INFO] [stderr] at src/libstd/io/mod.rs:1532 [INFO] [stderr] 6: 0x557695b42b15 - std::sys_common::backtrace::_print::ha468e873aada7c78 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x557695b42b15 - std::sys_common::backtrace::print::h149365a2f029de62 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x557695b42b15 - std::panicking::default_hook::{{closure}}::hb4a33f9e05934a52 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x557695b42852 - std::panicking::default_hook::hc4535d7b0c743abd [INFO] [stderr] at src/libstd/panicking.rs:218 [INFO] [stderr] 10: 0x557695b43122 - std::panicking::rust_panic_with_hook::haa34a96a6dbd5a2e [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 11: 0x557695b42d0b - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:385 [INFO] [stderr] 12: 0x557695b42c7b - std::panicking::begin_panic_fmt::h4623165abc0f2e64 [INFO] [stderr] at src/libstd/panicking.rs:339 [INFO] [stderr] 13: 0x557695b38026 - build_script_build::main::h170e5e70744268a2 [INFO] [stderr] at /opt/rustwide/workdir/build.rs:13 [INFO] [stderr] 14: 0x557695b3826b - std::rt::lang_start::{{closure}}::hac8b79b7d34c5802 [INFO] [stderr] at /rustc/bd0bacc694d7d8175804bb6f690cb846bfa4a9ee/src/libstd/rt.rs:67 [INFO] [stderr] 15: 0x557695b43568 - std::rt::lang_start_internal::{{closure}}::h8ee41efd8ae7ff76 [INFO] [stderr] at src/libstd/rt.rs:52 [INFO] [stderr] 16: 0x557695b43568 - std::panicking::try::do_call::h0a4c4514ee6ebbfc [INFO] [stderr] at src/libstd/panicking.rs:297 [INFO] [stderr] 17: 0x557695b43568 - std::panicking::try::h7c2f3858e42d7516 [INFO] [stderr] at src/libstd/panicking.rs:274 [INFO] [stderr] 18: 0x557695b43568 - std::panic::catch_unwind::h76c4030fa5655c1e [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 19: 0x557695b43568 - std::rt::lang_start_internal::h1c1398259f72ace6 [INFO] [stderr] at src/libstd/rt.rs:51 [INFO] [stderr] 20: 0x557695b38247 - std::rt::lang_start::h60734832e2091b8d [INFO] [stderr] at /rustc/bd0bacc694d7d8175804bb6f690cb846bfa4a9ee/src/libstd/rt.rs:67 [INFO] [stderr] 21: 0x557695b380fa - main [INFO] [stderr] 22: 0x7f7c311e30b3 - __libc_start_main [INFO] [stderr] 23: 0x557695b3517e - _start [INFO] [stderr] 24: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "1f64702de7c4345ccfd23ca64d6d4eb0ff655b77d55e3444f0dd14cc1635b2a5"` [INFO] running `"docker" "rm" "-f" "1f64702de7c4345ccfd23ca64d6d4eb0ff655b77d55e3444f0dd14cc1635b2a5"` [INFO] [stdout] 1f64702de7c4345ccfd23ca64d6d4eb0ff655b77d55e3444f0dd14cc1635b2a5