[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 try#c846f8a7dc7af09647f397f047db9cc81acb60bd for pr-69129 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitcartel%2Frust-koans-solutions" "/workspace/builds/worker-10/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/bitcartel/rust-koans-solutions on toolchain c846f8a7dc7af09647f397f047db9cc81acb60bd [INFO] running `"/workspace/cargo-home/bin/cargo" "+c846f8a7dc7af09647f397f047db9cc81acb60bd" "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-10/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" "+c846f8a7dc7af09647f397f047db9cc81acb60bd" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+c846f8a7dc7af09647f397f047db9cc81acb60bd" "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] e4efd6fd2bee342580be45fdf922e8da1dd43b2618e1d82a3ce1f8199bbbeb41 [INFO] running `"docker" "start" "-a" "e4efd6fd2bee342580be45fdf922e8da1dd43b2618e1d82a3ce1f8199bbbeb41"` [INFO] [stderr] Blocking waiting for file lock on package cache [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-b09867a15d916e3a/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: 0x555ac2f9b884 - backtrace::backtrace::libunwind::trace::h8eb2a132b49bda58 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/libunwind.rs:86 [INFO] [stderr] 1: 0x555ac2f9b884 - backtrace::backtrace::trace_unsynchronized::h3845175583436f98 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x555ac2f9b884 - std::sys_common::backtrace::_print_fmt::h618f0c1ddacdbc4c [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x555ac2f9b884 - ::fmt::h48fa95c1498ac15f [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x555ac2fb48dc - core::fmt::write::h4cf3e4309e70d523 [INFO] [stderr] at src/libcore/fmt/mod.rs:1052 [INFO] [stderr] 5: 0x555ac2f99ee7 - std::io::Write::write_fmt::hfb58fca80a7ab04f [INFO] [stderr] at src/libstd/io/mod.rs:1428 [INFO] [stderr] 6: 0x555ac2f9dd35 - std::sys_common::backtrace::_print::he952678a4a17fbb3 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x555ac2f9dd35 - std::sys_common::backtrace::print::h2c1246bd16b522cf [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x555ac2f9dd35 - std::panicking::default_hook::{{closure}}::h6910ef59d991b397 [INFO] [stderr] at src/libstd/panicking.rs:204 [INFO] [stderr] 9: 0x555ac2f9da76 - std::panicking::default_hook::h66112fa76f17267a [INFO] [stderr] at src/libstd/panicking.rs:224 [INFO] [stderr] 10: 0x555ac2f9e2f2 - std::panicking::rust_panic_with_hook::h61275d516bdee914 [INFO] [stderr] at src/libstd/panicking.rs:470 [INFO] [stderr] 11: 0x555ac2f9dedb - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:378 [INFO] [stderr] 12: 0x555ac2f9de4b - std::panicking::begin_panic_fmt::he90e9b0e7ed4edb0 [INFO] [stderr] at src/libstd/panicking.rs:332 [INFO] [stderr] 13: 0x555ac2f93bf5 - build_script_build::main::hae7af22a91062fd0 [INFO] [stderr] at /opt/rustwide/workdir/build.rs:13 [INFO] [stderr] 14: 0x555ac2f9664b - std::rt::lang_start::{{closure}}::hc0b447f66917fa89 [INFO] [stderr] at /rustc/c846f8a7dc7af09647f397f047db9cc81acb60bd/src/libstd/rt.rs:67 [INFO] [stderr] 15: 0x555ac2f9de03 - std::rt::lang_start_internal::{{closure}}::hd747c35dfe5d32a8 [INFO] [stderr] at src/libstd/rt.rs:52 [INFO] [stderr] 16: 0x555ac2f9de03 - std::panicking::try::do_call::hdf9f96c3768e461d [INFO] [stderr] at src/libstd/panicking.rs:303 [INFO] [stderr] 17: 0x555ac2f9fcc7 - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:86 [INFO] [stderr] 18: 0x555ac2f9e799 - std::panicking::try::hb6f51bfffd0d2662 [INFO] [stderr] at src/libstd/panicking.rs:281 [INFO] [stderr] 19: 0x555ac2f9e799 - std::panic::catch_unwind::h2e9bec71cfad862e [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 20: 0x555ac2f9e799 - std::rt::lang_start_internal::h551154d8adf9cf3c [INFO] [stderr] at src/libstd/rt.rs:51 [INFO] [stderr] 21: 0x555ac2f96627 - std::rt::lang_start::h3a45470e0c066896 [INFO] [stderr] at /rustc/c846f8a7dc7af09647f397f047db9cc81acb60bd/src/libstd/rt.rs:67 [INFO] [stderr] 22: 0x555ac2f93d9a - main [INFO] [stderr] 23: 0x7f4da8963b97 - __libc_start_main [INFO] [stderr] 24: 0x555ac2f9138a - _start [INFO] [stderr] 25: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "e4efd6fd2bee342580be45fdf922e8da1dd43b2618e1d82a3ce1f8199bbbeb41"` [INFO] running `"docker" "rm" "-f" "e4efd6fd2bee342580be45fdf922e8da1dd43b2618e1d82a3ce1f8199bbbeb41"` [INFO] [stdout] e4efd6fd2bee342580be45fdf922e8da1dd43b2618e1d82a3ce1f8199bbbeb41