[INFO] updating cached repository https://github.com/JScearcy/Rust-Koans [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] cb4bceeb057657f833916c019f96605c7170382c [INFO] checking JScearcy/Rust-Koans against try#8810c24b0958114d8dbb32d878444e8956fce80f for pr-66063 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJScearcy%2FRust-Koans" "/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/JScearcy/Rust-Koans on toolchain 8810c24b0958114d8dbb32d878444e8956fce80f [INFO] running `"/workspace/cargo-home/bin/cargo" "+8810c24b0958114d8dbb32d878444e8956fce80f" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/JScearcy/Rust-Koans [INFO] finished tweaking git repo https://github.com/JScearcy/Rust-Koans [INFO] tweaked toml for git repo https://github.com/JScearcy/Rust-Koans written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/JScearcy/Rust-Koans already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+8810c24b0958114d8dbb32d878444e8956fce80f" "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=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" "+8810c24b0958114d8dbb32d878444e8956fce80f" "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] 01ebddf53ba5578c3f11643d1e354c08fba2c9581edadc105a574cf2d1783156 [INFO] running `"docker" "start" "-a" "01ebddf53ba5578c3f11643d1e354c08fba2c9581edadc105a574cf2d1783156"` [INFO] [stderr] Compiling koans v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] error: failed to run custom build command for `koans v0.2.0 (/opt/rustwide/workdir)` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/koans-5fbca89364da36e3/build-script-build` (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: 0x560529330ca4 - backtrace::backtrace::libunwind::trace::h34341dd61ff7602e [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x560529330ca4 - backtrace::backtrace::trace_unsynchronized::h10bcbf5508d231b0 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x560529330ca4 - std::sys_common::backtrace::_print_fmt::hb87a8922e63799ad [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:77 [INFO] [stderr] 3: 0x560529330ca4 - ::fmt::hff604fd73142418f [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:61 [INFO] [stderr] 4: 0x560529349a9c - core::fmt::write::hcd468b4bebc0a25c [INFO] [stderr] at src/libcore/fmt/mod.rs:1028 [INFO] [stderr] 5: 0x56052932f547 - std::io::Write::write_fmt::hd4ef0439a8ce5162 [INFO] [stderr] at src/libstd/io/mod.rs:1412 [INFO] [stderr] 6: 0x560529332fce - std::sys_common::backtrace::_print::h41544d836ebb2971 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:65 [INFO] [stderr] 7: 0x560529332fce - std::sys_common::backtrace::print::hed6b8b83658ed2cc [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:50 [INFO] [stderr] 8: 0x560529332fce - std::panicking::default_hook::{{closure}}::h89801ee130ad0fd8 [INFO] [stderr] at src/libstd/panicking.rs:188 [INFO] [stderr] 9: 0x560529332cc1 - std::panicking::default_hook::hb1f703873593e774 [INFO] [stderr] at src/libstd/panicking.rs:205 [INFO] [stderr] 10: 0x56052933361b - std::panicking::rust_panic_with_hook::h0e3fb4ed0a6252f5 [INFO] [stderr] at src/libstd/panicking.rs:464 [INFO] [stderr] 11: 0x5605293331be - std::panicking::continue_panic_fmt::h2c1e395e4ebf4102 [INFO] [stderr] at src/libstd/panicking.rs:373 [INFO] [stderr] 12: 0x5605293330a6 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:302 [INFO] [stderr] 13: 0x56052934755e - core::panicking::panic_fmt::h05d55983de5d1d2b [INFO] [stderr] at src/libcore/panicking.rs:139 [INFO] [stderr] 14: 0x560529347657 - core::result::unwrap_failed::h6f1dd1a7611ccb0b [INFO] [stderr] at src/libcore/result.rs:1165 [INFO] [stderr] 15: 0x56052932c4b0 - core::result::Result::unwrap::h1c84d4592476c434 [INFO] [stderr] at /rustc/8810c24b0958114d8dbb32d878444e8956fce80f/src/libcore/result.rs:933 [INFO] [stderr] 16: 0x56052932bfe1 - build_script_build::main::hee4478aed36f0921 [INFO] [stderr] at /opt/rustwide/workdir/build.rs:4 [INFO] [stderr] 17: 0x56052932c5b0 - std::rt::lang_start::{{closure}}::ha6ffbd413d0fa5d2 [INFO] [stderr] at /rustc/8810c24b0958114d8dbb32d878444e8956fce80f/src/libstd/rt.rs:61 [INFO] [stderr] 18: 0x560529333093 - std::rt::lang_start_internal::{{closure}}::h98c778231b79d91a [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 19: 0x560529333093 - std::panicking::try::do_call::h7fa5c614dff1056b [INFO] [stderr] at src/libstd/panicking.rs:287 [INFO] [stderr] 20: 0x560529334e6a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:83 [INFO] [stderr] 21: 0x560529333afd - std::panicking::try::h0486c1f3e2aa45d4 [INFO] [stderr] at src/libstd/panicking.rs:265 [INFO] [stderr] 22: 0x560529333afd - std::panic::catch_unwind::he81620b75fa7fc20 [INFO] [stderr] at src/libstd/panic.rs:396 [INFO] [stderr] 23: 0x560529333afd - std::rt::lang_start_internal::hf14c9205eb0a1adf [INFO] [stderr] at src/libstd/rt.rs:47 [INFO] [stderr] 24: 0x56052932c589 - std::rt::lang_start::h2c24937ddb12ba4a [INFO] [stderr] at /rustc/8810c24b0958114d8dbb32d878444e8956fce80f/src/libstd/rt.rs:61 [INFO] [stderr] 25: 0x56052932c02a - main [INFO] [stderr] 26: 0x7fc3f0665b97 - __libc_start_main [INFO] [stderr] 27: 0x56052932be9a - _start [INFO] [stderr] 28: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "01ebddf53ba5578c3f11643d1e354c08fba2c9581edadc105a574cf2d1783156"` [INFO] running `"docker" "rm" "-f" "01ebddf53ba5578c3f11643d1e354c08fba2c9581edadc105a574cf2d1783156"` [INFO] [stdout] 01ebddf53ba5578c3f11643d1e354c08fba2c9581edadc105a574cf2d1783156