[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 master#7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3 for pr-71873 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJScearcy%2FRust-Koans" "/workspace/builds/worker-13/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/JScearcy/Rust-Koans on toolchain 7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3 [INFO] running `"/workspace/cargo-home/bin/cargo" "+7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3" "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-13/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" "+7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] cb420b149e7bd826297b35f6285643e0445ef67a572dd4038a45b30373af33e0 [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" "cb420b149e7bd826297b35f6285643e0445ef67a572dd4038a45b30373af33e0"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [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-a6705c3253469995/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" }', build.rs:4:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55640d732064 - 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: 0x55640d732064 - 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: 0x55640d732064 - std::sys_common::backtrace::_print_fmt::h8476c57b177b254e [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x55640d732064 - ::fmt::h73acbc5f6d4b1044 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x55640d74f85c - core::fmt::write::hdf236390fbd68d3d [INFO] [stderr] at src/libcore/fmt/mod.rs:1069 [INFO] [stderr] 5: 0x55640d730863 - std::io::Write::write_fmt::h5722fa40bb2afafd [INFO] [stderr] at src/libstd/io/mod.rs:1537 [INFO] [stderr] 6: 0x55640d734585 - std::sys_common::backtrace::_print::ha468e873aada7c78 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x55640d734585 - std::sys_common::backtrace::print::h149365a2f029de62 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x55640d734585 - std::panicking::default_hook::{{closure}}::hb4a33f9e05934a52 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x55640d7342c2 - std::panicking::default_hook::hc4535d7b0c743abd [INFO] [stderr] at src/libstd/panicking.rs:218 [INFO] [stderr] 10: 0x55640d734b78 - std::panicking::rust_panic_with_hook::haa34a96a6dbd5a2e [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 11: 0x55640d73477b - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:385 [INFO] [stderr] 12: 0x55640d74ec41 - core::panicking::panic_fmt::hd101a87121fa411f [INFO] [stderr] at src/libcore/panicking.rs:89 [INFO] [stderr] 13: 0x55640d74ea63 - core::option::expect_none_failed::h4f0e89faa3179bf7 [INFO] [stderr] at src/libcore/option.rs:1272 [INFO] [stderr] 14: 0x55640d72c32b - core::result::Result::unwrap::h56d288fbe5e26c58 [INFO] [stderr] at /rustc/7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3/src/libcore/result.rs:1005 [INFO] [stderr] 15: 0x55640d72c9cb - build_script_build::main::ha52283e75ebb0edd [INFO] [stderr] at /opt/rustwide/workdir/build.rs:4 [INFO] [stderr] 16: 0x55640d72c8bb - std::rt::lang_start::{{closure}}::hcc515c44dc9d1330 [INFO] [stderr] at /rustc/7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3/src/libstd/rt.rs:67 [INFO] [stderr] 17: 0x55640d734f48 - std::rt::lang_start_internal::{{closure}}::h8ee41efd8ae7ff76 [INFO] [stderr] at src/libstd/rt.rs:52 [INFO] [stderr] 18: 0x55640d734f48 - std::panicking::try::do_call::h0a4c4514ee6ebbfc [INFO] [stderr] at src/libstd/panicking.rs:297 [INFO] [stderr] 19: 0x55640d734f48 - std::panicking::try::h7c2f3858e42d7516 [INFO] [stderr] at src/libstd/panicking.rs:274 [INFO] [stderr] 20: 0x55640d734f48 - std::panic::catch_unwind::h76c4030fa5655c1e [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 21: 0x55640d734f48 - std::rt::lang_start_internal::h1c1398259f72ace6 [INFO] [stderr] at src/libstd/rt.rs:51 [INFO] [stderr] 22: 0x55640d72c897 - std::rt::lang_start::h00a856983b373f0f [INFO] [stderr] at /rustc/7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3/src/libstd/rt.rs:67 [INFO] [stderr] 23: 0x55640d72ca0a - main [INFO] [stderr] 24: 0x7fe3e8b3d0b3 - __libc_start_main [INFO] [stderr] 25: 0x55640d72c17e - _start [INFO] [stderr] 26: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "cb420b149e7bd826297b35f6285643e0445ef67a572dd4038a45b30373af33e0"` [INFO] running `"docker" "rm" "-f" "cb420b149e7bd826297b35f6285643e0445ef67a572dd4038a45b30373af33e0"` [INFO] [stdout] cb420b149e7bd826297b35f6285643e0445ef67a572dd4038a45b30373af33e0