[INFO] updating cached repository https://github.com/nanotech/dhall-rs [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] 5408abbbabd066f9ffbe030f9f0205dc56e5161c [INFO] checking nanotech/dhall-rs against master#6250d56355d72264ece721e8d0dc95b16a6824b1 for pr-68350 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnanotech%2Fdhall-rs" "/workspace/builds/worker-4/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nanotech/dhall-rs on toolchain 6250d56355d72264ece721e8d0dc95b16a6824b1 [INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/nanotech/dhall-rs [INFO] finished tweaking git repo https://github.com/nanotech/dhall-rs [INFO] tweaked toml for git repo https://github.com/nanotech/dhall-rs written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/nanotech/dhall-rs already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "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] 8205ae4991e1ef4a267d8ae28d5f1c8dcc6e6a3c01c241af27ba3d1af5b847d4 [INFO] running `"docker" "start" "-a" "8205ae4991e1ef4a267d8ae28d5f1c8dcc6e6a3c01c241af27ba3d1af5b847d4"` [INFO] [stderr] Compiling either v1.1.0 [INFO] [stderr] Compiling fixedbitset v0.1.7 [INFO] [stderr] Compiling bit-vec v0.5.1 [INFO] [stderr] Compiling strsim v0.9.2 [INFO] [stderr] Compiling lalrpop-util v0.17.1 [INFO] [stderr] Checking bytecount v0.5.1 [INFO] [stderr] Compiling block-padding v0.1.4 [INFO] [stderr] Compiling nom v5.0.0 [INFO] [stderr] Checking term-painter v0.2.4 [INFO] [stderr] Compiling dirs v1.0.5 [INFO] [stderr] Compiling ena v0.13.0 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Compiling syn v0.15.39 [INFO] [stderr] Compiling generic-array v0.12.3 [INFO] [stderr] Compiling stackvector v1.0.6 [INFO] [stderr] Compiling lexical-core v0.4.2 [INFO] [stderr] Compiling regex v1.1.7 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling itertools v0.8.0 [INFO] [stderr] Compiling term v0.5.2 [INFO] [stderr] Compiling petgraph v0.4.13 [INFO] [stderr] Compiling bit-set v0.5.1 [INFO] [stderr] Compiling block-buffer v0.7.3 [INFO] [stderr] Compiling digest v0.8.1 [INFO] [stderr] Compiling string_cache_codegen v0.4.2 [INFO] [stderr] Compiling ascii-canvas v2.0.0 [INFO] [stderr] Compiling sha2 v0.8.0 [INFO] [stderr] Compiling string_cache v0.7.3 [INFO] [stderr] Compiling serde_derive v1.0.94 [INFO] [stderr] Compiling serde v1.0.94 [INFO] [stderr] Compiling docopt v1.1.0 [INFO] [stderr] Compiling lalrpop v0.17.1 [INFO] [stderr] Compiling dhall v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] error: failed to run custom build command for `dhall v0.1.0 (/opt/rustwide/workdir)` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/dhall-8bb537e15d011a4e/build-script-build` (exit code: 101) [INFO] [stderr] --- stdout [INFO] [stderr] processing file `./src/grammar.lalrpop` [INFO] [stderr] [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: 0x55b326746c14 - backtrace::backtrace::libunwind::trace::hc26826043b7bf82f [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55b326746c14 - backtrace::backtrace::trace_unsynchronized::hf9fe7343abcf3b6a [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55b326746c14 - std::sys_common::backtrace::_print_fmt::hf5f83f377bc8d868 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:77 [INFO] [stderr] 3: 0x55b326746c14 - ::fmt::hb2a7a6aa1b182a99 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x55b326763c7c - core::fmt::write::hc09f142ab04e56d2 [INFO] [stderr] at src/libcore/fmt/mod.rs:1057 [INFO] [stderr] 5: 0x55b326744217 - std::io::Write::write_fmt::hafa429c292548705 [INFO] [stderr] at src/libstd/io/mod.rs:1426 [INFO] [stderr] 6: 0x55b326748d05 - std::sys_common::backtrace::_print::hcf3fff603fe810fd [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x55b326748d05 - std::sys_common::backtrace::print::h5ea515a32d6700a5 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x55b326748d05 - std::panicking::default_hook::{{closure}}::h324ce5172a1777e2 [INFO] [stderr] at src/libstd/panicking.rs:204 [INFO] [stderr] 9: 0x55b3267489f1 - std::panicking::default_hook::h6593dbc4932c953a [INFO] [stderr] at src/libstd/panicking.rs:224 [INFO] [stderr] 10: 0x55b32674930a - std::panicking::rust_panic_with_hook::h04729d51ab5f86cb [INFO] [stderr] at src/libstd/panicking.rs:472 [INFO] [stderr] 11: 0x55b326748ef0 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:380 [INFO] [stderr] 12: 0x55b3267622f1 - core::panicking::panic_fmt::h13aca3a92bd42a1a [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 13: 0x55b326762113 - core::option::expect_none_failed::h9f079317bf74cb06 [INFO] [stderr] at src/libcore/option.rs:1198 [INFO] [stderr] 14: 0x55b325d3b159 - core::result::Result::unwrap::h1f0931666ab605b0 [INFO] [stderr] at /rustc/6250d56355d72264ece721e8d0dc95b16a6824b1/src/libcore/result.rs:962 [INFO] [stderr] 15: 0x55b325d3b2d4 - build_script_build::main::h1bcd3017ce4d92cd [INFO] [stderr] at /opt/rustwide/workdir/build.rs:4 [INFO] [stderr] 16: 0x55b325d3b200 - std::rt::lang_start::{{closure}}::h39e2da5988737543 [INFO] [stderr] at /rustc/6250d56355d72264ece721e8d0dc95b16a6824b1/src/libstd/rt.rs:67 [INFO] [stderr] 17: 0x55b326748dd3 - std::rt::lang_start_internal::{{closure}}::h5c17144678350141 [INFO] [stderr] at src/libstd/rt.rs:52 [INFO] [stderr] 18: 0x55b326748dd3 - std::panicking::try::do_call::h8eaf10466ef75c80 [INFO] [stderr] at src/libstd/panicking.rs:305 [INFO] [stderr] 19: 0x55b32674bd47 - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:86 [INFO] [stderr] 20: 0x55b3267497b0 - std::panicking::try::hbd218b3dcbe12757 [INFO] [stderr] at src/libstd/panicking.rs:281 [INFO] [stderr] 21: 0x55b3267497b0 - std::panic::catch_unwind::h0175a6dbda08cacb [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 22: 0x55b3267497b0 - std::rt::lang_start_internal::h09fd43f7d6ed11c7 [INFO] [stderr] at src/libstd/rt.rs:51 [INFO] [stderr] 23: 0x55b325d3b1d9 - std::rt::lang_start::h80bcf1f59776b846 [INFO] [stderr] at /rustc/6250d56355d72264ece721e8d0dc95b16a6824b1/src/libstd/rt.rs:67 [INFO] [stderr] 24: 0x55b325d3b32a - main [INFO] [stderr] 25: 0x7fe58be76b97 - __libc_start_main [INFO] [stderr] 26: 0x55b325d3afca - _start [INFO] [stderr] 27: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "8205ae4991e1ef4a267d8ae28d5f1c8dcc6e6a3c01c241af27ba3d1af5b847d4"` [INFO] running `"docker" "rm" "-f" "8205ae4991e1ef4a267d8ae28d5f1c8dcc6e6a3c01c241af27ba3d1af5b847d4"` [INFO] [stdout] 8205ae4991e1ef4a267d8ae28d5f1c8dcc6e6a3c01c241af27ba3d1af5b847d4