[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#0cbcb17d3306d6e22eafc2c05ce885db97d0189c for pr-68766 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnanotech%2Fdhall-rs" "/workspace/builds/worker-2/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nanotech/dhall-rs on toolchain 0cbcb17d3306d6e22eafc2c05ce885db97d0189c [INFO] running `"/workspace/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "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-2/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" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "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] fa0d7752e8db5efa16a46acd1fcc80bf3a2667e08adf51ef1e081d60d4d506e3 [INFO] running `"docker" "start" "-a" "fa0d7752e8db5efa16a46acd1fcc80bf3a2667e08adf51ef1e081d60d4d506e3"` [INFO] [stderr] Compiling utf8-ranges v1.0.3 [INFO] [stderr] Compiling either v1.1.0 [INFO] [stderr] Compiling fixedbitset v0.1.7 [INFO] [stderr] Compiling opaque-debug v0.2.2 [INFO] [stderr] Compiling diff v0.1.10 [INFO] [stderr] Compiling lalrpop-util v0.17.1 [INFO] [stderr] Checking static_assertions v0.2.5 [INFO] [stderr] Checking bytecount v0.5.1 [INFO] [stderr] Compiling regex-syntax v0.6.7 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling nom v5.0.0 [INFO] [stderr] Compiling libc v0.2.58 [INFO] [stderr] Compiling typenum v1.10.0 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling aho-corasick v0.7.3 [INFO] [stderr] Compiling stackvector v1.0.6 [INFO] [stderr] Compiling lexical-core v0.4.2 [INFO] [stderr] Compiling itertools v0.8.0 [INFO] [stderr] Compiling serde v1.0.94 [INFO] [stderr] Compiling ena v0.13.0 [INFO] [stderr] Compiling petgraph v0.4.13 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling dirs v1.0.5 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling term v0.5.2 [INFO] [stderr] Compiling generic-array v0.12.3 [INFO] [stderr] Compiling ascii-canvas v2.0.0 [INFO] [stderr] Compiling block-buffer v0.7.3 [INFO] [stderr] Compiling digest v0.8.1 [INFO] [stderr] Compiling sha2 v0.8.0 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling string_cache_codegen v0.4.2 [INFO] [stderr] Compiling string_cache v0.7.3 [INFO] [stderr] Compiling regex v1.1.7 [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-d776fb23d56efd11/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: 0x559552becc78 - backtrace::backtrace::libunwind::trace::hdec022fb119dd06d [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x559552becc78 - backtrace::backtrace::trace_unsynchronized::h1f309365306cc260 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x559552becc78 - std::sys_common::backtrace::_print_fmt::hedd348b4f893987a [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:77 [INFO] [stderr] 3: 0x559552becc78 - ::fmt::h381b96a3f9ce8032 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x559552c0beac - core::fmt::write::he5b6a663f8bc9f46 [INFO] [stderr] at src/libcore/fmt/mod.rs:1052 [INFO] [stderr] 5: 0x559552bea087 - std::io::Write::write_fmt::h39edd6a910b76376 [INFO] [stderr] at src/libstd/io/mod.rs:1428 [INFO] [stderr] 6: 0x559552bef185 - std::sys_common::backtrace::_print::hecbfa51643b1d1b2 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x559552bef185 - std::sys_common::backtrace::print::he854cdfad1b40844 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x559552bef185 - std::panicking::default_hook::{{closure}}::h590c45dbd8599059 [INFO] [stderr] at src/libstd/panicking.rs:204 [INFO] [stderr] 9: 0x559552beeec6 - std::panicking::default_hook::h6b14cee906df5ae9 [INFO] [stderr] at src/libstd/panicking.rs:224 [INFO] [stderr] 10: 0x559552bef792 - std::panicking::rust_panic_with_hook::h845de504d308e21c [INFO] [stderr] at src/libstd/panicking.rs:470 [INFO] [stderr] 11: 0x559552bef37b - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:378 [INFO] [stderr] 12: 0x559552c0a401 - core::panicking::panic_fmt::hc919459cc61f60e0 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 13: 0x559552c0a223 - core::option::expect_none_failed::hcec7632dbb4bd9b0 [INFO] [stderr] at src/libcore/option.rs:1199 [INFO] [stderr] 14: 0x5595522ad929 - core::result::Result::unwrap::h62536d81219441b9 [INFO] [stderr] at /rustc/0cbcb17d3306d6e22eafc2c05ce885db97d0189c/src/libcore/result.rs:963 [INFO] [stderr] 15: 0x5595522adab5 - build_script_build::main::h7170cb5dfd84c681 [INFO] [stderr] at /opt/rustwide/workdir/build.rs:4 [INFO] [stderr] 16: 0x5595522ad9d0 - std::rt::lang_start::{{closure}}::hc0729a30e75f81e2 [INFO] [stderr] at /rustc/0cbcb17d3306d6e22eafc2c05ce885db97d0189c/src/libstd/rt.rs:67 [INFO] [stderr] 17: 0x559552bef253 - std::rt::lang_start_internal::{{closure}}::h79efcdb1c4a7311a [INFO] [stderr] at src/libstd/rt.rs:52 [INFO] [stderr] 18: 0x559552bef253 - std::panicking::try::do_call::h8837c722d8d26052 [INFO] [stderr] at src/libstd/panicking.rs:303 [INFO] [stderr] 19: 0x559552bf22a7 - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:86 [INFO] [stderr] 20: 0x559552befc39 - std::panicking::try::h6df407c9e373308b [INFO] [stderr] at src/libstd/panicking.rs:281 [INFO] [stderr] 21: 0x559552befc39 - std::panic::catch_unwind::hb93a3e23c13dcc76 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 22: 0x559552befc39 - std::rt::lang_start_internal::h0eeb85a0fe3bba7b [INFO] [stderr] at src/libstd/rt.rs:51 [INFO] [stderr] 23: 0x5595522ad9a9 - std::rt::lang_start::hbc06717521923913 [INFO] [stderr] at /rustc/0cbcb17d3306d6e22eafc2c05ce885db97d0189c/src/libstd/rt.rs:67 [INFO] [stderr] 24: 0x5595522adb0a - main [INFO] [stderr] 25: 0x7fac92be1b97 - __libc_start_main [INFO] [stderr] 26: 0x5595522ad71a - _start [INFO] [stderr] 27: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "fa0d7752e8db5efa16a46acd1fcc80bf3a2667e08adf51ef1e081d60d4d506e3"` [INFO] running `"docker" "rm" "-f" "fa0d7752e8db5efa16a46acd1fcc80bf3a2667e08adf51ef1e081d60d4d506e3"` [INFO] [stdout] fa0d7752e8db5efa16a46acd1fcc80bf3a2667e08adf51ef1e081d60d4d506e3