[INFO] crate connect4-server 0.1.0 is already in cache [INFO] testing connect4-server-0.1.0 against 1.44.0 for beta-1.45-1 [INFO] extracting crate connect4-server 0.1.0 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate connect4-server 0.1.0 on toolchain 1.44.0 [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate connect4-server 0.1.0 [INFO] finished tweaking crates.io crate connect4-server 0.1.0 [INFO] tweaked toml for crates.io crate connect4-server 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate crates.io crate connect4-server 0.1.0 already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [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=warn" "-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" "+1.44.0" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] e75fcc64a426930c391533c6dc78a5b187b681db9895546a83ffda14a9366f5c [INFO] running `"docker" "start" "-a" "e75fcc64a426930c391533c6dc78a5b187b681db9895546a83ffda14a9366f5c"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling libc v0.2.68 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling version_check v0.9.1 [INFO] [stderr] Compiling cc v1.0.50 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling smallvec v1.2.0 [INFO] [stderr] Compiling matches v0.1.8 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling serde v1.0.106 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling typenum v1.11.2 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling ryu v1.0.3 [INFO] [stderr] Compiling yansi v0.4.0 [INFO] [stderr] Compiling regex-syntax v0.6.17 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling safemem v0.3.3 [INFO] [stderr] Compiling ppv-lite86 v0.2.6 [INFO] [stderr] Compiling percent-encoding v1.0.1 [INFO] [stderr] Compiling itoa v0.4.5 [INFO] [stderr] Compiling spin v0.5.2 [INFO] [stderr] Compiling ucd-trie v0.1.3 [INFO] [stderr] Compiling httparse v1.3.4 [INFO] [stderr] Compiling untrusted v0.7.0 [INFO] [stderr] Compiling yansi v0.5.0 [INFO] [stderr] Compiling rustc-demangle v0.1.16 [INFO] [stderr] Compiling byte-tools v0.3.1 [INFO] [stderr] Compiling futures-core v0.3.4 [INFO] [stderr] Compiling maplit v1.0.2 [INFO] [stderr] Compiling futures-sink v0.3.4 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling rustversion v1.0.2 [INFO] [stderr] Compiling futures-task v0.3.4 [INFO] [stderr] Compiling futures-io v0.3.4 [INFO] [stderr] Compiling unic-common v0.7.0 [INFO] [stderr] Compiling rayon-core v1.7.0 [INFO] [stderr] Compiling traitobject v0.1.0 [INFO] [stderr] Compiling quick-error v1.2.3 [INFO] [stderr] Compiling typeable v0.1.2 [INFO] [stderr] Compiling opaque-debug v0.2.3 [INFO] [stderr] Compiling unicode-segmentation v1.6.0 [INFO] [stderr] Compiling unic-char-range v0.7.0 [INFO] [stderr] Compiling language-tags v0.2.2 [INFO] [stderr] Compiling pin-utils v0.1.0-alpha.4 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling subtle v1.0.0 [INFO] [stderr] Compiling fake-simd v0.1.2 [INFO] [stderr] Compiling linked-hash-map v0.5.2 [INFO] [stderr] Compiling state v0.4.1 [INFO] [stderr] Compiling match_cfg v0.1.0 [INFO] [stderr] Compiling percent-encoding v2.1.0 [INFO] [stderr] Compiling pin-project-lite v0.1.4 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling bytes v0.5.4 [INFO] [stderr] Compiling base64 v0.11.0 [INFO] [stderr] Compiling deunicode v0.4.3 [INFO] [stderr] Compiling either v1.5.3 [INFO] [stderr] Compiling os_info v1.3.3 [INFO] [stderr] Compiling lazycell v1.2.1 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling md5 v0.6.1 [INFO] [stderr] Compiling hex v0.3.2 [INFO] [stderr] Compiling glob v0.2.11 [INFO] [stderr] Compiling humansize v1.1.0 [INFO] [stderr] Compiling bufstream v0.1.4 [INFO] [stderr] Compiling hex v0.4.2 [INFO] [stderr] Compiling unicode-bidi v0.3.4 [INFO] [stderr] Compiling thread_local v1.0.1 [INFO] [stderr] Compiling unicode-normalization v0.1.12 [INFO] [stderr] Compiling indexmap v1.3.2 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling proc-macro-error-attr v0.4.12 [INFO] [stderr] Compiling proc-macro-error v0.4.12 [INFO] [stderr] Compiling error-chain v0.12.2 [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Compiling pest v2.1.3 [INFO] [stderr] Compiling block-padding v0.1.5 [INFO] [stderr] Compiling pear_codegen v0.1.2 [INFO] [stderr] Compiling futures-channel v0.3.4 [INFO] [stderr] Compiling unic-ucd-version v0.7.0 [INFO] [stderr] Compiling rocket_codegen v0.4.4 [INFO] [stderr] Compiling rocket v0.4.4 [INFO] [stderr] Compiling unic-char-property v0.7.0 [INFO] [stderr] Compiling walkdir v2.3.1 [INFO] [stderr] Compiling lru-cache v0.1.2 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling slug v0.1.4 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling backtrace-sys v0.1.35 [INFO] [stderr] Compiling ring v0.16.12 [INFO] [stderr] Compiling unic-ucd-segment v0.7.0 [INFO] [stderr] error: failed to run custom build command for `pear_codegen v0.1.2` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/pear_codegen-cd87d6230a838df4/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] Error: Pear requires a nightly or dev version of Rust. [INFO] [stderr] Installed version is: 1.44.0 (2020-06-01). Minimum required: 1.31.0-nightly (2018-10-05). [INFO] [stderr] thread 'main' panicked at 'Aborting compilation due to incompatible compiler.', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.1.2/build.rs:31:13 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x558c57659974 - backtrace::backtrace::libunwind::trace::hc1c4a1d8ad423b97 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stderr] 1: 0x558c57659974 - backtrace::backtrace::trace_unsynchronized::h82274781060cb056 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x558c57659974 - std::sys_common::backtrace::_print_fmt::h2a45d89b653a4da8 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x558c57659974 - ::fmt::h41a0a93ab85e6aa1 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x558c5767c6fc - core::fmt::write::hdaea18585065a96d [INFO] [stderr] at src/libcore/fmt/mod.rs:1069 [INFO] [stderr] 5: 0x558c57657013 - std::io::Write::write_fmt::h0cea70c809005252 [INFO] [stderr] at src/libstd/io/mod.rs:1504 [INFO] [stderr] 6: 0x558c5765bf15 - std::sys_common::backtrace::_print::hd95f9978cc145ca4 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x558c5765bf15 - std::sys_common::backtrace::print::hfb25ca2291be47d0 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x558c5765bf15 - std::panicking::default_hook::{{closure}}::h44f76cee5dc8591c [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x558c5765bc52 - std::panicking::default_hook::h198e1a712910f1e6 [INFO] [stderr] at src/libstd/panicking.rs:218 [INFO] [stderr] 10: 0x558c5765c522 - std::panicking::rust_panic_with_hook::hc0b4730bb8013f9d [INFO] [stderr] at src/libstd/panicking.rs:511 [INFO] [stderr] 11: 0x558c57632b2d - std::panicking::begin_panic::h6d397ffc21803ba2 [INFO] [stderr] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:438 [INFO] [stderr] 12: 0x558c57630836 - build_script_build::main::h903b46c532bfeb6b [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.1.2/build.rs:31 [INFO] [stderr] 13: 0x558c57631d7b - std::rt::lang_start::{{closure}}::h9d2805ded20a3ad8 [INFO] [stderr] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/rt.rs:67 [INFO] [stderr] 14: 0x558c5765c968 - std::rt::lang_start_internal::{{closure}}::h7a212202ff76034b [INFO] [stderr] at src/libstd/rt.rs:52 [INFO] [stderr] 15: 0x558c5765c968 - std::panicking::try::do_call::h6d214a73427d759b [INFO] [stderr] at src/libstd/panicking.rs:331 [INFO] [stderr] 16: 0x558c5765c968 - std::panicking::try::hc078f0e11721d1cb [INFO] [stderr] at src/libstd/panicking.rs:274 [INFO] [stderr] 17: 0x558c5765c968 - std::panic::catch_unwind::hb31c05be30625612 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 18: 0x558c5765c968 - std::rt::lang_start_internal::hcf7fb98a775d5af0 [INFO] [stderr] at src/libstd/rt.rs:51 [INFO] [stderr] 19: 0x558c57631d57 - std::rt::lang_start::hc57635f3e061f5d2 [INFO] [stderr] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/rt.rs:67 [INFO] [stderr] 20: 0x558c576316da - main [INFO] [stderr] 21: 0x7ff6349e30b3 - __libc_start_main [INFO] [stderr] 22: 0x558c5763017e - _start [INFO] [stderr] 23: 0x0 - [INFO] [stderr] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "e75fcc64a426930c391533c6dc78a5b187b681db9895546a83ffda14a9366f5c"` [INFO] running `"docker" "rm" "-f" "e75fcc64a426930c391533c6dc78a5b187b681db9895546a83ffda14a9366f5c"` [INFO] [stdout] e75fcc64a426930c391533c6dc78a5b187b681db9895546a83ffda14a9366f5c