[INFO] fetching crate labhub 0.1.10... [INFO] documenting labhub-0.1.10 against 1.46.0 for beta-1.47-rustdoc-1 [INFO] extracting crate labhub 0.1.10 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate labhub 0.1.10 on toolchain 1.46.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate labhub 0.1.10 [INFO] finished tweaking crates.io crate labhub 0.1.10 [INFO] tweaked toml for crates.io crate labhub 0.1.10 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate crates.io crate labhub 0.1.10 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 99df1ec477c70b4e7ebc132c29d0b62393067d1d34b64349a7dd9fe7c0c47300 [INFO] running `Command { std: "docker" "start" "-a" "99df1ec477c70b4e7ebc132c29d0b62393067d1d34b64349a7dd9fe7c0c47300", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "99df1ec477c70b4e7ebc132c29d0b62393067d1d34b64349a7dd9fe7c0c47300", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "99df1ec477c70b4e7ebc132c29d0b62393067d1d34b64349a7dd9fe7c0c47300", kill_on_drop: false }` [INFO] [stdout] 99df1ec477c70b4e7ebc132c29d0b62393067d1d34b64349a7dd9fe7c0c47300 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 63a1c50a8714ab0b126834e2c937ce0c8e2ceea169f7ff0c8bbe9a3c976e7834 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "63a1c50a8714ab0b126834e2c937ce0c8e2ceea169f7ff0c8bbe9a3c976e7834", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.59 [INFO] [stderr] Compiling autocfg v0.1.4 [INFO] [stderr] Compiling cc v1.0.37 [INFO] [stderr] Checking spin v0.5.0 [INFO] [stderr] Compiling log v0.4.7 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling syn v0.15.39 [INFO] [stderr] Checking smallvec v0.6.10 [INFO] [stderr] Checking futures v0.1.28 [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Compiling rand_core v0.4.0 [INFO] [stderr] Checking either v1.5.2 [INFO] [stderr] Compiling serde v1.0.94 [INFO] [stderr] Compiling yansi v0.4.0 [INFO] [stderr] Compiling arrayvec v0.4.11 [INFO] [stderr] Compiling matches v0.1.8 [INFO] [stderr] Compiling cfg-if v0.1.9 [INFO] [stderr] Compiling yansi v0.5.0 [INFO] [stderr] Compiling safemem v0.3.0 [INFO] [stderr] Compiling percent-encoding v1.0.1 [INFO] [stderr] Checking indexmap v1.0.2 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling ryu v1.0.0 [INFO] [stderr] Compiling untrusted v0.6.2 [INFO] [stderr] Checking rustc-demangle v0.1.15 [INFO] [stderr] Compiling typeable v0.1.2 [INFO] [stderr] Compiling openssl v0.10.23 [INFO] [stderr] Compiling language-tags v0.2.2 [INFO] [stderr] Compiling regex v1.1.9 [INFO] [stderr] Compiling traitobject v0.1.0 [INFO] [stderr] Checking ppv-lite86 v0.2.5 [INFO] [stderr] Compiling state v0.4.1 [INFO] [stderr] Checking utf8-ranges v1.0.3 [INFO] [stderr] Compiling native-tls v0.2.3 [INFO] [stderr] Checking lazycell v1.2.1 [INFO] [stderr] Compiling encoding_rs v0.8.17 [INFO] [stderr] Checking dtoa v0.4.4 [INFO] [stderr] Checking remove_dir_all v0.5.2 [INFO] [stderr] Compiling error-chain v0.12.1 [INFO] [stderr] Compiling unicase v2.4.0 [INFO] [stderr] Checking try_from v0.3.2 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Compiling unicode-bidi v0.3.4 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Checking unicode-normalization v0.1.8 [INFO] [stderr] Compiling pear_codegen v0.1.2 [INFO] [stderr] Checking regex-syntax v0.6.8 [INFO] [stderr] Compiling rocket_codegen v0.4.2 [INFO] [stderr] Compiling rocket v0.4.2 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling rand_chacha v0.2.0 [INFO] [stderr] Checking miniz_oxide v0.2.2 [INFO] [stderr] Checking walkdir v2.2.8 [INFO] [stderr] Checking byteorder v1.3.2 [INFO] [stderr] Compiling httparse v1.3.4 [INFO] [stderr] Checking crossbeam-utils v0.6.5 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Checking c2-chacha v0.2.2 [INFO] [stderr] Checking crc32fast v1.2.0 [INFO] [stderr] Checking tokio-sync v0.1.6 [INFO] [stderr] Compiling base64 v0.9.3 [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Compiling hyper v0.12.32 [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-ec768284c19d9431/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: 1.46.0 (2020-08-24). 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: 0x560da57b93e5 - backtrace::backtrace::libunwind::trace::h14d338b30b3ea0a7 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stderr] 1: 0x560da57b93e5 - backtrace::backtrace::trace_unsynchronized::h73ea91d74a3fd67f [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x560da57b93e5 - std::sys_common::backtrace::_print_fmt::hd42948c952866e12 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x560da57b93e5 - ::fmt::ha8f928866ff7571e [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x560da57db13c - core::fmt::write::he0c1e5f7426d2718 [INFO] [stderr] at src/libcore/fmt/mod.rs:1076 [INFO] [stderr] 5: 0x560da57b6a62 - std::io::Write::write_fmt::hf3afc6cfd57d0033 [INFO] [stderr] at src/libstd/io/mod.rs:1537 [INFO] [stderr] 6: 0x560da57bb820 - std::sys_common::backtrace::_print::hfc0110703f3696fd [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x560da57bb820 - std::sys_common::backtrace::print::h3f77c6990ddfaa22 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x560da57bb820 - std::panicking::default_hook::{{closure}}::heae49580a8d62d75 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x560da57bb56c - std::panicking::default_hook::hecc34e3f729e213c [INFO] [stderr] at src/libstd/panicking.rs:217 [INFO] [stderr] 10: 0x560da57bbe63 - std::panicking::rust_panic_with_hook::he82f5d0644692441 [INFO] [stderr] at src/libstd/panicking.rs:526 [INFO] [stderr] 11: 0x560da5794a55 - std::panicking::begin_panic::h6d385f2e6a44aecb [INFO] [stderr] at /rustc/04488afe34512aa4c33566eb16d8c912a3ae04f9/src/libstd/panicking.rs:456 [INFO] [stderr] 12: 0x560da5792836 - build_script_build::main::hdd1ef894ffdc604a [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.1.2/build.rs:31 [INFO] [stderr] 13: 0x560da5794fcb - std::rt::lang_start::{{closure}}::hc28c427cd24c05c6 [INFO] [stderr] at /rustc/04488afe34512aa4c33566eb16d8c912a3ae04f9/src/libstd/rt.rs:67 [INFO] [stderr] 14: 0x560da57bc233 - std::rt::lang_start_internal::{{closure}}::h5d3ea623498f5f43 [INFO] [stderr] at src/libstd/rt.rs:52 [INFO] [stderr] 15: 0x560da57bc233 - std::panicking::try::do_call::hac65e71be769a440 [INFO] [stderr] at src/libstd/panicking.rs:348 [INFO] [stderr] 16: 0x560da57bc233 - std::panicking::try::hd4706e264bcf6712 [INFO] [stderr] at src/libstd/panicking.rs:325 [INFO] [stderr] 17: 0x560da57bc233 - std::panic::catch_unwind::h948a0fb4a8b3ee82 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 18: 0x560da57bc233 - std::rt::lang_start_internal::h72cc068ed2d0ac53 [INFO] [stderr] at src/libstd/rt.rs:51 [INFO] [stderr] 19: 0x560da5794fa7 - std::rt::lang_start::h7a591ddc6913555e [INFO] [stderr] at /rustc/04488afe34512aa4c33566eb16d8c912a3ae04f9/src/libstd/rt.rs:67 [INFO] [stderr] 20: 0x560da57936da - main [INFO] [stderr] 21: 0x7f3a03cae0b3 - __libc_start_main [INFO] [stderr] 22: 0x560da579217e - _start [INFO] [stderr] 23: 0x0 - [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "63a1c50a8714ab0b126834e2c937ce0c8e2ceea169f7ff0c8bbe9a3c976e7834", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "63a1c50a8714ab0b126834e2c937ce0c8e2ceea169f7ff0c8bbe9a3c976e7834", kill_on_drop: false }` [INFO] [stdout] 63a1c50a8714ab0b126834e2c937ce0c8e2ceea169f7ff0c8bbe9a3c976e7834