[INFO] fetching crate steel-copper 0.1.0... [INFO] documenting steel-copper-0.1.0 against 1.46.0 for beta-1.47-rustdoc-1 [INFO] extracting crate steel-copper 0.1.0 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate steel-copper 0.1.0 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 steel-copper 0.1.0 [INFO] finished tweaking crates.io crate steel-copper 0.1.0 [INFO] tweaked toml for crates.io crate steel-copper 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate crates.io crate steel-copper 0.1.0 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] 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] [stdout] e4a5005735612af7b17a0063357c5f0d6efcb717cfd5c539692ad4452b91bc45 [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" "e4a5005735612af7b17a0063357c5f0d6efcb717cfd5c539692ad4452b91bc45", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e4a5005735612af7b17a0063357c5f0d6efcb717cfd5c539692ad4452b91bc45", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e4a5005735612af7b17a0063357c5f0d6efcb717cfd5c539692ad4452b91bc45", kill_on_drop: false }` [INFO] [stdout] e4a5005735612af7b17a0063357c5f0d6efcb717cfd5c539692ad4452b91bc45 [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] 08a9eae1df2bdad9696d466399485c793e9a4bedf2c6e1bd8c731edfce36c63d [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" "08a9eae1df2bdad9696d466399485c793e9a4bedf2c6e1bd8c731edfce36c63d", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling yansi v0.5.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling opaque-debug v0.2.3 [INFO] [stderr] Compiling byte-tools v0.3.1 [INFO] [stderr] Compiling syn v1.0.35 [INFO] [stderr] Compiling safemem v0.3.3 [INFO] [stderr] Compiling zeroize v1.1.0 [INFO] [stderr] Compiling traitobject v0.1.0 [INFO] [stderr] Compiling typeable v0.1.2 [INFO] [stderr] Compiling language-tags v0.2.2 [INFO] [stderr] Compiling smallvec v1.4.1 [INFO] [stderr] Compiling state v0.4.1 [INFO] [stderr] Checking unic-char-range v0.9.0 [INFO] [stderr] Checking unic-common v0.9.0 [INFO] [stderr] Checking deunicode v0.4.3 [INFO] [stderr] Checking unic-char-range v0.7.0 [INFO] [stderr] Checking unic-common v0.7.0 [INFO] [stderr] Checking debug-helper v0.3.10 [INFO] [stderr] Checking utf8-width v0.1.4 [INFO] [stderr] Checking macro-utils v0.1.3 [INFO] [stderr] Checking cow-utils v0.1.2 [INFO] [stderr] Compiling num-bigint v0.3.0 [INFO] [stderr] Compiling error-chain v0.12.2 [INFO] [stderr] Compiling block-padding v0.1.5 [INFO] [stderr] Checking unic-char-property v0.9.0 [INFO] [stderr] Checking unic-ucd-version v0.9.0 [INFO] [stderr] Compiling httparse v1.3.4 [INFO] [stderr] Checking unic-char-property v0.7.0 [INFO] [stderr] Compiling libc v0.2.72 [INFO] [stderr] Compiling idna v0.1.5 [INFO] [stderr] Checking crc-any v2.3.5 [INFO] [stderr] Checking rc-u8-reader v2.0.12 [INFO] [stderr] Checking minifier v0.0.36 [INFO] [stderr] Checking slug v0.1.4 [INFO] [stderr] Checking unic-ucd-version v0.7.0 [INFO] [stderr] Compiling base64 v0.9.3 [INFO] [stderr] Checking html-escape v0.2.6 [INFO] [stderr] Checking inotify-sys v0.1.3 [INFO] [stderr] Checking filetime v0.2.10 [INFO] [stderr] Checking toml v0.4.10 [INFO] [stderr] Checking serde_json v1.0.56 [INFO] [stderr] Compiling pear_codegen v0.1.4 [INFO] [stderr] Compiling rocket_codegen v0.4.5 [INFO] [stderr] Compiling rocket v0.4.5 [INFO] [stderr] Compiling universal-hash v0.3.0 [INFO] [stderr] Compiling block-cipher-trait v0.6.2 [INFO] [stderr] Compiling block-buffer v0.7.3 [INFO] [stderr] Compiling aead v0.2.0 [INFO] [stderr] Checking unic-ucd-segment v0.9.0 [INFO] [stderr] Compiling mime v0.2.6 [INFO] [stderr] Checking unic-ucd-segment v0.7.0 [INFO] [stderr] Compiling indexmap v1.5.0 [INFO] [stderr] Checking mio v0.6.22 [INFO] [stderr] Checking inotify v0.7.1 [INFO] [stderr] Compiling polyval v0.3.3 [INFO] [stderr] Compiling hmac v0.7.1 [INFO] [stderr] Compiling aes-soft v0.3.3 [INFO] [stderr] Compiling sha2 v0.8.2 [INFO] [stderr] error: failed to run custom build command for `pear_codegen v0.1.4` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/pear_codegen-bc69bad7a0c3357d/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] Error: Pear requires a 'dev' or 'nightly' version of rustc. [INFO] [stderr] Installed version: 1.46.0 (2020-08-24) [INFO] [stderr] 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-0.1.4/build.rs:24:13 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55b169e89665 - 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: 0x55b169e89665 - 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: 0x55b169e89665 - std::sys_common::backtrace::_print_fmt::hd42948c952866e12 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x55b169e89665 - ::fmt::ha8f928866ff7571e [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x55b169eab3bc - core::fmt::write::he0c1e5f7426d2718 [INFO] [stderr] at src/libcore/fmt/mod.rs:1076 [INFO] [stderr] 5: 0x55b169e86ce2 - std::io::Write::write_fmt::hf3afc6cfd57d0033 [INFO] [stderr] at src/libstd/io/mod.rs:1537 [INFO] [stderr] 6: 0x55b169e8baa0 - std::sys_common::backtrace::_print::hfc0110703f3696fd [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x55b169e8baa0 - std::sys_common::backtrace::print::h3f77c6990ddfaa22 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x55b169e8baa0 - std::panicking::default_hook::{{closure}}::heae49580a8d62d75 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x55b169e8b7ec - std::panicking::default_hook::hecc34e3f729e213c [INFO] [stderr] at src/libstd/panicking.rs:217 [INFO] [stderr] 10: 0x55b169e8c0e3 - std::panicking::rust_panic_with_hook::he82f5d0644692441 [INFO] [stderr] at src/libstd/panicking.rs:526 [INFO] [stderr] 11: 0x55b169e65e15 - std::panicking::begin_panic::hc70e4171301eaefb [INFO] [stderr] at /rustc/04488afe34512aa4c33566eb16d8c912a3ae04f9/src/libstd/panicking.rs:456 [INFO] [stderr] 12: 0x55b169e61995 - build_script_build::main::h4705302db081dfc4 [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.1.4/build.rs:24 [INFO] [stderr] 13: 0x55b169e6351b - std::rt::lang_start::{{closure}}::ha1057906b5bf4539 [INFO] [stderr] at /rustc/04488afe34512aa4c33566eb16d8c912a3ae04f9/src/libstd/rt.rs:67 [INFO] [stderr] 14: 0x55b169e8c4b3 - std::rt::lang_start_internal::{{closure}}::h5d3ea623498f5f43 [INFO] [stderr] at src/libstd/rt.rs:52 [INFO] [stderr] 15: 0x55b169e8c4b3 - std::panicking::try::do_call::hac65e71be769a440 [INFO] [stderr] at src/libstd/panicking.rs:348 [INFO] [stderr] 16: 0x55b169e8c4b3 - std::panicking::try::hd4706e264bcf6712 [INFO] [stderr] at src/libstd/panicking.rs:325 [INFO] [stderr] 17: 0x55b169e8c4b3 - std::panic::catch_unwind::h948a0fb4a8b3ee82 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 18: 0x55b169e8c4b3 - std::rt::lang_start_internal::h72cc068ed2d0ac53 [INFO] [stderr] at src/libstd/rt.rs:51 [INFO] [stderr] 19: 0x55b169e634f7 - std::rt::lang_start::h5b81fc4565fb5fd6 [INFO] [stderr] at /rustc/04488afe34512aa4c33566eb16d8c912a3ae04f9/src/libstd/rt.rs:67 [INFO] [stderr] 20: 0x55b169e6219a - main [INFO] [stderr] 21: 0x7fd8cf2e70b3 - __libc_start_main [INFO] [stderr] 22: 0x55b169e6117e - _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" "08a9eae1df2bdad9696d466399485c793e9a4bedf2c6e1bd8c731edfce36c63d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "08a9eae1df2bdad9696d466399485c793e9a4bedf2c6e1bd8c731edfce36c63d", kill_on_drop: false }` [INFO] [stdout] 08a9eae1df2bdad9696d466399485c793e9a4bedf2c6e1bd8c731edfce36c63d