[INFO] fetching crate connect4-server 0.1.0...
[INFO] documenting connect4-server-0.1.0 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate connect4-server 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate connect4-server 0.1.0 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-5/source/Cargo.toml
[INFO] crate crates.io crate connect4-server 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tera v0.11.20
[INFO] [stderr]   Downloaded serde_with v1.4.0
[INFO] [stderr]   Downloaded widestring v0.4.0
[INFO] [stderr]   Downloaded bufstream v0.1.4
[INFO] [stderr]   Downloaded thiserror-impl v1.0.14
[INFO] [stderr]   Downloaded jsonwebtoken v7.1.0
[INFO] [stderr]   Downloaded handlebars v1.1.0
[INFO] [stderr]   Downloaded unic-char-range v0.7.0
[INFO] [stderr]   Downloaded typed-builder v0.3.0
[INFO] [stderr]   Downloaded unic-segment v0.7.0
[INFO] [stderr]   Downloaded slug v0.1.4
[INFO] [stderr]   Downloaded unic-ucd-version v0.7.0
[INFO] [stderr]   Downloaded humansize v1.1.0
[INFO] [stderr]   Downloaded unic-char-property v0.7.0
[INFO] [stderr]   Downloaded inotify v0.7.0
[INFO] [stderr]   Downloaded deunicode v0.4.3
[INFO] [stderr]   Downloaded unic-common v0.7.0
[INFO] [stderr]   Downloaded yansi v0.4.0
[INFO] [stderr]   Downloaded rocket_http v0.4.4
[INFO] [stderr]   Downloaded unic-ucd-segment v0.7.0
[INFO] [stderr]   Downloaded trust-dns-proto v0.19.3
[INFO] [stderr]   Downloaded ipconfig v0.2.1
[INFO] [stderr]   Downloaded serde_with_macros v1.1.0
[INFO] [stderr]   Downloaded async-trait v0.1.30
[INFO] [stderr]   Downloaded mongodb v0.9.2
[INFO] [stderr]   Downloaded enum-as-inner v0.3.2
[INFO] [stderr]   Downloaded bson v0.14.1
[INFO] [stderr]   Downloaded webpki v0.21.2
[INFO] [stderr]   Downloaded pear_codegen v0.1.2
[INFO] [stderr]   Downloaded simple_asn1 v0.4.0
[INFO] [stderr]   Downloaded os_info v1.3.3
[INFO] [stderr]   Downloaded rocket v0.4.4
[INFO] [stderr]   Downloaded pem v0.7.0
[INFO] [stderr]   Downloaded thiserror v1.0.14
[INFO] [stderr]   Downloaded rocket_codegen v0.4.4
[INFO] [stderr]   Downloaded trust-dns-resolver v0.19.3
[INFO] [stderr]   Downloaded connect4-coms v0.1.0
[INFO] [stderr]   Downloaded connect4-lib v0.1.0
[INFO] [stderr]   Downloaded cookie v0.11.2
[INFO] [stderr]   Downloaded pear v0.1.2
[INFO] [stderr]   Downloaded ring v0.16.12
[INFO] [stderr]   Downloaded rocket_contrib v0.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5837757aa8123379eed963e304813b421b8e2e4b2bbd682069cc7696c83caa09
[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" "5837757aa8123379eed963e304813b421b8e2e4b2bbd682069cc7696c83caa09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5837757aa8123379eed963e304813b421b8e2e4b2bbd682069cc7696c83caa09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5837757aa8123379eed963e304813b421b8e2e4b2bbd682069cc7696c83caa09", kill_on_drop: false }`
[INFO] [stdout] 5837757aa8123379eed963e304813b421b8e2e4b2bbd682069cc7696c83caa09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+beta-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0efb7db73e31d2b22084fe107a0e6ee0ef026e1edfbaa59a9f06adc975ddb85a
[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" "0efb7db73e31d2b22084fe107a0e6ee0ef026e1edfbaa59a9f06adc975ddb85a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling yansi v0.4.0
[INFO] [stderr]    Compiling smallvec v1.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]     Checking unic-char-range v0.7.0
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.4
[INFO] [stderr]     Checking unic-common v0.7.0
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling state v0.4.1
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking deunicode v0.4.3
[INFO] [stderr]    Compiling os_info v1.3.3
[INFO] [stderr]     Checking md5 v0.6.1
[INFO] [stderr]     Checking humansize v1.1.0
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking version_check v0.9.1
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling ring v0.16.12
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]     Checking unic-char-property v0.7.0
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking unic-ucd-version v0.7.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling pear_codegen v0.1.2
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking slug v0.1.4
[INFO] [stderr]    Compiling rocket_codegen v0.4.4
[INFO] [stderr]    Compiling rocket v0.4.4
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking ryu v1.0.3
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking unic-ucd-segment v0.7.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking filetime v0.2.9
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]    Compiling log v0.3.9
[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-127ebaddb7318eb8/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   [1;31mError:[0m [37mPear requires a nightly or dev version of Rust.[0m
[INFO] [stderr]   [37mInstalled version is:[0m [33m1.48.0-beta.2 (2020-10-08)[0m. [37mMinimum required:[0m [33m1.31.0-nightly (2018-10-05)[0m.
[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:     0x55b8d7255b50 - std::backtrace_rs::backtrace::libunwind::trace::h7cf3ca97bd83fbab
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]      1:     0x55b8d7255b50 - std::backtrace_rs::backtrace::trace_unsynchronized::h5a69c674b2d9ea5c
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x55b8d7255b50 - std::sys_common::backtrace::_print_fmt::hdf72478dfcb50678
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]      3:     0x55b8d7255b50 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1e0bdbb35e83deca
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]      4:     0x55b8d72725dc - core::fmt::write::he67f9b17bcb7ee73
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/fmt/mod.rs:1080
[INFO] [stderr]      5:     0x55b8d7253142 - std::io::Write::write_fmt::hac97d5cb5753e2ec
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/mod.rs:1516
[INFO] [stderr]      6:     0x55b8d7257c7d - std::sys_common::backtrace::_print::haa20918e28a126c5
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]      7:     0x55b8d7257c7d - std::sys_common::backtrace::print::h49e772a4873d9076
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]      8:     0x55b8d7257c7d - std::panicking::default_hook::{{closure}}::hb218b305d15e3f11
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:208
[INFO] [stderr]      9:     0x55b8d7257928 - std::panicking::default_hook::h63997b7b949e1ce0
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:227
[INFO] [stderr]     10:     0x55b8d7258301 - std::panicking::rust_panic_with_hook::hb54f09ccadf64bd3
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:577
[INFO] [stderr]     11:     0x55b8d72258f8 - std::panicking::begin_panic::{{closure}}::h2d08c9a3a14596f4
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:506
[INFO] [stderr]     12:     0x55b8d7224b48 - std::sys_common::backtrace::__rust_end_short_backtrace::h0d6592572146d589
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]     13:     0x55b8d7225823 - std::panicking::begin_panic::h16c81ba69d2e5b3f
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:505
[INFO] [stderr]     14:     0x55b8d7223742 - build_script_build::main::h8a4d316b30a7a5d6
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.1.2/build.rs:31
[INFO] [stderr]     15:     0x55b8d7225e4b - core::ops::function::FnOnce::call_once::h8aab73bfd54ca1ae
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:227
[INFO] [stderr]     16:     0x55b8d7224b7e - std::sys_common::backtrace::__rust_begin_short_backtrace::h8866072623bd1f37
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]     17:     0x55b8d72249b1 - std::rt::lang_start::{{closure}}::hc73ad4c0e4702a02
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/rt.rs:66
[INFO] [stderr]     18:     0x55b8d7258727 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h908982dfc31b926f
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/ops/function.rs:259
[INFO] [stderr]     19:     0x55b8d7258727 - std::panicking::try::do_call::h92777899503b7584
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:381
[INFO] [stderr]     20:     0x55b8d7258727 - std::panicking::try::h8815656b2b76e792
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:345
[INFO] [stderr]     21:     0x55b8d7258727 - std::panic::catch_unwind::h112ab81228f50b46
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panic.rs:382
[INFO] [stderr]     22:     0x55b8d7258727 - std::rt::lang_start_internal::h1772a706c7575c24
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/rt.rs:51
[INFO] [stderr]     23:     0x55b8d7224987 - std::rt::lang_start::hc9160db2aca64f68
[INFO] [stderr]                                  at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/rt.rs:65
[INFO] [stderr]     24:     0x55b8d722454a - main
[INFO] [stderr]     25:     0x7f47bf40b0b3 - __libc_start_main
[INFO] [stderr]     26:     0x55b8d72230ae - _start
[INFO] [stderr]     27:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0efb7db73e31d2b22084fe107a0e6ee0ef026e1edfbaa59a9f06adc975ddb85a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0efb7db73e31d2b22084fe107a0e6ee0ef026e1edfbaa59a9f06adc975ddb85a", kill_on_drop: false }`
[INFO] [stdout] 0efb7db73e31d2b22084fe107a0e6ee0ef026e1edfbaa59a9f06adc975ddb85a
