[INFO] cloning repository https://github.com/quanbrew/synco
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/quanbrew/synco" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquanbrew%2Fsynco"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquanbrew%2Fsynco'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 055a42868ec557d13c04033db044d2e5c5750539
[INFO] testing quanbrew/synco against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquanbrew%2Fsynco" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/quanbrew/synco on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/quanbrew/synco
[INFO] finished tweaking git repo https://github.com/quanbrew/synco
[INFO] tweaked toml for git repo https://github.com/quanbrew/synco written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/quanbrew/synco 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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 6a1d543e56ff4853d51b1d799bf758d97e32bd76eeff1142feedb474bef925c9
[INFO] running `"docker" "start" "-a" "6a1d543e56ff4853d51b1d799bf758d97e32bd76eeff1142feedb474bef925c9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.40
[INFO] [stderr]    Compiling cfg-if v0.1.3
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling yansi v0.4.0
[INFO] [stderr]    Compiling cc v1.0.15
[INFO] [stderr]    Compiling unicode-normalization v0.1.7
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]    Compiling byteorder v1.2.3
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling serde v1.0.55
[INFO] [stderr]    Compiling untrusted v0.5.1
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling regex v1.0.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.8
[INFO] [stderr]    Compiling bytes v0.3.0
[INFO] [stderr]    Compiling ordermap v0.2.13
[INFO] [stderr]    Compiling slab v0.1.3
[INFO] [stderr]    Compiling same-file v1.0.2
[INFO] [stderr]    Compiling smallvec v0.6.1
[INFO] [stderr]    Compiling state v0.4.1
[INFO] [stderr]    Compiling pear v0.0.16
[INFO] [stderr]    Compiling quick-error v1.2.1
[INFO] [stderr]    Compiling termcolor v0.3.6
[INFO] [stderr]    Compiling md5 v0.3.7
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling syntex_fmt_macros v0.5.0
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling regex-syntax v0.6.0
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling base64 v0.6.0
[INFO] [stderr]    Compiling base64 v0.9.1
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling walkdir v2.1.4
[INFO] [stderr]    Compiling pear_codegen v0.0.16
[INFO] [stderr]    Compiling rocket v0.3.10
[INFO] [stderr]    Compiling rocket_codegen v0.3.10
[INFO] [stderr]    Compiling humantime v1.1.1
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling net2 v0.2.32
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling isatty v0.1.7
[INFO] [stderr]    Compiling inotify v0.3.0
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling filetime v0.1.15
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr] error: failed to run custom build command for `rocket v0.3.10`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rocket-df422a6db4e369fe/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] Error: Rocket requires a nightly or dev version of Rust.
[INFO] [stderr] Installed version is: 1.44.0 (2020-06-01). Minimum required: 1.27.0-nightly (2018-04-26).
[INFO] [stderr] See the getting started guide (https://rocket.rs/guide/getting-started/) for more information.
[INFO] [stderr] thread 'main' panicked at 'Aborting compilation due to incompatible compiler.', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.3.10/build.rs:38:13
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5586ba851b44 - 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:     0x5586ba851b44 - 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:     0x5586ba851b44 - std::sys_common::backtrace::_print_fmt::h2a45d89b653a4da8
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x5586ba851b44 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h41a0a93ab85e6aa1
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x5586ba8748cc - core::fmt::write::hdaea18585065a96d
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stderr]    5:     0x5586ba84f1e3 - std::io::Write::write_fmt::h0cea70c809005252
[INFO] [stderr]                                at src/libstd/io/mod.rs:1504
[INFO] [stderr]    6:     0x5586ba8540e5 - std::sys_common::backtrace::_print::hd95f9978cc145ca4
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x5586ba8540e5 - std::sys_common::backtrace::print::hfb25ca2291be47d0
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x5586ba8540e5 - std::panicking::default_hook::{{closure}}::h44f76cee5dc8591c
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x5586ba853e22 - std::panicking::default_hook::h198e1a712910f1e6
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x5586ba8546f2 - std::panicking::rust_panic_with_hook::hc0b4730bb8013f9d
[INFO] [stderr]                                at src/libstd/panicking.rs:511
[INFO] [stderr]   11:     0x5586ba82bd7d - std::panicking::begin_panic::h01e6855a0139fba8
[INFO] [stderr]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:438
[INFO] [stderr]   12:     0x5586ba829a7f - build_script_build::main::h0ae0c2b8c96de82b
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.3.10/build.rs:38
[INFO] [stderr]   13:     0x5586ba82afcb - std::rt::lang_start::{{closure}}::h8eb7ca1b901ca2c2
[INFO] [stderr]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/rt.rs:67
[INFO] [stderr]   14:     0x5586ba854b38 - std::rt::lang_start_internal::{{closure}}::h7a212202ff76034b
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   15:     0x5586ba854b38 - std::panicking::try::do_call::h6d214a73427d759b
[INFO] [stderr]                                at src/libstd/panicking.rs:331
[INFO] [stderr]   16:     0x5586ba854b38 - std::panicking::try::hc078f0e11721d1cb
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   17:     0x5586ba854b38 - std::panic::catch_unwind::hb31c05be30625612
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   18:     0x5586ba854b38 - std::rt::lang_start_internal::hcf7fb98a775d5af0
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   19:     0x5586ba82afa7 - std::rt::lang_start::h14b036d5b2a60fa1
[INFO] [stderr]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/rt.rs:67
[INFO] [stderr]   20:     0x5586ba82a92a - main
[INFO] [stderr]   21:     0x7ffa47e370b3 - __libc_start_main
[INFO] [stderr]   22:     0x5586ba82917e - _start
[INFO] [stderr]   23:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: failed to run custom build command for `pear_codegen v0.0.16`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/pear_codegen-0d19c4b1e60eeddc/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: 1.27.0-nightly (2018-04-14).
[INFO] [stderr] thread 'main' panicked at 'Aborting compilation due to incompatible compiler.', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.16/build.rs:31:13
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55a0293898f4 - 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:     0x55a0293898f4 - 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:     0x55a0293898f4 - std::sys_common::backtrace::_print_fmt::h2a45d89b653a4da8
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x55a0293898f4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h41a0a93ab85e6aa1
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x55a0293ac67c - core::fmt::write::hdaea18585065a96d
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stderr]    5:     0x55a029386f93 - std::io::Write::write_fmt::h0cea70c809005252
[INFO] [stderr]                                at src/libstd/io/mod.rs:1504
[INFO] [stderr]    6:     0x55a02938be95 - std::sys_common::backtrace::_print::hd95f9978cc145ca4
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x55a02938be95 - std::sys_common::backtrace::print::hfb25ca2291be47d0
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x55a02938be95 - std::panicking::default_hook::{{closure}}::h44f76cee5dc8591c
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x55a02938bbd2 - std::panicking::default_hook::h198e1a712910f1e6
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x55a02938c4a2 - std::panicking::rust_panic_with_hook::hc0b4730bb8013f9d
[INFO] [stderr]                                at src/libstd/panicking.rs:511
[INFO] [stderr]   11:     0x55a029363b2d - std::panicking::begin_panic::h3ac6529561d95969
[INFO] [stderr]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:438
[INFO] [stderr]   12:     0x55a029361836 - build_script_build::main::h25c33262dd02233a
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.16/build.rs:31
[INFO] [stderr]   13:     0x55a029362d8b - std::rt::lang_start::{{closure}}::h9c51b0032a0c8f29
[INFO] [stderr]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/rt.rs:67
[INFO] [stderr]   14:     0x55a02938c8e8 - std::rt::lang_start_internal::{{closure}}::h7a212202ff76034b
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   15:     0x55a02938c8e8 - std::panicking::try::do_call::h6d214a73427d759b
[INFO] [stderr]                                at src/libstd/panicking.rs:331
[INFO] [stderr]   16:     0x55a02938c8e8 - std::panicking::try::hc078f0e11721d1cb
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   17:     0x55a02938c8e8 - std::panic::catch_unwind::hb31c05be30625612
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   18:     0x55a02938c8e8 - std::rt::lang_start_internal::hcf7fb98a775d5af0
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   19:     0x55a029362d67 - std::rt::lang_start::he4b8885b818b4190
[INFO] [stderr]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/rt.rs:67
[INFO] [stderr]   20:     0x55a0293626da - main
[INFO] [stderr]   21:     0x7fe958a840b3 - __libc_start_main
[INFO] [stderr]   22:     0x55a02936117e - _start
[INFO] [stderr]   23:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "6a1d543e56ff4853d51b1d799bf758d97e32bd76eeff1142feedb474bef925c9"`
[INFO] running `"docker" "rm" "-f" "6a1d543e56ff4853d51b1d799bf758d97e32bd76eeff1142feedb474bef925c9"`
[INFO] [stdout] 6a1d543e56ff4853d51b1d799bf758d97e32bd76eeff1142feedb474bef925c9