[INFO] cloning repository https://github.com/surt91/fractal_farm [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/surt91/fractal_farm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsurt91%2Ffractal_farm", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsurt91%2Ffractal_farm'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 396fa9642fd310c4dd13c3076cd775b7907ecad1 [INFO] testing surt91/fractal_farm against 1.49.0 for beta-1.50-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsurt91%2Ffractal_farm" "/workspace/builds/worker-12/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/surt91/fractal_farm on toolchain 1.49.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/surt91/fractal_farm [INFO] finished tweaking git repo https://github.com/surt91/fractal_farm [INFO] tweaked toml for git repo https://github.com/surt91/fractal_farm written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/surt91/fractal_farm already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a152dbbc8bc7ebe0d698ce6baeed012fb256e3906b222b8d2ba0b03780b128f6 [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" "a152dbbc8bc7ebe0d698ce6baeed012fb256e3906b222b8d2ba0b03780b128f6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a152dbbc8bc7ebe0d698ce6baeed012fb256e3906b222b8d2ba0b03780b128f6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a152dbbc8bc7ebe0d698ce6baeed012fb256e3906b222b8d2ba0b03780b128f6", kill_on_drop: false }` [INFO] [stdout] a152dbbc8bc7ebe0d698ce6baeed012fb256e3906b222b8d2ba0b03780b128f6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "RUSTFLAGS=--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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", 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] a05dbfe358037072be4da6d018d94d3888b3680322eddee991263cd0ea8c7cc5 [INFO] running `Command { std: "docker" "start" "-a" "a05dbfe358037072be4da6d018d94d3888b3680322eddee991263cd0ea8c7cc5", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.45 [INFO] [stderr] Compiling proc-macro2 v0.4.24 [INFO] [stderr] Compiling serde v1.0.81 [INFO] [stderr] Compiling safemem v0.3.0 [INFO] [stderr] Compiling httparse v1.3.3 [INFO] [stderr] Compiling unic-char-range v0.7.0 [INFO] [stderr] Compiling num-bigint v0.2.1 [INFO] [stderr] Compiling unic-common v0.7.0 [INFO] [stderr] Compiling num-rational v0.2.1 [INFO] [stderr] Compiling indexmap v1.0.2 [INFO] [stderr] Compiling failure_derive v0.1.3 [INFO] [stderr] Compiling num-complex v0.2.1 [INFO] [stderr] Compiling deunicode v0.4.3 [INFO] [stderr] Compiling arrayref v0.3.5 [INFO] [stderr] Compiling byte-tools v0.2.0 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling memchr v2.1.1 [INFO] [stderr] Compiling ring v0.13.5 [INFO] [stderr] Compiling crossbeam-utils v0.6.2 [INFO] [stderr] Compiling rand_xorshift v0.1.0 [INFO] [stderr] Compiling term v0.5.1 [INFO] [stderr] Compiling base64 v0.10.0 [INFO] [stderr] Compiling pear_codegen v0.1.2 [INFO] [stderr] Compiling arrayvec v0.4.8 [INFO] [stderr] Compiling pest v2.0.2 [INFO] [stderr] Compiling tokio-executor v0.1.5 [INFO] [stderr] Compiling rocket_codegen v0.4.0 [INFO] [stderr] Compiling rocket v0.4.0 [INFO] [stderr] Compiling libsqlite3-sys v0.9.3 [INFO] [stderr] Compiling itertools v0.8.0 [INFO] [stderr] Compiling unic-ucd-version v0.7.0 [INFO] [stderr] Compiling smallvec v0.6.7 [INFO] [stderr] Compiling unic-char-property v0.7.0 [INFO] [stderr] Compiling base64 v0.9.3 [INFO] [stderr] Compiling block-buffer v0.3.3 [INFO] [stderr] Compiling slug v0.1.4 [INFO] [stderr] Compiling log v0.3.9 [INFO] [stderr] Compiling log-panics v2.0.0 [INFO] [stderr] Compiling idna v0.1.5 [INFO] [stderr] Compiling r2d2 v0.8.3 [INFO] [stderr] Compiling rand_chacha v0.1.0 [INFO] [stderr] Compiling rand v0.6.1 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling syn v0.13.11 [INFO] [stderr] Compiling unic-ucd-segment v0.7.0 [INFO] [stderr] Compiling crossbeam-epoch v0.3.1 [INFO] [stderr] Compiling mime v0.2.6 [INFO] [stderr] Compiling generic-array v0.9.0 [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-d29d9b07d31bf35d/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: 1.49.0 (2020-12-29). 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: 0x5616eab843e0 - std::backtrace_rs::backtrace::libunwind::trace::h04d12fdcddff82aa [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/../../backtrace/src/backtrace/libunwind.rs:100:5 [INFO] [stderr] 1: 0x5616eab843e0 - std::backtrace_rs::backtrace::trace_unsynchronized::h1459b974b6fbe5e1 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x5616eab843e0 - std::sys_common::backtrace::_print_fmt::h9b8396a669123d95 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x5616eab843e0 - ::fmt::he009dcaaa75eed60 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x5616eaba1b1c - core::fmt::write::h77b4746b0dea1dd3 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/core/src/fmt/mod.rs:1078:17 [INFO] [stderr] 5: 0x5616eab819c2 - std::io::Write::write_fmt::heb7e50902e98831c [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/io/mod.rs:1518:15 [INFO] [stderr] 6: 0x5616eab86545 - std::sys_common::backtrace::_print::h2d880c9e69a21be9 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x5616eab86545 - std::sys_common::backtrace::print::h5f02b1bb49f36879 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x5616eab86545 - std::panicking::default_hook::{{closure}}::h658e288a7a809b29 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x5616eab861e8 - std::panicking::default_hook::hb52d73f0da9a4bb8 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:227:9 [INFO] [stderr] 10: 0x5616eab86c81 - std::panicking::rust_panic_with_hook::hfe7e1c684e3e6462 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:593:17 [INFO] [stderr] 11: 0x5616eab5292a - std::panicking::begin_panic::{{closure}}::h4a73a227cc620f30 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:522:9 [INFO] [stderr] 12: 0x5616eab51c98 - std::sys_common::backtrace::__rust_end_short_backtrace::h2ee4627295d28562 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stderr] 13: 0x5616eab52867 - std::panicking::begin_panic::ha90fd8adb2aaa256 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:521:12 [INFO] [stderr] 14: 0x5616eab5070e - build_script_build::main::h8e13e3f91fb94f9c [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.1.2/build.rs:31:13 [INFO] [stderr] 15: 0x5616eab52e4b - core::ops::function::FnOnce::call_once::ha8836e3ff42ee91a [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/core/src/ops/function.rs:227:5 [INFO] [stderr] 16: 0x5616eab51cce - std::sys_common::backtrace::__rust_begin_short_backtrace::h3de24649bcf916c4 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stderr] 17: 0x5616eab51a31 - std::rt::lang_start::{{closure}}::hf0f119bf68249c67 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/rt.rs:66:18 [INFO] [stderr] 18: 0x5616eab870a7 - core::ops::function::impls:: for &F>::call_once::h57e2a071d427b24c [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/core/src/ops/function.rs:259:13 [INFO] [stderr] 19: 0x5616eab870a7 - std::panicking::try::do_call::h81cbbe0c3b30a28e [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:381:40 [INFO] [stderr] 20: 0x5616eab870a7 - std::panicking::try::hbeeb95b4e1f0a876 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panicking.rs:345:19 [INFO] [stderr] 21: 0x5616eab870a7 - std::panic::catch_unwind::h59c48ccb40a0bf20 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/panic.rs:396:14 [INFO] [stderr] 22: 0x5616eab870a7 - std::rt::lang_start_internal::ha53ab63f88fee728 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/rt.rs:51:25 [INFO] [stderr] 23: 0x5616eab51a07 - std::rt::lang_start::hbfa878bfd46230f5 [INFO] [stderr] at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca/library/std/src/rt.rs:65:5 [INFO] [stderr] 24: 0x5616eab514fa - main [INFO] [stderr] 25: 0x7f0bced8e0b3 - __libc_start_main [INFO] [stderr] 26: 0x5616eab500ae - _start [INFO] [stderr] 27: 0x0 - [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "a05dbfe358037072be4da6d018d94d3888b3680322eddee991263cd0ea8c7cc5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a05dbfe358037072be4da6d018d94d3888b3680322eddee991263cd0ea8c7cc5", kill_on_drop: false }` [INFO] [stdout] a05dbfe358037072be4da6d018d94d3888b3680322eddee991263cd0ea8c7cc5