[INFO] cloning repository https://github.com/roliveiravictor/demo-rust-learning [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/roliveiravictor/demo-rust-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froliveiravictor%2Fdemo-rust-learning", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froliveiravictor%2Fdemo-rust-learning'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 17c6d10d7e28e528fcf048650b8f62a9c8ab40a8 [INFO] testing roliveiravictor/demo-rust-learning against beta-2021-01-01 for beta-1.50-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froliveiravictor%2Fdemo-rust-learning" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/roliveiravictor/demo-rust-learning on toolchain beta-2021-01-01 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/roliveiravictor/demo-rust-learning [INFO] finished tweaking git repo https://github.com/roliveiravictor/demo-rust-learning [INFO] tweaked toml for git repo https://github.com/roliveiravictor/demo-rust-learning written to /workspace/builds/worker-1/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rocket_codegen v0.4.6 [INFO] [stderr] Downloaded rocket v0.4.6 [INFO] [stderr] Downloaded rocket_http v0.4.6 [INFO] [stderr] Downloaded tokio-core v0.1.18 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 80971da294dccb89bf02d943d7694a612f35b6d12a831e78573b2324fd4723b2 [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" "80971da294dccb89bf02d943d7694a612f35b6d12a831e78573b2324fd4723b2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "80971da294dccb89bf02d943d7694a612f35b6d12a831e78573b2324fd4723b2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "80971da294dccb89bf02d943d7694a612f35b6d12a831e78573b2324fd4723b2", kill_on_drop: false }` [INFO] [stdout] 80971da294dccb89bf02d943d7694a612f35b6d12a831e78573b2324fd4723b2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5c980aec50fa9316c0f4c4aeda8a6da4c8100445f7642242573e1b4d301a4fcf [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" "5c980aec50fa9316c0f4c4aeda8a6da4c8100445f7642242573e1b4d301a4fcf", kill_on_drop: false }` [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling futures v0.1.30 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling subtle v2.4.0 [INFO] [stderr] Compiling subtle v1.0.0 [INFO] [stderr] Compiling opaque-debug v0.2.3 [INFO] [stderr] Compiling tinyvec_macros v0.1.0 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling matches v0.1.8 [INFO] [stderr] Compiling byte-tools v0.3.1 [INFO] [stderr] Compiling percent-encoding v1.0.1 [INFO] [stderr] Compiling serde v1.0.118 [INFO] [stderr] Compiling zeroize v1.2.0 [INFO] [stderr] Compiling safemem v0.3.3 [INFO] [stderr] Compiling ppv-lite86 v0.2.10 [INFO] [stderr] Compiling fake-simd v0.1.2 [INFO] [stderr] Compiling language-tags v0.2.2 [INFO] [stderr] Compiling traitobject v0.1.0 [INFO] [stderr] Compiling base64 v0.12.3 [INFO] [stderr] Compiling hashbrown v0.9.1 [INFO] [stderr] Compiling percent-encoding v2.1.0 [INFO] [stderr] Compiling typeable v0.1.2 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling scoped-tls v0.1.2 [INFO] [stderr] Compiling state v0.4.2 [INFO] [stderr] Compiling smallvec v1.6.0 [INFO] [stderr] Compiling try-lock v0.1.0 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling serde_json v1.0.61 [INFO] [stderr] Compiling slab v0.3.0 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling take v0.1.0 [INFO] [stderr] Compiling smallvec v0.2.1 [INFO] [stderr] Compiling mime v0.3.16 [INFO] [stderr] Compiling itoa v0.4.7 [INFO] [stderr] Compiling yansi v0.5.0 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling pear_codegen v0.1.4 [INFO] [stderr] Compiling indexmap v1.6.1 [INFO] [stderr] Compiling rocket_codegen v0.4.6 [INFO] [stderr] Compiling rocket v0.4.6 [INFO] [stderr] Compiling tinyvec v1.1.0 [INFO] [stderr] Compiling lock_api v0.3.4 [INFO] [stderr] Compiling unicode-bidi v0.3.4 [INFO] [stderr] Compiling block-padding v0.1.5 [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling httparse v1.3.4 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling num_cpus v1.13.0 [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-1375e9df1fa90db2/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: 1.50.0 (2020-12-31) [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: 0x5626954c9247 - std::backtrace_rs::backtrace::libunwind::trace::hcd6e187547b8deec [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stderr] 1: 0x5626954c9247 - std::backtrace_rs::backtrace::trace_unsynchronized::hde10036eb783fbc7 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x5626954c9247 - std::sys_common::backtrace::_print_fmt::h63987b8f86dfc82a [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x5626954c9247 - ::fmt::hc33f3ac4cc9c4196 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x5626954e3a6c - core::fmt::write::hfdcdeb08fb2b3afa [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/fmt/mod.rs:1078:17 [INFO] [stderr] 5: 0x5626954c67a2 - std::io::Write::write_fmt::h83a843778fa2a815 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/io/mod.rs:1519:15 [INFO] [stderr] 6: 0x5626954caf85 - std::sys_common::backtrace::_print::hf179508b01f66878 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x5626954caf85 - std::sys_common::backtrace::print::ha97d11adb39266a6 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x5626954caf85 - std::panicking::default_hook::{{closure}}::h8da9985a98bd1582 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x5626954caada - std::panicking::default_hook::hbc0ee792993c2ef2 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:225:9 [INFO] [stderr] 10: 0x5626954cb721 - std::panicking::rust_panic_with_hook::h9fb9cda33a10f084 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:591:17 [INFO] [stderr] 11: 0x562695490c1a - std::panicking::begin_panic::{{closure}}::h015c1bcdab719551 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:520:9 [INFO] [stderr] 12: 0x562695491078 - std::sys_common::backtrace::__rust_end_short_backtrace::hc7981d46a8bde4b3 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stderr] 13: 0x562695490b57 - std::panicking::begin_panic::h37e59d4c1b176919 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:519:12 [INFO] [stderr] 14: 0x56269548e832 - build_script_build::main::h4105f40fe8310a24 [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.1.4/build.rs:24:13 [INFO] [stderr] 15: 0x56269549082b - core::ops::function::FnOnce::call_once::h409c037d66d10758 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/ops/function.rs:227:5 [INFO] [stderr] 16: 0x5626954910ae - std::sys_common::backtrace::__rust_begin_short_backtrace::h57358e1e8b6815d3 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stderr] 17: 0x5626954906b1 - std::rt::lang_start::{{closure}}::hed6e4ae621715192 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/rt.rs:66:18 [INFO] [stderr] 18: 0x5626954cbb47 - core::ops::function::impls:: for &F>::call_once::hb5ab992a536e3d7c [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/ops/function.rs:259:13 [INFO] [stderr] 19: 0x5626954cbb47 - std::panicking::try::do_call::h1bda883686bc1816 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:379:40 [INFO] [stderr] 20: 0x5626954cbb47 - std::panicking::try::ha7167c079f243e71 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:343:19 [INFO] [stderr] 21: 0x5626954cbb47 - std::panic::catch_unwind::he11c3de53f0b5853 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panic.rs:396:14 [INFO] [stderr] 22: 0x5626954cbb47 - std::rt::lang_start_internal::h45c3666b51d25060 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/rt.rs:51:25 [INFO] [stderr] 23: 0x562695490687 - std::rt::lang_start::h49b5daae25444e14 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/rt.rs:65:5 [INFO] [stderr] 24: 0x56269548efca - main [INFO] [stderr] 25: 0x7fbf644870b3 - __libc_start_main [INFO] [stderr] 26: 0x56269548e0ae - _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" "5c980aec50fa9316c0f4c4aeda8a6da4c8100445f7642242573e1b4d301a4fcf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5c980aec50fa9316c0f4c4aeda8a6da4c8100445f7642242573e1b4d301a4fcf", kill_on_drop: false }` [INFO] [stdout] 5c980aec50fa9316c0f4c4aeda8a6da4c8100445f7642242573e1b4d301a4fcf