[INFO] cloning repository https://github.com/llamicron/lab_grader [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/llamicron/lab_grader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fllamicron%2Flab_grader", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fllamicron%2Flab_grader'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b6ed054bca8d3f20efc7ed995e23197ee089e6eb [INFO] documenting llamicron/lab_grader against beta-2022-05-20 for beta-1.62-rustdoc-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fllamicron%2Flab_grader" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/llamicron/lab_grader on toolchain beta-2022-05-20 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/llamicron/lab_grader [INFO] finished tweaking git repo https://github.com/llamicron/lab_grader [INFO] tweaked toml for git repo https://github.com/llamicron/lab_grader written to /workspace/builds/worker-8/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", 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] f3e7828d366a8f867a974421d404ca4a59346de2931bb5fb4264b34ed8869090 [INFO] running `Command { std: "docker" "start" "-a" "f3e7828d366a8f867a974421d404ca4a59346de2931bb5fb4264b34ed8869090", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f3e7828d366a8f867a974421d404ca4a59346de2931bb5fb4264b34ed8869090", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f3e7828d366a8f867a974421d404ca4a59346de2931bb5fb4264b34ed8869090", kill_on_drop: false }` [INFO] [stdout] f3e7828d366a8f867a974421d404ca4a59346de2931bb5fb4264b34ed8869090 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--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] 7289e848bd9f0068203b4de2459e9b3ca00a0c3e1034d11fae73675abe9eb809 [INFO] running `Command { std: "docker" "start" "-a" "7289e848bd9f0068203b4de2459e9b3ca00a0c3e1034d11fae73675abe9eb809", kill_on_drop: false }` [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling syn v1.0.95 [INFO] [stderr] Compiling yansi v0.5.1 [INFO] [stderr] Compiling serde v1.0.137 [INFO] [stderr] Compiling unicode-bidi v0.3.8 [INFO] [stderr] Checking once_cell v1.12.0 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking regex-syntax v0.6.26 [INFO] [stderr] Checking paris v1.5.13 [INFO] [stderr] Compiling indexmap v1.8.2 [INFO] [stderr] Checking tinyvec v1.6.0 [INFO] [stderr] Checking tracing-core v0.1.26 [INFO] [stderr] Checking http v0.2.7 [INFO] [stderr] Checking base64 v0.9.3 [INFO] [stderr] Checking yaml-rust v0.4.5 [INFO] [stderr] Compiling httparse v1.7.1 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking encoding_rs v0.8.31 [INFO] [stderr] Checking net2 v0.2.37 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking getrandom v0.2.6 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking socket2 v0.3.19 [INFO] [stderr] Checking inotify-sys v0.1.5 [INFO] [stderr] Checking filetime v0.2.16 [INFO] [stderr] Compiling generic-array v0.14.5 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking openssl-sys v0.9.73 [INFO] [stderr] Checking futures-util v0.3.21 [INFO] [stderr] Compiling pear_codegen v0.1.5 [INFO] [stderr] Compiling rocket_codegen v0.4.11 [INFO] [stderr] Compiling rocket v0.4.11 [INFO] [stderr] Checking inotify v0.7.1 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking cipher v0.2.5 [INFO] [stderr] Checking universal-hash v0.4.1 [INFO] [stderr] Checking crypto-mac v0.10.1 [INFO] [stderr] Checking aead v0.3.2 [INFO] [stderr] Checking unicode-normalization v0.1.19 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking http-body v0.3.1 [INFO] [stderr] Checking sha2 v0.9.9 [INFO] [stderr] Compiling digest v0.9.0 [INFO] [stderr] error: failed to run custom build command for `pear_codegen v0.1.5` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/pear_codegen-ea69edfeb5f58249/build-script-build` (exit status: 101) [INFO] [stderr] --- stderr [INFO] [stderr] Error: Pear requires a 'dev' or 'nightly' version of rustc. [INFO] [stderr] Installed version: 1.62.0 (2022-05-19) [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-0.1.5/build.rs:24:13 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x559d78dad17d - std::backtrace_rs::backtrace::libunwind::trace::ha8406fd4a233ad1f [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stderr] 1: 0x559d78dad17d - std::backtrace_rs::backtrace::trace_unsynchronized::h95f26ca4bd23bd0f [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x559d78dad17d - std::sys_common::backtrace::_print_fmt::h9955f0b025c061cd [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/sys_common/backtrace.rs:66:5 [INFO] [stderr] 3: 0x559d78dad17d - ::fmt::h1025ecd2bac85833 [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/sys_common/backtrace.rs:45:22 [INFO] [stderr] 4: 0x559d78dcae1c - core::fmt::write::hd5fa34bae8a7f0ea [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/core/src/fmt/mod.rs:1196:17 [INFO] [stderr] 5: 0x559d78daa631 - std::io::Write::write_fmt::h203cec764662c27d [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/io/mod.rs:1654:15 [INFO] [stderr] 6: 0x559d78dae845 - std::sys_common::backtrace::_print::h330c8fadbab13d8b [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/sys_common/backtrace.rs:48:5 [INFO] [stderr] 7: 0x559d78dae845 - std::sys_common::backtrace::print::h38d4cf1c3e16e656 [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/sys_common/backtrace.rs:35:9 [INFO] [stderr] 8: 0x559d78dae845 - std::panicking::default_hook::{{closure}}::h56cdf194ec124abb [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panicking.rs:295:22 [INFO] [stderr] 9: 0x559d78dae4b9 - std::panicking::default_hook::h9929fdc60733f795 [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panicking.rs:314:9 [INFO] [stderr] 10: 0x559d78daee18 - std::panicking::rust_panic_with_hook::h490228be5a55104d [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panicking.rs:698:17 [INFO] [stderr] 11: 0x559d78d77254 - std::panicking::begin_panic::{{closure}}::h85783e35c5c03586 [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panicking.rs:617:9 [INFO] [stderr] 12: 0x559d78d76e08 - std::sys_common::backtrace::__rust_end_short_backtrace::hb8365ffa6b8b57ef [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/sys_common/backtrace.rs:138:18 [INFO] [stderr] 13: 0x559d78d771a4 - std::panicking::begin_panic::h621a2ff58ac24c33 [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panicking.rs:616:12 [INFO] [stderr] 14: 0x559d78d79ccc - build_script_build::main::h0c943cbd4459e46f [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.1.5/build.rs:24:13 [INFO] [stderr] 15: 0x559d78d769eb - core::ops::function::FnOnce::call_once::h5e8a39fc775dcffd [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/core/src/ops/function.rs:248:5 [INFO] [stderr] 16: 0x559d78d76e4e - std::sys_common::backtrace::__rust_begin_short_backtrace::hc58c6bee026b1327 [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/sys_common/backtrace.rs:122:18 [INFO] [stderr] 17: 0x559d78d76ee1 - std::rt::lang_start::{{closure}}::h0d97e16248a86ecf [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/rt.rs:145:18 [INFO] [stderr] 18: 0x559d78da708e - core::ops::function::impls:: for &F>::call_once::h9c80b603d656db3f [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/core/src/ops/function.rs:280:13 [INFO] [stderr] 19: 0x559d78da708e - std::panicking::try::do_call::h86b1dd6fd2903147 [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panicking.rs:492:40 [INFO] [stderr] 20: 0x559d78da708e - std::panicking::try::h06cba322e163361a [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panicking.rs:456:19 [INFO] [stderr] 21: 0x559d78da708e - std::panic::catch_unwind::h77fc4ef3c419c34e [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panic.rs:137:14 [INFO] [stderr] 22: 0x559d78da708e - std::rt::lang_start_internal::{{closure}}::h6786ee70f1cf45dc [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/rt.rs:128:48 [INFO] [stderr] 23: 0x559d78da708e - std::panicking::try::do_call::h682a3324f06cc1bc [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panicking.rs:492:40 [INFO] [stderr] 24: 0x559d78da708e - std::panicking::try::h09ce465b693a7cf9 [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panicking.rs:456:19 [INFO] [stderr] 25: 0x559d78da708e - std::panic::catch_unwind::h5eb4cb244476317c [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panic.rs:137:14 [INFO] [stderr] 26: 0x559d78da708e - std::rt::lang_start_internal::hba2d4a4771a618dc [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/rt.rs:128:20 [INFO] [stderr] 27: 0x559d78d76eb0 - std::rt::lang_start::hfa9678a663bff7d5 [INFO] [stderr] at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/rt.rs:144:17 [INFO] [stderr] 28: 0x559d78d7a19c - main [INFO] [stderr] 29: 0x7f7d2103e0b3 - __libc_start_main [INFO] [stderr] 30: 0x559d78d749fe - _start [INFO] [stderr] 31: 0x0 - [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "7289e848bd9f0068203b4de2459e9b3ca00a0c3e1034d11fae73675abe9eb809", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7289e848bd9f0068203b4de2459e9b3ca00a0c3e1034d11fae73675abe9eb809", kill_on_drop: false }` [INFO] [stdout] 7289e848bd9f0068203b4de2459e9b3ca00a0c3e1034d11fae73675abe9eb809