[INFO] fetching crate lab_grader 0.11.0... [INFO] testing lab_grader-0.11.0 against beta-2021-01-01 for beta-1.50-1 [INFO] extracting crate lab_grader 0.11.0 into /workspace/builds/worker-1/source [INFO] validating manifest of crates.io crate lab_grader 0.11.0 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 crates.io crate lab_grader 0.11.0 [INFO] finished tweaking crates.io crate lab_grader 0.11.0 [INFO] tweaked toml for crates.io crate lab_grader 0.11.0 written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate crates.io crate lab_grader 0.11.0 already has a lockfile, it will not be regenerated [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] Downloading crates ... [INFO] [stderr] Downloaded cookie v0.11.3 [INFO] [stderr] Downloaded universal-hash v0.3.0 [INFO] [stderr] Downloaded ghash v0.2.3 [INFO] [stderr] Downloaded aes-gcm v0.5.0 [INFO] [stderr] Downloaded pear v0.1.4 [INFO] [stderr] Downloaded hkdf v0.8.0 [INFO] [stderr] Downloaded rocket_http v0.4.5 [INFO] [stderr] Downloaded polyval v0.3.3 [INFO] [stderr] Downloaded rocket_codegen v0.4.5 [INFO] [stderr] Downloaded aead v0.2.0 [INFO] [stderr] Downloaded rocket v0.4.5 [INFO] [stderr] Downloaded rocket_contrib v0.4.5 [INFO] [stderr] Downloaded pear_codegen v0.1.4 [INFO] [stderr] Downloaded serde_yaml v0.8.13 [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] f8178f32b63ae4a07294981951b42b9ce0484aba792e4324f702b1a3812bdfc4 [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" "f8178f32b63ae4a07294981951b42b9ce0484aba792e4324f702b1a3812bdfc4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f8178f32b63ae4a07294981951b42b9ce0484aba792e4324f702b1a3812bdfc4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f8178f32b63ae4a07294981951b42b9ce0484aba792e4324f702b1a3812bdfc4", kill_on_drop: false }` [INFO] [stdout] f8178f32b63ae4a07294981951b42b9ce0484aba792e4324f702b1a3812bdfc4 [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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 4dabcb65a4c151da5310f21364be7bc0a5514b4b0b5890ef291fde459a5bd45a [INFO] running `Command { std: "docker" "start" "-a" "4dabcb65a4c151da5310f21364be7bc0a5514b4b0b5890ef291fde459a5bd45a", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.33 [INFO] [stderr] Compiling subtle v2.2.3 [INFO] [stderr] Compiling zeroize v1.1.0 [INFO] [stderr] Compiling pear_codegen v0.1.4 [INFO] [stderr] Compiling rocket_codegen v0.4.5 [INFO] [stderr] Compiling rocket v0.4.5 [INFO] [stderr] Compiling inotify-sys v0.1.3 [INFO] [stderr] Compiling filetime v0.2.10 [INFO] [stderr] Compiling dirs v1.0.5 [INFO] [stderr] Compiling csv-core v0.1.10 [INFO] [stderr] Compiling openssl-sys v0.9.58 [INFO] [stderr] Compiling block-cipher-trait v0.6.2 [INFO] [stderr] Compiling aead v0.2.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling tokio v0.2.21 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling hyper v0.10.16 [INFO] [stderr] Compiling universal-hash v0.3.0 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling aes-soft v0.3.3 [INFO] [stderr] Compiling term v0.5.2 [INFO] [stderr] Compiling aes v0.3.2 [INFO] [stderr] Compiling openssl v0.10.30 [INFO] [stderr] Compiling polyval v0.3.3 [INFO] [stderr] Compiling notify v4.0.15 [INFO] [stderr] error: failed to run custom build command for `rocket v0.4.5` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/rocket-f9e2839b92897a61/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] Error: Rocket (core) requires a 'dev' or 'nightly' version of rustc. [INFO] [stderr] Installed version: 1.50.0 (2020-12-31) [INFO] [stderr] Minimum required: 1.35.0-nightly (2019-04-05) [INFO] [stderr] See the getting started guide (https://rocket.rs/v0.5/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-0.4.5/build.rs:29:13 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x561f69701417 - 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: 0x561f69701417 - 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: 0x561f69701417 - std::sys_common::backtrace::_print_fmt::h63987b8f86dfc82a [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x561f69701417 - ::fmt::hc33f3ac4cc9c4196 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x561f6971bc3c - core::fmt::write::hfdcdeb08fb2b3afa [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/fmt/mod.rs:1078:17 [INFO] [stderr] 5: 0x561f696fe972 - std::io::Write::write_fmt::h83a843778fa2a815 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/io/mod.rs:1519:15 [INFO] [stderr] 6: 0x561f69703155 - std::sys_common::backtrace::_print::hf179508b01f66878 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x561f69703155 - std::sys_common::backtrace::print::ha97d11adb39266a6 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x561f69703155 - std::panicking::default_hook::{{closure}}::h8da9985a98bd1582 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x561f69702caa - std::panicking::default_hook::hbc0ee792993c2ef2 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:225:9 [INFO] [stderr] 10: 0x561f697038f1 - std::panicking::rust_panic_with_hook::h9fb9cda33a10f084 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:591:17 [INFO] [stderr] 11: 0x561f696c8dea - std::panicking::begin_panic::{{closure}}::h37cc74312277c9b9 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:520:9 [INFO] [stderr] 12: 0x561f696c9248 - std::sys_common::backtrace::__rust_end_short_backtrace::hd248a390dc7df625 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stderr] 13: 0x561f696c8d27 - std::panicking::begin_panic::he75d336ab1ae76bb [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:519:12 [INFO] [stderr] 14: 0x561f696c6a0c - build_script_build::main::h1394e146529668ae [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.4.5/build.rs:29:13 [INFO] [stderr] 15: 0x561f696c89cb - core::ops::function::FnOnce::call_once::hd822af559f8b5d00 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/ops/function.rs:227:5 [INFO] [stderr] 16: 0x561f696c927e - std::sys_common::backtrace::__rust_begin_short_backtrace::h6ba80117914b0b51 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stderr] 17: 0x561f696c8851 - std::rt::lang_start::{{closure}}::h1e4d311b39c8423d [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/rt.rs:66:18 [INFO] [stderr] 18: 0x561f69703d17 - 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: 0x561f69703d17 - std::panicking::try::do_call::h1bda883686bc1816 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:379:40 [INFO] [stderr] 20: 0x561f69703d17 - std::panicking::try::ha7167c079f243e71 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:343:19 [INFO] [stderr] 21: 0x561f69703d17 - std::panic::catch_unwind::he11c3de53f0b5853 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panic.rs:396:14 [INFO] [stderr] 22: 0x561f69703d17 - std::rt::lang_start_internal::h45c3666b51d25060 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/rt.rs:51:25 [INFO] [stderr] 23: 0x561f696c8827 - std::rt::lang_start::h34581f019b36137e [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/rt.rs:65:5 [INFO] [stderr] 24: 0x561f696c719a - main [INFO] [stderr] 25: 0x7f91791310b3 - __libc_start_main [INFO] [stderr] 26: 0x561f696c60ae - _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" "4dabcb65a4c151da5310f21364be7bc0a5514b4b0b5890ef291fde459a5bd45a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4dabcb65a4c151da5310f21364be7bc0a5514b4b0b5890ef291fde459a5bd45a", kill_on_drop: false }` [INFO] [stdout] 4dabcb65a4c151da5310f21364be7bc0a5514b4b0b5890ef291fde459a5bd45a