[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] testing llamicron/lab_grader against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fllamicron%2Flab_grader" "/workspace/builds/worker-117/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-117/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/llamicron/lab_grader on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-117/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-2022-04-10" "fetch" "--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-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b7916604efd1c5291b5a9a101de0ffb6bf2552828f9ba261dc700d7c9f0ee96e [INFO] running `Command { std: "docker" "start" "-a" "b7916604efd1c5291b5a9a101de0ffb6bf2552828f9ba261dc700d7c9f0ee96e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b7916604efd1c5291b5a9a101de0ffb6bf2552828f9ba261dc700d7c9f0ee96e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b7916604efd1c5291b5a9a101de0ffb6bf2552828f9ba261dc700d7c9f0ee96e", kill_on_drop: false }` [INFO] [stdout] b7916604efd1c5291b5a9a101de0ffb6bf2552828f9ba261dc700d7c9f0ee96e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2a64b58703226d293e1c697601d819e7448a5d39151761f8d3220d628082b2ef [INFO] running `Command { std: "docker" "start" "-a" "2a64b58703226d293e1c697601d819e7448a5d39151761f8d3220d628082b2ef", kill_on_drop: false }` [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Compiling libc v0.2.123 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling log v0.4.16 [INFO] [stderr] Compiling typenum v1.15.0 [INFO] [stderr] Compiling proc-macro2 v1.0.37 [INFO] [stderr] Compiling syn v1.0.91 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling subtle v2.4.1 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling slab v0.4.6 [INFO] [stderr] Compiling yansi v0.5.1 [INFO] [stderr] Compiling matches v0.1.9 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling futures-core v0.3.21 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling httparse v1.7.0 [INFO] [stderr] Compiling unicode-bidi v0.3.7 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling cc v1.0.73 [INFO] [stderr] Compiling pkg-config v0.3.25 [INFO] [stderr] Compiling itoa v1.0.1 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Compiling cpuid-bool v0.2.0 [INFO] [stderr] Compiling bytes v0.5.6 [INFO] [stderr] Compiling futures-task v0.3.21 [INFO] [stderr] Compiling ppv-lite86 v0.2.16 [INFO] [stderr] Compiling pin-project-lite v0.2.8 [INFO] [stderr] Compiling bytes v1.1.0 [INFO] [stderr] Compiling safemem v0.3.3 [INFO] [stderr] Compiling foreign-types-shared v0.1.1 [INFO] [stderr] Compiling percent-encoding v1.0.1 [INFO] [stderr] Compiling openssl v0.10.38 [INFO] [stderr] Compiling cpufeatures v0.2.2 [INFO] [stderr] Compiling futures-util v0.3.21 [INFO] [stderr] Compiling futures-io v0.3.21 [INFO] [stderr] Compiling ryu v1.0.9 [INFO] [stderr] Compiling native-tls v0.2.10 [INFO] [stderr] Compiling futures-channel v0.3.21 [INFO] [stderr] Compiling futures-sink v0.3.21 [INFO] [stderr] Compiling language-tags v0.2.2 [INFO] [stderr] Compiling traitobject v0.1.0 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling typeable v0.1.2 [INFO] [stderr] Compiling state v0.4.2 [INFO] [stderr] Compiling openssl-probe v0.1.5 [INFO] [stderr] Compiling serde_json v1.0.79 [INFO] [stderr] Compiling try-lock v0.2.3 [INFO] [stderr] Compiling smallvec v1.8.0 [INFO] [stderr] Compiling httpdate v0.3.2 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling tower-service v0.3.1 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling encoding_rs v0.8.31 [INFO] [stderr] Compiling mime v0.3.16 [INFO] [stderr] Compiling anyhow v1.0.56 [INFO] [stderr] Compiling ipnet v2.4.0 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling paris v1.5.11 [INFO] [stderr] Compiling tinyvec v1.5.1 [INFO] [stderr] Compiling tracing-core v0.1.26 [INFO] [stderr] Compiling yaml-rust v0.4.5 [INFO] [stderr] Compiling generic-array v0.14.5 [INFO] [stderr] Compiling unicase v2.6.0 [INFO] [stderr] Compiling form_urlencoded v1.0.1 [INFO] [stderr] Compiling foreign-types v0.3.2 [INFO] [stderr] Compiling http v0.2.6 [INFO] [stderr] Compiling base64 v0.9.3 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Compiling pear_codegen v0.1.4 [INFO] [stderr] Compiling rocket_codegen v0.4.10 [INFO] [stderr] Compiling rocket v0.4.10 [INFO] [stderr] Compiling indexmap v1.8.1 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling openssl-sys v0.9.72 [INFO] [stderr] Compiling unicode-normalization v0.1.19 [INFO] [stderr] error: failed to run custom build command for `rocket v0.4.10` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/rocket-5d821fb2ab8a53af/build-script-build` (exit status: 101) [INFO] [stderr] --- stderr [INFO] [stderr] Error: Rocket (core) requires a 'dev' or 'nightly' version of rustc. [INFO] [stderr] Installed version: 1.61.0 (2022-04-09) [INFO] [stderr] Minimum required: 1.54.0-nightly (2021-05-18) [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-0.4.10/build.rs:29:13 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x560bbf66771d - std::backtrace_rs::backtrace::libunwind::trace::ha359b7f0090e2792 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stderr] 1: 0x560bbf66771d - std::backtrace_rs::backtrace::trace_unsynchronized::h0584631f25c1d70e [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x560bbf66771d - std::sys_common::backtrace::_print_fmt::hdadffd97d279ff14 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:66:5 [INFO] [stderr] 3: 0x560bbf66771d - ::fmt::h26f189e611080a74 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:45:22 [INFO] [stderr] 4: 0x560bbf684fbc - core::fmt::write::hfb5d11dfe037e8b7 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/fmt/mod.rs:1194:17 [INFO] [stderr] 5: 0x560bbf664d01 - std::io::Write::write_fmt::ha30651f608022a46 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/io/mod.rs:1655:15 [INFO] [stderr] 6: 0x560bbf668ec5 - std::sys_common::backtrace::_print::h7a0e44402913ba60 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:48:5 [INFO] [stderr] 7: 0x560bbf668ec5 - std::sys_common::backtrace::print::h9767dc455a84e728 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:35:9 [INFO] [stderr] 8: 0x560bbf668ec5 - std::panicking::default_hook::{{closure}}::h60afd6c8b12988ad [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:295:22 [INFO] [stderr] 9: 0x560bbf668b79 - std::panicking::default_hook::ha7b9bac6813f9d21 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:314:9 [INFO] [stderr] 10: 0x560bbf669412 - std::panicking::rust_panic_with_hook::h7b117a162a6f8664 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:698:17 [INFO] [stderr] 11: 0x560bbf631b54 - std::panicking::begin_panic::{{closure}}::ha06514d4ff46ca86 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:617:9 [INFO] [stderr] 12: 0x560bbf6319a8 - std::sys_common::backtrace::__rust_end_short_backtrace::hcf24b593dfcb0676 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:138:18 [INFO] [stderr] 13: 0x560bbf631aa4 - std::panicking::begin_panic::h50ccbf1fc031bff9 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:616:12 [INFO] [stderr] 14: 0x560bbf633a41 - build_script_build::main::h9f5d13f3e410bcb6 [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.4.10/build.rs:29:13 [INFO] [stderr] 15: 0x560bbf631bfb - core::ops::function::FnOnce::call_once::hab1ee61887fcbbbb [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/ops/function.rs:227:5 [INFO] [stderr] 16: 0x560bbf6319ee - std::sys_common::backtrace::__rust_begin_short_backtrace::h4521f4013821cc72 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:122:18 [INFO] [stderr] 17: 0x560bbf631051 - std::rt::lang_start::{{closure}}::h2dabc80ee6de8579 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/rt.rs:145:18 [INFO] [stderr] 18: 0x560bbf66170e - core::ops::function::impls:: for &F>::call_once::hae31cd38f966dcbc [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/ops/function.rs:259:13 [INFO] [stderr] 19: 0x560bbf66170e - std::panicking::try::do_call::h4a4c12a32b804624 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:492:40 [INFO] [stderr] 20: 0x560bbf66170e - std::panicking::try::h87f80f5db1929b60 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:456:19 [INFO] [stderr] 21: 0x560bbf66170e - std::panic::catch_unwind::hbc53afd5a2bdc195 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panic.rs:137:14 [INFO] [stderr] 22: 0x560bbf66170e - std::rt::lang_start_internal::{{closure}}::h2e62ddd08385fac8 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/rt.rs:128:48 [INFO] [stderr] 23: 0x560bbf66170e - std::panicking::try::do_call::h04b85b79b362213e [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:492:40 [INFO] [stderr] 24: 0x560bbf66170e - std::panicking::try::h428fba6a4941d8ed [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:456:19 [INFO] [stderr] 25: 0x560bbf66170e - std::panic::catch_unwind::hd73c90258412492e [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panic.rs:137:14 [INFO] [stderr] 26: 0x560bbf66170e - std::rt::lang_start_internal::h26255896a96668b5 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/rt.rs:128:20 [INFO] [stderr] 27: 0x560bbf631020 - std::rt::lang_start::h6c74248dd0553c48 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/rt.rs:144:17 [INFO] [stderr] 28: 0x560bbf633f0c - main [INFO] [stderr] 29: 0x7f169a8b90b3 - __libc_start_main [INFO] [stderr] 30: 0x560bbf62f65e - _start [INFO] [stderr] 31: 0x0 - [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "2a64b58703226d293e1c697601d819e7448a5d39151761f8d3220d628082b2ef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2a64b58703226d293e1c697601d819e7448a5d39151761f8d3220d628082b2ef", kill_on_drop: false }` [INFO] [stdout] 2a64b58703226d293e1c697601d819e7448a5d39151761f8d3220d628082b2ef