[INFO] crate lab_grader 0.11.0 is already in cache [INFO] testing lab_grader-0.11.0 against 1.45.2 for beta-1.46-1 [INFO] extracting crate lab_grader 0.11.0 into /workspace/builds/worker-3/source [INFO] validating manifest of crates.io crate lab_grader 0.11.0 on toolchain 1.45.2 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "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-3/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" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 851ba5b8f0ae8f5bcd2fd8daf398ff5c346f39d85c400624432ffa5ff9b58b1b [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" "851ba5b8f0ae8f5bcd2fd8daf398ff5c346f39d85c400624432ffa5ff9b58b1b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "851ba5b8f0ae8f5bcd2fd8daf398ff5c346f39d85c400624432ffa5ff9b58b1b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "851ba5b8f0ae8f5bcd2fd8daf398ff5c346f39d85c400624432ffa5ff9b58b1b", kill_on_drop: false }` [INFO] [stdout] 851ba5b8f0ae8f5bcd2fd8daf398ff5c346f39d85c400624432ffa5ff9b58b1b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 29ac12783ab9b634860c1f48950540d5d50584ebb23d50403f0f0cf3d44c205a [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" "29ac12783ab9b634860c1f48950540d5d50584ebb23d50403f0f0cf3d44c205a", kill_on_drop: false }` [INFO] [stderr] Compiling bytes v0.5.5 [INFO] [stderr] Compiling encode_unicode v0.3.6 [INFO] [stderr] Compiling ansi_term v0.12.1 [INFO] [stderr] Compiling openssl-sys v0.9.58 [INFO] [stderr] Compiling addr2line v0.12.2 [INFO] [stderr] Compiling miniz_oxide v0.3.7 [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 iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.34 [INFO] [stderr] Compiling time v0.1.43 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling inotify-sys v0.1.3 [INFO] [stderr] Compiling socket2 v0.3.12 [INFO] [stderr] Compiling want v0.3.0 [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-701f7a77609a7f3e/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: 1.45.2 (2020-07-31) [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: 0x556210c37f55 - backtrace::backtrace::libunwind::trace::ha215bbf14e328799 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stderr] 1: 0x556210c37f55 - backtrace::backtrace::trace_unsynchronized::h3384b099b135857a [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x556210c37f55 - std::sys_common::backtrace::_print_fmt::hfec93740f7294682 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x556210c37f55 - ::fmt::h5fe20777f4174074 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x556210c59e3c - core::fmt::write::he14c3177144df275 [INFO] [stderr] at src/libcore/fmt/mod.rs:1076 [INFO] [stderr] 5: 0x556210c35633 - std::io::Write::write_fmt::h8e26323bfab8bcc5 [INFO] [stderr] at src/libstd/io/mod.rs:1537 [INFO] [stderr] 6: 0x556210c3a460 - std::sys_common::backtrace::_print::h9cfa4c87526ba064 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x556210c3a460 - std::sys_common::backtrace::print::h94936584848b3272 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x556210c3a460 - std::panicking::default_hook::{{closure}}::h733b20cc9b496e46 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x556210c3a1ac - std::panicking::default_hook::h556d8cff6c12a651 [INFO] [stderr] at src/libstd/panicking.rs:218 [INFO] [stderr] 10: 0x556210c3aa47 - std::panicking::rust_panic_with_hook::ha0c7ca5b39baa9d5 [INFO] [stderr] at src/libstd/panicking.rs:486 [INFO] [stderr] 11: 0x556210c13e15 - std::panicking::begin_panic::h44f925bed2431135 [INFO] [stderr] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/libstd/panicking.rs:410 [INFO] [stderr] 12: 0x556210c0f995 - build_script_build::main::h7d095cfe5697f4da [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.1.4/build.rs:24 [INFO] [stderr] 13: 0x556210c1158b - std::rt::lang_start::{{closure}}::h319ab24e7d8ebcc2 [INFO] [stderr] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/libstd/rt.rs:67 [INFO] [stderr] 14: 0x556210c3ae18 - std::rt::lang_start_internal::{{closure}}::hefb489d56a389b75 [INFO] [stderr] at src/libstd/rt.rs:52 [INFO] [stderr] 15: 0x556210c3ae18 - std::panicking::try::do_call::hb2bfa58b743656f1 [INFO] [stderr] at src/libstd/panicking.rs:297 [INFO] [stderr] 16: 0x556210c3ae18 - std::panicking::try::haaa85a89ce3784c3 [INFO] [stderr] at src/libstd/panicking.rs:274 [INFO] [stderr] 17: 0x556210c3ae18 - std::panic::catch_unwind::h49baa277f74e60cb [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 18: 0x556210c3ae18 - std::rt::lang_start_internal::h7aa2f6739b31fe58 [INFO] [stderr] at src/libstd/rt.rs:51 [INFO] [stderr] 19: 0x556210c11567 - std::rt::lang_start::h052f6bdc9697c060 [INFO] [stderr] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/libstd/rt.rs:67 [INFO] [stderr] 20: 0x556210c1019a - main [INFO] [stderr] 21: 0x7f56ee92c0b3 - __libc_start_main [INFO] [stderr] 22: 0x556210c0f17e - _start [INFO] [stderr] 23: 0x0 - [INFO] [stderr] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "29ac12783ab9b634860c1f48950540d5d50584ebb23d50403f0f0cf3d44c205a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "29ac12783ab9b634860c1f48950540d5d50584ebb23d50403f0f0cf3d44c205a", kill_on_drop: false }` [INFO] [stdout] 29ac12783ab9b634860c1f48950540d5d50584ebb23d50403f0f0cf3d44c205a