[INFO] cloning repository https://github.com/mchaver/digit-recognition [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mchaver/digit-recognition" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmchaver%2Fdigit-recognition", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmchaver%2Fdigit-recognition'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a605df4d31511e5bde035fff17c55835c0e19e3f [INFO] testing mchaver/digit-recognition against 1.45.2 for beta-1.46-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmchaver%2Fdigit-recognition" "/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/mchaver/digit-recognition 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 git repo https://github.com/mchaver/digit-recognition [INFO] finished tweaking git repo https://github.com/mchaver/digit-recognition [INFO] tweaked toml for git repo https://github.com/mchaver/digit-recognition written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/mchaver/digit-recognition 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-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" "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] 7b092fbca816fb2523bae89d47e52964aaba4df192d605261899a4d892d887f9 [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" "7b092fbca816fb2523bae89d47e52964aaba4df192d605261899a4d892d887f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7b092fbca816fb2523bae89d47e52964aaba4df192d605261899a4d892d887f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7b092fbca816fb2523bae89d47e52964aaba4df192d605261899a4d892d887f9", kill_on_drop: false }` [INFO] [stdout] 7b092fbca816fb2523bae89d47e52964aaba4df192d605261899a4d892d887f9 [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" "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] e29530c6a53e4d418cff88a4f068f09fdfc7858341fcf160578bd5cbcc71adb7 [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" "e29530c6a53e4d418cff88a4f068f09fdfc7858341fcf160578bd5cbcc71adb7", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling cfg-if v0.1.3 [INFO] [stderr] Compiling libc v0.2.42 [INFO] [stderr] Compiling nodrop v0.1.12 [INFO] [stderr] Compiling lazy_static v1.0.1 [INFO] [stderr] Compiling version_check v0.1.3 [INFO] [stderr] Compiling rayon-core v1.4.0 [INFO] [stderr] Compiling byteorder v1.2.3 [INFO] [stderr] Compiling yansi v0.4.0 [INFO] [stderr] Compiling num-traits v0.2.4 [INFO] [stderr] Compiling matches v0.1.6 [INFO] [stderr] Compiling serde v1.0.66 [INFO] [stderr] Compiling safemem v0.2.0 [INFO] [stderr] Compiling gcc v0.3.54 [INFO] [stderr] Compiling num-integer v0.1.38 [INFO] [stderr] Compiling lazy_static v0.2.11 [INFO] [stderr] Compiling untrusted v0.5.1 [INFO] [stderr] Compiling traitobject v0.1.0 [INFO] [stderr] Compiling typeable v0.1.2 [INFO] [stderr] Compiling httparse v1.2.4 [INFO] [stderr] Compiling adler32 v1.0.2 [INFO] [stderr] Compiling language-tags v0.2.2 [INFO] [stderr] Compiling ordermap v0.2.13 [INFO] [stderr] Compiling smallvec v0.6.2 [INFO] [stderr] Compiling state v0.4.1 [INFO] [stderr] Compiling pear v0.0.17 [INFO] [stderr] Compiling bitflags v1.0.3 [INFO] [stderr] Compiling dtoa v0.4.2 [INFO] [stderr] Compiling itoa v0.4.1 [INFO] [stderr] Compiling rand_core v0.2.1 [INFO] [stderr] Compiling proc-macro2 v0.4.6 [INFO] [stderr] Compiling crossbeam-utils v0.2.2 [INFO] [stderr] Compiling log v0.4.2 [INFO] [stderr] Compiling arrayvec v0.4.7 [INFO] [stderr] Compiling unicode-bidi v0.3.4 [INFO] [stderr] Compiling inflate v0.4.2 [INFO] [stderr] Compiling base64 v0.6.0 [INFO] [stderr] Compiling base64 v0.9.2 [INFO] [stderr] Compiling deflate v0.7.18 [INFO] [stderr] Compiling gif v0.10.0 [INFO] [stderr] Compiling num_cpus v1.8.0 [INFO] [stderr] Compiling rand v0.4.2 [INFO] [stderr] Compiling time v0.1.40 [INFO] [stderr] Compiling isatty v0.1.8 [INFO] [stderr] Compiling memchr v2.0.1 [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Compiling pear_codegen v0.0.17 [INFO] [stderr] Compiling rocket v0.3.12 [INFO] [stderr] Compiling rocket_codegen v0.3.12 [INFO] [stderr] Compiling rand v0.5.1 [INFO] [stderr] Compiling log v0.3.9 [INFO] [stderr] Compiling crossbeam-epoch v0.3.1 [INFO] [stderr] Compiling quote v0.6.3 [INFO] [stderr] Compiling idna v0.1.4 [INFO] [stderr] error: failed to run custom build command for `pear_codegen v0.0.17` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/pear_codegen-63183a65541897df/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] Error: Pear requires a nightly or dev version of Rust. [INFO] [stderr] Installed version is: 1.45.2 (2020-07-31). Minimum required: 1.27.0-nightly (2018-04-14). [INFO] [stderr] thread 'main' panicked at 'Aborting compilation due to incompatible compiler.', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.17/build.rs:31:13 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x563efb821ec5 - 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: 0x563efb821ec5 - 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: 0x563efb821ec5 - std::sys_common::backtrace::_print_fmt::hfec93740f7294682 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x563efb821ec5 - ::fmt::h5fe20777f4174074 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x563efb843dac - core::fmt::write::he14c3177144df275 [INFO] [stderr] at src/libcore/fmt/mod.rs:1076 [INFO] [stderr] 5: 0x563efb81f5a3 - std::io::Write::write_fmt::h8e26323bfab8bcc5 [INFO] [stderr] at src/libstd/io/mod.rs:1537 [INFO] [stderr] 6: 0x563efb8243d0 - std::sys_common::backtrace::_print::h9cfa4c87526ba064 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x563efb8243d0 - std::sys_common::backtrace::print::h94936584848b3272 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x563efb8243d0 - std::panicking::default_hook::{{closure}}::h733b20cc9b496e46 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x563efb82411c - std::panicking::default_hook::h556d8cff6c12a651 [INFO] [stderr] at src/libstd/panicking.rs:218 [INFO] [stderr] 10: 0x563efb8249b7 - std::panicking::rust_panic_with_hook::ha0c7ca5b39baa9d5 [INFO] [stderr] at src/libstd/panicking.rs:486 [INFO] [stderr] 11: 0x563efb7fda55 - std::panicking::begin_panic::h1471d24d57b009e1 [INFO] [stderr] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/libstd/panicking.rs:410 [INFO] [stderr] 12: 0x563efb7fb836 - build_script_build::main::hdc6d88e49c08f1bd [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.17/build.rs:31 [INFO] [stderr] 13: 0x563efb7fdfcb - std::rt::lang_start::{{closure}}::h6ec418139b28f739 [INFO] [stderr] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/libstd/rt.rs:67 [INFO] [stderr] 14: 0x563efb824d88 - std::rt::lang_start_internal::{{closure}}::hefb489d56a389b75 [INFO] [stderr] at src/libstd/rt.rs:52 [INFO] [stderr] 15: 0x563efb824d88 - std::panicking::try::do_call::hb2bfa58b743656f1 [INFO] [stderr] at src/libstd/panicking.rs:297 [INFO] [stderr] 16: 0x563efb824d88 - std::panicking::try::haaa85a89ce3784c3 [INFO] [stderr] at src/libstd/panicking.rs:274 [INFO] [stderr] 17: 0x563efb824d88 - std::panic::catch_unwind::h49baa277f74e60cb [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 18: 0x563efb824d88 - std::rt::lang_start_internal::h7aa2f6739b31fe58 [INFO] [stderr] at src/libstd/rt.rs:51 [INFO] [stderr] 19: 0x563efb7fdfa7 - std::rt::lang_start::h06a451adbccb0780 [INFO] [stderr] at /rustc/d3fb005a39e62501b8b0b356166e515ae24e2e54/src/libstd/rt.rs:67 [INFO] [stderr] 20: 0x563efb7fc6da - main [INFO] [stderr] 21: 0x7ffa92d840b3 - __libc_start_main [INFO] [stderr] 22: 0x563efb7fb17e - _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" "e29530c6a53e4d418cff88a4f068f09fdfc7858341fcf160578bd5cbcc71adb7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e29530c6a53e4d418cff88a4f068f09fdfc7858341fcf160578bd5cbcc71adb7", kill_on_drop: false }` [INFO] [stdout] e29530c6a53e4d418cff88a4f068f09fdfc7858341fcf160578bd5cbcc71adb7