[INFO] fetching crate genco-macros 0.5.0-alpha.15...
[INFO] testing genco-macros-0.5.0-alpha.15 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate genco-macros 0.5.0-alpha.15 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate genco-macros 0.5.0-alpha.15 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate genco-macros 0.5.0-alpha.15
[INFO] finished tweaking crates.io crate genco-macros 0.5.0-alpha.15
[INFO] tweaked toml for crates.io crate genco-macros 0.5.0-alpha.15 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded genco-macros v0.5.0-alpha.15
[INFO] [stderr]   Downloaded genco v0.5.0-alpha.15
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6e29532d5661a456993b3d91a1abe19447ae73d5e33ce6c7aef2e83c13a4d8ea
[INFO] running `"docker" "start" "-a" "6e29532d5661a456993b3d91a1abe19447ae73d5e33ce6c7aef2e83c13a4d8ea"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling genco-macros v0.5.0-alpha.15 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.28s
[INFO] running `"docker" "inspect" "6e29532d5661a456993b3d91a1abe19447ae73d5e33ce6c7aef2e83c13a4d8ea"`
[INFO] running `"docker" "rm" "-f" "6e29532d5661a456993b3d91a1abe19447ae73d5e33ce6c7aef2e83c13a4d8ea"`
[INFO] [stdout] 6e29532d5661a456993b3d91a1abe19447ae73d5e33ce6c7aef2e83c13a4d8ea
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stdout] a3a4baa2d722f7f7ffb5ea1e03e7575cbbfeb9107cd33bc8293643ca918c8143
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "a3a4baa2d722f7f7ffb5ea1e03e7575cbbfeb9107cd33bc8293643ca918c8143"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling genco-macros v0.5.0-alpha.15
[INFO] [stderr]    Compiling genco v0.5.0-alpha.15
[INFO] [stderr] error: proc macro panicked
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.5.0-alpha.15/src/lang/csharp/mod.rs:615:13
[INFO] [stderr]     |
[INFO] [stderr] 615 | /             quote_in! { toks =>
[INFO] [stderr] 616 | |                 namespace #namespace {
[INFO] [stderr] 617 | |                     #tokens
[INFO] [stderr] 618 | |                 }
[INFO] [stderr] 619 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: message: attempt to subtract with overflow
[INFO] [stderr] 
[INFO] [stderr] error: proc macro panicked
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.5.0-alpha.15/src/lang/js.rs:230:13
[INFO] [stderr]     |
[INFO] [stderr] 230 | /             quote_in! { output =>
[INFO] [stderr] 231 | |                 import #{ *tokens => {
[INFO] [stderr] 232 | |                     if let Some(default) = module.default_import {
[INFO] [stderr] 233 | |                         tokens.append(ItemStr::from(default));
[INFO] [stderr] ...   |
[INFO] [stderr] 237 | |                 }}{#names,*} from #(name.quoted());
[INFO] [stderr] 238 | |             };
[INFO] [stderr]     | |______________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: message: attempt to subtract with overflow
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.5.0-alpha.15/src/lib.rs:176:1
[INFO] [stderr]     |
[INFO] [stderr] 176 | #![feature(proc_macro_hygiene)]
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `genco`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a3a4baa2d722f7f7ffb5ea1e03e7575cbbfeb9107cd33bc8293643ca918c8143"`
[INFO] running `"docker" "rm" "-f" "a3a4baa2d722f7f7ffb5ea1e03e7575cbbfeb9107cd33bc8293643ca918c8143"`
[INFO] [stdout] a3a4baa2d722f7f7ffb5ea1e03e7575cbbfeb9107cd33bc8293643ca918c8143