[INFO] updating cached repository https://github.com/ubnt-intrepid/finchers-graphql-example
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7f65e5d0af3a079cb74e479766d3f6c40b4bf90c
[INFO] testing ubnt-intrepid/finchers-graphql-example against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fubnt-intrepid%2Ffinchers-graphql-example" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ubnt-intrepid/finchers-graphql-example 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 git repo https://github.com/ubnt-intrepid/finchers-graphql-example
[INFO] finished tweaking git repo https://github.com/ubnt-intrepid/finchers-graphql-example
[INFO] tweaked toml for git repo https://github.com/ubnt-intrepid/finchers-graphql-example written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/ubnt-intrepid/finchers-graphql-example already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stdout] 95294eeec0df202cdf8162f03e96748de1916b9a2f6fd1dee0637b460511fde6
[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" "95294eeec0df202cdf8162f03e96748de1916b9a2f6fd1dee0637b460511fde6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling serde v1.0.78
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.2
[INFO] [stderr]    Compiling data-encoding v2.1.1
[INFO] [stderr]    Compiling opaque-debug v0.1.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling ring v0.13.2
[INFO] [stderr]    Compiling uuid v0.6.5
[INFO] [stderr]    Compiling finchers v0.12.0-alpha.5
[INFO] [stderr]    Compiling finchers-juniper v0.1.0-alpha.3
[INFO] [stderr]    Compiling http v0.1.12
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling cookie v0.11.0
[INFO] [stderr]    Compiling block-cipher-trait v0.5.3
[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/pin-utils-0.1.0-alpha.2/src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(pin)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr]    Compiling diesel v1.3.2
[INFO] [stderr] error: could not compile `pin-utils`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "95294eeec0df202cdf8162f03e96748de1916b9a2f6fd1dee0637b460511fde6"`
[INFO] running `"docker" "rm" "-f" "95294eeec0df202cdf8162f03e96748de1916b9a2f6fd1dee0637b460511fde6"`
[INFO] [stdout] 95294eeec0df202cdf8162f03e96748de1916b9a2f6fd1dee0637b460511fde6