[INFO] updating cached repository https://github.com/dpc/brainwiki
[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] bd049182c8a02c11b4bde3c55335c8653bae7e2e
[INFO] testing dpc/brainwiki against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdpc%2Fbrainwiki" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dpc/brainwiki 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/dpc/brainwiki
[INFO] finished tweaking git repo https://github.com/dpc/brainwiki
[INFO] tweaked toml for git repo https://github.com/dpc/brainwiki written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/dpc/brainwiki 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] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 6526d25105f46a4a4c2a1f40243a46cf390610feb04a0c8744aa512aad515dd7
[INFO] running `"docker" "start" "-a" "6526d25105f46a4a4c2a1f40243a46cf390610feb04a0c8744aa512aad515dd7"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]    Compiling indexmap v1.0.1
[INFO] [stderr]    Compiling untrusted v0.5.1
[INFO] [stderr]    Compiling bytecount v0.3.1
[INFO] [stderr]    Compiling constant_time_eq v0.1.3
[INFO] [stderr]    Compiling data-encoding v2.1.1
[INFO] [stderr]    Compiling termcolor v0.3.6
[INFO] [stderr]    Compiling slab v0.1.3
[INFO] [stderr]    Compiling libc v0.1.12
[INFO] [stderr]    Compiling bytes v0.3.0
[INFO] [stderr]    Compiling http-range v0.1.1
[INFO] [stderr]    Compiling file v1.1.2
[INFO] [stderr]    Compiling json v0.11.13
[INFO] [stderr]    Compiling stpl v0.5.0 (http://github.com/dpc/stpl#f524d39a)
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/stpl-62a66fe7db697e24/f524d39/src/lib.rs:97:1
[INFO] [stderr]    |
[INFO] [stderr] 97 | #![feature(unboxed_closures)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/stpl-62a66fe7db697e24/f524d39/src/lib.rs:98:1
[INFO] [stderr]    |
[INFO] [stderr] 98 | #![feature(fn_traits)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling hostname v0.1.5
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]    Compiling filetime v0.1.15
[INFO] [stderr]    Compiling inotify v0.3.0
[INFO] [stderr]    Compiling rpassword v2.0.0
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr]    Compiling listenfd v0.3.3
[INFO] [stderr]    Compiling fastpbkdf2 v0.1.0
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `stpl`.
[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" "6526d25105f46a4a4c2a1f40243a46cf390610feb04a0c8744aa512aad515dd7"`
[INFO] running `"docker" "rm" "-f" "6526d25105f46a4a4c2a1f40243a46cf390610feb04a0c8744aa512aad515dd7"`
[INFO] [stdout] 6526d25105f46a4a4c2a1f40243a46cf390610feb04a0c8744aa512aad515dd7