[INFO] updating cached repository https://github.com/ltentrup/caqe
[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] 491a118a719c7d436b88b993dd69e27a34a41e31
[INFO] checking ltentrup/caqe against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fltentrup%2Fcaqe" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ltentrup/caqe on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ltentrup/caqe
[INFO] finished tweaking git repo https://github.com/ltentrup/caqe
[INFO] tweaked toml for git repo https://github.com/ltentrup/caqe written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ltentrup/caqe already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=allow" "-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-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5fd468cd81e55e095ecc6f955b5ce844bec1302b5ddb7d5fd0c5d4aef921c816
[INFO] running `"docker" "start" "-a" "5fd468cd81e55e095ecc6f955b5ce844bec1302b5ddb7d5fd0c5d4aef921c816"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking dot v0.1.4
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking uncover v0.1.1
[INFO] [stderr]    Compiling jemalloc-sys v0.1.8
[INFO] [stderr]    Compiling cryptominisat v5.0.1 (https://github.com/ltentrup/cryptominisat-rs.git?rev=d812d3032eaa0c31f5f25534df9a1d72c5d354cc#d812d303)
[INFO] [stderr]     Checking clicolors-control v1.0.0
[INFO] [stderr]     Checking colored-diff v0.2.1
[INFO] [stderr]     Checking regex v1.1.5
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking atomicwrites v0.2.2
[INFO] [stderr]     Checking serde v1.0.90
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking tempfile v3.0.6
[INFO] [stderr]     Checking ena v0.11.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking simplelog v0.5.3
[INFO] [stderr]     Checking console v0.7.5
[INFO] [stderr]     Checking indicatif v0.11.0
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking jemallocator v0.1.9
[INFO] [stderr]     Checking caqe v4.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> benches/endtoend.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[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] error: could not compile `caqe`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "5fd468cd81e55e095ecc6f955b5ce844bec1302b5ddb7d5fd0c5d4aef921c816"`
[INFO] running `"docker" "rm" "-f" "5fd468cd81e55e095ecc6f955b5ce844bec1302b5ddb7d5fd0c5d4aef921c816"`
[INFO] [stdout] 5fd468cd81e55e095ecc6f955b5ce844bec1302b5ddb7d5fd0c5d4aef921c816