[INFO] fetching crate kes 0.15.0...
[INFO] checking kes-0.15.0 against beta for pr-78714
[INFO] extracting crate kes 0.15.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate kes 0.15.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kes 0.15.0
[INFO] finished tweaking crates.io crate kes 0.15.0
[INFO] tweaked toml for crates.io crate kes 0.15.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate kes 0.15.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19791158dfcdb8407aaf5ede247b1603826330b1c69403ef90c75108b21b15fd
[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" "19791158dfcdb8407aaf5ede247b1603826330b1c69403ef90c75108b21b15fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19791158dfcdb8407aaf5ede247b1603826330b1c69403ef90c75108b21b15fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19791158dfcdb8407aaf5ede247b1603826330b1c69403ef90c75108b21b15fd", kill_on_drop: false }`
[INFO] [stdout] 19791158dfcdb8407aaf5ede247b1603826330b1c69403ef90c75108b21b15fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a2f9095abdd7822142e27afec1c5f150285a0fe115b120ce3427f60c1a3ad1ab
[INFO] running `Command { std: "docker" "start" "-a" "a2f9095abdd7822142e27afec1c5f150285a0fe115b120ce3427f60c1a3ad1ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]     Checking bumpalo v3.4.0
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking ahash v0.4.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking kes v0.15.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> benches/parse.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kes`
[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 `Command { std: "docker" "inspect" "a2f9095abdd7822142e27afec1c5f150285a0fe115b120ce3427f60c1a3ad1ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2f9095abdd7822142e27afec1c5f150285a0fe115b120ce3427f60c1a3ad1ab", kill_on_drop: false }`
[INFO] [stdout] a2f9095abdd7822142e27afec1c5f150285a0fe115b120ce3427f60c1a3ad1ab