[INFO] fetching crate gimli 0.23.0...
[INFO] checking gimli-0.23.0 against beta for pr-78714
[INFO] extracting crate gimli 0.23.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate gimli 0.23.0 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 gimli 0.23.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate gimli 0.23.0
[INFO] tweaked toml for crates.io crate gimli 0.23.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate gimli 0.23.0 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-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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2ceadfa70eda3ea96a3e6142877885b90b8b8023e2516d3017e36dea9d7919c1
[INFO] running `Command { std: "docker" "start" "-a" "2ceadfa70eda3ea96a3e6142877885b90b8b8023e2516d3017e36dea9d7919c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ceadfa70eda3ea96a3e6142877885b90b8b8023e2516d3017e36dea9d7919c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ceadfa70eda3ea96a3e6142877885b90b8b8023e2516d3017e36dea9d7919c1", kill_on_drop: false }`
[INFO] [stdout] 2ceadfa70eda3ea96a3e6142877885b90b8b8023e2516d3017e36dea9d7919c1
[INFO] running `Command { std: "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" "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] [stdout] 123d3e143fa959dc872d85fe729318fe830fbd8bb20c017bb50f93ce48d4cf3a
[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" "123d3e143fa959dc872d85fe729318fe830fbd8bb20c017bb50f93ce48d4cf3a", kill_on_drop: false }`
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking wasmparser v0.57.0
[INFO] [stderr]     Checking regex-syntax v0.6.20
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking flate2 v1.0.18
[INFO] [stderr]     Checking test-assembler v0.1.5
[INFO] [stderr]     Checking gimli v0.23.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking crossbeam-queue v0.3.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking crossbeam v0.8.0
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> benches/bench.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 `gimli`
[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" "123d3e143fa959dc872d85fe729318fe830fbd8bb20c017bb50f93ce48d4cf3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "123d3e143fa959dc872d85fe729318fe830fbd8bb20c017bb50f93ce48d4cf3a", kill_on_drop: false }`
[INFO] [stdout] 123d3e143fa959dc872d85fe729318fe830fbd8bb20c017bb50f93ce48d4cf3a