[INFO] cloning repository https://github.com/eraserhd/parinfer-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eraserhd/parinfer-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feraserhd%2Fparinfer-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feraserhd%2Fparinfer-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 998484ba3ca9c162971e3fa6f01e67cc3e9ac85e
[INFO] checking eraserhd/parinfer-rust against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feraserhd%2Fparinfer-rust" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eraserhd/parinfer-rust 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 git repo https://github.com/eraserhd/parinfer-rust
[INFO] finished tweaking git repo https://github.com/eraserhd/parinfer-rust
[INFO] tweaked toml for git repo https://github.com/eraserhd/parinfer-rust written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/eraserhd/parinfer-rust 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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] ca49c196d6f6ff2e6b1e32b56ebb7927c0ee2ae386d844d1c30da018e9ded98b
[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" "ca49c196d6f6ff2e6b1e32b56ebb7927c0ee2ae386d844d1c30da018e9ded98b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca49c196d6f6ff2e6b1e32b56ebb7927c0ee2ae386d844d1c30da018e9ded98b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca49c196d6f6ff2e6b1e32b56ebb7927c0ee2ae386d844d1c30da018e9ded98b", kill_on_drop: false }`
[INFO] [stdout] ca49c196d6f6ff2e6b1e32b56ebb7927c0ee2ae386d844d1c30da018e9ded98b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 500221c019a896006e001120d741275dbd39864610e78bed1ebe303d1403d379
[INFO] running `Command { std: "docker" "start" "-a" "500221c019a896006e001120d741275dbd39864610e78bed1ebe303d1403d379", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling bindgen v0.48.1
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling clang-sys v0.26.4
[INFO] [stderr]     Checking getopts v0.2.19
[INFO] [stderr]    Compiling hashbrown v0.1.8
[INFO] [stderr]    Compiling libloading v0.5.1
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling backtrace v0.3.30
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling cexpr v0.3.5
[INFO] [stderr]    Compiling env_logger v0.6.1
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling ctor v0.1.9
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]    Compiling emacs-macros v0.11.0
[INFO] [stderr]    Compiling emacs_module v0.10.0
[INFO] [stderr]     Checking emacs v0.11.0
[INFO] [stderr]     Checking parinfer_rust v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> benches/perf.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 `parinfer_rust`
[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" "500221c019a896006e001120d741275dbd39864610e78bed1ebe303d1403d379", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "500221c019a896006e001120d741275dbd39864610e78bed1ebe303d1403d379", kill_on_drop: false }`
[INFO] [stdout] 500221c019a896006e001120d741275dbd39864610e78bed1ebe303d1403d379