[INFO] fetching crate dkim 0.1.1...
[INFO] checking dkim-0.1.1 against beta for pr-78714
[INFO] extracting crate dkim 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate dkim 0.1.1 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 dkim 0.1.1
[INFO] finished tweaking crates.io crate dkim 0.1.1
[INFO] tweaked toml for crates.io crate dkim 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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] 4a92234e540da582a493f19c0c0acca0bde0ed00f091a638d4b43e027eb4c3cf
[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" "4a92234e540da582a493f19c0c0acca0bde0ed00f091a638d4b43e027eb4c3cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a92234e540da582a493f19c0c0acca0bde0ed00f091a638d4b43e027eb4c3cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a92234e540da582a493f19c0c0acca0bde0ed00f091a638d4b43e027eb4c3cf", kill_on_drop: false }`
[INFO] [stdout] 4a92234e540da582a493f19c0c0acca0bde0ed00f091a638d4b43e027eb4c3cf
[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] [stdout] 8024962a00583e46ed9c908d911f9a0aa10fa8901b2b0ba7b069f33ece6ac681
[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" "8024962a00583e46ed9c908d911f9a0aa10fa8901b2b0ba7b069f33ece6ac681", kill_on_drop: false }`
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking quoted_printable v0.4.2
[INFO] [stderr]     Checking string-tools v0.1.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-bigint-dig v0.6.0
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking email-parser v0.1.3
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking csv v1.1.4
[INFO] [stderr]     Checking pem v0.8.1
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]     Checking simple_asn1 v0.4.1
[INFO] [stderr]     Checking prettydiff v0.3.1
[INFO] [stderr]     Checking zeroize v1.1.1
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking trust-dns-proto v0.19.5
[INFO] [stderr]     Checking rsa v0.3.0
[INFO] [stderr]     Checking trust-dns-resolver v0.19.5
[INFO] [stderr]     Checking dkim v0.1.1 (/opt/rustwide/workdir)
[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] [stderr] error: could not compile `dkim`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "8024962a00583e46ed9c908d911f9a0aa10fa8901b2b0ba7b069f33ece6ac681", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8024962a00583e46ed9c908d911f9a0aa10fa8901b2b0ba7b069f33ece6ac681", kill_on_drop: false }`
[INFO] [stdout] 8024962a00583e46ed9c908d911f9a0aa10fa8901b2b0ba7b069f33ece6ac681