[INFO] fetching crate rfc822_sanitizer 0.3.4...
[INFO] checking rfc822_sanitizer-0.3.4 against beta for pr-78714
[INFO] extracting crate rfc822_sanitizer 0.3.4 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rfc822_sanitizer 0.3.4 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 rfc822_sanitizer 0.3.4
[INFO] finished tweaking crates.io crate rfc822_sanitizer 0.3.4
[INFO] tweaked toml for crates.io crate rfc822_sanitizer 0.3.4 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate rfc822_sanitizer 0.3.4 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] 465fec2b3f8ecd0e696cb82df4efdc2b495f4c18ee02242a4ed9cff2fb7979e1
[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" "465fec2b3f8ecd0e696cb82df4efdc2b495f4c18ee02242a4ed9cff2fb7979e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "465fec2b3f8ecd0e696cb82df4efdc2b495f4c18ee02242a4ed9cff2fb7979e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "465fec2b3f8ecd0e696cb82df4efdc2b495f4c18ee02242a4ed9cff2fb7979e1", kill_on_drop: false }`
[INFO] [stdout] 465fec2b3f8ecd0e696cb82df4efdc2b495f4c18ee02242a4ed9cff2fb7979e1
[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] e75522402e05eafc7f7b3a60831b195d894632535e6deb5635ba220aeb7aed25
[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" "e75522402e05eafc7f7b3a60831b195d894632535e6deb5635ba220aeb7aed25", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking rfc822_sanitizer v0.3.4 (/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] [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 `rfc822_sanitizer`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "e75522402e05eafc7f7b3a60831b195d894632535e6deb5635ba220aeb7aed25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e75522402e05eafc7f7b3a60831b195d894632535e6deb5635ba220aeb7aed25", kill_on_drop: false }`
[INFO] [stdout] e75522402e05eafc7f7b3a60831b195d894632535e6deb5635ba220aeb7aed25