[INFO] fetching crate identicon 0.2.1...
[INFO] checking identicon-0.2.1 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate identicon 0.2.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate identicon 0.2.1 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate identicon 0.2.1
[INFO] finished tweaking crates.io crate identicon 0.2.1
[INFO] tweaked toml for crates.io crate identicon 0.2.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate identicon 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded md5-asm v0.4.3
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5d4895dbc9e003f84c502d3424d034b3a2235b9b007a1ad1c70dd7853c1f725
[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" "a5d4895dbc9e003f84c502d3424d034b3a2235b9b007a1ad1c70dd7853c1f725", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5d4895dbc9e003f84c502d3424d034b3a2235b9b007a1ad1c70dd7853c1f725", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5d4895dbc9e003f84c502d3424d034b3a2235b9b007a1ad1c70dd7853c1f725", kill_on_drop: false }`
[INFO] [stdout] a5d4895dbc9e003f84c502d3424d034b3a2235b9b007a1ad1c70dd7853c1f725
[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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87114cf9c92bb38c8e3f22608430698298f6b3e1c55aa2da6e137c2cd3fb70fd
[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" "87114cf9c92bb38c8e3f22608430698298f6b3e1c55aa2da6e137c2cd3fb70fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling md5-asm v0.4.3
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking md-5 v0.9.1
[INFO] [stderr]     Checking identicon v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> benches/generate.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 `identicon` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "87114cf9c92bb38c8e3f22608430698298f6b3e1c55aa2da6e137c2cd3fb70fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87114cf9c92bb38c8e3f22608430698298f6b3e1c55aa2da6e137c2cd3fb70fd", kill_on_drop: false }`
[INFO] [stdout] 87114cf9c92bb38c8e3f22608430698298f6b3e1c55aa2da6e137c2cd3fb70fd
