[INFO] fetching crate varianteq 0.5.0...
[INFO] testing varianteq-0.5.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate varianteq 0.5.0 into /workspace/builds/worker-67/source
[INFO] validating manifest of crates.io crate varianteq 0.5.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate varianteq 0.5.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate varianteq 0.5.0
[INFO] tweaked toml for crates.io crate varianteq 0.5.0 written to /workspace/builds/worker-67/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39e45f5183407e2b03d4afd314122d00bc9116a3c6cf39355c3c4a8e9da81797
[INFO] running `Command { std: "docker" "start" "-a" "39e45f5183407e2b03d4afd314122d00bc9116a3c6cf39355c3c4a8e9da81797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39e45f5183407e2b03d4afd314122d00bc9116a3c6cf39355c3c4a8e9da81797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39e45f5183407e2b03d4afd314122d00bc9116a3c6cf39355c3c4a8e9da81797", kill_on_drop: false }`
[INFO] [stdout] 39e45f5183407e2b03d4afd314122d00bc9116a3c6cf39355c3c4a8e9da81797
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5ae8ff7775b8cf369311415e408f5a6b26880d87fa5ed53e8704ae076c77a02
[INFO] running `Command { std: "docker" "start" "-a" "c5ae8ff7775b8cf369311415e408f5a6b26880d87fa5ed53e8704ae076c77a02", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling varianteq v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 | #![feature(proc_macro_diagnostic)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `varianteq` due to 2 previous errors
[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] running `Command { std: "docker" "inspect" "c5ae8ff7775b8cf369311415e408f5a6b26880d87fa5ed53e8704ae076c77a02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5ae8ff7775b8cf369311415e408f5a6b26880d87fa5ed53e8704ae076c77a02", kill_on_drop: false }`
[INFO] [stdout] c5ae8ff7775b8cf369311415e408f5a6b26880d87fa5ed53e8704ae076c77a02