[INFO] fetching crate xmz-snapshot 0.2.1...
[INFO] testing xmz-snapshot-0.2.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate xmz-snapshot 0.2.1 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate xmz-snapshot 0.2.1 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 xmz-snapshot 0.2.1
[INFO] finished tweaking crates.io crate xmz-snapshot 0.2.1
[INFO] tweaked toml for crates.io crate xmz-snapshot 0.2.1 written to /workspace/builds/worker-28/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] bfdab35c3c67b813c416ad3161a0bb2b1664353fd932fd609c8366a90134e41a
[INFO] running `Command { std: "docker" "start" "-a" "bfdab35c3c67b813c416ad3161a0bb2b1664353fd932fd609c8366a90134e41a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfdab35c3c67b813c416ad3161a0bb2b1664353fd932fd609c8366a90134e41a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfdab35c3c67b813c416ad3161a0bb2b1664353fd932fd609c8366a90134e41a", kill_on_drop: false }`
[INFO] [stdout] bfdab35c3c67b813c416ad3161a0bb2b1664353fd932fd609c8366a90134e41a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] a5cf6e6a92823a716e79719ac141a5838dc564b88e5d621dca94b362275ce712
[INFO] running `Command { std: "docker" "start" "-a" "a5cf6e6a92823a716e79719ac141a5838dc564b88e5d621dca94b362275ce712", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling xmz-snapshot v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(stmt_expr_attributes)]
[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 `xmz-snapshot` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a5cf6e6a92823a716e79719ac141a5838dc564b88e5d621dca94b362275ce712", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5cf6e6a92823a716e79719ac141a5838dc564b88e5d621dca94b362275ce712", kill_on_drop: false }`
[INFO] [stdout] a5cf6e6a92823a716e79719ac141a5838dc564b88e5d621dca94b362275ce712