[INFO] fetching crate mdbx-proc 0.1.1...
[INFO] testing mdbx-proc-0.1.1 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate mdbx-proc 0.1.1 into /workspace/builds/worker-107/source
[INFO] validating manifest of crates.io crate mdbx-proc 0.1.1 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdbx-proc 0.1.1
[INFO] finished tweaking crates.io crate mdbx-proc 0.1.1
[INFO] tweaked toml for crates.io crate mdbx-proc 0.1.1 written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ea50747e4a13010b7f005a1699fbc50259c2f47bc705efd9608995a58ca1df7
[INFO] running `Command { std: "docker" "start" "-a" "7ea50747e4a13010b7f005a1699fbc50259c2f47bc705efd9608995a58ca1df7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ea50747e4a13010b7f005a1699fbc50259c2f47bc705efd9608995a58ca1df7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ea50747e4a13010b7f005a1699fbc50259c2f47bc705efd9608995a58ca1df7", kill_on_drop: false }`
[INFO] [stdout] 7ea50747e4a13010b7f005a1699fbc50259c2f47bc705efd9608995a58ca1df7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ae4e1b2e616173d4d3fa47bc2ce25d7aadeb0bea5f6245acb9d23bc0f7a7b59
[INFO] running `Command { std: "docker" "start" "-a" "6ae4e1b2e616173d4d3fa47bc2ce25d7aadeb0bea5f6245acb9d23bc0f7a7b59", kill_on_drop: false }`
[INFO] [stderr]    Compiling mdbx-proc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_span)]
[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 `mdbx-proc` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "6ae4e1b2e616173d4d3fa47bc2ce25d7aadeb0bea5f6245acb9d23bc0f7a7b59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ae4e1b2e616173d4d3fa47bc2ce25d7aadeb0bea5f6245acb9d23bc0f7a7b59", kill_on_drop: false }`
[INFO] [stdout] 6ae4e1b2e616173d4d3fa47bc2ce25d7aadeb0bea5f6245acb9d23bc0f7a7b59