[INFO] fetching crate rundo 0.4.0...
[INFO] testing rundo-0.4.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate rundo 0.4.0 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate rundo 0.4.0 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 rundo 0.4.0
[INFO] finished tweaking crates.io crate rundo 0.4.0
[INFO] tweaked toml for crates.io crate rundo 0.4.0 written to /workspace/builds/worker-19/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hostname v0.1.5
[INFO] [stderr]   Downloaded winutil v0.1.1
[INFO] [stderr]   Downloaded rundo_attrs v0.4.0
[INFO] [stderr]   Downloaded bson v0.11.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] beed54c8c683853aedbd6ea4fe22d58bdb0fbec17b98c5acda1aace7bddb9130
[INFO] running `Command { std: "docker" "start" "-a" "beed54c8c683853aedbd6ea4fe22d58bdb0fbec17b98c5acda1aace7bddb9130", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "beed54c8c683853aedbd6ea4fe22d58bdb0fbec17b98c5acda1aace7bddb9130", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "beed54c8c683853aedbd6ea4fe22d58bdb0fbec17b98c5acda1aace7bddb9130", kill_on_drop: false }`
[INFO] [stdout] beed54c8c683853aedbd6ea4fe22d58bdb0fbec17b98c5acda1aace7bddb9130
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] 067c8175619c506020d0dd0b7f94017ac17ada5f5aaa4fcf8387181faa8073e3
[INFO] running `Command { std: "docker" "start" "-a" "067c8175619c506020d0dd0b7f94017ac17ada5f5aaa4fcf8387181faa8073e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling hex v0.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling rundo_types v0.4.0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling hostname v0.1.5
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling bson v0.11.1
[INFO] [stderr]    Compiling rundo_attrs v0.4.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rundo_attrs-0.4.0/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(proc_macro)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
[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 `rundo_attrs` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "067c8175619c506020d0dd0b7f94017ac17ada5f5aaa4fcf8387181faa8073e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "067c8175619c506020d0dd0b7f94017ac17ada5f5aaa4fcf8387181faa8073e3", kill_on_drop: false }`
[INFO] [stdout] 067c8175619c506020d0dd0b7f94017ac17ada5f5aaa4fcf8387181faa8073e3