[INFO] fetching crate unwrap_helpers_proc_macros 0.1.1...
[INFO] testing unwrap_helpers_proc_macros-0.1.1 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate unwrap_helpers_proc_macros 0.1.1 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate unwrap_helpers_proc_macros 0.1.1 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unwrap_helpers_proc_macros 0.1.1
[INFO] finished tweaking crates.io crate unwrap_helpers_proc_macros 0.1.1
[INFO] tweaked toml for crates.io crate unwrap_helpers_proc_macros 0.1.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17b38f4f664748e777afc35f8438e1e2e7b756c9adfd130199082eb5dca3d511
[INFO] running `Command { std: "docker" "start" "-a" "17b38f4f664748e777afc35f8438e1e2e7b756c9adfd130199082eb5dca3d511", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17b38f4f664748e777afc35f8438e1e2e7b756c9adfd130199082eb5dca3d511", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17b38f4f664748e777afc35f8438e1e2e7b756c9adfd130199082eb5dca3d511", kill_on_drop: false }`
[INFO] [stdout] 17b38f4f664748e777afc35f8438e1e2e7b756c9adfd130199082eb5dca3d511
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 867477c1dc6a5ab1ecb057db9d713407dc459ba56f4740a9e8eba1a5f60b2cce
[INFO] running `Command { std: "docker" "start" "-a" "867477c1dc6a5ab1ecb057db9d713407dc459ba56f4740a9e8eba1a5f60b2cce", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling unwrap_helpers_proc_macros 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:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns)]
[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 `unwrap_helpers_proc_macros` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "867477c1dc6a5ab1ecb057db9d713407dc459ba56f4740a9e8eba1a5f60b2cce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "867477c1dc6a5ab1ecb057db9d713407dc459ba56f4740a9e8eba1a5f60b2cce", kill_on_drop: false }`
[INFO] [stdout] 867477c1dc6a5ab1ecb057db9d713407dc459ba56f4740a9e8eba1a5f60b2cce
