[INFO] fetching crate rust_icu_unum 1.0.0...
[INFO] testing rust_icu_unum-1.0.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate rust_icu_unum 1.0.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rust_icu_unum 1.0.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_icu_unum 1.0.0
[INFO] finished tweaking crates.io crate rust_icu_unum 1.0.0
[INFO] tweaked toml for crates.io crate rust_icu_unum 1.0.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65cf590a9eb75c9fc48c8234a915bb38a61ac9aea6174455c80ddf3e2c26d4f2
[INFO] running `Command { std: "docker" "start" "-a" "65cf590a9eb75c9fc48c8234a915bb38a61ac9aea6174455c80ddf3e2c26d4f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65cf590a9eb75c9fc48c8234a915bb38a61ac9aea6174455c80ddf3e2c26d4f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65cf590a9eb75c9fc48c8234a915bb38a61ac9aea6174455c80ddf3e2c26d4f2", kill_on_drop: false }`
[INFO] [stdout] 65cf590a9eb75c9fc48c8234a915bb38a61ac9aea6174455c80ddf3e2c26d4f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95e572775a455f2d4795b612754dd7499c1f10a4596de6fc444bb5e974616f03
[INFO] running `Command { std: "docker" "start" "-a" "95e572775a455f2d4795b612754dd7499c1f10a4596de6fc444bb5e974616f03", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_icu_uloc v1.0.0
[INFO] [stderr]    Compiling bindgen v0.53.3
[INFO] [stderr]    Compiling rust_icu_sys v1.0.0
[INFO] [stderr]    Compiling rust_icu_common v1.0.0
[INFO] [stderr]    Compiling rust_icu_ustring v1.0.0
[INFO] [stderr]    Compiling rust_icu_uenum v1.0.0
[INFO] [stderr]    Compiling rust_icu_uformattable v1.0.0
[INFO] [stderr]    Compiling rust_icu_unum v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![feature(proc_macro_hygiene)]
[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 `rust_icu_unum` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "95e572775a455f2d4795b612754dd7499c1f10a4596de6fc444bb5e974616f03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95e572775a455f2d4795b612754dd7499c1f10a4596de6fc444bb5e974616f03", kill_on_drop: false }`
[INFO] [stdout] 95e572775a455f2d4795b612754dd7499c1f10a4596de6fc444bb5e974616f03
