[INFO] fetching crate rust_icu_ucnv 3.0.0...
[INFO] documenting rust_icu_ucnv-3.0.0 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate rust_icu_ucnv 3.0.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate rust_icu_ucnv 3.0.0 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_icu_ucnv 3.0.0
[INFO] finished tweaking crates.io crate rust_icu_ucnv 3.0.0
[INFO] tweaked toml for crates.io crate rust_icu_ucnv 3.0.0 written to /workspace/builds/worker-2-tc1/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" "+1.69.0" "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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rust_icu_common v3.0.0
[INFO] [stderr]   Downloaded rust_icu_sys v3.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6622e1ecfe946a04c02fb1378a25624d59ed5ec924a179fcb7492ce0d6e694e
[INFO] running `Command { std: "docker" "start" "-a" "f6622e1ecfe946a04c02fb1378a25624d59ed5ec924a179fcb7492ce0d6e694e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6622e1ecfe946a04c02fb1378a25624d59ed5ec924a179fcb7492ce0d6e694e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6622e1ecfe946a04c02fb1378a25624d59ed5ec924a179fcb7492ce0d6e694e", kill_on_drop: false }`
[INFO] [stdout] f6622e1ecfe946a04c02fb1378a25624d59ed5ec924a179fcb7492ce0d6e694e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec052b4fb2b90173960b724c9c3e58ac337424af34c2fb68ae6e5ba3f8ee9e12
[INFO] running `Command { std: "docker" "start" "-a" "ec052b4fb2b90173960b724c9c3e58ac337424af34c2fb68ae6e5ba3f8ee9e12", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.7.1
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling nom v5.1.3
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling bindgen v0.53.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling aho-corasick v1.0.1
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/anyhow-1.0.71/src/lib.rs:214:32
[INFO] [stdout]     |
[INFO] [stdout] 214 | #![cfg_attr(backtrace, feature(error_generic_member_access, provide_any))]
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/anyhow-1.0.71/src/lib.rs:214:61
[INFO] [stdout]     |
[INFO] [stdout] 214 | #![cfg_attr(backtrace, feature(error_generic_member_access, provide_any))]
[INFO] [stdout]     |                                                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `anyhow` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ec052b4fb2b90173960b724c9c3e58ac337424af34c2fb68ae6e5ba3f8ee9e12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec052b4fb2b90173960b724c9c3e58ac337424af34c2fb68ae6e5ba3f8ee9e12", kill_on_drop: false }`
[INFO] [stdout] ec052b4fb2b90173960b724c9c3e58ac337424af34c2fb68ae6e5ba3f8ee9e12
