[INFO] fetching crate web-glitz 0.2.3...
[INFO] testing web-glitz-0.2.3 against 1.54.0 for beta-1.55-1
[INFO] extracting crate web-glitz 0.2.3 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate web-glitz 0.2.3 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate web-glitz 0.2.3
[INFO] finished tweaking crates.io crate web-glitz 0.2.3
[INFO] tweaked toml for crates.io crate web-glitz 0.2.3 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d92dd5d20c1fd03b8d1914991ee1663162cfd9e741b747fb8faf10c917f0a33
[INFO] running `Command { std: "docker" "start" "-a" "5d92dd5d20c1fd03b8d1914991ee1663162cfd9e741b747fb8faf10c917f0a33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d92dd5d20c1fd03b8d1914991ee1663162cfd9e741b747fb8faf10c917f0a33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d92dd5d20c1fd03b8d1914991ee1663162cfd9e741b747fb8faf10c917f0a33", kill_on_drop: false }`
[INFO] [stdout] 5d92dd5d20c1fd03b8d1914991ee1663162cfd9e741b747fb8faf10c917f0a33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c4cd6d46ed6cda7f2588e8b7ec47209d9d84b4dc4652643b3f71be115118b55
[INFO] running `Command { std: "docker" "start" "-a" "5c4cd6d46ed6cda7f2588e8b7ec47209d9d84b4dc4652643b3f71be115118b55", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasm-bindgen v0.2.75
[INFO] [stderr]    Compiling staticvec v0.10.8
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling std140-macros v0.1.2
[INFO] [stderr]    Compiling web-glitz-macros v0.2.0
[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/staticvec-0.10.8/src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | / #![feature(
[INFO] [stdout] 32 | |   const_assume,
[INFO] [stdout] 33 | |   const_evaluatable_checked,
[INFO] [stdout] 34 | |   const_fn_floating_point_arithmetic,
[INFO] [stdout] ...  |
[INFO] [stdout] 70 | |   untagged_unions
[INFO] [stdout] 71 | | )]
[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/staticvec-0.10.8/src/lib.rs:72:30
[INFO] [stdout]    |
[INFO] [stdout] 72 | #![cfg_attr(feature = "std", feature(read_initializer))]
[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 `staticvec`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "5c4cd6d46ed6cda7f2588e8b7ec47209d9d84b4dc4652643b3f71be115118b55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c4cd6d46ed6cda7f2588e8b7ec47209d9d84b4dc4652643b3f71be115118b55", kill_on_drop: false }`
[INFO] [stdout] 5c4cd6d46ed6cda7f2588e8b7ec47209d9d84b4dc4652643b3f71be115118b55
