[INFO] crate ufmt 0.1.0-beta.5 is already in cache
[INFO] checking ufmt-0.1.0-beta.5 against try#8810c24b0958114d8dbb32d878444e8956fce80f for pr-66063
[INFO] extracting crate ufmt 0.1.0-beta.5 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate ufmt 0.1.0-beta.5 on toolchain 8810c24b0958114d8dbb32d878444e8956fce80f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8810c24b0958114d8dbb32d878444e8956fce80f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ufmt 0.1.0-beta.5
[INFO] finished tweaking crates.io crate ufmt 0.1.0-beta.5
[INFO] tweaked toml for crates.io crate ufmt 0.1.0-beta.5 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8810c24b0958114d8dbb32d878444e8956fce80f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8810c24b0958114d8dbb32d878444e8956fce80f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+8810c24b0958114d8dbb32d878444e8956fce80f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 688c4640b5e67d7f32d2eb503aa3e5dffea52a0d40173c9f28c7e5dfa0f86ad2
[INFO] running `"docker" "start" "-a" "688c4640b5e67d7f32d2eb503aa3e5dffea52a0d40173c9f28c7e5dfa0f86ad2"`
[INFO] [stderr]     Checking ufmt-write v0.1.0-beta.1
[INFO] [stderr]    Compiling ufmt-macros v0.1.0-beta.4
[INFO] [stderr]     Checking ufmt v0.1.0-beta.5 (/opt/rustwide/workdir)
[INFO] [stderr] error: run `cargo test --features std` instead of `cargo test`
[INFO] [stderr]    --> src/lib.rs:234:1
[INFO] [stderr]     |
[INFO] [stderr] 234 | compile_error!("run `cargo test --features std` instead of `cargo test`");
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]    --> src/lib.rs:203:19
[INFO] [stderr]     |
[INFO] [stderr] 203 | #![cfg_attr(test, feature(proc_macro_hygiene))]
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `ufmt`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "688c4640b5e67d7f32d2eb503aa3e5dffea52a0d40173c9f28c7e5dfa0f86ad2"`
[INFO] running `"docker" "rm" "-f" "688c4640b5e67d7f32d2eb503aa3e5dffea52a0d40173c9f28c7e5dfa0f86ad2"`
[INFO] [stdout] 688c4640b5e67d7f32d2eb503aa3e5dffea52a0d40173c9f28c7e5dfa0f86ad2