[INFO] fetching crate awint_core 0.1.0...
[INFO] checking awint_core-0.1.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate awint_core 0.1.0 into /workspace/builds/worker-32/source
[INFO] validating manifest of crates.io crate awint_core 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate awint_core 0.1.0
[INFO] finished tweaking crates.io crate awint_core 0.1.0
[INFO] tweaked toml for crates.io crate awint_core 0.1.0 written to /workspace/builds/worker-32/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba8ca49cec6b76d38b55acd44c04d2051fdb42112275a225ab65618aaced8b0a
[INFO] running `Command { std: "docker" "start" "-a" "ba8ca49cec6b76d38b55acd44c04d2051fdb42112275a225ab65618aaced8b0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba8ca49cec6b76d38b55acd44c04d2051fdb42112275a225ab65618aaced8b0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba8ca49cec6b76d38b55acd44c04d2051fdb42112275a225ab65618aaced8b0a", kill_on_drop: false }`
[INFO] [stdout] ba8ca49cec6b76d38b55acd44c04d2051fdb42112275a225ab65618aaced8b0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bba5fe980c9435decf2495d97d8d24a87877882aa3f4755a51de0b36cf165fbd
[INFO] running `Command { std: "docker" "start" "-a" "bba5fe980c9435decf2495d97d8d24a87877882aa3f4755a51de0b36cf165fbd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling const_fn v0.4.8
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking awint_internals v0.1.0
[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/awint_internals-0.1.0/src/lib.rs:8:40
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![cfg_attr(feature = "const_support", feature(const_panic))]
[INFO] [stdout]   |                                        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `awint_internals` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "bba5fe980c9435decf2495d97d8d24a87877882aa3f4755a51de0b36cf165fbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bba5fe980c9435decf2495d97d8d24a87877882aa3f4755a51de0b36cf165fbd", kill_on_drop: false }`
[INFO] [stdout] bba5fe980c9435decf2495d97d8d24a87877882aa3f4755a51de0b36cf165fbd
