[INFO] fetching crate drone-tisl-map-pieces-3 0.13.0...
[INFO] testing drone-tisl-map-pieces-3-0.13.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate drone-tisl-map-pieces-3 0.13.0 into /workspace/builds/worker-57/source
[INFO] validating manifest of crates.io crate drone-tisl-map-pieces-3 0.13.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate drone-tisl-map-pieces-3 0.13.0
[INFO] finished tweaking crates.io crate drone-tisl-map-pieces-3 0.13.0
[INFO] tweaked toml for crates.io crate drone-tisl-map-pieces-3 0.13.0 written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `resolver` has been stabilized in the 1.51 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/beta/cargo/reference/resolver.html#resolver-versions for more information about using this feature.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d9ca0a81058de10a9102f18a40c3b34eda900fa4d824fbf44c6679f8eecd6c6f
[INFO] running `Command { std: "docker" "start" "-a" "d9ca0a81058de10a9102f18a40c3b34eda900fa4d824fbf44c6679f8eecd6c6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9ca0a81058de10a9102f18a40c3b34eda900fa4d824fbf44c6679f8eecd6c6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9ca0a81058de10a9102f18a40c3b34eda900fa4d824fbf44c6679f8eecd6c6f", kill_on_drop: false }`
[INFO] [stdout] d9ca0a81058de10a9102f18a40c3b34eda900fa4d824fbf44c6679f8eecd6c6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b7d7c7ebec85a004ae7ea45f731644807d3a47d5be1c154e0ee3feff02d5848
[INFO] running `Command { std: "docker" "start" "-a" "5b7d7c7ebec85a004ae7ea45f731644807d3a47d5be1c154e0ee3feff02d5848", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `resolver` has been stabilized in the 1.51 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/beta/cargo/reference/resolver.html#resolver-versions for more information about using this feature.
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling if_chain v1.0.2
[INFO] [stderr]    Compiling futures-io v0.3.17
[INFO] [stderr]    Compiling drone-ctypes v0.13.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/drone-ctypes-0.13.0/src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(unsafe_block_in_unsafe_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `unsafe_block_in_unsafe_fn` has been stable since 1.52.0 and no longer requires an attribute to enable
[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 `drone-ctypes` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "5b7d7c7ebec85a004ae7ea45f731644807d3a47d5be1c154e0ee3feff02d5848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b7d7c7ebec85a004ae7ea45f731644807d3a47d5be1c154e0ee3feff02d5848", kill_on_drop: false }`
[INFO] [stdout] 5b7d7c7ebec85a004ae7ea45f731644807d3a47d5be1c154e0ee3feff02d5848