[INFO] fetching crate sc-finality-grandpa 0.8.1...
[INFO] checking sc-finality-grandpa-0.8.1 against try#82acd1d76add2232e19c1f0feb250d2a19ec6efe for pr-81213
[INFO] extracting crate sc-finality-grandpa 0.8.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate sc-finality-grandpa 0.8.1 on toolchain 82acd1d76add2232e19c1f0feb250d2a19ec6efe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sc-finality-grandpa 0.8.1
[INFO] finished tweaking crates.io crate sc-finality-grandpa 0.8.1
[INFO] tweaked toml for crates.io crate sc-finality-grandpa 0.8.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1c9e591b0f5795ae89e3d6d699d8956449a1e66aa6c2c7c5fb5a3cb259f9add8
[INFO] running `Command { std: "docker" "start" "-a" "1c9e591b0f5795ae89e3d6d699d8956449a1e66aa6c2c7c5fb5a3cb259f9add8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c9e591b0f5795ae89e3d6d699d8956449a1e66aa6c2c7c5fb5a3cb259f9add8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c9e591b0f5795ae89e3d6d699d8956449a1e66aa6c2c7c5fb5a3cb259f9add8", kill_on_drop: false }`
[INFO] [stdout] 1c9e591b0f5795ae89e3d6d699d8956449a1e66aa6c2c7c5fb5a3cb259f9add8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 64e4ae1e2cceeb5f7b114b97ade45858bdf39a65290822d91a61090dd81fa1a2
[INFO] running `Command { std: "docker" "start" "-a" "64e4ae1e2cceeb5f7b114b97ade45858bdf39a65290822d91a61090dd81fa1a2", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-timer v2.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.121
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.1.3
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]    Compiling parity-util-mem-derive v0.1.0
[INFO] [stderr]     Checking pin-project v1.0.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.69
[INFO] [stderr]     Checking minicbor v0.5.1
[INFO] [stderr]     Checking strum v0.16.0
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking zeroize v1.2.0
[INFO] [stderr]     Checking prometheus v0.10.0
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking curve25519-dalek v3.0.2
[INFO] [stderr]     Checking curve25519-dalek v2.1.2
[INFO] [stderr]     Checking merlin v2.0.1
[INFO] [stderr]     Checking secrecy v0.6.0
[INFO] [stderr]     Checking chacha20 v0.5.0
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]     Checking chacha20poly1305 v0.6.0
[INFO] [stderr]     Checking x25519-dalek v1.1.0
[INFO] [stderr]     Checking snow v0.7.2
[INFO] [stderr]     Checking schnorrkel v0.9.1
[INFO] [stderr]     Checking x25519-dalek v0.6.0
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.69
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking substrate-bip39 v0.4.2
[INFO] [stderr]     Checking tiny-bip39 v0.7.3
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]     Checking wasm-bindgen v0.2.69
[INFO] [stderr]     Checking js-sys v0.3.46
[INFO] [stderr]     Checking futures-executor v0.3.12
[INFO] [stderr]     Checking unsigned-varint v0.5.1
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking futures v0.3.12
[INFO] [stderr]    Compiling libp2p-core v0.22.1
[INFO] [stderr]    Compiling libp2p-identify v0.22.0
[INFO] [stderr]    Compiling libp2p-noise v0.24.0
[INFO] [stderr]    Compiling libp2p-kad v0.23.0
[INFO] [stderr]    Compiling sc-network v0.8.1
[INFO] [stderr]     Checking multihash v0.11.4
[INFO] [stdout] error[E0277]: the trait bound `dir_builder::DirBuilder: std::sealed::Sealed` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/async-std-1.9.0/src/fs/dir_builder.rs:117:10
[INFO] [stdout]     |
[INFO] [stdout] 117 |     impl DirBuilderExt for DirBuilder {
[INFO] [stdout]     |          ^^^^^^^^^^^^^ the trait `std::sealed::Sealed` is not implemented for `dir_builder::DirBuilder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `dir_entry::DirEntry: std::sealed::Sealed` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/async-std-1.9.0/src/fs/dir_entry.rs:170:10
[INFO] [stdout]     |
[INFO] [stdout] 170 |     impl DirEntryExt for DirEntry {
[INFO] [stdout]     |          ^^^^^^^^^^^ the trait `std::sealed::Sealed` is not implemented for `dir_entry::DirEntry`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `open_options::OpenOptions: std::sealed::Sealed` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/async-std-1.9.0/src/fs/open_options.rs:303:10
[INFO] [stdout]     |
[INFO] [stdout] 303 |     impl OpenOptionsExt for OpenOptions {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^ the trait `std::sealed::Sealed` is not implemented for `open_options::OpenOptions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures_codec v0.4.1
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `async-std`
[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" "64e4ae1e2cceeb5f7b114b97ade45858bdf39a65290822d91a61090dd81fa1a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64e4ae1e2cceeb5f7b114b97ade45858bdf39a65290822d91a61090dd81fa1a2", kill_on_drop: false }`
[INFO] [stdout] 64e4ae1e2cceeb5f7b114b97ade45858bdf39a65290822d91a61090dd81fa1a2