[INFO] fetching crate polkadot-core-primitives 20.0.0...
[INFO] checking polkadot-core-primitives-20.0.0 against try#438eb4c1a1c3841523d7f672601e8adbe04cff28 for pr-147589-1
[INFO] extracting crate polkadot-core-primitives 20.0.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate polkadot-core-primitives 20.0.0
[INFO] finished tweaking crates.io crate polkadot-core-primitives 20.0.0
[INFO] tweaked toml for crates.io crate polkadot-core-primitives 20.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate polkadot-core-primitives 20.0.0 on toolchain 438eb4c1a1c3841523d7f672601e8adbe04cff28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate polkadot-core-primitives 20.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5245ffd53e7973b4ea6b92ef14ce71c4f79afbf9d3ec8d08e3175568b4823ecf
[INFO] running `Command { std: "docker" "start" "-a" "5245ffd53e7973b4ea6b92ef14ce71c4f79afbf9d3ec8d08e3175568b4823ecf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5245ffd53e7973b4ea6b92ef14ce71c4f79afbf9d3ec8d08e3175568b4823ecf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5245ffd53e7973b4ea6b92ef14ce71c4f79afbf9d3ec8d08e3175568b4823ecf", kill_on_drop: false }`
[INFO] [stdout] 5245ffd53e7973b4ea6b92ef14ce71c4f79afbf9d3ec8d08e3175568b4823ecf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b05d0a6a533161f19913f6d766de122dbdc3e7a0f57579bee74c734088e582f
[INFO] running `Command { std: "docker" "start" "-a" "7b05d0a6a533161f19913f6d766de122dbdc3e7a0f57579bee74c734088e582f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling parity-scale-codec-derive v3.7.5
[INFO] [stderr]    Compiling scale-info-derive v2.11.6
[INFO] [stderr]     Checking hash-db v0.16.0
[INFO] [stderr]    Compiling jam-codec-derive v0.1.0
[INFO] [stderr]     Checking hyper v1.6.0
[INFO] [stderr]     Checking bs58 v0.5.1
[INFO] [stderr]    Compiling docify_macros v0.2.9
[INFO] [stderr]     Checking prometheus v0.13.3
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]    Compiling sp-runtime-interface-proc-macro v20.0.0
[INFO] [stderr]     Checking trie-root v0.18.0
[INFO] [stderr]     Checking memory-db v0.34.0
[INFO] [stderr]     Checking trie-db v0.30.0
[INFO] [stderr]     Checking libsecp256k1-core v0.3.0
[INFO] [stderr]     Checking hash256-std-hasher v0.15.2
[INFO] [stdout] error: zero-sized fields in `repr(transparent)` cannot contain external non-exhaustive types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/hyper-1.6.0/src/proto/h2/mod.rs:427:5
[INFO] [stdout]     |
[INFO] [stdout] 427 |     impossible: Impossible,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this field contains `Impossible`, which is not inhabited, and makes it not a breaking change to become non-zero-sized in the future.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking merlin v3.0.0
[INFO] [stderr]     Checking uint v0.10.0
[INFO] [stderr]     Checking fixed-hash v0.8.0
[INFO] [stderr]     Checking sp-crypto-hashing v0.1.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking docify v0.2.9
[INFO] [stderr] error: could not compile `hyper` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "7b05d0a6a533161f19913f6d766de122dbdc3e7a0f57579bee74c734088e582f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b05d0a6a533161f19913f6d766de122dbdc3e7a0f57579bee74c734088e582f", kill_on_drop: false }`
[INFO] [stdout] 7b05d0a6a533161f19913f6d766de122dbdc3e7a0f57579bee74c734088e582f