[INFO] cloning repository https://github.com/tetcore/substrate-proof-of-existence
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tetcore/substrate-proof-of-existence" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftetcore%2Fsubstrate-proof-of-existence", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftetcore%2Fsubstrate-proof-of-existence'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0cd47ed2ed20410af44db69b9a0c720498361650
[INFO] checking tetcore/substrate-proof-of-existence against master#18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb for pr-96970
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftetcore%2Fsubstrate-proof-of-existence" "/workspace/builds/worker-51/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-51/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tetcore/substrate-proof-of-existence on toolchain 18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tetcore/substrate-proof-of-existence
[INFO] finished tweaking git repo https://github.com/tetcore/substrate-proof-of-existence
[INFO] tweaked toml for git repo https://github.com/tetcore/substrate-proof-of-existence written to /workspace/builds/worker-51/source/Cargo.toml
[INFO] crate git repo https://github.com/tetcore/substrate-proof-of-existence already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/paritytech/substrate.git`
[INFO] [stderr]     Updating git repository `https://github.com/paritytech/substrate-bip39`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded toml v0.5.1
[INFO] [stderr]   Downloaded impl-serde v0.1.1
[INFO] [stderr]   Downloaded parity-codec v3.5.4
[INFO] [stderr]   Downloaded fixed-hash v0.3.2
[INFO] [stderr]   Downloaded hex-literal v0.1.4
[INFO] [stderr]   Downloaded wasmi v0.4.5
[INFO] [stderr]   Downloaded regex v1.1.9
[INFO] [stderr]   Downloaded elastic-array v0.10.2
[INFO] [stderr]   Downloaded paste-impl v0.1.5
[INFO] [stderr]   Downloaded hmac-drbg v0.1.2
[INFO] [stderr]   Downloaded hmac v0.4.2
[INFO] [stderr]   Downloaded block-buffer v0.2.0
[INFO] [stderr]   Downloaded strum v0.14.0
[INFO] [stderr]   Downloaded paste v0.1.5
[INFO] [stderr]   Downloaded sha2 v0.6.0
[INFO] [stderr]   Downloaded crypto-mac v0.4.0
[INFO] [stderr]   Downloaded environmental v1.0.1
[INFO] [stderr]   Downloaded uint v0.7.1
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.8
[INFO] [stderr]   Downloaded strum_macros v0.14.0
[INFO] [stderr]   Downloaded proc-macro-hack-impl v0.4.1
[INFO] [stderr]   Downloaded impl-codec v0.2.0
[INFO] [stderr]   Downloaded digest v0.6.2
[INFO] [stderr]   Downloaded parity-util-mem v0.1.0
[INFO] [stderr]   Downloaded parity-codec-derive v3.3.0
[INFO] [stderr]   Downloaded ed25519-dalek v1.0.0-pre.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.8
[INFO] [stderr]   Downloaded merlin v1.1.0
[INFO] [stderr]   Downloaded impl-serde v0.2.0
[INFO] [stderr]   Downloaded subtle v2.1.0
[INFO] [stderr]   Downloaded trie-db v0.12.4
[INFO] [stderr]   Downloaded primitive-types v0.2.4
[INFO] [stderr]   Downloaded trie-root v0.12.4
[INFO] [stderr]   Downloaded twox-hash v1.4.2
[INFO] [stderr]   Downloaded hmac v0.7.0
[INFO] [stderr]   Downloaded curve25519-dalek v1.2.1
[INFO] [stderr]   Downloaded libsecp256k1 v0.2.2
[INFO] [stderr]   Downloaded proc-macro-hack v0.4.1
[INFO] [stderr]   Downloaded wasmi-validation v0.1.0
[INFO] [stderr]   Downloaded hash-db v0.12.4
[INFO] [stderr]   Downloaded hashmap_core v0.1.10
[INFO] [stderr]   Downloaded schnorrkel v0.1.1
[INFO] [stderr]   Downloaded parity-wasm v0.31.3
[INFO] [stderr]   Downloaded malloc_size_of_derive v0.1.0
[INFO] [stderr]   Downloaded generic-array v0.8.3
[INFO] [stderr]   Downloaded memory-db v0.12.4
[INFO] [stderr]   Downloaded hash256-std-hasher v0.12.4
[INFO] [stderr]   Downloaded hex-literal-impl v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8fc01741786f9bbedaabf0d941a11089b1e39430a37d27998dd6828926a8dc7
[INFO] running `Command { std: "docker" "start" "-a" "f8fc01741786f9bbedaabf0d941a11089b1e39430a37d27998dd6828926a8dc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8fc01741786f9bbedaabf0d941a11089b1e39430a37d27998dd6828926a8dc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8fc01741786f9bbedaabf0d941a11089b1e39430a37d27998dd6828926a8dc7", kill_on_drop: false }`
[INFO] [stdout] f8fc01741786f9bbedaabf0d941a11089b1e39430a37d27998dd6828926a8dc7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+18bd2dd5cda08b09ace6e37c1a0312e9b2bb4beb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2bc5ce3a78cf8890adf42ee0945d1e3fe2e6ae9faa4a2a440237f69ea7f384b6
[INFO] running `Command { std: "docker" "start" "-a" "2bc5ce3a78cf8890adf42ee0945d1e3fe2e6ae9faa4a2a440237f69ea7f384b6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "2bc5ce3a78cf8890adf42ee0945d1e3fe2e6ae9faa4a2a440237f69ea7f384b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bc5ce3a78cf8890adf42ee0945d1e3fe2e6ae9faa4a2a440237f69ea7f384b6", kill_on_drop: false }`
[INFO] [stdout] 2bc5ce3a78cf8890adf42ee0945d1e3fe2e6ae9faa4a2a440237f69ea7f384b6