[INFO] cloning repository https://github.com/arunjot12/Subxt-Transaction
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arunjot12/Subxt-Transaction" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farunjot12%2FSubxt-Transaction", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farunjot12%2FSubxt-Transaction'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f06dce5ed5808d84bb4d774292180932e998e2cf
[INFO] checking arunjot12/Subxt-Transaction against try#901e6d56697c79b2e80df6a487b2318ec6f57ee3 for pr-142287
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farunjot12%2FSubxt-Transaction" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arunjot12/Subxt-Transaction on toolchain 901e6d56697c79b2e80df6a487b2318ec6f57ee3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/arunjot12/Subxt-Transaction
[INFO] finished tweaking git repo https://github.com/arunjot12/Subxt-Transaction
[INFO] tweaked toml for git repo https://github.com/arunjot12/Subxt-Transaction written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/arunjot12/Subxt-Transaction 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" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96e26670a0edbd81335398f4e9f0672c0504cf420ad3e0e3cf89fb4a73f3900c
[INFO] running `Command { std: "docker" "start" "-a" "96e26670a0edbd81335398f4e9f0672c0504cf420ad3e0e3cf89fb4a73f3900c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96e26670a0edbd81335398f4e9f0672c0504cf420ad3e0e3cf89fb4a73f3900c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96e26670a0edbd81335398f4e9f0672c0504cf420ad3e0e3cf89fb4a73f3900c", kill_on_drop: false }`
[INFO] [stdout] 96e26670a0edbd81335398f4e9f0672c0504cf420ad3e0e3cf89fb4a73f3900c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e2c63e4961504ac28901d3f3305670940161cd095bfd9949db4b1c7869ec89c
[INFO] running `Command { std: "docker" "start" "-a" "3e2c63e4961504ac28901d3f3305670940161cd095bfd9949db4b1c7869ec89c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
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[INFO] [stderr]     Checking primitive-types v0.13.1
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[INFO] [stderr]    Compiling darling_macro v0.14.4
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[INFO] [stderr]    Compiling tokio-stream v0.1.17
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[INFO] [stderr]     Checking rustc-demangle v0.1.24
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[INFO] [stderr]    Compiling url v2.5.4
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[INFO] [stderr]    Compiling rustls-native-certs v0.6.3
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[INFO] [stderr]     Checking trie-root v0.18.0
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[INFO] [stderr]    Compiling derive_more v0.99.20
[INFO] [stderr]     Checking nohash-hasher v0.2.0
[INFO] [stdout] error[E0515]: cannot return value referencing temporary value
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/trie-db-0.30.0/src/node.rs:324:3
[INFO] [stdout]     |
[INFO] [stdout] 324 |         self.0.iter().chain(iter::repeat(&None)).take(nibble_ops::NIBBLE_LENGTH)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |                                 |
[INFO] [stdout]     |         |                                 temporary value created here
[INFO] [stdout]     |         returns a value referencing data owned by the current function
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `.collect()` to allocate the iterator
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tower-layer v0.3.3
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling tower v0.4.13
[INFO] [stderr]     Checking backtrace v0.3.75
[INFO] [stderr]    Compiling soketto v0.7.1
[INFO] [stdout] For more information about this error, try `rustc --explain E0515`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `trie-db` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3e2c63e4961504ac28901d3f3305670940161cd095bfd9949db4b1c7869ec89c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e2c63e4961504ac28901d3f3305670940161cd095bfd9949db4b1c7869ec89c", kill_on_drop: false }`
[INFO] [stdout] 3e2c63e4961504ac28901d3f3305670940161cd095bfd9949db4b1c7869ec89c