[INFO] cloning repository https://github.com/trevor-crypto/acala-repro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/trevor-crypto/acala-repro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrevor-crypto%2Facala-repro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrevor-crypto%2Facala-repro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 476cd5d02094309481634e1e9920701af9d586d2
[INFO] checking trevor-crypto/acala-repro against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrevor-crypto%2Facala-repro" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/trevor-crypto/acala-repro on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/trevor-crypto/acala-repro
[INFO] finished tweaking git repo https://github.com/trevor-crypto/acala-repro
[INFO] tweaked toml for git repo https://github.com/trevor-crypto/acala-repro written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/trevor-crypto/acala-repro 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror v1.0.57
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cc5899157777bd10bd5994fe54cf82c8d57cfc678e6283d94a26d4dc3394cbe
[INFO] running `Command { std: "docker" "start" "-a" "3cc5899157777bd10bd5994fe54cf82c8d57cfc678e6283d94a26d4dc3394cbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cc5899157777bd10bd5994fe54cf82c8d57cfc678e6283d94a26d4dc3394cbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cc5899157777bd10bd5994fe54cf82c8d57cfc678e6283d94a26d4dc3394cbe", kill_on_drop: false }`
[INFO] [stdout] 3cc5899157777bd10bd5994fe54cf82c8d57cfc678e6283d94a26d4dc3394cbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 668afb66a80042bccb789688d76cf38521827a791cb34d32e4194089e2def818
[INFO] running `Command { std: "docker" "start" "-a" "668afb66a80042bccb789688d76cf38521827a791cb34d32e4194089e2def818", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking byte-slice-cast v1.2.2
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking keccak v0.1.5
[INFO] [stderr]     Checking arrayref v0.3.7
[INFO] [stderr]    Compiling fs-err v2.11.0
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]    Compiling libsecp256k1-core v0.3.0
[INFO] [stderr]     Checking sp-std v14.0.0
[INFO] [stderr]    Compiling ref-cast v1.0.22
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]     Checking constant_time_eq v0.3.0
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling expander v2.0.0
[INFO] [stderr]    Compiling ryu v1.0.17
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]    Compiling platforms v3.3.0
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling indexmap v2.2.3
[INFO] [stderr]    Compiling blake2 v0.10.6
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking blake2b_simd v1.0.2
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]     Checking twox-hash v1.6.3
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking uint v0.9.5
[INFO] [stderr]     Checking fixed-hash v0.8.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]    Compiling syn v2.0.50
[INFO] [stderr]    Compiling curve25519-dalek v4.1.2
[INFO] [stderr]     Checking environmental v1.1.4
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling libsecp256k1-gen-genmult v0.3.0
[INFO] [stderr]    Compiling libsecp256k1-gen-ecmult v0.3.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking getrandom_or_panic v0.0.3
[INFO] [stderr]     Checking bitcoin_hashes v0.11.0
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking sp-core-hashing v15.0.0
[INFO] [stderr]     Checking sp-crypto-hashing v0.1.0
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[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking hash-db v0.16.0
[INFO] [stderr]     Checking bs58 v0.5.0
[INFO] [stderr]     Checking array-bytes v6.2.2
[INFO] [stderr]    Compiling libsecp256k1 v0.7.1
[INFO] [stderr]    Compiling regex-automata v0.4.5
[INFO] [stderr]    Compiling secp256k1-sys v0.9.2
[INFO] [stderr]    Compiling toml_edit v0.20.7
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling toml_edit v0.21.1
[INFO] [stderr]     Checking bip39 v2.0.0
[INFO] [stderr]    Compiling proc-macro-crate v3.1.0
[INFO] [stderr]    Compiling proc-macro-crate v2.0.0
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling ref-cast-impl v1.0.22
[INFO] [stderr]    Compiling sp-debug-derive v14.0.0
[INFO] [stderr]    Compiling curve25519-dalek-derive v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling sp-runtime-interface-proc-macro v17.0.0
[INFO] [stderr]     Checking secp256k1 v0.28.2
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.2
[INFO] [stderr]    Compiling parity-scale-codec-derive v3.6.9
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling scale-info-derive v2.10.0
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]     Checking merlin v3.0.0
[INFO] [stderr]     Checking curve25519-dalek v3.2.0
[INFO] [stderr]     Checking secrecy v0.8.0
[INFO] [stderr]     Checking ed25519-zebra v3.1.0
[INFO] [stderr]     Checking schnorrkel v0.11.4
[INFO] [stderr]     Checking parity-scale-codec v3.6.9
[INFO] [stderr]     Checking impl-serde v0.4.0
[INFO] [stderr]     Checking scale-info v2.10.0
[INFO] [stderr]     Checking sp-storage v20.0.0
[INFO] [stderr]     Checking impl-codec v0.6.0
[INFO] [stderr]     Checking sp-wasm-interface v20.0.0
[INFO] [stderr]     Checking sp-tracing v16.0.0
[INFO] [stderr]     Checking sp-externalities v0.26.0
[INFO] [stderr]    Compiling ss58-registry v1.46.0
[INFO] [stderr]     Checking primitive-types v0.12.2
[INFO] [stderr]     Checking bounded-collections v0.2.0
[INFO] [stderr]     Checking frame-metadata v16.0.0
[INFO] [stderr]     Checking sp-runtime-interface v25.0.0
[INFO] [stderr]     Checking sp-core v29.0.0
[INFO] [stderr]     Checking subxt-metadata v0.34.0
[INFO] [stderr]     Checking acala-repro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `metadata`
[INFO] [stdout]   --> src/main.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let metadata: Metadata = Decode::decode(&mut decoded.as_slice())?;
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metadata`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metadata`
[INFO] [stdout]   --> src/main.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let metadata: Metadata = Decode::decode(&mut decoded.as_slice())?;
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metadata`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.87s
[INFO] running `Command { std: "docker" "inspect" "668afb66a80042bccb789688d76cf38521827a791cb34d32e4194089e2def818", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "668afb66a80042bccb789688d76cf38521827a791cb34d32e4194089e2def818", kill_on_drop: false }`
[INFO] [stdout] 668afb66a80042bccb789688d76cf38521827a791cb34d32e4194089e2def818