[INFO] fetching crate tp-election-providers 2.0.2... [INFO] testing tp-election-providers-2.0.2 against 1.100.0-beta.1 for beta-1.100-2 [INFO] extracting crate tp-election-providers 2.0.2 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate tp-election-providers 2.0.2 [INFO] finished tweaking crates.io crate tp-election-providers 2.0.2 [INFO] tweaked toml for crates.io crate tp-election-providers 2.0.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate tp-election-providers 2.0.2 on toolchain 1.100.0-beta.1 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 232 packages to highest compatible versions [INFO] [stderr] Adding zeroize v1.3.0 (available: v1.9.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }` [INFO] [stdout] fa4d3fbf83e814175ba89b6adecb062409c14975f1dc083ebd90c35b7d84a2df [INFO] running `Command { std: "docker" "start" "fa4d3fbf83e814175ba89b6adecb062409c14975f1dc083ebd90c35b7d84a2df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fa4d3fbf83e814175ba89b6adecb062409c14975f1dc083ebd90c35b7d84a2df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "fa4d3fbf83e814175ba89b6adecb062409c14975f1dc083ebd90c35b7d84a2df" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fa4d3fbf83e814175ba89b6adecb062409c14975f1dc083ebd90c35b7d84a2df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "fa4d3fbf83e814175ba89b6adecb062409c14975f1dc083ebd90c35b7d84a2df" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.229 [INFO] [stderr] Compiling syn v2.0.119 [INFO] [stderr] Compiling byteorder v1.5.0 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Compiling radium v0.6.2 [INFO] [stderr] Compiling arrayvec v0.5.2 [INFO] [stderr] Compiling generic-array v0.12.4 [INFO] [stderr] Compiling funty v1.1.0 [INFO] [stderr] Compiling wyz v0.2.0 [INFO] [stderr] Compiling tap v1.0.1 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling byte-slice-cast v1.2.3 [INFO] [stderr] Compiling subtle v2.6.1 [INFO] [stderr] Compiling getrandom v0.2.17 [INFO] [stderr] Compiling bitvec v0.20.4 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling digest v0.8.1 [INFO] [stderr] Compiling rand_pcg v0.2.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling smallvec v1.16.2 [INFO] [stderr] Compiling tetcore-std v2.1.2 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling subtle v1.0.0 [INFO] [stderr] Compiling crypto-mac v0.7.0 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling num-integer v0.1.47 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling ref-cast v1.0.27 [INFO] [stderr] Compiling rand v0.8.8 [INFO] [stderr] Compiling toml v0.5.11 [INFO] [stderr] Compiling regex-syntax v0.6.29 [INFO] [stderr] Compiling block-buffer v0.7.3 [INFO] [stderr] Compiling debug-derive v2.1.2 [INFO] [stderr] Compiling ref-cast-impl v1.0.27 [INFO] [stderr] Compiling rustc-hex v2.1.0 [INFO] [stderr] Compiling tetsy-wasm v0.41.0 [INFO] [stderr] Compiling hex v0.4.3 [INFO] [stderr] Compiling proc-macro-crate v0.1.5 [INFO] [stderr] Compiling futures-core v0.3.34 [INFO] [stderr] Compiling tracing-log v0.1.4 [INFO] [stderr] Compiling sha2 v0.8.2 [INFO] [stderr] Compiling chrono v0.4.45 [INFO] [stderr] Compiling tetsy-scale-codec-derive v2.0.1 [INFO] [stderr] Compiling futures-channel v0.3.34 [INFO] [stderr] Compiling regex-automata v0.1.10 [INFO] [stderr] Compiling uint-crate v0.9.1 [INFO] [stderr] Compiling twasmi-validation v0.3.0 [INFO] [stderr] Compiling tetsy-fixed-hash v0.7.1 [INFO] [stderr] Compiling serde_json v1.0.151 [INFO] [stderr] Compiling tetsy-scale-codec v2.0.1 [INFO] [stderr] Compiling matchers v0.0.1 [INFO] [stderr] Compiling impl-serde v0.3.2 [INFO] [stderr] Compiling tetsy-impl-serde v0.3.2 [INFO] [stderr] Compiling tracing-serde v0.1.3 [INFO] [stderr] Compiling hmac v0.7.1 [INFO] [stderr] Compiling sharded-slab v0.1.7 [INFO] [stderr] Compiling tracing v0.1.44 [INFO] [stderr] Compiling crypto-mac v0.8.0 [INFO] [stderr] Compiling thread_local v1.1.10 [INFO] [stderr] Compiling futures-macro v0.3.34 [INFO] [stderr] Compiling downcast-rs v1.2.1 [INFO] [stderr] Compiling memory_units v0.3.0 [INFO] [stderr] Compiling synstructure v0.12.6 [INFO] [stderr] Compiling sha2 v0.9.9 [INFO] [stderr] Compiling twasmi v0.6.2 [INFO] [stderr] Compiling tracing-subscriber v0.2.25 [INFO] [stderr] Compiling parking_lot_core v0.8.6 [INFO] [stderr] Compiling futures-util v0.3.34 [INFO] [stderr] Compiling Inflector v0.11.4 [INFO] [stderr] Compiling ahash v0.4.8 [INFO] [stderr] Compiling tiny-keccak v2.0.2 [INFO] [stderr] Compiling tetsy-util-mem v0.9.1 [INFO] [stderr] Compiling environ v1.1.3 [INFO] [stderr] Compiling signature v1.6.4 [INFO] [stderr] Compiling ed25519 v1.5.3 [INFO] [stderr] Compiling tp-runtime-interface-proc-macro v2.1.2 [INFO] [stderr] Compiling hashbrown v0.9.1 [INFO] [stderr] Compiling tetsy-impl-codec v0.5.1 [INFO] [stderr] Compiling tetsy-primitive-types v0.9.1 [INFO] [stderr] Compiling tetcore-storage v2.1.2 [INFO] [stderr] Compiling externalities v2.1.2 [INFO] [stderr] Compiling parking_lot v0.11.2 [INFO] [stderr] Compiling tetsy-util-mem-derive v0.1.1 [INFO] [stderr] Compiling hmac v0.8.1 [INFO] [stderr] Compiling pbkdf2 v0.4.0 [INFO] [stderr] Compiling hmac-drbg v0.2.0 [INFO] [stderr] Compiling pbkdf2 v0.3.0 [INFO] [stderr] Compiling constant_time_eq v0.1.5 [INFO] [stderr] Compiling libsecp256k1 v0.3.5 [INFO] [stderr] Compiling blake2-rfc v0.2.18 [INFO] [stderr] Compiling twox-hash v1.6.3 [INFO] [stderr] Compiling tetcore-tracing v2.1.2 [INFO] [stderr] Compiling zeroize_derive v1.5.0 [INFO] [stderr] Compiling impl-trait-for-tuples v0.2.3 [INFO] [stderr] Compiling zeroize v1.3.0 [INFO] [stderr] Compiling curve25519-dalek v2.1.3 [INFO] [stderr] Compiling merlin v2.0.1 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling curve25519-dalek v3.2.1 [INFO] [stderr] Compiling schnorrkel v0.9.1 [INFO] [stderr] Compiling dyn-clonable-impl v0.9.2 [INFO] [stderr] Compiling futures-executor v0.3.34 [INFO] [stderr] Compiling ed25519-dalek v1.0.1 [INFO] [stderr] Compiling dyn-clonable v0.9.2 [INFO] [stderr] Compiling secrecy v0.7.0 [INFO] [stderr] Compiling tetcore-wasm-interface v2.1.2 [INFO] [stderr] Compiling thiserror v1.0.69 [INFO] [stderr] Compiling futures v0.3.34 [INFO] [stderr] Compiling tiny-bip39 v0.8.2 [INFO] [stderr] Compiling tetcore-bip39 v0.4.2 [INFO] [stderr] Compiling tetsy-hash256-std-hasher v0.15.3 [INFO] [stderr] Compiling integer-sqrt v0.1.5 [INFO] [stderr] Compiling base58 v0.1.0 [INFO] [stderr] Compiling tetsy-hash-db v0.15.3 [INFO] [stderr] Compiling arithmetic v2.1.2 [INFO] [stderr] Compiling tp-npos-elections-compact v2.0.2 [INFO] [stderr] Compiling tp-runtime-interface v2.1.2 [INFO] [stderr] Compiling tet-core v2.1.2 [INFO] [stderr] Compiling tp-npos-elections v2.0.2 [INFO] [stdout] error[E0277]: a value of type `!` cannot be built from an iterator over elements of type `()` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tp-npos-elections-2.0.2/src/helpers.rs:57:14 [INFO] [stdout] | [INFO] [stdout] 57 | .collect::>()?; [INFO] [stdout] | ------- ^^^^^^^^^^^^ value of type `!` cannot be built from `std::iter::Iterator` [INFO] [stdout] | | [INFO] [stdout] | required by a bound introduced by this call [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromIterator<()>` is not implemented for `!` [INFO] [stdout] help: the trait `FromIterator>` is conditionally implemented for `Result` [INFO] [stdout] --> /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/result.rs:2114:14 [INFO] [stdout] | [INFO] [stdout] = note: unsatisfied requirement introduced here: `!: FromIterator<()>` [INFO] [stdout] = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 for more information) [INFO] [stdout] = help: you might have intended to use the type `()` here instead [INFO] [stdout] = note: required for `Result` to implement `FromIterator>` [INFO] [stdout] note: required by a bound in `collect` [INFO] [stdout] --> /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/iter/traits/iterator.rs:2087:4 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: a value of type `!` cannot be built from an iterator over elements of type `()` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tp-npos-elections-2.0.2/src/helpers.rs:78:14 [INFO] [stdout] | [INFO] [stdout] 78 | .collect::>()?; [INFO] [stdout] | ------- ^^^^^^^^^^^^ value of type `!` cannot be built from `std::iter::Iterator` [INFO] [stdout] | | [INFO] [stdout] | required by a bound introduced by this call [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromIterator<()>` is not implemented for `!` [INFO] [stdout] help: the trait `FromIterator>` is conditionally implemented for `Result` [INFO] [stdout] --> /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/result.rs:2114:14 [INFO] [stdout] | [INFO] [stdout] = note: unsatisfied requirement introduced here: `!: FromIterator<()>` [INFO] [stdout] = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 for more information) [INFO] [stdout] = help: you might have intended to use the type `()` here instead [INFO] [stdout] = note: required for `Result` to implement `FromIterator>` [INFO] [stdout] note: required by a bound in `collect` [INFO] [stdout] --> /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/iter/traits/iterator.rs:2087:4 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `tp-npos-elections` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "fa4d3fbf83e814175ba89b6adecb062409c14975f1dc083ebd90c35b7d84a2df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fa4d3fbf83e814175ba89b6adecb062409c14975f1dc083ebd90c35b7d84a2df", kill_on_drop: false }` [INFO] [stdout] fa4d3fbf83e814175ba89b6adecb062409c14975f1dc083ebd90c35b7d84a2df