[INFO] fetching crate rusty-gadgets 0.1.0...
[INFO] checking rusty-gadgets-0.1.0 against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] extracting crate rusty-gadgets 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate rusty-gadgets 0.1.0
[INFO] finished tweaking crates.io crate rusty-gadgets 0.1.0
[INFO] tweaked toml for crates.io crate rusty-gadgets 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rusty-gadgets 0.1.0 on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "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" "+a5689b034ad287112f709693384a37f1377eb9cc" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 30 packages to highest compatible versions
[INFO] [stderr]       Adding itertools v0.8.2 (available: v0.15.0)
[INFO] [stderr]       Adding num v0.2.1 (available: v0.4.3)
[INFO] [stderr]       Adding rand v0.6.5 (available: v0.10.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 74801ba3c33ba52370d3f78f271afeeb442642942d326d024ee09310141852bb
[INFO] running `Command { std: "docker" "start" "74801ba3c33ba52370d3f78f271afeeb442642942d326d024ee09310141852bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74801ba3c33ba52370d3f78f271afeeb442642942d326d024ee09310141852bb", 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" "74801ba3c33ba52370d3f78f271afeeb442642942d326d024ee09310141852bb" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74801ba3c33ba52370d3f78f271afeeb442642942d326d024ee09310141852bb", 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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "74801ba3c33ba52370d3f78f271afeeb442642942d326d024ee09310141852bb" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.4.3
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking num-integer v0.1.47
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.3.2
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking num-iter v0.1.46
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking rusty-gadgets v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/witness_generator.rs:6:20
[INFO] [stdout]   |
[INFO] [stdout] 6 |     generator: Box<Fn(&mut WireValues)>,
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 |     generator: Box<dyn Fn(&mut WireValues)>,
[INFO] [stdout]   |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/witness_generator.rs:6:20
[INFO] [stdout]   |
[INFO] [stdout] 6 |     generator: Box<Fn(&mut WireValues)>,
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 |     generator: Box<dyn Fn(&mut WireValues)>,
[INFO] [stdout]   |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `LinearCombination`
[INFO] [stdout]   --> src/gadget_builder_compare.rs:57:33
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let x_bits = self.split(x.into(), bits);
[INFO] [stdout]    |                                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 57 -         let x_bits = self.split(x.into(), bits);
[INFO] [stdout] 57 +         let x_bits = self.split(x, bits);
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 57 -         let x_bits = self.split(x.into(), bits);
[INFO] [stdout] 57 +         let x_bits = self.split(<LinearCombination as Into<_>>::into(x), bits);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `LinearCombination`
[INFO] [stdout]   --> src/gadget_builder_compare.rs:58:33
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let y_bits = self.split(y.into(), bits);
[INFO] [stdout]    |                                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 58 -         let y_bits = self.split(y.into(), bits);
[INFO] [stdout] 58 +         let y_bits = self.split(y, bits);
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 58 -         let y_bits = self.split(y.into(), bits);
[INFO] [stdout] 58 +         let y_bits = self.split(<LinearCombination as Into<_>>::into(y), bits);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `LinearCombination`
[INFO] [stdout]   --> src/gadget_builder_split.rs:42:27
[INFO] [stdout]    |
[INFO] [stdout] 42 |         self.assert_equal(x.into(), weighted_sum);
[INFO] [stdout]    |                           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 42 -         self.assert_equal(x.into(), weighted_sum);
[INFO] [stdout] 42 +         self.assert_equal(x, weighted_sum);
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 42 -         self.assert_equal(x.into(), weighted_sum);
[INFO] [stdout] 42 +         self.assert_equal(<LinearCombination as Into<_>>::into(x), weighted_sum);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty-gadgets` (lib) due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: useless conversion to the same type: `LinearCombination`
[INFO] [stdout]   --> src/gadget_builder_compare.rs:57:33
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let x_bits = self.split(x.into(), bits);
[INFO] [stdout]    |                                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 57 -         let x_bits = self.split(x.into(), bits);
[INFO] [stdout] 57 +         let x_bits = self.split(x, bits);
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 57 -         let x_bits = self.split(x.into(), bits);
[INFO] [stdout] 57 +         let x_bits = self.split(<LinearCombination as Into<_>>::into(x), bits);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `LinearCombination`
[INFO] [stdout]   --> src/gadget_builder_compare.rs:58:33
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let y_bits = self.split(y.into(), bits);
[INFO] [stdout]    |                                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 58 -         let y_bits = self.split(y.into(), bits);
[INFO] [stdout] 58 +         let y_bits = self.split(y, bits);
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 58 -         let y_bits = self.split(y.into(), bits);
[INFO] [stdout] 58 +         let y_bits = self.split(<LinearCombination as Into<_>>::into(y), bits);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `LinearCombination`
[INFO] [stdout]   --> src/gadget_builder_split.rs:42:27
[INFO] [stdout]    |
[INFO] [stdout] 42 |         self.assert_equal(x.into(), weighted_sum);
[INFO] [stdout]    |                           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 42 -         self.assert_equal(x.into(), weighted_sum);
[INFO] [stdout] 42 +         self.assert_equal(x, weighted_sum);
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 42 -         self.assert_equal(x.into(), weighted_sum);
[INFO] [stdout] 42 +         self.assert_equal(<LinearCombination as Into<_>>::into(x), weighted_sum);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty-gadgets` (lib test) due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "74801ba3c33ba52370d3f78f271afeeb442642942d326d024ee09310141852bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74801ba3c33ba52370d3f78f271afeeb442642942d326d024ee09310141852bb", kill_on_drop: false }`
[INFO] [stdout] 74801ba3c33ba52370d3f78f271afeeb442642942d326d024ee09310141852bb
