[INFO] fetching crate Cupcake 0.2.1...
[INFO] checking Cupcake-0.2.1 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate Cupcake 0.2.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate Cupcake 0.2.1 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate Cupcake 0.2.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate Cupcake 0.2.1
[INFO] tweaked toml for crates.io crate Cupcake 0.2.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate Cupcake 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49deb707418ea89d93901867260187720e26b0e14c7c6969f0d1e428ff686353
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "49deb707418ea89d93901867260187720e26b0e14c7c6969f0d1e428ff686353", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49deb707418ea89d93901867260187720e26b0e14c7c6969f0d1e428ff686353", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49deb707418ea89d93901867260187720e26b0e14c7c6969f0d1e428ff686353", kill_on_drop: false }`
[INFO] [stdout] 49deb707418ea89d93901867260187720e26b0e14c7c6969f0d1e428ff686353
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be86a385e9549d335c0e73da1db6d6b5aa13f46116aa20e1a4f9d2b1f64c9fe5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "be86a385e9549d335c0e73da1db6d6b5aa13f46116aa20e1a4f9d2b1f64c9fe5", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking modinverse v0.1.1
[INFO] [stderr]     Checking Cupcake v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:229:23
[INFO] [stdout]     |
[INFO] [stdout] 229 |     lazy_butterfly_0: ([0u64, 1u64, 0u64, 100u64]),
[INFO] [stdout]     |                       ^                          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 229 -     lazy_butterfly_0: ([0u64, 1u64, 0u64, 100u64]),
[INFO] [stdout] 229 +     lazy_butterfly_0: [0u64, 1u64, 0u64, 100u64],
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:230:23
[INFO] [stdout]     |
[INFO] [stdout] 230 |     lazy_butterfly_1: ([1u64, 1u64, 1u64, 100u64]),
[INFO] [stdout]     |                       ^                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 230 -     lazy_butterfly_1: ([1u64, 1u64, 1u64, 100u64]),
[INFO] [stdout] 230 +     lazy_butterfly_1: [1u64, 1u64, 1u64, 100u64],
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:231:23
[INFO] [stdout]     |
[INFO] [stdout] 231 |     lazy_butterfly_2: ([50u64, 50u64, 1u64, 100u64]),
[INFO] [stdout]     |                       ^                            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 231 -     lazy_butterfly_2: ([50u64, 50u64, 1u64, 100u64]),
[INFO] [stdout] 231 +     lazy_butterfly_2: [50u64, 50u64, 1u64, 100u64],
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:232:23
[INFO] [stdout]     |
[INFO] [stdout] 232 |     lazy_butterfly_3: ([1u64, 1u64, 50u64, 100u64]),
[INFO] [stdout]     |                       ^                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 232 -     lazy_butterfly_3: ([1u64, 1u64, 50u64, 100u64]),
[INFO] [stdout] 232 +     lazy_butterfly_3: [1u64, 1u64, 50u64, 100u64],
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:236:31
[INFO] [stdout]     |
[INFO] [stdout] 236 |     lazy_inverse_butterfly_0: ([0u64, 1u64, 0u64, 100u64]),
[INFO] [stdout]     |                               ^                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 236 -     lazy_inverse_butterfly_0: ([0u64, 1u64, 0u64, 100u64]),
[INFO] [stdout] 236 +     lazy_inverse_butterfly_0: [0u64, 1u64, 0u64, 100u64],
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:237:31
[INFO] [stdout]     |
[INFO] [stdout] 237 |     lazy_inverse_butterfly_1: ([1u64, 1u64, 1u64, 100u64]),
[INFO] [stdout]     |                               ^                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 237 -     lazy_inverse_butterfly_1: ([1u64, 1u64, 1u64, 100u64]),
[INFO] [stdout] 237 +     lazy_inverse_butterfly_1: [1u64, 1u64, 1u64, 100u64],
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:238:31
[INFO] [stdout]     |
[INFO] [stdout] 238 |     lazy_inverse_butterfly_2: ([50u64, 50u64, 1u64, 100u64]),
[INFO] [stdout]     |                               ^                            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 238 -     lazy_inverse_butterfly_2: ([50u64, 50u64, 1u64, 100u64]),
[INFO] [stdout] 238 +     lazy_inverse_butterfly_2: [50u64, 50u64, 1u64, 100u64],
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:239:31
[INFO] [stdout]     |
[INFO] [stdout] 239 |     lazy_inverse_butterfly_3: ([1u64, 1u64, 50u64, 100u64]),
[INFO] [stdout]     |                               ^                           ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 239 -     lazy_inverse_butterfly_3: ([1u64, 1u64, 50u64, 100u64]),
[INFO] [stdout] 239 +     lazy_inverse_butterfly_3: [1u64, 1u64, 50u64, 100u64],
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `cupcake::integer_arith::butterfly::lazy_butterfly`
[INFO] [stdout]  --> benches/butterfly.rs:9:35
[INFO] [stdout]   |
[INFO] [stdout] 9 |     butterfly, inverse_butterfly, lazy_butterfly, lazy_butterfly_u64,
[INFO] [stdout]   |                                   ^^^^^^^^^^^^^^
[INFO] [stdout]   |                                   |
[INFO] [stdout]   |                                   no `lazy_butterfly` in `integer_arith::butterfly`
[INFO] [stdout]   |                                   help: a similar name exists in the module: `lazy_butterfly_u64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `Cupcake` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable `X` should have a snake case name
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:108:15
[INFO] [stdout]     |
[INFO] [stdout] 108 |       let mut X:Scalar = Scalar::from(arr[0]);
[INFO] [stdout]     |               ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Y` should have a snake case name
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:109:15
[INFO] [stdout]     |
[INFO] [stdout] 109 |       let mut Y:Scalar = Scalar::from(arr[1]);
[INFO] [stdout]     |               ^ help: convert the identifier to snake case (notice the capitalization): `y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `W` should have a snake case name
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:110:11
[INFO] [stdout]     |
[INFO] [stdout] 110 |       let W:Scalar = Scalar::from(arr[2]);
[INFO] [stdout]     |           ^ help: convert the identifier to snake case (notice the capitalization): `w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `X` should have a snake case name
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:118:15
[INFO] [stdout]     |
[INFO] [stdout] 118 |       let mut X:Scalar = Scalar::from(arr[0]);
[INFO] [stdout]     |               ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Y` should have a snake case name
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:119:15
[INFO] [stdout]     |
[INFO] [stdout] 119 |       let mut Y:Scalar = Scalar::from(arr[1]);
[INFO] [stdout]     |               ^ help: convert the identifier to snake case (notice the capitalization): `y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `W` should have a snake case name
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:120:11
[INFO] [stdout]     |
[INFO] [stdout] 120 |       let W:Scalar = Scalar::from(arr[2]);
[INFO] [stdout]     |           ^ help: convert the identifier to snake case (notice the capitalization): `w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `X` should have a snake case name
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:128:15
[INFO] [stdout]     |
[INFO] [stdout] 128 |       let mut X:Scalar = Scalar::from(arr[0]);
[INFO] [stdout]     |               ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Y` should have a snake case name
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:129:15
[INFO] [stdout]     |
[INFO] [stdout] 129 |       let mut Y:Scalar = Scalar::from(arr[1]);
[INFO] [stdout]     |               ^ help: convert the identifier to snake case (notice the capitalization): `y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `W` should have a snake case name
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:130:11
[INFO] [stdout]     |
[INFO] [stdout] 130 |       let W = arr[2];
[INFO] [stdout]     |           ^ help: convert the identifier to snake case (notice the capitalization): `w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Wprime` should have a snake case name
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:133:11
[INFO] [stdout]     |
[INFO] [stdout] 133 |       let Wprime: u64 = super::super::util::compute_harvey_ratio(W, q.rep());
[INFO] [stdout]     |           ^^^^^^ help: convert the identifier to snake case (notice the capitalization): `wprime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `X` should have a snake case name
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:141:15
[INFO] [stdout]     |
[INFO] [stdout] 141 |       let mut X:Scalar = Scalar::from(arr[0]);
[INFO] [stdout]     |               ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Y` should have a snake case name
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:142:15
[INFO] [stdout]     |
[INFO] [stdout] 142 |       let mut Y:Scalar = Scalar::from(arr[1]);
[INFO] [stdout]     |               ^ help: convert the identifier to snake case (notice the capitalization): `y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `W` should have a snake case name
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:143:11
[INFO] [stdout]     |
[INFO] [stdout] 143 |       let W = arr[2];
[INFO] [stdout]     |           ^ help: convert the identifier to snake case (notice the capitalization): `w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Wprime` should have a snake case name
[INFO] [stdout]    --> src/integer_arith/butterfly.rs:146:11
[INFO] [stdout]     |
[INFO] [stdout] 146 |       let Wprime: u64 = super::super::util::compute_harvey_ratio(W, q.rep());
[INFO] [stdout]     |           ^^^^^^ help: convert the identifier to snake case (notice the capitalization): `wprime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "be86a385e9549d335c0e73da1db6d6b5aa13f46116aa20e1a4f9d2b1f64c9fe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be86a385e9549d335c0e73da1db6d6b5aa13f46116aa20e1a4f9d2b1f64c9fe5", kill_on_drop: false }`
[INFO] [stdout] be86a385e9549d335c0e73da1db6d6b5aa13f46116aa20e1a4f9d2b1f64c9fe5