[INFO] fetching crate centipede 0.3.1...
[INFO] checking centipede-0.3.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate centipede 0.3.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate centipede 0.3.1 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 crates.io crate centipede 0.3.1
[INFO] finished tweaking crates.io crate centipede 0.3.1
[INFO] tweaked toml for crates.io crate centipede 0.3.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 135 packages
[INFO] [stderr]       Adding autocfg v0.1.8 (latest: v1.2.0)
[INFO] [stderr]       Adding base16ct v0.1.1 (latest: v0.2.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding block-buffer v0.7.3 (latest: v0.10.4)
[INFO] [stderr]       Adding block-buffer v0.9.0 (latest: v0.10.4)
[INFO] [stderr]       Adding block-padding v0.1.5 (latest: v0.3.3)
[INFO] [stderr]       Adding block-padding v0.2.1 (latest: v0.3.3)
[INFO] [stderr]       Adding cast v0.2.7 (latest: v0.3.0)
[INFO] [stderr]       Adding clap v2.34.0 (latest: v4.5.4)
[INFO] [stderr]       Adding cloudabi v0.0.3 (latest: v0.1.0)
[INFO] [stderr]       Adding criterion v0.2.11 (latest: v0.5.1)
[INFO] [stderr]       Adding criterion-plot v0.3.1 (latest: v0.5.0)
[INFO] [stderr]       Adding crypto-bigint v0.4.9 (latest: v0.5.5)
[INFO] [stderr]       Adding cryptoxide v0.1.3 (latest: v0.4.4)
[INFO] [stderr]       Adding curve25519-dalek v3.2.0 (latest: v4.1.2)
[INFO] [stderr]       Adding der v0.6.1 (latest: v0.7.9)
[INFO] [stderr]       Adding digest v0.8.1 (latest: v0.10.7)
[INFO] [stderr]       Adding digest v0.9.0 (latest: v0.10.7)
[INFO] [stderr]       Adding ecdsa v0.14.8 (latest: v0.16.9)
[INFO] [stderr]       Adding elliptic-curve v0.12.3 (latest: v0.13.8)
[INFO] [stderr]       Adding ff v0.12.1 (latest: v0.13.0)
[INFO] [stderr]       Adding generic-array v0.12.4 (latest: v1.0.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding getrandom v0.1.16 (latest: v0.2.12)
[INFO] [stderr]       Adding group v0.12.1 (latest: v0.13.0)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.3.9)
[INFO] [stderr]       Adding hmac v0.11.0 (latest: v0.12.1)
[INFO] [stderr]       Adding itertools v0.7.11 (latest: v0.12.1)
[INFO] [stderr]       Adding itertools v0.8.2 (latest: v0.12.1)
[INFO] [stderr]       Adding num-bigint v0.2.6 (latest: v0.4.4)
[INFO] [stderr]       Adding opaque-debug v0.2.3 (latest: v0.3.1)
[INFO] [stderr]       Adding p256 v0.11.1 (latest: v0.13.2)
[INFO] [stderr]       Adding pkcs8 v0.9.0 (latest: v0.10.2)
[INFO] [stderr]       Adding rand v0.4.6 (latest: v0.8.5)
[INFO] [stderr]       Adding rand v0.6.5 (latest: v0.8.5)
[INFO] [stderr]       Adding rand v0.7.3 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.1.1 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_chacha v0.2.2 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.3.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.5.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.1.0 (latest: v0.3.2)
[INFO] [stderr]       Adding rand_hc v0.2.0 (latest: v0.3.2)
[INFO] [stderr]       Adding rand_isaac v0.1.1 (latest: v0.3.0)
[INFO] [stderr]       Adding rand_jitter v0.1.4 (latest: v0.4.0)
[INFO] [stderr]       Adding rand_os v0.1.3 (latest: v0.2.2)
[INFO] [stderr]       Adding rand_pcg v0.1.2 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_xorshift v0.1.1 (latest: v0.3.0)
[INFO] [stderr]       Adding rand_xorshift v0.2.0 (latest: v0.3.0)
[INFO] [stderr]       Adding rand_xoshiro v0.1.0 (latest: v0.6.0)
[INFO] [stderr]       Adding rdrand v0.4.0 (latest: v0.8.3)
[INFO] [stderr]       Adding rfc6979 v0.3.1 (latest: v0.4.0)
[INFO] [stderr]       Adding sec1 v0.3.0 (latest: v0.7.3)
[INFO] [stderr]       Adding secp256k1 v0.20.3 (latest: v0.29.0)
[INFO] [stderr]       Adding secp256k1-sys v0.4.2 (latest: v0.10.0)
[INFO] [stderr]       Adding sha2 v0.8.2 (latest: v0.10.8)
[INFO] [stderr]       Adding sha2 v0.9.9 (latest: v0.10.8)
[INFO] [stderr]       Adding sha3 v0.9.1 (latest: v0.10.8)
[INFO] [stderr]       Adding signature v1.6.4 (latest: v2.2.0)
[INFO] [stderr]       Adding spki v0.6.0 (latest: v0.7.3)
[INFO] [stderr]       Adding subtle v2.4.1 (latest: v2.5.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding textwrap v0.11.0 (latest: v0.16.1)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded ff_derive-zeroize v0.6.2
[INFO] [stderr]   Downloaded ff-zeroize v0.6.3
[INFO] [stderr]   Downloaded secp256k1 v0.20.3
[INFO] [stderr]   Downloaded p256 v0.11.1
[INFO] [stderr]   Downloaded rust-gmp-kzen v0.5.1
[INFO] [stderr]   Downloaded criterion-plot v0.3.1
[INFO] [stderr]   Downloaded merkle-cbt v0.3.2
[INFO] [stderr]   Downloaded bulletproof-kzen v1.2.1
[INFO] [stderr]   Downloaded ecdsa v0.14.8
[INFO] [stderr]   Downloaded crypto-bigint v0.4.9
[INFO] [stderr]   Downloaded itertools v0.7.11
[INFO] [stderr]   Downloaded cryptoxide v0.1.3
[INFO] [stderr]   Downloaded curv-kzen v0.10.0
[INFO] [stderr]   Downloaded pairing-plus v0.19.0
[INFO] [stderr]   Downloaded secp256k1-sys v0.4.2
[INFO] [stderr]   Downloaded criterion v0.2.11
[INFO] [stderr]   Downloaded rfc6979 v0.3.1
[INFO] [stderr]   Downloaded der v0.6.1
[INFO] [stderr]   Downloaded pkcs8 v0.9.0
[INFO] [stderr]   Downloaded elliptic-curve v0.12.3
[INFO] [stderr]   Downloaded rand_xoshiro v0.1.0
[INFO] [stderr]   Downloaded ff v0.12.1
[INFO] [stderr]   Downloaded group v0.12.1
[INFO] [stderr]   Downloaded base16ct v0.1.1
[INFO] [stderr]   Downloaded sec1 v0.3.0
[INFO] [stderr]   Downloaded spki v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 01ad0d26968dedef3b40fe29bac33b0d71c2586fee3305dd5801e1607f622af0
[INFO] running `Command { std: "docker" "start" "-a" "01ad0d26968dedef3b40fe29bac33b0d71c2586fee3305dd5801e1607f622af0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01ad0d26968dedef3b40fe29bac33b0d71c2586fee3305dd5801e1607f622af0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01ad0d26968dedef3b40fe29bac33b0d71c2586fee3305dd5801e1607f622af0", kill_on_drop: false }`
[INFO] [stdout] 01ad0d26968dedef3b40fe29bac33b0d71c2586fee3305dd5801e1607f622af0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8f005fda8e321da6a557f8ce9ab89636fb7b0db66aa3179dcc202c6c5c928576
[INFO] running `Command { std: "docker" "start" "-a" "8f005fda8e321da6a557f8ce9ab89636fb7b0db66aa3179dcc202c6c5c928576", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking const-oid v0.9.6
[INFO] [stderr]     Checking base64ct v1.6.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking base16ct v0.1.1
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling secp256k1-sys v0.4.2
[INFO] [stderr]     Checking num-traits v0.2.18
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking ff v0.12.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking group v0.12.1
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]     Checking block-padding v0.1.5
[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 rand_jitter v0.1.4
[INFO] [stderr]     Checking opaque-debug v0.3.1
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking keccak v0.1.5
[INFO] [stderr]     Checking merkle-cbt v0.3.2
[INFO] [stderr]     Checking cryptoxide v0.1.3
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]     Checking der v0.6.1
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking spki v0.6.0
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-bigint v0.4.9
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.11.1
[INFO] [stderr]     Checking pkcs8 v0.9.0
[INFO] [stderr]     Checking hmac v0.11.0
[INFO] [stderr]     Checking curve25519-dalek v3.2.0
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking sec1 v0.3.0
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking signature v1.6.4
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]    Compiling ff_derive-zeroize v0.6.2
[INFO] [stderr]     Checking elliptic-curve v0.12.3
[INFO] [stderr]     Checking rfc6979 v0.3.1
[INFO] [stderr]     Checking ecdsa v0.14.8
[INFO] [stderr]     Checking p256 v0.11.1
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking ff-zeroize v0.6.3
[INFO] [stderr]     Checking pairing-plus v0.19.0
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking secp256k1 v0.20.3
[INFO] [stderr]     Checking serde_bytes v0.11.14
[INFO] [stderr]     Checking rust-gmp-kzen v0.5.1
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking curv-kzen v0.10.0
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Checking bulletproof-kzen v1.2.1
[INFO] [stderr]     Checking centipede v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Secp256k1` is imported redundantly
[INFO] [stdout]    --> src/juggling/proof_system.rs:306:34
[INFO] [stdout]     |
[INFO] [stdout] 306 |     use curv::elliptic::curves::{secp256_k1::Secp256k1, Point, Scalar};
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 307 |     use juggling::proof_system::*;
[INFO] [stdout]     |         ------------------------- the item `Secp256k1` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Point` is imported redundantly
[INFO] [stdout]    --> src/juggling/proof_system.rs:306:57
[INFO] [stdout]     |
[INFO] [stdout] 306 |     use curv::elliptic::curves::{secp256_k1::Secp256k1, Point, Scalar};
[INFO] [stdout]     |                                                         ^^^^^
[INFO] [stdout] 307 |     use juggling::proof_system::*;
[INFO] [stdout]     |         ------------------------- the item `Point` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Scalar` is imported redundantly
[INFO] [stdout]    --> src/juggling/proof_system.rs:306:64
[INFO] [stdout]     |
[INFO] [stdout] 306 |     use curv::elliptic::curves::{secp256_k1::Secp256k1, Point, Scalar};
[INFO] [stdout]     |                                                                ^^^^^^
[INFO] [stdout] 307 |     use juggling::proof_system::*;
[INFO] [stdout]     |         ------------------------- the item `Scalar` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Msegmentation` is imported redundantly
[INFO] [stdout]    --> src/juggling/proof_system.rs:308:9
[INFO] [stdout]     |
[INFO] [stdout] 307 |     use juggling::proof_system::*;
[INFO] [stdout]     |         ------------------------- the item `Msegmentation` is already imported here
[INFO] [stdout] 308 |     use juggling::segmentation::Msegmentation;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.33s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.2.11
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "8f005fda8e321da6a557f8ce9ab89636fb7b0db66aa3179dcc202c6c5c928576", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f005fda8e321da6a557f8ce9ab89636fb7b0db66aa3179dcc202c6c5c928576", kill_on_drop: false }`
[INFO] [stdout] 8f005fda8e321da6a557f8ce9ab89636fb7b0db66aa3179dcc202c6c5c928576