fuzz: update the generate-files script to only discover and manage bins

diff --git a/fuzz/Cargo.toml b/fuzz/Cargo.toml
index 9d83382c..5f3f5c7b 100644
--- a/fuzz/Cargo.toml
+++ b/fuzz/Cargo.toml
@@ -1,3 +1,6 @@
+# The fuzz target [[bin]]s in this manifest are managed
+# by the ./generate-files.sh script.
+
 [package]
 name = "bitcoin-fuzz"
 edition = "2021"
@@ -55,749 +58,642 @@ path = "fuzz_targets/bitcoin/arbitrary_block.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_arbitrary_script"
 path = "fuzz_targets/bitcoin/arbitrary_script.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_arbitrary_transaction"
 path = "fuzz_targets/bitcoin/arbitrary_transaction.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_arbitrary_witness"
 path = "fuzz_targets/bitcoin/arbitrary_witness.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_compare_consensus_encoding"
 path = "fuzz_targets/bitcoin/compare_consensus_encoding.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_deserialize_block"
 path = "fuzz_targets/bitcoin/deserialize_block.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_deserialize_prefilled_transaction"
 path = "fuzz_targets/bitcoin/deserialize_prefilled_transaction.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_deserialize_script"
 path = "fuzz_targets/bitcoin/deserialize_script.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_deserialize_transaction"
 path = "fuzz_targets/bitcoin/deserialize_transaction.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_deserialize_witness"
 path = "fuzz_targets/bitcoin/deserialize_witness.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_absolute_lock_time"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/absolute_lock_time.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_amount"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/amount.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_block"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/block.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_block_hash"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/block_hash.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_block_header"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/block_header.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_block_height"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/block_height.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_block_time"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/block_time.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_block_version"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/block_version.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_compact_target"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/compact_target.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_out_point"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/out_point.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_address_addr_v1_message"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_address_addr_v1_message.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_address_addr_v2"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_address_addr_v2.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_address_addr_v2_message"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_address_addr_v2_message.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_address_address"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_address_address.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_bip152_block_transactions"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_bip152_block_transactions.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_bip152_block_transactions_request"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_bip152_block_transactions_request.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_bip152_header_and_short_ids"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_bip152_header_and_short_ids.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_bip152_prefilled_transaction"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_bip152_prefilled_transaction.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_bip152_short_id"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_bip152_short_id.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_magic"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_magic.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_merkle_tree_merkle_block"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_merkle_tree_merkle_block.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_merkle_tree_partial_merkle_tree"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_merkle_tree_partial_merkle_tree.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_addr_payload"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_addr_payload.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_addr_v2_payload"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_addr_v2_payload.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_blockdata_block_locator"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_blockdata_block_locator.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_blockdata_get_blocks_message"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_blockdata_get_blocks_message.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_blockdata_get_headers_message"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_blockdata_get_headers_message.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_blockdata_inventory"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_blockdata_inventory.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_bloom_bloom_flags"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_bloom_bloom_flags.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_bloom_filter_add"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_bloom_filter_add.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_bloom_filter_load"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_bloom_filter_load.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_command_string"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_command_string.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_compact_blocks_send_cmpct"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_compact_blocks_send_cmpct.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_erlay_send_tx_rcn_cl"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_erlay_send_tx_rcn_cl.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_fee_filter"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_fee_filter.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_filter_c_f_checkpt"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_filter_c_f_checkpt.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_filter_c_f_headers"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_filter_c_f_headers.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_filter_c_filter"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_filter_c_filter.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_filter_filter_hash"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_filter_filter_hash.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_filter_filter_header"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_filter_filter_header.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_filter_get_c_f_checkpt"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_filter_get_c_f_checkpt.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_filter_get_c_f_headers"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_filter_get_c_f_headers.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_filter_get_c_filters"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_filter_get_c_filters.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_headers_message"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_headers_message.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_inventory_payload"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_inventory_payload.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_network_alert"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_network_alert.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_network_header"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_network_header.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_network_reject"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_network_reject.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_network_reject_reason"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_network_reject_reason.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_network_user_agent"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_network_user_agent.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_network_version_message"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_network_version_message.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_ping"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_ping.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_pong"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_pong.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_v1_message_header"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_v1_message_header.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_message_v1_network_message"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_message_v1_network_message.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_protocol_version"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_protocol_version.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_p2p_service_flags"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/p2p_service_flags.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_redeem_script_buf"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/redeem_script_buf.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_script_pub_key_buf"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/script_pub_key_buf.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_script_sig_buf"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/script_sig_buf.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_sequence"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/sequence.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_tap_script_buf"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/tap_script_buf.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_transaction"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/transaction.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_transaction_version"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/transaction_version.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_tx_in"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/tx_in.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_tx_merkle_node"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/tx_merkle_node.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_tx_out"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/tx_out.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_witness"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/witness.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_witness_merkle_node"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/witness_merkle_node.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_encoding_roundtrip_witness_script_buf"
 path = "fuzz_targets/bitcoin/encoding_roundtrip/witness_script_buf.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_parse_address"
 path = "fuzz_targets/bitcoin/parse_address.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_parse_outpoint"
 path = "fuzz_targets/bitcoin/parse_outpoint.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_script_bytes_to_asm_fmt"
 path = "fuzz_targets/bitcoin/script_bytes_to_asm_fmt.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_0_32_compare_consensus_encoding"
 path = "fuzz_targets/bitcoin_0_32/compare_consensus_encoding.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_0_32_deser_net_msg"
 path = "fuzz_targets/bitcoin_0_32/deser_net_msg.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_0_32_deserialize_address"
 path = "fuzz_targets/bitcoin_0_32/deserialize_address.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_0_32_deserialize_psbt"
 path = "fuzz_targets/bitcoin_0_32/deserialize_psbt.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "bitcoin_0_32_outpoint_string"
 path = "fuzz_targets/bitcoin_0_32/outpoint_string.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "consensus_encoding_decode_array"
 path = "fuzz_targets/consensus_encoding/decode_array.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "consensus_encoding_decode_byte_vec"
 path = "fuzz_targets/consensus_encoding/decode_byte_vec.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "consensus_encoding_decode_compact_size"
 path = "fuzz_targets/consensus_encoding/decode_compact_size.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "consensus_encoding_decode_decoder2"
 path = "fuzz_targets/consensus_encoding/decode_decoder2.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "hashes_arbitrary_json"
 path = "fuzz_targets/hashes/arbitrary_json.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "hashes_json"
 path = "fuzz_targets/hashes/json.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "hashes_ripemd160"
 path = "fuzz_targets/hashes/ripemd160.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "hashes_sha1"
 path = "fuzz_targets/hashes/sha1.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "hashes_sha256"
 path = "fuzz_targets/hashes/sha256.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "hashes_sha512"
 path = "fuzz_targets/hashes/sha512.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "hashes_sha512_256"
 path = "fuzz_targets/hashes/sha512_256.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "hashes_0_32_cbor"
 path = "fuzz_targets/hashes_0_32/cbor.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "p2p_arbitrary_addrv2"
 path = "fuzz_targets/p2p/arbitrary_addrv2.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "p2p_deserialize_addrv2"
 path = "fuzz_targets/p2p/deserialize_addrv2.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "p2p_deserialize_raw_net_msg"
 path = "fuzz_targets/p2p/deserialize_raw_net_msg.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "units_arbitrary_weight"
 path = "fuzz_targets/units/arbitrary_weight.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "units_parse_amount"
 path = "fuzz_targets/units/parse_amount.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "units_parse_int"
 path = "fuzz_targets/units/parse_int.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "units_standard_checks"
 path = "fuzz_targets/units/standard_checks.rs"
 test = false
 doc = false
 bench = false
-
 [[bin]]
 name = "units_0_32_deserialize_amount"
 path = "fuzz_targets/units_0_32/deserialize_amount.rs"
diff --git a/fuzz/generate-files.sh b/fuzz/generate-files.sh
index 5b9a134c..96210345 100755
--- a/fuzz/generate-files.sh
+++ b/fuzz/generate-files.sh
@@ -1,4 +1,7 @@
 #!/usr/bin/env bash
+#
+# Discovers the [[bin]] fuzz targets for the fuzz/Cargo.toml,
+# while preserving the rest of the manifest.
 
 set -euo pipefail
 
@@ -9,69 +12,26 @@ REPO_DIR=$(git rev-parse --show-toplevel)
 source "$REPO_DIR/fuzz/fuzz-util.sh"
 source "$REPO_DIR/fuzz/generate-encoding-roundtrip.sh"
 
-# 1. Generate fuzz/Cargo.toml
-cat > "$REPO_DIR/fuzz/Cargo.toml" <<EOF
-[package]
-name = "bitcoin-fuzz"
-edition = "2021"
-rust-version = "1.74.0"
-version = "0.0.1"
-authors = ["Generated by fuzz/generate-files.sh"]
-publish = false
+CARGO_TOML="$REPO_DIR/fuzz/Cargo.toml"
+CARGO_TOML_TMP=$(mktemp)
+# Ensure cleanup on exit.
+trap 'rm -f "$CARGO_TOML_TMP"' EXIT
 
-[package.metadata]
-cargo-fuzz = true
-
-[dependencies]
-# We shouldn't need an explicit version on the next line, but Andrew's tools
-# choke on it otherwise. See https://github.com/nix-community/crate2nix/issues/373
-bitcoin = { path = "../bitcoin", version = "0.33.0-beta", features = [ "serde", "arbitrary" ] }
-bitcoin_0_32 = { version = "0.32.101", package = "bitcoin", features = [ "encoding", "serde" ] }
-bitcoin_consensus_encoding = { path = "../consensus_encoding", package = "bitcoin-consensus-encoding" }
-p2p = { path = "../p2p", package = "bitcoin-p2p-messages", features = ["arbitrary"] }
-
-arbitrary = { version = "1.4.1" }
-libfuzzer-sys = { version = "0.4.0" }
-serde = { version = "1.0.195", features = [ "derive" ] }
-serde_json = "1.0.68"
-serde_cbor = "0.9"
-standard_test = "0.1.0"
-
-[lints.rust]
-unexpected_cfgs = { level = "deny", check-cfg = ['cfg(fuzzing)'] }
-
-[lints.clippy]
-redundant_clone = "warn"
-use_self = "warn"
-
-[lib]
-name = "bitcoin_fuzz"
-path = "src/lib.rs"
-
-[package.metadata.rbmt.lint]
-allowed_duplicates = [
-    "hex-conservative",
-    "bitcoin_hashes",
-    "bitcoin-io",
-    "bitcoin-consensus-encoding",
-    "base58ck",
-    "bitcoin",
-    "bitcoin-internals",
-    "bitcoin-units",
-    "secp256k1",
-    "secp256k1-sys",
-]
-EOF
+# Extract the unmanged part of the manifest (everything before the first [[bin]]).
+awk '/^\[\[bin\]\]/{exit} {print}' "$CARGO_TOML" > "$CARGO_TOML_TMP"
 
+# Generate the [[bin]] sections.
 for targetFile in $(listTargetFiles); do
     targetName=$(targetFileToName "$targetFile")
-    cat >> "$REPO_DIR/fuzz/Cargo.toml" <<EOF
-
+    cat >> "$CARGO_TOML_TMP" <<EOF
 [[bin]]
 name = "$targetName"
 path = "$targetFile"
 test = false
 doc = false
 bench = false
+
 EOF
 done
+
+mv "$CARGO_TOML_TMP" "$CARGO_TOML"