[INFO] cloning repository https://github.com/rail44/programming-bitcoin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rail44/programming-bitcoin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frail44%2Fprogramming-bitcoin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frail44%2Fprogramming-bitcoin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 234457d7771a604c42bb0c53382372c1df803aca
[INFO] testing rail44/programming-bitcoin against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frail44%2Fprogramming-bitcoin" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rail44/programming-bitcoin on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/rail44/programming-bitcoin
[INFO] finished tweaking git repo https://github.com/rail44/programming-bitcoin
[INFO] tweaked toml for git repo https://github.com/rail44/programming-bitcoin written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/rail44/programming-bitcoin already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d57692bc1c8336cfddc7430f3c958826a81d5c9857068fcce721e4ba990e35f2
[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" "d57692bc1c8336cfddc7430f3c958826a81d5c9857068fcce721e4ba990e35f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d57692bc1c8336cfddc7430f3c958826a81d5c9857068fcce721e4ba990e35f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d57692bc1c8336cfddc7430f3c958826a81d5c9857068fcce721e4ba990e35f2", kill_on_drop: false }`
[INFO] [stdout] d57692bc1c8336cfddc7430f3c958826a81d5c9857068fcce721e4ba990e35f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae05e8d7ee387291f78659161fb6475280b3aa652435f2ed035c72a51926fb54
[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" "ae05e8d7ee387291f78659161fb6475280b3aa652435f2ed035c72a51926fb54", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-bigint v0.3.2
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling ripemd160 v0.9.1
[INFO] [stderr]    Compiling sha2 v0.9.5
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling programming-bitcoin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BigInt`, `Sign`
[INFO] [stdout]  --> src/transaction.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num_bigint::{BigInt, Sign};
[INFO] [stdout]   |                  ^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reader`
[INFO] [stdout]    --> src/transaction.rs:167:21
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn parse<R>(reader: &mut R) -> Self
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reader`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reader`
[INFO] [stdout]    --> src/transaction.rs:187:21
[INFO] [stdout]     |
[INFO] [stdout] 187 |     pub fn parse<R>(reader: &mut R) -> Self
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reader`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `BASE58_ALPHABET`
[INFO] [stdout]  --> src/helper.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | static BASE58_ALPHABET: &str = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `encode_base58`
[INFO] [stdout]   --> src/helper.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn encode_base58(bytes: &[u8]) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hash256`
[INFO] [stdout]   --> src/helper.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn hash256(b: &[u8]) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `encode_base58_checksum`
[INFO] [stdout]   --> src/helper.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn encode_base58_checksum(b: &[u8]) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hash160`
[INFO] [stdout]   --> src/helper.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn hash160(s: &[u8]) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_variant`
[INFO] [stdout]   --> src/helper.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn read_variant<R>(reader: &mut R) -> u64
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `encode_variant`
[INFO] [stdout]   --> src/helper.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub fn encode_variant(i: u64) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `hash160`
[INFO] [stdout]    --> src/s256.rs:149:8
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn hash160(&self, compressed: bool) -> Vec<u8> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `address`
[INFO] [stdout]    --> src/s256.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 153 |     fn address(&self, compressed: bool, testnet: bool) -> String {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/s256.rs:191:8
[INFO] [stdout]     |
[INFO] [stdout] 191 |     fn new(r: BigInt, s: BigInt) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `der`
[INFO] [stdout]    --> src/s256.rs:195:8
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn der(&self) -> Vec<u8> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/s256.rs:227:8
[INFO] [stdout]     |
[INFO] [stdout] 227 |     fn new(secret: BigInt) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sign`
[INFO] [stdout]    --> src/s256.rs:232:12
[INFO] [stdout]     |
[INFO] [stdout] 232 |     pub fn sign(&self, z: BigInt) -> Signature {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `wif`
[INFO] [stdout]    --> src/s256.rs:254:12
[INFO] [stdout]     |
[INFO] [stdout] 254 |     pub fn wif(&self, compressed: bool, testnet: bool) -> String {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `version`
[INFO] [stdout]  --> src/transaction.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     version: u32,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tx_ins`
[INFO] [stdout]  --> src/transaction.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     tx_ins: Vec<TxIn>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tx_outs`
[INFO] [stdout]  --> src/transaction.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     tx_outs: Vec<TxOut>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `locktime`
[INFO] [stdout]   --> src/transaction.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     locktime: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `testnet`
[INFO] [stdout]   --> src/transaction.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     testnet: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]   --> src/transaction.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn parse<R: Read>(reader: &mut R, testnet: bool) -> Self
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `id`
[INFO] [stdout]   --> src/transaction.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn id(&self) -> String {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `serialize`
[INFO] [stdout]   --> src/transaction.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn serialize(&self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `hash`
[INFO] [stdout]   --> src/transaction.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn hash(&self) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `prev_tx`
[INFO] [stdout]   --> src/transaction.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     prev_tx: [u8; 32],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `prev_index`
[INFO] [stdout]   --> src/transaction.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     prev_index: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `script_sig`
[INFO] [stdout]   --> src/transaction.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     script_sig: Script,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sequence`
[INFO] [stdout]   --> src/transaction.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     sequence: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/transaction.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]   --> src/transaction.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn parse<R>(reader: &mut R) -> Self
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `serialize`
[INFO] [stdout]    --> src/transaction.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn serialize(&self) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `amount`
[INFO] [stdout]    --> src/transaction.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 130 |     amount: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `script_pubkey`
[INFO] [stdout]    --> src/transaction.rs:131:5
[INFO] [stdout]     |
[INFO] [stdout] 131 |     script_pubkey: ScriptPubKey,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/transaction.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn new(amount: u32, script_pubkey: ScriptPubKey) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]    --> src/transaction.rs:142:12
[INFO] [stdout]     |
[INFO] [stdout] 142 |     pub fn parse<R>(reader: &mut R) -> Self
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `serialize`
[INFO] [stdout]    --> src/transaction.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn serialize(&self) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/transaction.rs:163:12
[INFO] [stdout]     |
[INFO] [stdout] 163 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]    --> src/transaction.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn parse<R>(reader: &mut R) -> Self
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `serialize`
[INFO] [stdout]    --> src/transaction.rs:174:12
[INFO] [stdout]     |
[INFO] [stdout] 174 |     pub fn serialize(&self) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/transaction.rs:183:12
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]    --> src/transaction.rs:187:12
[INFO] [stdout]     |
[INFO] [stdout] 187 |     pub fn parse<R>(reader: &mut R) -> Self
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `serialize`
[INFO] [stdout]    --> src/transaction.rs:194:12
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn serialize(&self) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 44 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.67s
[INFO] running `Command { std: "docker" "inspect" "ae05e8d7ee387291f78659161fb6475280b3aa652435f2ed035c72a51926fb54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae05e8d7ee387291f78659161fb6475280b3aa652435f2ed035c72a51926fb54", kill_on_drop: false }`
[INFO] [stdout] ae05e8d7ee387291f78659161fb6475280b3aa652435f2ed035c72a51926fb54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dacf4fb855aeec4dc166ea5e873c84957c640c4531ee3348e00454d47ba1e78a
[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" "dacf4fb855aeec4dc166ea5e873c84957c640c4531ee3348e00454d47ba1e78a", kill_on_drop: false }`
[INFO] [stderr]    Compiling programming-bitcoin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BigInt`, `Sign`
[INFO] [stdout]  --> src/transaction.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num_bigint::{BigInt, Sign};
[INFO] [stdout]   |                  ^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reader`
[INFO] [stdout]    --> src/transaction.rs:167:21
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn parse<R>(reader: &mut R) -> Self
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reader`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reader`
[INFO] [stdout]    --> src/transaction.rs:187:21
[INFO] [stdout]     |
[INFO] [stdout] 187 |     pub fn parse<R>(reader: &mut R) -> Self
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reader`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_variant`
[INFO] [stdout]   --> src/helper.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn read_variant<R>(reader: &mut R) -> u64
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `encode_variant`
[INFO] [stdout]   --> src/helper.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub fn encode_variant(i: u64) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sign`
[INFO] [stdout]    --> src/s256.rs:232:12
[INFO] [stdout]     |
[INFO] [stdout] 232 |     pub fn sign(&self, z: BigInt) -> Signature {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `version`
[INFO] [stdout]  --> src/transaction.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     version: u32,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tx_ins`
[INFO] [stdout]  --> src/transaction.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     tx_ins: Vec<TxIn>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tx_outs`
[INFO] [stdout]  --> src/transaction.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     tx_outs: Vec<TxOut>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `locktime`
[INFO] [stdout]   --> src/transaction.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     locktime: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `testnet`
[INFO] [stdout]   --> src/transaction.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     testnet: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]   --> src/transaction.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn parse<R: Read>(reader: &mut R, testnet: bool) -> Self
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `id`
[INFO] [stdout]   --> src/transaction.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn id(&self) -> String {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `serialize`
[INFO] [stdout]   --> src/transaction.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn serialize(&self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `hash`
[INFO] [stdout]   --> src/transaction.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn hash(&self) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `prev_tx`
[INFO] [stdout]   --> src/transaction.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     prev_tx: [u8; 32],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `prev_index`
[INFO] [stdout]   --> src/transaction.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     prev_index: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `script_sig`
[INFO] [stdout]   --> src/transaction.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     script_sig: Script,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sequence`
[INFO] [stdout]   --> src/transaction.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     sequence: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/transaction.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]   --> src/transaction.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn parse<R>(reader: &mut R) -> Self
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `serialize`
[INFO] [stdout]    --> src/transaction.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn serialize(&self) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `amount`
[INFO] [stdout]    --> src/transaction.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 130 |     amount: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `script_pubkey`
[INFO] [stdout]    --> src/transaction.rs:131:5
[INFO] [stdout]     |
[INFO] [stdout] 131 |     script_pubkey: ScriptPubKey,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/transaction.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn new(amount: u32, script_pubkey: ScriptPubKey) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]    --> src/transaction.rs:142:12
[INFO] [stdout]     |
[INFO] [stdout] 142 |     pub fn parse<R>(reader: &mut R) -> Self
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `serialize`
[INFO] [stdout]    --> src/transaction.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn serialize(&self) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/transaction.rs:163:12
[INFO] [stdout]     |
[INFO] [stdout] 163 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]    --> src/transaction.rs:167:12
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn parse<R>(reader: &mut R) -> Self
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `serialize`
[INFO] [stdout]    --> src/transaction.rs:174:12
[INFO] [stdout]     |
[INFO] [stdout] 174 |     pub fn serialize(&self) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/transaction.rs:183:12
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]    --> src/transaction.rs:187:12
[INFO] [stdout]     |
[INFO] [stdout] 187 |     pub fn parse<R>(reader: &mut R) -> Self
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `serialize`
[INFO] [stdout]    --> src/transaction.rs:194:12
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn serialize(&self) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.80s
[INFO] running `Command { std: "docker" "inspect" "dacf4fb855aeec4dc166ea5e873c84957c640c4531ee3348e00454d47ba1e78a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dacf4fb855aeec4dc166ea5e873c84957c640c4531ee3348e00454d47ba1e78a", kill_on_drop: false }`
[INFO] [stdout] dacf4fb855aeec4dc166ea5e873c84957c640c4531ee3348e00454d47ba1e78a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c3449e18a5e905c59870c1353acb39d35480c51e8dcc9da393939b5bbaa20285
[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" "c3449e18a5e905c59870c1353acb39d35480c51e8dcc9da393939b5bbaa20285", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `BigInt`, `Sign`
[INFO] [stderr]  --> src/transaction.rs:2:18
[INFO] [stderr]   |
[INFO] [stderr] 2 | use num_bigint::{BigInt, Sign};
[INFO] [stderr]   |                  ^^^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reader`
[INFO] [stderr]    --> src/transaction.rs:167:21
[INFO] [stderr]     |
[INFO] [stderr] 167 |     pub fn parse<R>(reader: &mut R) -> Self
[INFO] [stderr]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reader`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `reader`
[INFO] [stderr]    --> src/transaction.rs:187:21
[INFO] [stderr]     |
[INFO] [stderr] 187 |     pub fn parse<R>(reader: &mut R) -> Self
[INFO] [stderr]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reader`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_variant`
[INFO] [stderr]   --> src/helper.rs:56:8
[INFO] [stderr]    |
[INFO] [stderr] 56 | pub fn read_variant<R>(reader: &mut R) -> u64
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `encode_variant`
[INFO] [stderr]   --> src/helper.rs:81:8
[INFO] [stderr]    |
[INFO] [stderr] 81 | pub fn encode_variant(i: u64) -> Vec<u8> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `sign`
[INFO] [stderr]    --> src/s256.rs:232:12
[INFO] [stderr]     |
[INFO] [stderr] 232 |     pub fn sign(&self, z: BigInt) -> Signature {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `version`
[INFO] [stderr]  --> src/transaction.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     version: u32,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `tx_ins`
[INFO] [stderr]  --> src/transaction.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     tx_ins: Vec<TxIn>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `tx_outs`
[INFO] [stderr]  --> src/transaction.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     tx_outs: Vec<TxOut>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `locktime`
[INFO] [stderr]   --> src/transaction.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     locktime: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `testnet`
[INFO] [stderr]   --> src/transaction.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     testnet: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse`
[INFO] [stderr]   --> src/transaction.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn parse<R: Read>(reader: &mut R, testnet: bool) -> Self
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `id`
[INFO] [stderr]   --> src/transaction.rs:45:8
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn id(&self) -> String {
[INFO] [stderr]    |        ^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `serialize`
[INFO] [stderr]   --> src/transaction.rs:52:12
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn serialize(&self) -> Vec<u8> {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `hash`
[INFO] [stderr]   --> src/transaction.rs:69:8
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn hash(&self) -> Vec<u8> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `prev_tx`
[INFO] [stderr]   --> src/transaction.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 |     prev_tx: [u8; 32],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `prev_index`
[INFO] [stderr]   --> src/transaction.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     prev_index: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `script_sig`
[INFO] [stderr]   --> src/transaction.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 |     script_sig: Script,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `sequence`
[INFO] [stderr]   --> src/transaction.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     sequence: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/transaction.rs:83:12
[INFO] [stderr]    |
[INFO] [stderr] 83 |     pub fn new(
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse`
[INFO] [stderr]   --> src/transaction.rs:97:12
[INFO] [stderr]    |
[INFO] [stderr] 97 |     pub fn parse<R>(reader: &mut R) -> Self
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `serialize`
[INFO] [stderr]    --> src/transaction.rs:119:12
[INFO] [stderr]     |
[INFO] [stderr] 119 |     pub fn serialize(&self) -> Vec<u8> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `amount`
[INFO] [stderr]    --> src/transaction.rs:130:5
[INFO] [stderr]     |
[INFO] [stderr] 130 |     amount: u32,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `script_pubkey`
[INFO] [stderr]    --> src/transaction.rs:131:5
[INFO] [stderr]     |
[INFO] [stderr] 131 |     script_pubkey: ScriptPubKey,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/transaction.rs:135:12
[INFO] [stderr]     |
[INFO] [stderr] 135 |     pub fn new(amount: u32, script_pubkey: ScriptPubKey) -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse`
[INFO] [stderr]    --> src/transaction.rs:142:12
[INFO] [stderr]     |
[INFO] [stderr] 142 |     pub fn parse<R>(reader: &mut R) -> Self
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `serialize`
[INFO] [stderr]    --> src/transaction.rs:152:12
[INFO] [stderr]     |
[INFO] [stderr] 152 |     pub fn serialize(&self) -> Vec<u8> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/transaction.rs:163:12
[INFO] [stderr]     |
[INFO] [stderr] 163 |     pub fn new() -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse`
[INFO] [stderr]    --> src/transaction.rs:167:12
[INFO] [stderr]     |
[INFO] [stderr] 167 |     pub fn parse<R>(reader: &mut R) -> Self
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `serialize`
[INFO] [stderr]    --> src/transaction.rs:174:12
[INFO] [stderr]     |
[INFO] [stderr] 174 |     pub fn serialize(&self) -> Vec<u8> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/transaction.rs:183:12
[INFO] [stderr]     |
[INFO] [stderr] 183 |     pub fn new() -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `parse`
[INFO] [stderr]    --> src/transaction.rs:187:12
[INFO] [stderr]     |
[INFO] [stderr] 187 |     pub fn parse<R>(reader: &mut R) -> Self
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `serialize`
[INFO] [stderr]    --> src/transaction.rs:194:12
[INFO] [stderr]     |
[INFO] [stderr] 194 |     pub fn serialize(&self) -> Vec<u8> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `programming-bitcoin` (bin "programming-bitcoin" test) generated 33 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/programming_bitcoin-9447b805ca034324)
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test field_element::test_add ... ok
[INFO] [stdout] test field_element::test_mul ... ok
[INFO] [stdout] test field_element::test_sub ... ok
[INFO] [stdout] test field_element::test_div ... ok
[INFO] [stdout] test field_element::test_neg_pow ... ok
[INFO] [stdout] test helper::test_exam_4_4 ... ok
[INFO] [stdout] test field_element::test_pow ... ok
[INFO] [stdout] test s256::test_exam_4_3 ... ok
[INFO] [stdout] test test_add_field_element ... ok
[INFO] [stdout] test s256::test_3_9 ... ok
[INFO] [stdout] test test_3_9_1 ... ok
[INFO] [stdout] test test_exam_3_5 ... ok
[INFO] [stdout] test test_mul ... ok
[INFO] [stdout] test test_exam_3_4 ... ok
[INFO] [stdout] test s256::test_exam_4_2 ... ok
[INFO] [stdout] test s256::test_exam_4_1 ... ok
[INFO] [stdout] test s256::test_exam_4_6 ... ok
[INFO] [stdout] test s256::test_exam_4_5 ... ok
[INFO] [stdout] test s256::test_3_11_4 ... ok
[INFO] [stdout] test s256::test_3_11_3 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 8.61s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c3449e18a5e905c59870c1353acb39d35480c51e8dcc9da393939b5bbaa20285", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3449e18a5e905c59870c1353acb39d35480c51e8dcc9da393939b5bbaa20285", kill_on_drop: false }`
[INFO] [stdout] c3449e18a5e905c59870c1353acb39d35480c51e8dcc9da393939b5bbaa20285