[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] 39250b4d223e510fe30e8d945905496c34ac99d1
[INFO] checking rail44/programming-bitcoin against master#fc81ad22c453776de16acf9938976930cf8c9401 for pr-77325
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frail44%2Fprogramming-bitcoin" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rail44/programming-bitcoin on toolchain fc81ad22c453776de16acf9938976930cf8c9401
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-10/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-10/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" "+fc81ad22c453776de16acf9938976930cf8c9401" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ceaa408ce167ff17a63fd8707fd6f6f7f68c3cbc87694396adc535b164b8e16
[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" "2ceaa408ce167ff17a63fd8707fd6f6f7f68c3cbc87694396adc535b164b8e16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ceaa408ce167ff17a63fd8707fd6f6f7f68c3cbc87694396adc535b164b8e16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ceaa408ce167ff17a63fd8707fd6f6f7f68c3cbc87694396adc535b164b8e16", kill_on_drop: false }`
[INFO] [stdout] 2ceaa408ce167ff17a63fd8707fd6f6f7f68c3cbc87694396adc535b164b8e16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0c1dc4d203d38cd92b0bf50c1884a60804840e1f07e3bbd2e7dc8dd4f59fcb18
[INFO] running `Command { std: "docker" "start" "-a" "0c1dc4d203d38cd92b0bf50c1884a60804840e1f07e3bbd2e7dc8dd4f59fcb18", 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]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking cpufeatures v0.1.4
[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-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.3.2
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]     Checking ripemd160 v0.9.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking programming-bitcoin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: static is never used: `BASE58_ALPHABET`
[INFO] [stdout]  --> src/helper.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | 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:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | 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:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | 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:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | 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:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn hash160(s: &[u8]) -> 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: 11 warnings emitted
[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]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.42s
[INFO] running `Command { std: "docker" "inspect" "0c1dc4d203d38cd92b0bf50c1884a60804840e1f07e3bbd2e7dc8dd4f59fcb18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c1dc4d203d38cd92b0bf50c1884a60804840e1f07e3bbd2e7dc8dd4f59fcb18", kill_on_drop: false }`
[INFO] [stdout] 0c1dc4d203d38cd92b0bf50c1884a60804840e1f07e3bbd2e7dc8dd4f59fcb18