[INFO] cloning repository https://github.com/davorluc/devchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davorluc/devchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavorluc%2Fdevchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavorluc%2Fdevchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c1f0939a265a1e2328b7a0755de1e82bf80d37b6
[INFO] checking davorluc/devchain against 36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6 for pr-160581
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavorluc%2Fdevchain" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/davorluc/devchain
[INFO] finished tweaking git repo https://github.com/davorluc/devchain
[INFO] tweaked toml for git repo https://github.com/davorluc/devchain written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/davorluc/devchain on toolchain 36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/davorluc/devchain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking davorluc/devchain against 36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6 for pr-160581
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavorluc%2Fdevchain" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/davorluc/devchain
[INFO] finished tweaking git repo https://github.com/davorluc/devchain
[INFO] tweaked toml for git repo https://github.com/davorluc/devchain written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/davorluc/devchain on toolchain 36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/davorluc/devchain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded secp256k1 v0.31.1
[INFO] [stderr]   Downloaded secp256k1-sys v0.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 1fff845da767670550fbf3dde44a96b9f739b39981034660dc888f948f2c43f7
[INFO] running `Command { std: "docker" "start" "1fff845da767670550fbf3dde44a96b9f739b39981034660dc888f948f2c43f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fff845da767670550fbf3dde44a96b9f739b39981034660dc888f948f2c43f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1fff845da767670550fbf3dde44a96b9f739b39981034660dc888f948f2c43f7" "/opt/rustwide/cargo-home/bin/cargo" "+36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fff845da767670550fbf3dde44a96b9f739b39981034660dc888f948f2c43f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1fff845da767670550fbf3dde44a96b9f739b39981034660dc888f948f2c43f7" "/opt/rustwide/cargo-home/bin/cargo" "+36e0a7eac2392bdd51fab6e7ff1d8c0e42d33bf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling zerocopy v0.8.55
[INFO] [stderr]     Checking typenum v1.20.0
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling bitcoin-io v0.1.101
[INFO] [stderr]    Compiling cc v1.4.0
[INFO] [stderr]     Checking arrayvec v0.7.8
[INFO] [stderr]     Checking const-oid v0.10.2
[INFO] [stderr]     Checking cpufeatures v0.3.0
[INFO] [stderr]     Checking hex-conservative v0.2.2
[INFO] [stderr]     Checking memchr v2.8.1
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking bitcoin_hashes v0.14.101
[INFO] [stderr]     Checking serde_json v1.0.150
[INFO] [stderr]     Checking hybrid-array v0.4.12
[INFO] [stderr]     Checking crypto-common v0.2.1
[INFO] [stderr]     Checking block-buffer v0.12.0
[INFO] [stderr]    Compiling secp256k1-sys v0.11.0
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]     Checking rand_core v0.9.5
[INFO] [stderr]     Checking digest v0.11.3
[INFO] [stderr]     Checking sha2 v0.11.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking rand v0.9.5
[INFO] [stderr]     Checking secp256k1 v0.31.1
[INFO] [stderr]     Checking devchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut blockchain = Blockchain::new();
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut blockchain = Blockchain::new();
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `blockchain`
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut blockchain = Blockchain::new();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_blockchain`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `blockchain`
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut blockchain = Blockchain::new();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_blockchain`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `chain`, `mempool`, and `utxo_set` are never read
[INFO] [stdout]   --> src/blockchain.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Blockchain {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 10 |     pub chain: Vec<Block>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 11 |     pub mempool: Vec<Transaction>,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 12 |     pub utxo_set: Vec<Transaction>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_block`, `clean_mempool`, and `sort_mempool` are never used
[INFO] [stdout]   --> src/blockchain.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Blockchain {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn add_block(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 88 |     fn clean_mempool(&mut self) {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 92 |     fn sort_mempool(&mut self) {}
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `signing_message` is never used
[INFO] [stdout]   --> src/transaction.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl Transaction {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn signing_message(inputs: &[UnsignedTxIn], outputs: &[TxOut]) -> Result<Vec<u8>, serde_json::Error> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/transaction.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl TxIn {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 66 |     pub fn new(prev_txid: String, vout: u64, signature: String, pub_key: String) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `secret_key` and `public_key` are never read
[INFO] [stdout]  --> src/wallet.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Wallet {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 7 |     secret_key: SecretKey,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 8 |     public_key: PublicKey,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_public_key`, `get_public_key_string`, and `sign` are never used
[INFO] [stdout]   --> src/wallet.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Wallet {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn get_public_key(&self) -> &PublicKey {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn get_public_key_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn sign(&self, message: &[u8]) -> String {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `chain`, `mempool`, and `utxo_set` are never read
[INFO] [stdout]   --> src/blockchain.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Blockchain {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 10 |     pub chain: Vec<Block>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 11 |     pub mempool: Vec<Transaction>,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 12 |     pub utxo_set: Vec<Transaction>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_block`, `clean_mempool`, and `sort_mempool` are never used
[INFO] [stdout]   --> src/blockchain.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Blockchain {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn add_block(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 88 |     fn clean_mempool(&mut self) {}
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 92 |     fn sort_mempool(&mut self) {}
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `signing_message` is never used
[INFO] [stdout]   --> src/transaction.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl Transaction {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn signing_message(inputs: &[UnsignedTxIn], outputs: &[TxOut]) -> Result<Vec<u8>, serde_json::Error> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/transaction.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl TxIn {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 66 |     pub fn new(prev_txid: String, vout: u64, signature: String, pub_key: String) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `secret_key` and `public_key` are never read
[INFO] [stdout]  --> src/wallet.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Wallet {
[INFO] [stdout]   |            ------ fields in this struct
[INFO] [stdout] 7 |     secret_key: SecretKey,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 8 |     public_key: PublicKey,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_public_key`, `get_public_key_string`, and `sign` are never used
[INFO] [stdout]   --> src/wallet.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Wallet {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn get_public_key(&self) -> &PublicKey {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn get_public_key_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn sign(&self, message: &[u8]) -> String {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.21s
[INFO] running `Command { std: "docker" "inspect" "1fff845da767670550fbf3dde44a96b9f739b39981034660dc888f948f2c43f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fff845da767670550fbf3dde44a96b9f739b39981034660dc888f948f2c43f7", kill_on_drop: false }`
[INFO] [stdout] 1fff845da767670550fbf3dde44a96b9f739b39981034660dc888f948f2c43f7
