[INFO] cloning repository https://github.com/jaiks-in/basic-blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jaiks-in/basic-blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaiks-in%2Fbasic-blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaiks-in%2Fbasic-blockchain'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaiks-in%2Fbasic-blockchain: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/jaiks-in/basic-blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jaiks-in/basic-blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaiks-in%2Fbasic-blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaiks-in%2Fbasic-blockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b271ccd97ded29d2d2a06fcbc551d2b3398c3c0
[INFO] checking jaiks-in/basic-blockchain against try#028201683a76a5cd349729c6819c46607119c4e8 for pr-144157
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaiks-in%2Fbasic-blockchain" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jaiks-in/basic-blockchain
[INFO] finished tweaking git repo https://github.com/jaiks-in/basic-blockchain
[INFO] tweaked toml for git repo https://github.com/jaiks-in/basic-blockchain written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jaiks-in/basic-blockchain on toolchain 028201683a76a5cd349729c6819c46607119c4e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jaiks-in/basic-blockchain 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" "+028201683a76a5cd349729c6819c46607119c4e8" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdcfdb8bb7d836fbb2863d7ada08f11d4a62f9b78ed02895de1abf1f4d26ae23
[INFO] running `Command { std: "docker" "start" "-a" "fdcfdb8bb7d836fbb2863d7ada08f11d4a62f9b78ed02895de1abf1f4d26ae23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdcfdb8bb7d836fbb2863d7ada08f11d4a62f9b78ed02895de1abf1f4d26ae23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdcfdb8bb7d836fbb2863d7ada08f11d4a62f9b78ed02895de1abf1f4d26ae23", kill_on_drop: false }`
[INFO] [stdout] fdcfdb8bb7d836fbb2863d7ada08f11d4a62f9b78ed02895de1abf1f4d26ae23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8d15f456be981728bc9bbcf4766daad34e2b137e21417bf0d6613becfadbff4
[INFO] running `Command { std: "docker" "start" "-a" "d8d15f456be981728bc9bbcf4766daad34e2b137e21417bf0d6613becfadbff4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]     Checking const-oid v0.9.6
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]     Checking base64ct v1.8.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking pem-rfc7468 v0.7.0
[INFO] [stderr]     Checking der v0.7.10
[INFO] [stderr]     Checking base16ct v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking spki v0.7.3
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking pkcs8 v0.10.2
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking sec1 v0.7.3
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling num-bigint-dig v0.8.4
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking rfc6979 v0.4.0
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking cpufeatures v0.2.17
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]     Checking socket2 v0.5.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking signal-hook-registry v1.4.5
[INFO] [stderr]     Checking pkcs1 v0.7.5
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking ff v0.13.1
[INFO] [stderr]     Checking crypto-bigint v0.5.5
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking signature v2.2.0
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking iana-time-zone v0.1.63
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]     Checking base64 v0.22.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking elliptic-curve v0.13.8
[INFO] [stderr]     Checking primeorder v0.13.6
[INFO] [stderr]     Checking ecdsa v0.16.9
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]     Checking p256 v0.13.2
[INFO] [stderr]     Checking rsa v0.9.8
[INFO] [stderr]     Checking tokio v1.46.1
[INFO] [stderr]     Checking blockchain_1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::rngs::OsRng`
[INFO] [stdout]  --> src/blockchain.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::rngs::OsRng;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `send_peer`
[INFO] [stdout]  --> src/main.rs:8:36
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::network::{start_server, send_peer, send_chain};
[INFO] [stdout]   |                                    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::rngs::OsRng`
[INFO] [stdout]  --> src/blockchain.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::rngs::OsRng;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `send_peer`
[INFO] [stdout]  --> src/main.rs:8:36
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::network::{start_server, send_peer, send_chain};
[INFO] [stdout]   |                                    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/network.rs:8:21
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn start_server(mut blockchain: Blockchain, peer_list: PeerList, address: &str) {
[INFO] [stdout]   |                     ----^^^^^^^^^^
[INFO] [stdout]   |                     |
[INFO] [stdout]   |                     help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_valid` is never used
[INFO] [stdout]   --> src/blockchain.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Transaction {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn is_valid(&self, public_key: &VerifyingKey) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `send_peer` is never used
[INFO] [stdout]   --> src/network.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub fn send_peer(address: &str, peer_address: &str) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/network.rs:8:21
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn start_server(mut blockchain: Blockchain, peer_list: PeerList, address: &str) {
[INFO] [stdout]   |                     ----^^^^^^^^^^
[INFO] [stdout]   |                     |
[INFO] [stdout]   |                     help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_valid` is never used
[INFO] [stdout]   --> src/blockchain.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Transaction {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn is_valid(&self, public_key: &VerifyingKey) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `send_peer` is never used
[INFO] [stdout]   --> src/network.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub fn send_peer(address: &str, peer_address: &str) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.99s
[INFO] running `Command { std: "docker" "inspect" "d8d15f456be981728bc9bbcf4766daad34e2b137e21417bf0d6613becfadbff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8d15f456be981728bc9bbcf4766daad34e2b137e21417bf0d6613becfadbff4", kill_on_drop: false }`
[INFO] [stdout] d8d15f456be981728bc9bbcf4766daad34e2b137e21417bf0d6613becfadbff4