[INFO] cloning repository https://github.com/ricardopnunes/blockchain [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ricardopnunes/blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fricardopnunes%2Fblockchain", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fricardopnunes%2Fblockchain'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5e1901f8382719c817686bccb902bc8d7d642bdf [INFO] checking ricardopnunes/blockchain against master#ca77504943887037504c7fc0b9bf06dab3910373 for pr-145181 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fricardopnunes%2Fblockchain" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/ricardopnunes/blockchain [INFO] finished tweaking git repo https://github.com/ricardopnunes/blockchain [INFO] tweaked toml for git repo https://github.com/ricardopnunes/blockchain written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/ricardopnunes/blockchain on toolchain ca77504943887037504c7fc0b9bf06dab3910373 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ca77504943887037504c7fc0b9bf06dab3910373" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/ricardopnunes/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" "+ca77504943887037504c7fc0b9bf06dab3910373" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded env_logger v0.11.2 [INFO] [stderr] Downloaded bitcoincash-addr v0.5.2 [INFO] [stderr] Downloaded bitcoin_hashes v0.7.6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+ca77504943887037504c7fc0b9bf06dab3910373" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ec3bf972f5ad0b08f027852942c58495aa45a0088092a6ffbba5a0666300067c [INFO] running `Command { std: "docker" "start" "-a" "ec3bf972f5ad0b08f027852942c58495aa45a0088092a6ffbba5a0666300067c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ec3bf972f5ad0b08f027852942c58495aa45a0088092a6ffbba5a0666300067c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ec3bf972f5ad0b08f027852942c58495aa45a0088092a6ffbba5a0666300067c", kill_on_drop: false }` [INFO] [stdout] ec3bf972f5ad0b08f027852942c58495aa45a0088092a6ffbba5a0666300067c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+ca77504943887037504c7fc0b9bf06dab3910373" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7506b1af792e2f0c67c9074d788a3be7cf995d8f3ec0fa1e6976735fe09bbd06 [INFO] running `Command { std: "docker" "start" "-a" "7506b1af792e2f0c67c9074d788a3be7cf995d8f3ec0fa1e6976735fe09bbd06", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.78 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Checking memchr v2.7.1 [INFO] [stderr] Compiling typenum v1.17.0 [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking utf8parse v0.2.1 [INFO] [stderr] Checking anstyle-parse v0.2.3 [INFO] [stderr] Compiling crossbeam-utils v0.8.19 [INFO] [stderr] Compiling generic-array v0.14.7 [INFO] [stderr] Checking aho-corasick v1.1.2 [INFO] [stderr] Compiling lock_api v0.4.11 [INFO] [stderr] Checking anstyle v1.0.6 [INFO] [stderr] Compiling parking_lot_core v0.8.6 [INFO] [stderr] Checking regex-syntax v0.8.2 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Checking colorchoice v1.0.0 [INFO] [stderr] Compiling cc v1.0.88 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Checking anstyle-query v1.0.2 [INFO] [stderr] Compiling syn v2.0.52 [INFO] [stderr] Checking anstream v0.6.13 [INFO] [stderr] Checking getrandom v0.2.12 [INFO] [stderr] Checking instant v0.1.12 [INFO] [stderr] Compiling unicode-xid v0.2.4 [INFO] [stderr] Checking smallvec v1.13.1 [INFO] [stderr] Checking gimli v0.28.1 [INFO] [stderr] Compiling gcc v0.3.55 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Checking log v0.4.21 [INFO] [stderr] Compiling crc32fast v1.4.0 [INFO] [stderr] Checking adler v1.0.2 [INFO] [stderr] Checking regex-automata v0.4.5 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking miniz_oxide v0.7.2 [INFO] [stderr] Compiling backtrace v0.3.69 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Compiling rust-crypto v0.2.36 [INFO] [stderr] Checking crypto-common v0.1.6 [INFO] [stderr] Checking block-buffer v0.10.4 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking object v0.32.2 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Checking rustc-demangle v0.1.23 [INFO] [stderr] Checking strsim v0.11.0 [INFO] [stderr] Compiling serde_json v1.0.114 [INFO] [stderr] Checking clap_lex v0.7.0 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking clap_builder v4.5.1 [INFO] [stderr] Checking crossbeam-epoch v0.9.18 [INFO] [stderr] Checking fxhash v0.2.1 [INFO] [stderr] Checking digest v0.10.7 [INFO] [stderr] Checking addr2line v0.21.0 [INFO] [stderr] Checking parking_lot v0.11.2 [INFO] [stderr] Checking regex v1.10.3 [INFO] [stderr] Checking time v0.1.45 [INFO] [stderr] Checking env_filter v0.1.0 [INFO] [stderr] Checking fs2 v0.4.3 [INFO] [stderr] Compiling synstructure v0.12.6 [INFO] [stderr] Checking humantime v2.1.0 [INFO] [stderr] Checking ryu v1.0.17 [INFO] [stderr] Checking cpufeatures v0.2.12 [INFO] [stderr] Checking itoa v1.0.10 [INFO] [stderr] Checking bitcoin_hashes v0.7.6 [INFO] [stderr] Checking rustc-serialize v0.3.25 [INFO] [stderr] Checking env_logger v0.11.2 [INFO] [stderr] Checking sha2 v0.10.8 [INFO] [stderr] Checking sled v0.34.7 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking clap v4.5.1 [INFO] [stderr] Checking merkle-cbt v0.3.2 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking bitcoincash-addr v0.5.2 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking blockchain v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/blockchain.rs:128:5 [INFO] [stdout] | [INFO] [stdout] 128 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/blockchain.rs:128:5 [INFO] [stdout] | [INFO] [stdout] 128 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_prev_hash` is never used [INFO] [stdout] --> src/block.rs:36:12 [INFO] [stdout] | [INFO] [stdout] 34 | impl Block { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] 35 | [INFO] [stdout] 36 | pub fn get_prev_hash(&self) -> String{ [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Result` is never used [INFO] [stdout] --> src/errors.rs:2:10 [INFO] [stdout] | [INFO] [stdout] 2 | pub type Result = std::result::Result; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `BlockchainIter` is never constructed [INFO] [stdout] --> src/blockchain.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 15 | pub struct BlockchainIter<'a> { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `iter` is never used [INFO] [stdout] --> src/blockchain.rs:81:12 [INFO] [stdout] | [INFO] [stdout] 21 | impl Blockchain{ [INFO] [stdout] | --------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 81 | pub fn iter(&self) -> BlockchainIter { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | b.add_block("data".to_string()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 7 | let _ = b.add_block("data".to_string()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/blockchain.rs:81:17 [INFO] [stdout] | [INFO] [stdout] 81 | pub fn iter(&self) -> BlockchainIter { [INFO] [stdout] | ^^^^^ -------------- the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 81 | pub fn iter(&self) -> BlockchainIter<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Result` is never used [INFO] [stdout] --> src/errors.rs:2:10 [INFO] [stdout] | [INFO] [stdout] 2 | pub type Result = std::result::Result; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | b.add_block("data".to_string()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 7 | let _ = b.add_block("data".to_string()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/blockchain.rs:81:17 [INFO] [stdout] | [INFO] [stdout] 81 | pub fn iter(&self) -> BlockchainIter { [INFO] [stdout] | ^^^^^ -------------- the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 81 | pub fn iter(&self) -> BlockchainIter<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/blockchain.rs:135:5 [INFO] [stdout] | [INFO] [stdout] 135 | b.add_block("data 1".to_string()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 135 | let _ = b.add_block("data 1".to_string()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/blockchain.rs:136:5 [INFO] [stdout] | [INFO] [stdout] 136 | b.add_block("data 2".to_string()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 136 | let _ = b.add_block("data 2".to_string()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/blockchain.rs:137:5 [INFO] [stdout] | [INFO] [stdout] 137 | b.add_block("data 3".to_string()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 137 | let _ = b.add_block("data 3".to_string()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 41.56s [INFO] running `Command { std: "docker" "inspect" "7506b1af792e2f0c67c9074d788a3be7cf995d8f3ec0fa1e6976735fe09bbd06", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7506b1af792e2f0c67c9074d788a3be7cf995d8f3ec0fa1e6976735fe09bbd06", kill_on_drop: false }` [INFO] [stdout] 7506b1af792e2f0c67c9074d788a3be7cf995d8f3ec0fa1e6976735fe09bbd06