[INFO] cloning repository https://github.com/mitic0320/learnblockchain-challenge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mitic0320/learnblockchain-challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitic0320%2Flearnblockchain-challenge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitic0320%2Flearnblockchain-challenge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 999cce95578b73396a82b7d4daa9f1e4fc10c9c1
[INFO] checking mitic0320/learnblockchain-challenge against master#03c609abb6638f9d7f49f34326d4137d07f5cd61 for pr-155945
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitic0320%2Flearnblockchain-challenge" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mitic0320/learnblockchain-challenge
[INFO] finished tweaking git repo https://github.com/mitic0320/learnblockchain-challenge
[INFO] tweaked toml for git repo https://github.com/mitic0320/learnblockchain-challenge written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mitic0320/learnblockchain-challenge on toolchain 03c609abb6638f9d7f49f34326d4137d07f5cd61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+03c609abb6638f9d7f49f34326d4137d07f5cd61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mitic0320/learnblockchain-challenge 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" "+03c609abb6638f9d7f49f34326d4137d07f5cd61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded base64ct v1.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+03c609abb6638f9d7f49f34326d4137d07f5cd61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4139b88c908f7b5b9d6d11b372799c0b9f0dc97440873a4e7863849c07edcde7
[INFO] running `Command { std: "docker" "start" "-a" "4139b88c908f7b5b9d6d11b372799c0b9f0dc97440873a4e7863849c07edcde7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4139b88c908f7b5b9d6d11b372799c0b9f0dc97440873a4e7863849c07edcde7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4139b88c908f7b5b9d6d11b372799c0b9f0dc97440873a4e7863849c07edcde7", kill_on_drop: false }`
[INFO] [stdout] 4139b88c908f7b5b9d6d11b372799c0b9f0dc97440873a4e7863849c07edcde7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+03c609abb6638f9d7f49f34326d4137d07f5cd61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 601356a3400fe6dcc9a29f8c817ffd5556c707ec893f167e69b0db92a26a7dfd
[INFO] running `Command { std: "docker" "start" "-a" "601356a3400fe6dcc9a29f8c817ffd5556c707ec893f167e69b0db92a26a7dfd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking base64ct v1.7.0
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling num-bigint-dig v0.8.4
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]     Checking pem-rfc7468 v0.7.0
[INFO] [stderr]     Checking der v0.7.10
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ff v0.13.1
[INFO] [stderr]     Checking signature v2.2.0
[INFO] [stderr]     Checking crypto-bigint v0.5.5
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking spki v0.7.3
[INFO] [stderr]     Checking sec1 v0.7.3
[INFO] [stderr]     Checking pkcs8 v0.10.2
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking pkcs1 v0.7.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking num-iter v0.1.45
[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 ecdsa v0.16.9
[INFO] [stderr]     Checking k256 v0.13.4
[INFO] [stderr]     Checking rsa v0.9.8
[INFO] [stderr]     Checking pow-hash-cli v0.1.0 (/opt/rustwide/workdir/pow-hash-cli)
[INFO] [stdout] warning: unused import: `Keypair`
[INFO] [stdout]  --> pow-hash-cli/src/bin/rsa_sign.rs:3:22
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rsa::signature::{Keypair, RandomizedSigner, SignatureEncoding, Verifier};
[INFO] [stdout]   |                      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RandomizedSigner`
[INFO] [stdout]  --> pow-hash-cli/src/bin/rsa_sign.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rsa::signature::{Keypair, RandomizedSigner, SignatureEncoding, Verifier};
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SignatureEncoding`
[INFO] [stdout]  --> pow-hash-cli/src/bin/rsa_sign.rs:3:49
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rsa::signature::{Keypair, RandomizedSigner, SignatureEncoding, Verifier};
[INFO] [stdout]   |                                                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Verifier`
[INFO] [stdout]  --> pow-hash-cli/src/bin/rsa_sign.rs:3:68
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rsa::signature::{Keypair, RandomizedSigner, SignatureEncoding, Verifier};
[INFO] [stdout]   |                                                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hash_str`
[INFO] [stdout]   --> pow-hash-cli/src/bin/rsa_sign.rs:39:15
[INFO] [stdout]    |
[INFO] [stdout] 39 |   let (input, hash_str) = calculate_hash_with_prefix(prefix, 4);
[INFO] [stdout]    |               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_hash_str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Keypair`, `RandomizedSigner`, `SignatureEncoding`, and `Verifier`
[INFO] [stdout]  --> pow-hash-cli/src/main.rs:2:22
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rsa::signature::{Keypair, RandomizedSigner, SignatureEncoding, Verifier};
[INFO] [stdout]   |                      ^^^^^^^  ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RsaPublicKey`
[INFO] [stdout]  --> pow-hash-cli/src/main.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rsa::{Pss, RsaPrivateKey, RsaPublicKey};
[INFO] [stdout]   |                               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Keypair`
[INFO] [stdout]  --> pow-hash-cli/src/bin/rsa_sign.rs:3:22
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rsa::signature::{Keypair, RandomizedSigner, SignatureEncoding, Verifier};
[INFO] [stdout]   |                      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Keypair`, `RandomizedSigner`, `SignatureEncoding`, and `Verifier`
[INFO] [stdout]  --> pow-hash-cli/src/main.rs:2:22
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rsa::signature::{Keypair, RandomizedSigner, SignatureEncoding, Verifier};
[INFO] [stdout]   |                      ^^^^^^^  ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RsaPublicKey`
[INFO] [stdout]  --> pow-hash-cli/src/main.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rsa::{Pss, RsaPrivateKey, RsaPublicKey};
[INFO] [stdout]   |                               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RandomizedSigner`
[INFO] [stdout]  --> pow-hash-cli/src/bin/rsa_sign.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rsa::signature::{Keypair, RandomizedSigner, SignatureEncoding, Verifier};
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SignatureEncoding`
[INFO] [stdout]  --> pow-hash-cli/src/bin/rsa_sign.rs:3:49
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rsa::signature::{Keypair, RandomizedSigner, SignatureEncoding, Verifier};
[INFO] [stdout]   |                                                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Verifier`
[INFO] [stdout]  --> pow-hash-cli/src/bin/rsa_sign.rs:3:68
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rsa::signature::{Keypair, RandomizedSigner, SignatureEncoding, Verifier};
[INFO] [stdout]   |                                                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hash_str`
[INFO] [stdout]   --> pow-hash-cli/src/bin/rsa_sign.rs:39:15
[INFO] [stdout]    |
[INFO] [stdout] 39 |   let (input, hash_str) = calculate_hash_with_prefix(prefix, 4);
[INFO] [stdout]    |               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_hash_str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.69s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: num-bigint-dig v0.8.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "601356a3400fe6dcc9a29f8c817ffd5556c707ec893f167e69b0db92a26a7dfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "601356a3400fe6dcc9a29f8c817ffd5556c707ec893f167e69b0db92a26a7dfd", kill_on_drop: false }`
[INFO] [stdout] 601356a3400fe6dcc9a29f8c817ffd5556c707ec893f167e69b0db92a26a7dfd
