[INFO] cloning repository https://github.com/SzymonKubica/blockchain-simulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SzymonKubica/blockchain-simulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSzymonKubica%2Fblockchain-simulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSzymonKubica%2Fblockchain-simulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 34d27eb1cf9e0fd64fe10c368a567dd7e60f12c1
[INFO] checking SzymonKubica/blockchain-simulator against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSzymonKubica%2Fblockchain-simulator" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SzymonKubica/blockchain-simulator on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SzymonKubica/blockchain-simulator
[INFO] finished tweaking git repo https://github.com/SzymonKubica/blockchain-simulator
[INFO] tweaked toml for git repo https://github.com/SzymonKubica/blockchain-simulator written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/SzymonKubica/blockchain-simulator 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "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-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0566b03aca74cfc759705c66e281bb48c3f3eccb22e94fee1bcb2b80ceba0df4
[INFO] running `Command { std: "docker" "start" "-a" "0566b03aca74cfc759705c66e281bb48c3f3eccb22e94fee1bcb2b80ceba0df4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0566b03aca74cfc759705c66e281bb48c3f3eccb22e94fee1bcb2b80ceba0df4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0566b03aca74cfc759705c66e281bb48c3f3eccb22e94fee1bcb2b80ceba0df4", kill_on_drop: false }`
[INFO] [stdout] 0566b03aca74cfc759705c66e281bb48c3f3eccb22e94fee1bcb2b80ceba0df4
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38aa404791fe85dffeae85321594ce508efdb7f5d956a075db8ee8e8c666f5e4
[INFO] running `Command { std: "docker" "start" "-a" "38aa404791fe85dffeae85321594ce508efdb7f5d956a075db8ee8e8c666f5e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling rustix v0.38.19
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]    Compiling serde v1.0.189
[INFO] [stderr]     Checking anstyle v1.0.4
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.10
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]     Checking clap_lex v0.5.1
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]     Checking anstyle-parse v0.2.2
[INFO] [stderr]     Checking tokio v1.33.0
[INFO] [stderr]     Checking termcolor v1.3.0
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking anstream v0.6.4
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking clap_builder v4.4.6
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking crypto-bigint v0.5.3
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]    Compiling serde_derive v1.0.189
[INFO] [stderr]    Compiling clap_derive v4.4.2
[INFO] [stderr]    Compiling async-trait v0.1.74
[INFO] [stderr]     Checking sha256 v1.4.0
[INFO] [stderr]     Checking clap v4.4.6
[INFO] [stderr]     Checking blockchain-simulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `cell::RefCell`, `rc::Rc`
[INFO] [stdout]    --> src/node.rs:194:15
[INFO] [stdout]     |
[INFO] [stdout] 194 |     use std::{cell::RefCell, fs, rc::Rc};
[INFO] [stdout]     |               ^^^^^^^^^^^^^      ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Sha256Digest`, `digest`
[INFO] [stdout]    --> src/node.rs:197:18
[INFO] [stdout]     |
[INFO] [stdout] 197 |     use sha256::{digest, Sha256Digest};
[INFO] [stdout]     |                  ^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cell::RefCell`, `rc::Rc`
[INFO] [stdout]    --> src/node.rs:194:15
[INFO] [stdout]     |
[INFO] [stdout] 194 |     use std::{cell::RefCell, fs, rc::Rc};
[INFO] [stdout]     |               ^^^^^^^^^^^^^      ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Sha256Digest`, `digest`
[INFO] [stdout]    --> src/node.rs:197:18
[INFO] [stdout]     |
[INFO] [stdout] 197 |     use sha256::{digest, Sha256Digest};
[INFO] [stdout]     |                  ^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.87s
[INFO] running `Command { std: "docker" "inspect" "38aa404791fe85dffeae85321594ce508efdb7f5d956a075db8ee8e8c666f5e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38aa404791fe85dffeae85321594ce508efdb7f5d956a075db8ee8e8c666f5e4", kill_on_drop: false }`
[INFO] [stdout] 38aa404791fe85dffeae85321594ce508efdb7f5d956a075db8ee8e8c666f5e4