[INFO] cloning repository https://github.com/Biacco42/rusty_blockchain_study
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Biacco42/rusty_blockchain_study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBiacco42%2Frusty_blockchain_study", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBiacco42%2Frusty_blockchain_study'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 06407706ba244043b8ec4030636504fd6894bbb1
[INFO] testing Biacco42/rusty_blockchain_study against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBiacco42%2Frusty_blockchain_study" "/workspace/builds/worker-51/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-51/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Biacco42/rusty_blockchain_study on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Biacco42/rusty_blockchain_study
[INFO] finished tweaking git repo https://github.com/Biacco42/rusty_blockchain_study
[INFO] tweaked toml for git repo https://github.com/Biacco42/rusty_blockchain_study written to /workspace/builds/worker-51/source/Cargo.toml
[INFO] crate git repo https://github.com/Biacco42/rusty_blockchain_study already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f22737f88422c6f306291526a65e40273bd3b37c5271ca379b7b41eb7226c83a
[INFO] running `Command { std: "docker" "start" "-a" "f22737f88422c6f306291526a65e40273bd3b37c5271ca379b7b41eb7226c83a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f22737f88422c6f306291526a65e40273bd3b37c5271ca379b7b41eb7226c83a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f22737f88422c6f306291526a65e40273bd3b37c5271ca379b7b41eb7226c83a", kill_on_drop: false }`
[INFO] [stdout] f22737f88422c6f306291526a65e40273bd3b37c5271ca379b7b41eb7226c83a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2d2bf6487e4dc7cd7e9b1866b1ca86a9e2bf70534575079b90b79852be5c0fc
[INFO] running `Command { std: "docker" "start" "-a" "b2d2bf6487e4dc7cd7e9b1866b1ca86a9e2bf70534575079b90b79852be5c0fc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rusty_blockchain_study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `hello`
[INFO] [stdout]  --> src/node/mod.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn hello() -> String {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.99s
[INFO] running `Command { std: "docker" "inspect" "b2d2bf6487e4dc7cd7e9b1866b1ca86a9e2bf70534575079b90b79852be5c0fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2d2bf6487e4dc7cd7e9b1866b1ca86a9e2bf70534575079b90b79852be5c0fc", kill_on_drop: false }`
[INFO] [stdout] b2d2bf6487e4dc7cd7e9b1866b1ca86a9e2bf70534575079b90b79852be5c0fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23b43b306a9480c5df8740f7a3ea5adb69c62d41859b078374d46f0aac7ff8f7
[INFO] running `Command { std: "docker" "start" "-a" "23b43b306a9480c5df8740f7a3ea5adb69c62d41859b078374d46f0aac7ff8f7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: function is never used: `hello`
[INFO] [stdout]  --> src/node/mod.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn hello() -> String {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rusty_blockchain_study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hello`
[INFO] [stdout]  --> src/node/mod.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn hello() -> String {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/rusty_blockchain_study-6732560357dcdeb7)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rusty_blockchain_study-4fd619e8554f4a76)
[INFO] running `Command { std: "docker" "inspect" "23b43b306a9480c5df8740f7a3ea5adb69c62d41859b078374d46f0aac7ff8f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23b43b306a9480c5df8740f7a3ea5adb69c62d41859b078374d46f0aac7ff8f7", kill_on_drop: false }`
[INFO] [stdout] 23b43b306a9480c5df8740f7a3ea5adb69c62d41859b078374d46f0aac7ff8f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2af65b2e716cac4aa7ba1e38f333885a77ca0ee09bb9d28a94dc01f597772f09
[INFO] running `Command { std: "docker" "start" "-a" "2af65b2e716cac4aa7ba1e38f333885a77ca0ee09bb9d28a94dc01f597772f09", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `hello`
[INFO] [stderr]  --> src/node/mod.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn hello() -> String {
[INFO] [stderr]   |    ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rusty_blockchain_study` (lib) generated 1 warning
[INFO] [stderr] warning: `rusty_blockchain_study` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rusty_blockchain_study-6732560357dcdeb7)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rusty_blockchain_study-4fd619e8554f4a76)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rusty_blockchain_study
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2af65b2e716cac4aa7ba1e38f333885a77ca0ee09bb9d28a94dc01f597772f09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2af65b2e716cac4aa7ba1e38f333885a77ca0ee09bb9d28a94dc01f597772f09", kill_on_drop: false }`
[INFO] [stdout] 2af65b2e716cac4aa7ba1e38f333885a77ca0ee09bb9d28a94dc01f597772f09