[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] checking Biacco42/rusty_blockchain_study against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBiacco42%2Frusty_blockchain_study" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Biacco42/rusty_blockchain_study on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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-10/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f59643450d649a57e5a1cad3f61f539cc9e019a9f229c6a6973eef062e1ac11
[INFO] running `Command { std: "docker" "start" "-a" "3f59643450d649a57e5a1cad3f61f539cc9e019a9f229c6a6973eef062e1ac11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f59643450d649a57e5a1cad3f61f539cc9e019a9f229c6a6973eef062e1ac11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f59643450d649a57e5a1cad3f61f539cc9e019a9f229c6a6973eef062e1ac11", kill_on_drop: false }`
[INFO] [stdout] 3f59643450d649a57e5a1cad3f61f539cc9e019a9f229c6a6973eef062e1ac11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a40bb1addffc1e08220847f4e09a80a4247edc5d102408a67dc0091bfa5da56
[INFO] running `Command { std: "docker" "start" "-a" "5a40bb1addffc1e08220847f4e09a80a4247edc5d102408a67dc0091bfa5da56", kill_on_drop: false }`
[INFO] [stderr]     Checking 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] [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 0.30s
[INFO] running `Command { std: "docker" "inspect" "5a40bb1addffc1e08220847f4e09a80a4247edc5d102408a67dc0091bfa5da56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a40bb1addffc1e08220847f4e09a80a4247edc5d102408a67dc0091bfa5da56", kill_on_drop: false }`
[INFO] [stdout] 5a40bb1addffc1e08220847f4e09a80a4247edc5d102408a67dc0091bfa5da56