[INFO] cloning repository https://github.com/yhanyi/DumbContract
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yhanyi/DumbContract" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyhanyi%2FDumbContract", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyhanyi%2FDumbContract'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 496011c30c9391ff6df081b4e86c3918802e4391
[INFO] checking yhanyi/DumbContract against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyhanyi%2FDumbContract" "/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/yhanyi/DumbContract on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yhanyi/DumbContract
[INFO] finished tweaking git repo https://github.com/yhanyi/DumbContract
[INFO] tweaked toml for git repo https://github.com/yhanyi/DumbContract written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/yhanyi/DumbContract 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c9f628fee0d1bb61c006ae8b4184311ab0cdaffbc5f4f707245120577d06d89
[INFO] running `Command { std: "docker" "start" "-a" "1c9f628fee0d1bb61c006ae8b4184311ab0cdaffbc5f4f707245120577d06d89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c9f628fee0d1bb61c006ae8b4184311ab0cdaffbc5f4f707245120577d06d89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c9f628fee0d1bb61c006ae8b4184311ab0cdaffbc5f4f707245120577d06d89", kill_on_drop: false }`
[INFO] [stdout] 1c9f628fee0d1bb61c006ae8b4184311ab0cdaffbc5f4f707245120577d06d89
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47719f8ab310c60e999686edb1712d0206c4f096b107884e9c30f08593b37f53
[INFO] running `Command { std: "docker" "start" "-a" "47719f8ab310c60e999686edb1712d0206c4f096b107884e9c30f08593b37f53", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking DumbContract v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `description` is never read
[INFO] [stdout]  --> src/condition.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Condition {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 2 |     description: String,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `description` is never read
[INFO] [stdout]  --> src/condition.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Condition {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 2 |     description: String,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `from` is never read
[INFO] [stdout]  --> src/transaction.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Transaction {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 4 |     pub from: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `from` is never read
[INFO] [stdout]  --> src/transaction.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Transaction {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 4 |     pub from: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `balance` is never read
[INFO] [stdout]  --> src/user.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct User {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 3 |     pub name: String,
[INFO] [stdout] 4 |     pub balance: u64,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `balance` is never read
[INFO] [stdout]  --> src/user.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct User {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 3 |     pub name: String,
[INFO] [stdout] 4 |     pub balance: u64,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `adjust_balance` is never used
[INFO] [stdout]   --> src/user.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl User {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn adjust_balance(&mut self, amount: i64) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `adjust_balance` is never used
[INFO] [stdout]   --> src/user.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl User {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn adjust_balance(&mut self, amount: i64) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "47719f8ab310c60e999686edb1712d0206c4f096b107884e9c30f08593b37f53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47719f8ab310c60e999686edb1712d0206c4f096b107884e9c30f08593b37f53", kill_on_drop: false }`
[INFO] [stdout] 47719f8ab310c60e999686edb1712d0206c4f096b107884e9c30f08593b37f53