[INFO] cloning repository https://github.com/radish-miyazaki/tdd-by-example-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/radish-miyazaki/tdd-by-example-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fradish-miyazaki%2Ftdd-by-example-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fradish-miyazaki%2Ftdd-by-example-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 53aa6facdfc0566da81183ffccfd33bdf3689d48
[INFO] building radish-miyazaki/tdd-by-example-rust against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fradish-miyazaki%2Ftdd-by-example-rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/radish-miyazaki/tdd-by-example-rust
[INFO] finished tweaking git repo https://github.com/radish-miyazaki/tdd-by-example-rust
[INFO] tweaked toml for git repo https://github.com/radish-miyazaki/tdd-by-example-rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/radish-miyazaki/tdd-by-example-rust on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/radish-miyazaki/tdd-by-example-rust 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 831e612e85af6c97aeef36838561f399557bb628c67262ff26bb9cf86d07912a
[INFO] running `Command { std: "docker" "start" "-a" "831e612e85af6c97aeef36838561f399557bb628c67262ff26bb9cf86d07912a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "831e612e85af6c97aeef36838561f399557bb628c67262ff26bb9cf86d07912a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "831e612e85af6c97aeef36838561f399557bb628c67262ff26bb9cf86d07912a", kill_on_drop: false }`
[INFO] [stdout] 831e612e85af6c97aeef36838561f399557bb628c67262ff26bb9cf86d07912a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 599cc4bbd9c5d3fdaeb60c93975da2ff4eba50ae5a847a071502889f5ff4f99d
[INFO] running `Command { std: "docker" "start" "-a" "599cc4bbd9c5d3fdaeb60c93975da2ff4eba50ae5a847a071502889f5ff4f99d", kill_on_drop: false }`
[INFO] [stderr]    Compiling tdd-by-example-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Dollar` is never constructed
[INFO] [stdout]  --> src/main.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Dollar {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `times` are never used
[INFO] [stdout]   --> src/main.rs:7:8
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl Dollar {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout]  7 |     fn new(amount: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     fn times(&self, multiplier: i32) -> Self {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "599cc4bbd9c5d3fdaeb60c93975da2ff4eba50ae5a847a071502889f5ff4f99d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "599cc4bbd9c5d3fdaeb60c93975da2ff4eba50ae5a847a071502889f5ff4f99d", kill_on_drop: false }`
[INFO] [stdout] 599cc4bbd9c5d3fdaeb60c93975da2ff4eba50ae5a847a071502889f5ff4f99d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2d139ccfae8fbf56d391a368312663ff365fcf2d91c84684720f1f289f38ab8
[INFO] running `Command { std: "docker" "start" "-a" "d2d139ccfae8fbf56d391a368312663ff365fcf2d91c84684720f1f289f38ab8", kill_on_drop: false }`
[INFO] [stderr]    Compiling tdd-by-example-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "d2d139ccfae8fbf56d391a368312663ff365fcf2d91c84684720f1f289f38ab8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2d139ccfae8fbf56d391a368312663ff365fcf2d91c84684720f1f289f38ab8", kill_on_drop: false }`
[INFO] [stdout] d2d139ccfae8fbf56d391a368312663ff365fcf2d91c84684720f1f289f38ab8