[INFO] cloning repository https://github.com/radar/setup-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/radar/setup-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fradar%2Fsetup-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fradar%2Fsetup-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 66ff47a1c12f5279753567c2323752e267b16a5f
[INFO] testing radar/setup-rust against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fradar%2Fsetup-rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/radar/setup-rust
[INFO] finished tweaking git repo https://github.com/radar/setup-rust
[INFO] tweaked toml for git repo https://github.com/radar/setup-rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/radar/setup-rust on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/radar/setup-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded winapi v0.3.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87e7ead22190193bbf87bf3ebc4c9e02dcae0b5ffdaab2296a9545852e0cdfb0
[INFO] running `Command { std: "docker" "start" "-a" "87e7ead22190193bbf87bf3ebc4c9e02dcae0b5ffdaab2296a9545852e0cdfb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87e7ead22190193bbf87bf3ebc4c9e02dcae0b5ffdaab2296a9545852e0cdfb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87e7ead22190193bbf87bf3ebc4c9e02dcae0b5ffdaab2296a9545852e0cdfb0", kill_on_drop: false }`
[INFO] [stdout] 87e7ead22190193bbf87bf3ebc4c9e02dcae0b5ffdaab2296a9545852e0cdfb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95ec8f16a27d7049fc7cff4b9e040a0b5c63409943d73e98d6bf133495ad9c4e
[INFO] running `Command { std: "docker" "start" "-a" "95ec8f16a27d7049fc7cff4b9e040a0b5c63409943d73e98d6bf133495ad9c4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling setup v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0515]: cannot return value referencing temporary value
[INFO] [stdout]   --> src/toolversions/mod.rs:13:33
[INFO] [stdout]    |
[INFO] [stdout] 13 |     return f.lines().map(|line| line.unwrap().split_whitespace().collect()).collect();
[INFO] [stdout]    |                                 -------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                 |
[INFO] [stdout]    |                                 returns a value referencing data owned by the current function
[INFO] [stdout]    |                                 temporary value created here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `versions`
[INFO] [stdout]   --> src/main.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let versions = toolversions::parse();
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_versions`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0515`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `setup` (bin "setup") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "95ec8f16a27d7049fc7cff4b9e040a0b5c63409943d73e98d6bf133495ad9c4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95ec8f16a27d7049fc7cff4b9e040a0b5c63409943d73e98d6bf133495ad9c4e", kill_on_drop: false }`
[INFO] [stdout] 95ec8f16a27d7049fc7cff4b9e040a0b5c63409943d73e98d6bf133495ad9c4e