[INFO] cloning repository https://github.com/exoriente/mandelrust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/exoriente/mandelrust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexoriente%2Fmandelrust", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4bb9637be97bbc5554e010101b847ca96caaf1cb
[INFO] building exoriente/mandelrust against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fexoriente%2Fmandelrust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/exoriente/mandelrust on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
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[INFO] finished tweaking git repo https://github.com/exoriente/mandelrust
[INFO] tweaked toml for git repo https://github.com/exoriente/mandelrust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/exoriente/mandelrust 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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]    Compiling piston_window v0.132.0
[INFO] [stderr]    Compiling mandelrust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `mandelbrot_naive` is never used
[INFO] [stdout]   --> src/main.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn mandelbrot_naive(c: Complex, iterations: u32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `norm` is never used
[INFO] [stdout]   --> src/complex.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Complex {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 12 |     pub fn norm(self) -> f64 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 26s
[INFO] running `Command { std: "docker" "inspect" "a82f9908bac6f85ae874ab59c47dcae7a2d4d24f73aeb98e8e6b7f539bd75f9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a82f9908bac6f85ae874ab59c47dcae7a2d4d24f73aeb98e8e6b7f539bd75f9f", kill_on_drop: false }`
[INFO] [stdout] a82f9908bac6f85ae874ab59c47dcae7a2d4d24f73aeb98e8e6b7f539bd75f9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 155750af96de21a7c63373a778a52768b125dfaa90f5a1595c26e4f26a8b49b9
[INFO] running `Command { std: "docker" "start" "-a" "155750af96de21a7c63373a778a52768b125dfaa90f5a1595c26e4f26a8b49b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling mandelrust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `mandelbrot_naive` is never used
[INFO] [stdout]   --> src/main.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn mandelbrot_naive(c: Complex, iterations: u32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `norm` is never used
[INFO] [stdout]   --> src/complex.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Complex {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 12 |     pub fn norm(self) -> f64 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "155750af96de21a7c63373a778a52768b125dfaa90f5a1595c26e4f26a8b49b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "155750af96de21a7c63373a778a52768b125dfaa90f5a1595c26e4f26a8b49b9", kill_on_drop: false }`
[INFO] [stdout] 155750af96de21a7c63373a778a52768b125dfaa90f5a1595c26e4f26a8b49b9