[INFO] cloning repository https://github.com/maxfer1221/calculus-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maxfer1221/calculus-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxfer1221%2Fcalculus-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxfer1221%2Fcalculus-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 99507c897ccfaa3e47ea8750603b092cef587de6
[INFO] checking maxfer1221/calculus-rs against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxfer1221%2Fcalculus-rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maxfer1221/calculus-rs 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/maxfer1221/calculus-rs
[INFO] finished tweaking git repo https://github.com/maxfer1221/calculus-rs
[INFO] tweaked toml for git repo https://github.com/maxfer1221/calculus-rs written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/maxfer1221/calculus-rs 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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded version-compare v0.1.0
[INFO] [stderr]   Downloaded c_vec v2.0.0
[INFO] [stderr]   Downloaded sdl2 v0.35.1
[INFO] [stderr]   Downloaded sdl2-sys v0.35.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 368363b9cbbdc10e15103df993f784ed5f0d4dc2e17f9d2d5144d79d7b676e37
[INFO] running `Command { std: "docker" "start" "-a" "368363b9cbbdc10e15103df993f784ed5f0d4dc2e17f9d2d5144d79d7b676e37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "368363b9cbbdc10e15103df993f784ed5f0d4dc2e17f9d2d5144d79d7b676e37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "368363b9cbbdc10e15103df993f784ed5f0d4dc2e17f9d2d5144d79d7b676e37", kill_on_drop: false }`
[INFO] [stdout] 368363b9cbbdc10e15103df993f784ed5f0d4dc2e17f9d2d5144d79d7b676e37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 56f246e91dc10ca26583fb9e3e57ec1effcbf1940bdcc7f8415a310e006b8e4e
[INFO] running `Command { std: "docker" "start" "-a" "56f246e91dc10ca26583fb9e3e57ec1effcbf1940bdcc7f8415a310e006b8e4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling sdl2 v0.35.1
[INFO] [stderr]     Checking c_vec v2.0.0
[INFO] [stderr]    Compiling sdl2-sys v0.35.1
[INFO] [stderr]     Checking function-comparison v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Power` is never constructed
[INFO] [stdout]  --> src/function.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Function<T> {
[INFO] [stdout]   |          -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 7 |     Power(Box<Function<T>>, T),
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Function` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Constants` is never used
[INFO] [stdout]   --> src/function.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub trait Constants {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Power` is never constructed
[INFO] [stdout]  --> src/function.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Function<T> {
[INFO] [stdout]   |          -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 7 |     Power(Box<Function<T>>, T),
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Function` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Constants` is never used
[INFO] [stdout]   --> src/function.rs:14:11
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub trait Constants {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `Command { std: "docker" "inspect" "56f246e91dc10ca26583fb9e3e57ec1effcbf1940bdcc7f8415a310e006b8e4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56f246e91dc10ca26583fb9e3e57ec1effcbf1940bdcc7f8415a310e006b8e4e", kill_on_drop: false }`
[INFO] [stdout] 56f246e91dc10ca26583fb9e3e57ec1effcbf1940bdcc7f8415a310e006b8e4e