[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 try#8cf44c88fc5805dc578c5c987397615b47d2e2b2 for pr-136764
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxfer1221%2Fcalculus-rs" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maxfer1221/calculus-rs on toolchain 8cf44c88fc5805dc578c5c987397615b47d2e2b2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8cf44c88fc5805dc578c5c987397615b47d2e2b2" "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-7-tc2/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" "+8cf44c88fc5805dc578c5c987397615b47d2e2b2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+8cf44c88fc5805dc578c5c987397615b47d2e2b2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1453f8f45aa170c6b020443ff267ec02d655d5acbfecb25309b75633489420f9
[INFO] running `Command { std: "docker" "start" "-a" "1453f8f45aa170c6b020443ff267ec02d655d5acbfecb25309b75633489420f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1453f8f45aa170c6b020443ff267ec02d655d5acbfecb25309b75633489420f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1453f8f45aa170c6b020443ff267ec02d655d5acbfecb25309b75633489420f9", kill_on_drop: false }`
[INFO] [stdout] 1453f8f45aa170c6b020443ff267ec02d655d5acbfecb25309b75633489420f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+8cf44c88fc5805dc578c5c987397615b47d2e2b2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d68460aca5e53b844d36d5d97453e13ed8cf9e07f84fcc58ff946e2a0cf283e
[INFO] running `Command { std: "docker" "start" "-a" "7d68460aca5e53b844d36d5d97453e13ed8cf9e07f84fcc58ff946e2a0cf283e", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[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]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.75s
[INFO] running `Command { std: "docker" "inspect" "7d68460aca5e53b844d36d5d97453e13ed8cf9e07f84fcc58ff946e2a0cf283e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d68460aca5e53b844d36d5d97453e13ed8cf9e07f84fcc58ff946e2a0cf283e", kill_on_drop: false }`
[INFO] [stdout] 7d68460aca5e53b844d36d5d97453e13ed8cf9e07f84fcc58ff946e2a0cf283e