[INFO] cloning repository https://github.com/kendra-pdx/rats
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kendra-pdx/rats" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkendra-pdx%2Frats", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkendra-pdx%2Frats'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 31adc65844e6c4c33e5c04804099f54341ffcb11
[INFO] checking kendra-pdx/rats against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkendra-pdx%2Frats" "/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/kendra-pdx/rats on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kendra-pdx/rats
[INFO] finished tweaking git repo https://github.com/kendra-pdx/rats
[INFO] tweaked toml for git repo https://github.com/kendra-pdx/rats written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kendra-pdx/rats 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bc68509d2de3b8c99ab3485fe3eb2eb41df91718293a557e6058087e0c76423
[INFO] running `Command { std: "docker" "start" "-a" "7bc68509d2de3b8c99ab3485fe3eb2eb41df91718293a557e6058087e0c76423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bc68509d2de3b8c99ab3485fe3eb2eb41df91718293a557e6058087e0c76423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bc68509d2de3b8c99ab3485fe3eb2eb41df91718293a557e6058087e0c76423", kill_on_drop: false }`
[INFO] [stdout] 7bc68509d2de3b8c99ab3485fe3eb2eb41df91718293a557e6058087e0c76423
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a319008edf7c5c3c63a2cb234778dd0db614c91002dd68ee1a8a0ade7ee1a652
[INFO] running `Command { std: "docker" "start" "-a" "a319008edf7c5c3c63a2cb234778dd0db614c91002dd68ee1a8a0ade7ee1a652", kill_on_drop: false }`
[INFO] [stderr]     Checking rats v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `ap` is never used
[INFO] [stdout]  --> src/applicative.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Applicative: Pure {
[INFO] [stdout]   |           ----------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 8 |     fn ap<B, C>(&self, b: &Self::To<B>) -> Self::To<C>
[INFO] [stdout]   |        ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Monoid` is never used
[INFO] [stdout]  --> src/monoid.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Monoid {}
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `lift` is never used
[INFO] [stdout]  --> src/mt.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait MonadTrans {
[INFO] [stdout]   |           ---------- associated function in this trait
[INFO] [stdout] 4 |     type Base: Monad;
[INFO] [stdout] 5 |     fn lift(base: Self::Base) -> Self;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/validation.rs:126:13
[INFO] [stdout]     |
[INFO] [stdout] 126 |         let r = v_even.lift_a2(&v_non_negative, |a, b| { (a.clone(), b.clone()) });
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Monoid` is never used
[INFO] [stdout]  --> src/monoid.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Monoid {}
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `lift` is never used
[INFO] [stdout]  --> src/mt.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait MonadTrans {
[INFO] [stdout]   |           ---------- associated function in this trait
[INFO] [stdout] 4 |     type Base: Monad;
[INFO] [stdout] 5 |     fn lift(base: Self::Base) -> Self;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "a319008edf7c5c3c63a2cb234778dd0db614c91002dd68ee1a8a0ade7ee1a652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a319008edf7c5c3c63a2cb234778dd0db614c91002dd68ee1a8a0ade7ee1a652", kill_on_drop: false }`
[INFO] [stdout] a319008edf7c5c3c63a2cb234778dd0db614c91002dd68ee1a8a0ade7ee1a652