[INFO] cloning repository https://github.com/mwillsey/promatch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mwillsey/promatch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwillsey%2Fpromatch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwillsey%2Fpromatch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 999d3f103d031ba1d2756f40fba47147a2fd9432
[INFO] checking mwillsey/promatch against 895980e0290783bb09b1ccf1b11f14eb09b10430 for pr-160186
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwillsey%2Fpromatch" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mwillsey/promatch
[INFO] finished tweaking git repo https://github.com/mwillsey/promatch
[INFO] tweaked toml for git repo https://github.com/mwillsey/promatch written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mwillsey/promatch on toolchain 895980e0290783bb09b1ccf1b11f14eb09b10430
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mwillsey/promatch 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" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: unused manifest key: package.author
[INFO] [stderr] warning: `promatch` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 86b75f48d7c941928daeb1eb07f534a39fa10e56fc4e14baa59c7c3b5672cfee
[INFO] running `Command { std: "docker" "start" "86b75f48d7c941928daeb1eb07f534a39fa10e56fc4e14baa59c7c3b5672cfee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86b75f48d7c941928daeb1eb07f534a39fa10e56fc4e14baa59c7c3b5672cfee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "86b75f48d7c941928daeb1eb07f534a39fa10e56fc4e14baa59c7c3b5672cfee" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86b75f48d7c941928daeb1eb07f534a39fa10e56fc4e14baa59c7c3b5672cfee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "86b75f48d7c941928daeb1eb07f534a39fa10e56fc4e14baa59c7c3b5672cfee" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: unused manifest key: package.author
[INFO] [stderr] warning: `promatch` (manifest) generated 1 warning
[INFO] [stderr]     Checking heck v0.5.0
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking proc-macro2 v1.0.95
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]    Compiling derive-syn-parse v0.2.0
[INFO] [stderr]    Compiling promatch-macros v0.1.0 (/opt/rustwide/workdir/promatch-macros)
[INFO] [stderr]     Checking promatch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/collections.rs:39:26
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn unapply<C>(&self, a: BTreeSet<T>, f: impl Fn(Cons<T, BTreeSet<T>>) -> C) -> C
[INFO] [stdout]    |                          ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/collections.rs:39:42
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn unapply<C>(&self, a: BTreeSet<T>, f: impl Fn(Cons<T, BTreeSet<T>>) -> C) -> C
[INFO] [stdout]    |                                          ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `promatch::*`
[INFO] [stdout]  --> tests/poker.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use promatch::*;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::BTreeSet as Set`
[INFO] [stdout]  --> tests/poker.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::BTreeSet as Set;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/collections.rs:39:26
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn unapply<C>(&self, a: BTreeSet<T>, f: impl Fn(Cons<T, BTreeSet<T>>) -> C) -> C
[INFO] [stdout]    |                          ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/collections.rs:39:42
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn unapply<C>(&self, a: BTreeSet<T>, f: impl Fn(Cons<T, BTreeSet<T>>) -> C) -> C
[INFO] [stdout]    |                                          ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Card` is never constructed
[INFO] [stdout]  --> tests/poker.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Card(u8, char);
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.38s
[INFO] running `Command { std: "docker" "inspect" "86b75f48d7c941928daeb1eb07f534a39fa10e56fc4e14baa59c7c3b5672cfee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86b75f48d7c941928daeb1eb07f534a39fa10e56fc4e14baa59c7c3b5672cfee", kill_on_drop: false }`
[INFO] [stdout] 86b75f48d7c941928daeb1eb07f534a39fa10e56fc4e14baa59c7c3b5672cfee
