[INFO] cloning repository https://github.com/hsanzg/exact-covers [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hsanzg/exact-covers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsanzg%2Fexact-covers", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsanzg%2Fexact-covers'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 006bbcea1063c9d8c39e77ccba08aaa8cc94d222 [INFO] checking hsanzg/exact-covers against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsanzg%2Fexact-covers" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hsanzg/exact-covers on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/hsanzg/exact-covers [INFO] removed 0 missing examples [INFO] finished tweaking git repo https://github.com/hsanzg/exact-covers [INFO] tweaked toml for git repo https://github.com/hsanzg/exact-covers written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/hsanzg/exact-covers 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded smallvec v2.0.0-alpha.6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8dff9ec6c7dc8dcec3ca7511ce25f40eeaf3b9c9323411fe857b0eb8aad5af0a [INFO] running `Command { std: "docker" "start" "-a" "8dff9ec6c7dc8dcec3ca7511ce25f40eeaf3b9c9323411fe857b0eb8aad5af0a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8dff9ec6c7dc8dcec3ca7511ce25f40eeaf3b9c9323411fe857b0eb8aad5af0a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8dff9ec6c7dc8dcec3ca7511ce25f40eeaf3b9c9323411fe857b0eb8aad5af0a", kill_on_drop: false }` [INFO] [stdout] 8dff9ec6c7dc8dcec3ca7511ce25f40eeaf3b9c9323411fe857b0eb8aad5af0a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a35db7f8b4fdd7bbdbfe17df693adf6444347ebe1477a678bfa2c8b7729ad954 [INFO] running `Command { std: "docker" "start" "-a" "a35db7f8b4fdd7bbdbfe17df693adf6444347ebe1477a678bfa2c8b7729ad954", kill_on_drop: false }` [INFO] [stderr] Checking smallvec v2.0.0-alpha.6 [INFO] [stderr] Checking exact-covers v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `primary` [INFO] [stdout] --> src/dc.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 14 | fn new(primary: &'i [I], secondary: &'i [I]) -> Self { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_primary` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `secondary` [INFO] [stdout] --> src/dc.rs:14:30 [INFO] [stdout] | [INFO] [stdout] 14 | fn new(primary: &'i [I], secondary: &'i [I]) -> Self { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_secondary` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `primary` [INFO] [stdout] --> src/dc.rs:18:36 [INFO] [stdout] | [INFO] [stdout] 18 | fn add_option(&mut self, primary: P, secondary: S) [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_primary` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `secondary` [INFO] [stdout] --> src/dc.rs:18:48 [INFO] [stdout] | [INFO] [stdout] 18 | fn add_option(&mut self, primary: P, secondary: S) [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_secondary` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `visit` [INFO] [stdout] --> src/dc.rs:26:23 [INFO] [stdout] | [INFO] [stdout] 26 | fn solve(self, visit: F) [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_visit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `level` [INFO] [stdout] --> src/dc.rs:35:23 [INFO] [stdout] | [INFO] [stdout] 35 | fn pointer(&self, level: usize) -> Option { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_level` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ix` [INFO] [stdout] --> src/dc.rs:43:25 [INFO] [stdout] | [INFO] [stdout] 43 | fn option_of(&self, ix: InstIndex, result: &mut Vec<&'i I>) { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ix` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/dc.rs:43:40 [INFO] [stdout] | [INFO] [stdout] 43 | fn option_of(&self, ix: InstIndex, result: &mut Vec<&'i I>) { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `primary` [INFO] [stdout] --> src/dc.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 14 | fn new(primary: &'i [I], secondary: &'i [I]) -> Self { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_primary` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `secondary` [INFO] [stdout] --> src/dc.rs:14:30 [INFO] [stdout] | [INFO] [stdout] 14 | fn new(primary: &'i [I], secondary: &'i [I]) -> Self { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_secondary` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `primary` [INFO] [stdout] --> src/dc.rs:18:36 [INFO] [stdout] | [INFO] [stdout] 18 | fn add_option(&mut self, primary: P, secondary: S) [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_primary` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `secondary` [INFO] [stdout] --> src/dc.rs:18:48 [INFO] [stdout] | [INFO] [stdout] 18 | fn add_option(&mut self, primary: P, secondary: S) [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_secondary` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `visit` [INFO] [stdout] --> src/dc.rs:26:23 [INFO] [stdout] | [INFO] [stdout] 26 | fn solve(self, visit: F) [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_visit` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `level` [INFO] [stdout] --> src/dc.rs:35:23 [INFO] [stdout] | [INFO] [stdout] 35 | fn pointer(&self, level: usize) -> Option { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_level` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ix` [INFO] [stdout] --> src/dc.rs:43:25 [INFO] [stdout] | [INFO] [stdout] 43 | fn option_of(&self, ix: InstIndex, result: &mut Vec<&'i I>) { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ix` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/dc.rs:43:40 [INFO] [stdout] | [INFO] [stdout] 43 | fn option_of(&self, ix: InstIndex, result: &mut Vec<&'i I>) { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.43s [INFO] running `Command { std: "docker" "inspect" "a35db7f8b4fdd7bbdbfe17df693adf6444347ebe1477a678bfa2c8b7729ad954", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a35db7f8b4fdd7bbdbfe17df693adf6444347ebe1477a678bfa2c8b7729ad954", kill_on_drop: false }` [INFO] [stdout] a35db7f8b4fdd7bbdbfe17df693adf6444347ebe1477a678bfa2c8b7729ad954