[INFO] cloning repository https://github.com/johnterickson/smt_rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/johnterickson/smt_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnterickson%2Fsmt_rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnterickson%2Fsmt_rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0fd176639fb67b95b8a98c6e274d577f3555d2c1 [INFO] checking johnterickson/smt_rs against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnterickson%2Fsmt_rs" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/johnterickson/smt_rs on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/johnterickson/smt_rs [INFO] finished tweaking git repo https://github.com/johnterickson/smt_rs [INFO] tweaked toml for git repo https://github.com/johnterickson/smt_rs written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/johnterickson/smt_rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] aa88bcc4e9064fafbea9d68791d8a305256ba2a32ea5c895627629aac5f83ac1 [INFO] running `Command { std: "docker" "start" "-a" "aa88bcc4e9064fafbea9d68791d8a305256ba2a32ea5c895627629aac5f83ac1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "aa88bcc4e9064fafbea9d68791d8a305256ba2a32ea5c895627629aac5f83ac1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aa88bcc4e9064fafbea9d68791d8a305256ba2a32ea5c895627629aac5f83ac1", kill_on_drop: false }` [INFO] [stdout] aa88bcc4e9064fafbea9d68791d8a305256ba2a32ea5c895627629aac5f83ac1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 370cc430872f67ffb86e73f8150273f06935c64c02470a36976b693ef8f83cf1 [INFO] running `Command { std: "docker" "start" "-a" "370cc430872f67ffb86e73f8150273f06935c64c02470a36976b693ef8f83cf1", kill_on_drop: false }` [INFO] [stderr] Checking take_mut v0.2.2 [INFO] [stderr] Checking smt v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated function is never used: `eval` [INFO] [stdout] --> src/main.rs:519:8 [INFO] [stdout] | [INFO] [stdout] 519 | fn eval(&self, values: &HashMap) -> bool { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021. [INFO] [stdout] --> src/main.rs:442:57 [INFO] [stdout] | [INFO] [stdout] 442 | Expression::Or(_) => Cnf([self.to_clause()].into_iter().cloned().collect()), [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 442 | Expression::Or(_) => Cnf([self.to_clause()].iter().cloned().collect()), [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 442 | Expression::Or(_) => Cnf(IntoIterator::into_iter([self.to_clause()]).cloned().collect()), [INFO] [stdout] | ++++++++++++++++++++++++ ~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `N` should have a snake case name [INFO] [stdout] --> src/main.rs:591:9 [INFO] [stdout] | [INFO] [stdout] 591 | let N = 2; [INFO] [stdout] | ^ help: convert the identifier to snake case: `n` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Constant` [INFO] [stdout] --> src/main.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | Constant(bool), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Implies` [INFO] [stdout] --> src/main.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 33 | Implies(Box, Box), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Equivalent` [INFO] [stdout] --> src/main.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 34 | Equivalent(Box, Box), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `parse_inner` [INFO] [stdout] --> src/main.rs:67:8 [INFO] [stdout] | [INFO] [stdout] 67 | fn parse_inner(tokens: &mut Split) -> Expression { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `parse` [INFO] [stdout] --> src/main.rs:111:8 [INFO] [stdout] | [INFO] [stdout] 111 | fn parse(s: &str) -> Expression { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `eval` [INFO] [stdout] --> src/main.rs:519:8 [INFO] [stdout] | [INFO] [stdout] 519 | fn eval(&self, values: &HashMap) -> bool { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `is_solved` [INFO] [stdout] --> src/main.rs:548:8 [INFO] [stdout] | [INFO] [stdout] 548 | fn is_solved(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021. [INFO] [stdout] --> src/main.rs:442:57 [INFO] [stdout] | [INFO] [stdout] 442 | Expression::Or(_) => Cnf([self.to_clause()].into_iter().cloned().collect()), [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 442 | Expression::Or(_) => Cnf([self.to_clause()].iter().cloned().collect()), [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 442 | Expression::Or(_) => Cnf(IntoIterator::into_iter([self.to_clause()]).cloned().collect()), [INFO] [stdout] | ++++++++++++++++++++++++ ~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `N` should have a snake case name [INFO] [stdout] --> src/main.rs:591:9 [INFO] [stdout] | [INFO] [stdout] 591 | let N = 2; [INFO] [stdout] | ^ help: convert the identifier to snake case: `n` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.81s [INFO] running `Command { std: "docker" "inspect" "370cc430872f67ffb86e73f8150273f06935c64c02470a36976b693ef8f83cf1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "370cc430872f67ffb86e73f8150273f06935c64c02470a36976b693ef8f83cf1", kill_on_drop: false }` [INFO] [stdout] 370cc430872f67ffb86e73f8150273f06935c64c02470a36976b693ef8f83cf1