[INFO] cloning repository https://github.com/tawashichan/prop-lk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tawashichan/prop-lk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftawashichan%2Fprop-lk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftawashichan%2Fprop-lk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad6d0bc261f8f3d7bf82549bf883a4068a694a89
[INFO] checking tawashichan/prop-lk against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftawashichan%2Fprop-lk" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tawashichan/prop-lk on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tawashichan/prop-lk
[INFO] finished tweaking git repo https://github.com/tawashichan/prop-lk
[INFO] tweaked toml for git repo https://github.com/tawashichan/prop-lk written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/tawashichan/prop-lk already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f3b202b8d49d5231c9a289842b65742bd93a296e1367b6dab39e6521dc13706
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8f3b202b8d49d5231c9a289842b65742bd93a296e1367b6dab39e6521dc13706", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f3b202b8d49d5231c9a289842b65742bd93a296e1367b6dab39e6521dc13706", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f3b202b8d49d5231c9a289842b65742bd93a296e1367b6dab39e6521dc13706", kill_on_drop: false }`
[INFO] [stdout] 8f3b202b8d49d5231c9a289842b65742bd93a296e1367b6dab39e6521dc13706
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3656d08d90bafb0b0cf5c7eaa064c876e14527d003c2d216e753e101673e3699
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3656d08d90bafb0b0cf5c7eaa064c876e14527d003c2d216e753e101673e3699", kill_on_drop: false }`
[INFO] [stderr]     Checking prop-logic-checker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Formula`
[INFO] [stdout]  --> src/parser.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::logic::{Formula,Sequent};
[INFO] [stdout]   |                    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Formula`
[INFO] [stdout]  --> src/parser.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::logic::{Formula,Sequent};
[INFO] [stdout]   |                    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> src/parser.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn parse_tokens(tokens: &[Token]) -> Vec<Sequent> {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> src/parser.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn parse_tokens(tokens: &[Token]) -> Vec<Sequent> {
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Atom`
[INFO] [stdout]  --> src/logic.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Atom(&'static str), //原始式
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `And`
[INFO] [stdout]  --> src/logic.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     And(Box<Formula>, Box<Formula>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Not`
[INFO] [stdout]   --> src/logic.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Not(Box<Formula>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Or`
[INFO] [stdout]   --> src/logic.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Or(Box<Formula>, Box<Formula>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Rule`
[INFO] [stdout]   --> src/logic.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 | enum Rule {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ProofTree`
[INFO] [stdout]   --> src/logic.rs:23:6
[INFO] [stdout]    |
[INFO] [stdout] 23 | enum ProofTree {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_reachable`
[INFO] [stdout]   --> src/logic.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn is_reachable(&self, rule: &Rule, another: &Sequent) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_valid`
[INFO] [stdout]   --> src/logic.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn is_valid(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Token`
[INFO] [stdout]  --> src/parser.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum Token {
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse`
[INFO] [stdout]   --> src/parser.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn parse(chars: &[char]) -> Vec<Token> {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_tokens`
[INFO] [stdout]   --> src/parser.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn parse_tokens(tokens: &[Token]) -> Vec<Sequent> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `And`
[INFO] [stdout]  --> src/logic.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     And(Box<Formula>, Box<Formula>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Token`
[INFO] [stdout]  --> src/parser.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum Token {
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse`
[INFO] [stdout]   --> src/parser.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn parse(chars: &[char]) -> Vec<Token> {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_tokens`
[INFO] [stdout]   --> src/parser.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn parse_tokens(tokens: &[Token]) -> Vec<Sequent> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "3656d08d90bafb0b0cf5c7eaa064c876e14527d003c2d216e753e101673e3699", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3656d08d90bafb0b0cf5c7eaa064c876e14527d003c2d216e753e101673e3699", kill_on_drop: false }`
[INFO] [stdout] 3656d08d90bafb0b0cf5c7eaa064c876e14527d003c2d216e753e101673e3699