[INFO] cloning repository https://github.com/Bestra/essence-of-datalog-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Bestra/essence-of-datalog-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBestra%2Fessence-of-datalog-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBestra%2Fessence-of-datalog-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0e54966aa6349c5192dedf49661ec0d7f37b2eba
[INFO] checking Bestra/essence-of-datalog-rs against try#44f3504e96c944ae54fc72b5f5008f53f7eda001 for pr-136776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBestra%2Fessence-of-datalog-rs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Bestra/essence-of-datalog-rs on toolchain 44f3504e96c944ae54fc72b5f5008f53f7eda001
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Bestra/essence-of-datalog-rs
[INFO] finished tweaking git repo https://github.com/Bestra/essence-of-datalog-rs
[INFO] tweaked toml for git repo https://github.com/Bestra/essence-of-datalog-rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Bestra/essence-of-datalog-rs 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" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1000ebd19f80a3052c0a1b5ee29df9a55e1de8dd7bc36e0c65f0a93d27ab805
[INFO] running `Command { std: "docker" "start" "-a" "b1000ebd19f80a3052c0a1b5ee29df9a55e1de8dd7bc36e0c65f0a93d27ab805", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1000ebd19f80a3052c0a1b5ee29df9a55e1de8dd7bc36e0c65f0a93d27ab805", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1000ebd19f80a3052c0a1b5ee29df9a55e1de8dd7bc36e0c65f0a93d27ab805", kill_on_drop: false }`
[INFO] [stdout] b1000ebd19f80a3052c0a1b5ee29df9a55e1de8dd7bc36e0c65f0a93d27ab805
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eff2857dbfb07a5e6c9ada03fb3c0dd27ded2fbd3e4ae94ec2ec2f385329e693
[INFO] running `Command { std: "docker" "start" "-a" "eff2857dbfb07a5e6c9ada03fb3c0dd27ded2fbd3e4ae94ec2ec2f385329e693", kill_on_drop: false }`
[INFO] [stderr]     Checking datalog v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Rule` is never constructed
[INFO] [stdout]   --> src/main.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct Rule {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Program` is never used
[INFO] [stdout]   --> src/main.rs:34:6
[INFO] [stdout]    |
[INFO] [stdout] 34 | type Program = Vec<Rule>;
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `KnowledgeBase` is never used
[INFO] [stdout]   --> src/main.rs:35:6
[INFO] [stdout]    |
[INFO] [stdout] 35 | type KnowledgeBase = Vec<Atom>;
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `predSym` should have a snake case name
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     predSym: String,
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to snake case: `pred_sym`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Term` is never used
[INFO] [stdout]  --> src/main.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum Term {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `var` and `sym` are never used
[INFO] [stdout]   --> src/main.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Term {
[INFO] [stdout]    | --------- associated functions in this implementation
[INFO] [stdout] 14 |     fn var(s: &str) -> Term {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn sym(s: &str) -> Term {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Atom` is never constructed
[INFO] [stdout]   --> src/main.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct Atom {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rule` is never constructed
[INFO] [stdout]   --> src/main.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct Rule {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Program` is never used
[INFO] [stdout]   --> src/main.rs:34:6
[INFO] [stdout]    |
[INFO] [stdout] 34 | type Program = Vec<Rule>;
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `KnowledgeBase` is never used
[INFO] [stdout]   --> src/main.rs:35:6
[INFO] [stdout]    |
[INFO] [stdout] 35 | type KnowledgeBase = Vec<Atom>;
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Substitution` is never used
[INFO] [stdout]   --> src/main.rs:36:6
[INFO] [stdout]    |
[INFO] [stdout] 36 | type Substitution = HashMap<Term, Term>;
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `substitute` is never used
[INFO] [stdout]   --> src/main.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl Atom {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 39 |     fn substitute(&self, substitution: Substitution) -> Atom {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `predSym` should have a snake case name
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     predSym: String,
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to snake case: `pred_sym`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "eff2857dbfb07a5e6c9ada03fb3c0dd27ded2fbd3e4ae94ec2ec2f385329e693", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eff2857dbfb07a5e6c9ada03fb3c0dd27ded2fbd3e4ae94ec2ec2f385329e693", kill_on_drop: false }`
[INFO] [stdout] eff2857dbfb07a5e6c9ada03fb3c0dd27ded2fbd3e4ae94ec2ec2f385329e693
