[INFO] cloning repository https://github.com/iwahbe/First_Order_Logician
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iwahbe/First_Order_Logician" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiwahbe%2FFirst_Order_Logician", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiwahbe%2FFirst_Order_Logician'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8a6fc6cef8178032560d1311dd162cbb01a85fc9
[INFO] checking iwahbe/First_Order_Logician against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiwahbe%2FFirst_Order_Logician" "/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/iwahbe/First_Order_Logician on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iwahbe/First_Order_Logician
[INFO] finished tweaking git repo https://github.com/iwahbe/First_Order_Logician
[INFO] tweaked toml for git repo https://github.com/iwahbe/First_Order_Logician written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/iwahbe/First_Order_Logician already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 38bd34a5e703fe3640ce650d299f2d3c6688a344b72e73824b503ff02fe09ab3
[INFO] running `Command { std: "docker" "start" "-a" "38bd34a5e703fe3640ce650d299f2d3c6688a344b72e73824b503ff02fe09ab3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38bd34a5e703fe3640ce650d299f2d3c6688a344b72e73824b503ff02fe09ab3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38bd34a5e703fe3640ce650d299f2d3c6688a344b72e73824b503ff02fe09ab3", kill_on_drop: false }`
[INFO] [stdout] 38bd34a5e703fe3640ce650d299f2d3c6688a344b72e73824b503ff02fe09ab3
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e40c9cd1b27933b8ed9d86ed6d8eff4d6e06e24e5019107d83d4030f22af8b7f
[INFO] running `Command { std: "docker" "start" "-a" "e40c9cd1b27933b8ed9d86ed6d8eff4d6e06e24e5019107d83d4030f22af8b7f", kill_on_drop: false }`
[INFO] [stderr]     Checking first_order_logician v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Quantifier`
[INFO] [stdout]  --> src/parser.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Quantifier(&'static str),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `tokenize_numbers`
[INFO] [stdout]   --> src/parser.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn tokenize_numbers(nums: &str) -> Result<Vec<u32>, String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_num_char_tuple`
[INFO] [stdout]   --> src/parser.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn parse_num_char_tuple(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_refs`
[INFO] [stdout]   --> src/parser.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |         fn parse_refs(&mut self, refs: &str) -> Result<u8, String> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/parser.rs:87:16
[INFO] [stdout]    |
[INFO] [stdout] 87 |         pub fn new() -> GPLModel {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_domain`
[INFO] [stdout]   --> src/parser.rs:95:16
[INFO] [stdout]    |
[INFO] [stdout] 95 |         pub fn parse_domain(&mut self, domain: &str) -> Result<u8, String> {
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]    --> src/parser.rs:258:16
[INFO] [stdout]     |
[INFO] [stdout] 258 |         pub fn add(&mut self, c: char) -> bool {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Quantifier`
[INFO] [stdout]  --> src/parser.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Quantifier(&'static str),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_num_char_tuple`
[INFO] [stdout]   --> src/parser.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn parse_num_char_tuple(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_refs`
[INFO] [stdout]   --> src/parser.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |         fn parse_refs(&mut self, refs: &str) -> Result<u8, String> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]    --> src/parser.rs:258:16
[INFO] [stdout]     |
[INFO] [stdout] 258 |         pub fn add(&mut self, c: char) -> bool {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/parser.rs:124:9
[INFO] [stdout]     |
[INFO] [stdout] 124 |         model1.parse_domain("1 3 4 22 87");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e40c9cd1b27933b8ed9d86ed6d8eff4d6e06e24e5019107d83d4030f22af8b7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e40c9cd1b27933b8ed9d86ed6d8eff4d6e06e24e5019107d83d4030f22af8b7f", kill_on_drop: false }`
[INFO] [stdout] e40c9cd1b27933b8ed9d86ed6d8eff4d6e06e24e5019107d83d4030f22af8b7f