[INFO] cloning repository https://github.com/rubenjr0/semantic_table
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rubenjr0/semantic_table" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frubenjr0%2Fsemantic_table", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frubenjr0%2Fsemantic_table'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2ce9877993466bfd40732ba4f95e2a3834e6b2c6
[INFO] checking rubenjr0/semantic_table against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frubenjr0%2Fsemantic_table" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rubenjr0/semantic_table
[INFO] finished tweaking git repo https://github.com/rubenjr0/semantic_table
[INFO] tweaked toml for git repo https://github.com/rubenjr0/semantic_table written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rubenjr0/semantic_table on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rubenjr0/semantic_table 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1299d1cb9e8b8eedd499096d7736b6f4bfd5b918bf06733028dcc5c019d0b089
[INFO] running `Command { std: "docker" "start" "-a" "1299d1cb9e8b8eedd499096d7736b6f4bfd5b918bf06733028dcc5c019d0b089", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1299d1cb9e8b8eedd499096d7736b6f4bfd5b918bf06733028dcc5c019d0b089", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1299d1cb9e8b8eedd499096d7736b6f4bfd5b918bf06733028dcc5c019d0b089", kill_on_drop: false }`
[INFO] [stdout] 1299d1cb9e8b8eedd499096d7736b6f4bfd5b918bf06733028dcc5c019d0b089
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6a30c9abb4d027020aee343339a5ac311c62138dd40c1aee7b49d949c823c64
[INFO] running `Command { std: "docker" "start" "-a" "c6a30c9abb4d027020aee343339a5ac311c62138dd40c1aee7b49d949c823c64", kill_on_drop: false }`
[INFO] [stderr]     Checking semantic_table v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `env::vars_os` and `fmt::Display`
[INFO] [stdout]  --> src/expression.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::BTreeSet, env::vars_os, fmt::Display, rc::Rc};
[INFO] [stdout]   |                                  ^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `env::vars_os` and `fmt::Display`
[INFO] [stdout]  --> src/expression.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::BTreeSet, env::vars_os, fmt::Display, rc::Rc};
[INFO] [stdout]   |                                  ^^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Rule` is never used
[INFO] [stdout]  --> src/expression.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Rule {
[INFO] [stdout]   |          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `rule` is never used
[INFO] [stdout]   --> src/expression.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl Expression {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn rule(&self) -> Option<Rule> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `variables` is never read
[INFO] [stdout]  --> src/semantic_table.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct SemanticTable {
[INFO] [stdout]   |            ------------- field in this struct
[INFO] [stdout] 7 |     expressions: Vec<Expression>,
[INFO] [stdout] 8 |     variables: BTreeSet<char>,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `SemanticTable` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `variables` is never used
[INFO] [stdout]   --> src/semantic_table.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl SemanticTable {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn variables(self) -> BTreeSet<char> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Rule` is never used
[INFO] [stdout]  --> src/expression.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Rule {
[INFO] [stdout]   |          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `rule` is never used
[INFO] [stdout]   --> src/expression.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl Expression {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn rule(&self) -> Option<Rule> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `variables` is never read
[INFO] [stdout]  --> src/semantic_table.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct SemanticTable {
[INFO] [stdout]   |            ------------- field in this struct
[INFO] [stdout] 7 |     expressions: Vec<Expression>,
[INFO] [stdout] 8 |     variables: BTreeSet<char>,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `SemanticTable` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `variables` is never used
[INFO] [stdout]   --> src/semantic_table.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl SemanticTable {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn variables(self) -> BTreeSet<char> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "c6a30c9abb4d027020aee343339a5ac311c62138dd40c1aee7b49d949c823c64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6a30c9abb4d027020aee343339a5ac311c62138dd40c1aee7b49d949c823c64", kill_on_drop: false }`
[INFO] [stdout] c6a30c9abb4d027020aee343339a5ac311c62138dd40c1aee7b49d949c823c64