[INFO] cloning repository https://github.com/ViliLipo/mini-pascal-compiler
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ViliLipo/mini-pascal-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FViliLipo%2Fmini-pascal-compiler"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FViliLipo%2Fmini-pascal-compiler'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1c898509ccbe7b27cd7e7307b5b48c305b405c08
[INFO] checking ViliLipo/mini-pascal-compiler against master#339f574809bf8e4166b8de3cdbe7df181d37af3d for pr-71896
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FViliLipo%2Fmini-pascal-compiler" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ViliLipo/mini-pascal-compiler on toolchain 339f574809bf8e4166b8de3cdbe7df181d37af3d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ViliLipo/mini-pascal-compiler
[INFO] finished tweaking git repo https://github.com/ViliLipo/mini-pascal-compiler
[INFO] tweaked toml for git repo https://github.com/ViliLipo/mini-pascal-compiler written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ViliLipo/mini-pascal-compiler already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ef16d82c8d6317e24e6f03155ecd33589001c9cee0fd14f7c83591a9eaabf3ac
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "ef16d82c8d6317e24e6f03155ecd33589001c9cee0fd14f7c83591a9eaabf3ac"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking mini-pascal-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `crate::symboltable::Entry`
[INFO] [stderr]  --> src/codegenvisitor.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::symboltable::Entry;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufReader`
[INFO] [stderr]  --> src/codegenvisitor.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::BufReader;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::symboltable::Entry`
[INFO] [stderr]  --> src/codegenvisitor.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::symboltable::Entry;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufReader`
[INFO] [stderr]  --> src/codegenvisitor.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::BufReader;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let mut ast = parser.program();
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let mut ast = parser.program();
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Constants`
[INFO] [stderr]  --> src/constants.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Constants {}
[INFO] [stderr]   |            ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_predefined_identifiers`
[INFO] [stderr]   --> src/constants.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn get_predefined_identifiers<'a>() -> Vec<&'a str> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_visible`
[INFO] [stderr]    --> src/symboltable.rs:153:5
[INFO] [stderr]     |
[INFO] [stderr] 153 |     pub fn is_visible(&self, name: &String) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Constants`
[INFO] [stderr]  --> src/constants.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Constants {}
[INFO] [stderr]   |            ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_predefined_identifiers`
[INFO] [stderr]   --> src/constants.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn get_predefined_identifiers<'a>() -> Vec<&'a str> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_visible`
[INFO] [stderr]    --> src/symboltable.rs:153:5
[INFO] [stderr]     |
[INFO] [stderr] 153 |     pub fn is_visible(&self, name: &String) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `"docker" "inspect" "ef16d82c8d6317e24e6f03155ecd33589001c9cee0fd14f7c83591a9eaabf3ac"`
[INFO] running `"docker" "rm" "-f" "ef16d82c8d6317e24e6f03155ecd33589001c9cee0fd14f7c83591a9eaabf3ac"`
[INFO] [stdout] ef16d82c8d6317e24e6f03155ecd33589001c9cee0fd14f7c83591a9eaabf3ac