[INFO] updating cached repository https://github.com/Shannarra/cobra
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c13ae20512292ff7f6e588190825e39b745ed9b4
[INFO] checking Shannarra/cobra against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShannarra%2Fcobra" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Shannarra/cobra on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Shannarra/cobra
[INFO] finished tweaking git repo https://github.com/Shannarra/cobra
[INFO] tweaked toml for git repo https://github.com/Shannarra/cobra written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Shannarra/cobra already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fc5ecb094c5b3df230d5a80cd8333cceb8993c7bda349dcf495d2cf49bb82894
[INFO] running `"docker" "start" "-a" "fc5ecb094c5b3df230d5a80cd8333cceb8993c7bda349dcf495d2cf49bb82894"`
[INFO] [stderr]     Checking cobra v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::any::Any`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::any::Any;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/cobra/scopes/scope.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::cobra::scope`
[INFO] [stderr]  --> src/cobra/scopes/scopes_container.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::cobra::scope;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::any::Any`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::any::Any;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/cobra/scopes/scope.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::cobra::scope`
[INFO] [stderr]  --> src/cobra/scopes/scopes_container.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::cobra::scope;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get`
[INFO] [stderr]   --> src/cobra/scopes/scope.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn get(&self, what: &str) -> Option<usize> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get`
[INFO] [stderr]   --> src/cobra/scopes/scope.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn get(&self, what: &str) -> Option<usize> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_keyword`
[INFO] [stderr]   --> src/cobra/keyword.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn is_keyword(&self, st :&String) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 25 |        execute_result.map_err(|err| println!("{}", err.to_string()));
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_keyword`
[INFO] [stderr]   --> src/cobra/keyword.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn is_keyword(&self, st :&String) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 25 |        execute_result.map_err(|err| println!("{}", err.to_string()));
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `"docker" "inspect" "fc5ecb094c5b3df230d5a80cd8333cceb8993c7bda349dcf495d2cf49bb82894"`
[INFO] running `"docker" "rm" "-f" "fc5ecb094c5b3df230d5a80cd8333cceb8993c7bda349dcf495d2cf49bb82894"`
[INFO] [stdout] fc5ecb094c5b3df230d5a80cd8333cceb8993c7bda349dcf495d2cf49bb82894