[INFO] updating cached repository https://github.com/michaltakac/bergen-math-simple
[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] 633706094339da2fa4996fba46f8f327807cfa4b
[INFO] checking michaltakac/bergen-math-simple against try#8a749131e7beb72f6edacefd2bdcbed3d67b2112 for pr-72331
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaltakac%2Fbergen-math-simple" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/michaltakac/bergen-math-simple on toolchain 8a749131e7beb72f6edacefd2bdcbed3d67b2112
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/michaltakac/bergen-math-simple
[INFO] finished tweaking git repo https://github.com/michaltakac/bergen-math-simple
[INFO] tweaked toml for git repo https://github.com/michaltakac/bergen-math-simple written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/michaltakac/bergen-math-simple already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "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] 5c7f4a37f48e2d5764ad3e1ed5b71ba0eaa86c07ee9adec4da8e3787841b9843
[INFO] running `"docker" "start" "-a" "5c7f4a37f48e2d5764ad3e1ed5b71ba0eaa86c07ee9adec4da8e3787841b9843"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
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[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:30:57
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Err(why) => panic!("couldn't open {}: {}", display, Error::description(&why)),
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:37:57
[INFO] [stderr]    |
[INFO] [stderr] 37 |     Err(why) => panic!("couldn't read {}: {}", display, Error::description(&why)),
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `latex`
[INFO] [stderr]    --> src/main.rs:132:7
[INFO] [stderr]     |
[INFO] [stderr] 132 |   let latex = r#"
[INFO] [stderr]     |       ^^^^^ help: if this is intentional, prefix it with an underscore: `_latex`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:45:3
[INFO] [stderr]    |
[INFO] [stderr] 45 | /   prepare_final_tex(
[INFO] [stderr] 46 | |     s,
[INFO] [stderr] 47 | |     "pr1-ing-10".to_string(),
[INFO] [stderr] 48 | |     "pr2-ing-5".to_string(),
[INFO] [stderr] 49 | |     "pr3-ing-12".to_string(),
[INFO] [stderr] 50 | |   );
[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: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:30:57
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Err(why) => panic!("couldn't open {}: {}", display, Error::description(&why)),
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:37:57
[INFO] [stderr]    |
[INFO] [stderr] 37 |     Err(why) => panic!("couldn't read {}: {}", display, Error::description(&why)),
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `latex`
[INFO] [stderr]    --> src/main.rs:132:7
[INFO] [stderr]     |
[INFO] [stderr] 132 |   let latex = r#"
[INFO] [stderr]     |       ^^^^^ help: if this is intentional, prefix it with an underscore: `_latex`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:45:3
[INFO] [stderr]    |
[INFO] [stderr] 45 | /   prepare_final_tex(
[INFO] [stderr] 46 | |     s,
[INFO] [stderr] 47 | |     "pr1-ing-10".to_string(),
[INFO] [stderr] 48 | |     "pr2-ing-5".to_string(),
[INFO] [stderr] 49 | |     "pr3-ing-12".to_string(),
[INFO] [stderr] 50 | |   );
[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: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 36s
[INFO] running `"docker" "inspect" "5c7f4a37f48e2d5764ad3e1ed5b71ba0eaa86c07ee9adec4da8e3787841b9843"`
[INFO] running `"docker" "rm" "-f" "5c7f4a37f48e2d5764ad3e1ed5b71ba0eaa86c07ee9adec4da8e3787841b9843"`
[INFO] [stdout] 5c7f4a37f48e2d5764ad3e1ed5b71ba0eaa86c07ee9adec4da8e3787841b9843