[INFO] updating cached repository https://github.com/SaturnTeam/rust-algorithms
[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] 285781471f85260557e7b4c7abe2a364be9dd5b8
[INFO] testing SaturnTeam/rust-algorithms against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSaturnTeam%2Frust-algorithms" "/workspace/builds/worker-10/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SaturnTeam/rust-algorithms on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/SaturnTeam/rust-algorithms
[INFO] finished tweaking git repo https://github.com/SaturnTeam/rust-algorithms
[INFO] tweaked toml for git repo https://github.com/SaturnTeam/rust-algorithms written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/SaturnTeam/rust-algorithms already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e0eccb3ca7eea2ed62b63b7e5e26024ec8e3bd5cd3856af396a78da460a7ae00
[INFO] running `"docker" "start" "-a" "e0eccb3ca7eea2ed62b63b7e5e26024ec8e3bd5cd3856af396a78da460a7ae00"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling a v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Rng`, `thread_rng`
[INFO] [stderr]  --> src/alg/max_pq.rs:5:18
[INFO] [stderr]   |
[INFO] [stderr] 5 | use self::rand::{thread_rng, Rng};
[INFO] [stderr]   |                  ^^^^^^^^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]    --> src/alg/uf.rs:182:28
[INFO] [stderr]     |
[INFO] [stderr] 182 |     let count = first_line.trim_right().parse::<usize>().unwrap();
[INFO] [stderr]     |                            ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0282]: type annotations needed
[INFO] [stderr]   --> src/alg/max_pq.rs:99:13
[INFO] [stderr]    |
[INFO] [stderr] 99 |             Err(MyError::new("Priority queue underflow"));
[INFO] [stderr]    |             ^^^ cannot infer type for type parameter `T` declared on the enum `Result`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0282`.
[INFO] [stderr] error: could not compile `a`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e0eccb3ca7eea2ed62b63b7e5e26024ec8e3bd5cd3856af396a78da460a7ae00"`
[INFO] running `"docker" "rm" "-f" "e0eccb3ca7eea2ed62b63b7e5e26024ec8e3bd5cd3856af396a78da460a7ae00"`
[INFO] [stdout] e0eccb3ca7eea2ed62b63b7e5e26024ec8e3bd5cd3856af396a78da460a7ae00