[INFO] fetching crate nested_intervals 0.2.0...
[INFO] checking nested_intervals-0.2.0 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate nested_intervals 0.2.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate nested_intervals 0.2.0 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate nested_intervals 0.2.0
[INFO] finished tweaking crates.io crate nested_intervals 0.2.0
[INFO] tweaked toml for crates.io crate nested_intervals 0.2.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f7d140e02ac4770e8cc076f8e94eafbc8a2aad9ccdfa8165686a53ef78efab4b
[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" "f7d140e02ac4770e8cc076f8e94eafbc8a2aad9ccdfa8165686a53ef78efab4b"`
[INFO] [stderr]     Checking superslice v1.0.0
[INFO] [stderr]     Checking nested_intervals v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/lib.rs:480:38
[INFO] [stderr]     |
[INFO] [stderr] 480 |                 keep[ii - 1] = false;;
[INFO] [stderr]     |                                      ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolon)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/lib.rs:940:67
[INFO] [stderr]     |
[INFO] [stderr] 940 |         assert!(!IntervalSet::new(&vec![]).unwrap().any_nested());;
[INFO] [stderr]     |                                                                   ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/lib.rs:941:75
[INFO] [stderr]     |
[INFO] [stderr] 941 |         assert!(!IntervalSet::new(&vec![100..150]).unwrap().any_nested());;
[INFO] [stderr]     |                                                                           ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/lib.rs:944:28
[INFO] [stderr]     |
[INFO] [stderr] 944 |             .any_nested());;
[INFO] [stderr]     |                            ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/lib.rs:947:28
[INFO] [stderr]     |
[INFO] [stderr] 947 |             .any_nested());;
[INFO] [stderr]     |                            ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/lib.rs:950:28
[INFO] [stderr]     |
[INFO] [stderr] 950 |             .any_nested());;
[INFO] [stderr]     |                            ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/lib.rs:953:28
[INFO] [stderr]     |
[INFO] [stderr] 953 |             .any_nested());;
[INFO] [stderr]     |                            ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/lib.rs:480:38
[INFO] [stderr]     |
[INFO] [stderr] 480 |                 keep[ii - 1] = false;;
[INFO] [stderr]     |                                      ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolon)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/lib.rs:1516:9
[INFO] [stderr]      |
[INFO] [stderr] 1516 |         n.has_overlap(&(0..1));
[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 2.26s
[INFO] running `"docker" "inspect" "f7d140e02ac4770e8cc076f8e94eafbc8a2aad9ccdfa8165686a53ef78efab4b"`
[INFO] running `"docker" "rm" "-f" "f7d140e02ac4770e8cc076f8e94eafbc8a2aad9ccdfa8165686a53ef78efab4b"`
[INFO] [stdout] f7d140e02ac4770e8cc076f8e94eafbc8a2aad9ccdfa8165686a53ef78efab4b