[INFO] cloning repository https://github.com/samlloydw/interval-map
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/samlloydw/interval-map" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamlloydw%2Finterval-map", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamlloydw%2Finterval-map'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 038681c6d3a1ccc59e10951602095c283d18ee78
[INFO] checking samlloydw/interval-map against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamlloydw%2Finterval-map" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/samlloydw/interval-map on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/samlloydw/interval-map
[INFO] finished tweaking git repo https://github.com/samlloydw/interval-map
[INFO] tweaked toml for git repo https://github.com/samlloydw/interval-map written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/samlloydw/interval-map already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fed891fc3bef81a0001be857931b22ec05ca10c1dba96e93d17132bb64e5b93
[INFO] running `Command { std: "docker" "start" "-a" "6fed891fc3bef81a0001be857931b22ec05ca10c1dba96e93d17132bb64e5b93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fed891fc3bef81a0001be857931b22ec05ca10c1dba96e93d17132bb64e5b93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fed891fc3bef81a0001be857931b22ec05ca10c1dba96e93d17132bb64e5b93", kill_on_drop: false }`
[INFO] [stdout] 6fed891fc3bef81a0001be857931b22ec05ca10c1dba96e93d17132bb64e5b93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23f5f94eaddb3ca61de0666e52e3f3760bd92229bbec2f591c575017c597f933
[INFO] running `Command { std: "docker" "start" "-a" "23f5f94eaddb3ca61de0666e52e3f3760bd92229bbec2f591c575017c597f933", kill_on_drop: false }`
[INFO] [stderr]     Checking interval_map v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `next_value` is never used
[INFO] [stdout]    --> src/interval_map/mod.rs:120:8
[INFO] [stdout]     |
[INFO] [stdout] 20  | / impl<K, V> IntervalMap<K, V> 
[INFO] [stdout] 21  | | where
[INFO] [stdout] 22  | |     K: Ord + Eq + Hash + Clone,
[INFO] [stdout] 23  | |     V: Eq + Clone, // Make clone as we have to copy default vals
[INFO] [stdout]     | |__________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 120 |       fn next_value(&self, key: &K) -> &V {
[INFO] [stdout]     |          ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next_value` is never used
[INFO] [stdout]    --> src/interval_map/mod.rs:120:8
[INFO] [stdout]     |
[INFO] [stdout] 20  | / impl<K, V> IntervalMap<K, V> 
[INFO] [stdout] 21  | | where
[INFO] [stdout] 22  | |     K: Ord + Eq + Hash + Clone,
[INFO] [stdout] 23  | |     V: Eq + Clone, // Make clone as we have to copy default vals
[INFO] [stdout]     | |__________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 120 |       fn next_value(&self, key: &K) -> &V {
[INFO] [stdout]     |          ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "23f5f94eaddb3ca61de0666e52e3f3760bd92229bbec2f591c575017c597f933", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23f5f94eaddb3ca61de0666e52e3f3760bd92229bbec2f591c575017c597f933", kill_on_drop: false }`
[INFO] [stdout] 23f5f94eaddb3ca61de0666e52e3f3760bd92229bbec2f591c575017c597f933