[INFO] fetching crate sorted-list 0.2.0...
[INFO] checking sorted-list-0.2.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate sorted-list 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate sorted-list 0.2.0 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 crates.io crate sorted-list 0.2.0
[INFO] finished tweaking crates.io crate sorted-list 0.2.0
[INFO] tweaked toml for crates.io crate sorted-list 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] dd9a919dea17f2fbde27fb7af8b0f17fce726245b0947c1998ce9f43ecf51e6d
[INFO] running `Command { std: "docker" "start" "-a" "dd9a919dea17f2fbde27fb7af8b0f17fce726245b0947c1998ce9f43ecf51e6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd9a919dea17f2fbde27fb7af8b0f17fce726245b0947c1998ce9f43ecf51e6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd9a919dea17f2fbde27fb7af8b0f17fce726245b0947c1998ce9f43ecf51e6d", kill_on_drop: false }`
[INFO] [stdout] dd9a919dea17f2fbde27fb7af8b0f17fce726245b0947c1998ce9f43ecf51e6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] c4110df1cc38405f8eb2eebaa7f248586b3db77f0d689c963ef0ab5b06301dba
[INFO] running `Command { std: "docker" "start" "-a" "c4110df1cc38405f8eb2eebaa7f248586b3db77f0d689c963ef0ab5b06301dba", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking sorted-list v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/lib.rs:561:9
[INFO] [stdout]     |
[INFO] [stdout] 561 | /         /// 1000, 100 => 4.08s (3.76s release) originally
[INFO] [stdout] 562 | |         /// 1000, 100 for copy types: 0.66s (0.23s release)
[INFO] [stdout]     | |___________________________________________________________^
[INFO] [stdout] 563 |           let max_key = 1000;
[INFO] [stdout]     |           ------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ResultExt` is never used
[INFO] [stdout]    --> src/lib.rs:192:7
[INFO] [stdout]     |
[INFO] [stdout] 192 | trait ResultExt<A> {
[INFO] [stdout]     |       ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ResultExt` is never used
[INFO] [stdout]    --> src/lib.rs:192:7
[INFO] [stdout]     |
[INFO] [stdout] 192 | trait ResultExt<A> {
[INFO] [stdout]     |       ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:364:28
[INFO] [stdout]     |
[INFO] [stdout] 364 |             keys: self.keys.clone(),
[INFO] [stdout]     |                            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Vec<K>` does not implement `Clone`, so calling `clone` on `&Vec<K>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 364 -             keys: self.keys.clone(),
[INFO] [stdout] 364 +             keys: self.keys,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:364:28
[INFO] [stdout]     |
[INFO] [stdout] 364 |             keys: self.keys.clone(),
[INFO] [stdout]     |                            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Vec<K>` does not implement `Clone`, so calling `clone` on `&Vec<K>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 364 -             keys: self.keys.clone(),
[INFO] [stdout] 364 +             keys: self.keys,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:365:32
[INFO] [stdout]     |
[INFO] [stdout] 365 |             values: self.values.clone(),
[INFO] [stdout]     |                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Vec<V>` does not implement `Clone`, so calling `clone` on `&Vec<V>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 365 -             values: self.values.clone(),
[INFO] [stdout] 365 +             values: self.values,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:365:32
[INFO] [stdout]     |
[INFO] [stdout] 365 |             values: self.values.clone(),
[INFO] [stdout]     |                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Vec<V>` does not implement `Clone`, so calling `clone` on `&Vec<V>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 365 -             values: self.values.clone(),
[INFO] [stdout] 365 +             values: self.values,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "c4110df1cc38405f8eb2eebaa7f248586b3db77f0d689c963ef0ab5b06301dba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4110df1cc38405f8eb2eebaa7f248586b3db77f0d689c963ef0ab5b06301dba", kill_on_drop: false }`
[INFO] [stdout] c4110df1cc38405f8eb2eebaa7f248586b3db77f0d689c963ef0ab5b06301dba