[INFO] fetching crate graph_symmetry 0.1.1...
[INFO] checking graph_symmetry-0.1.1 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate graph_symmetry 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate graph_symmetry 0.1.1 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 graph_symmetry 0.1.1
[INFO] finished tweaking crates.io crate graph_symmetry 0.1.1
[INFO] tweaked toml for crates.io crate graph_symmetry 0.1.1 written to /workspace/builds/worker-4-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]     Updating crates.io index
[INFO] [stderr]      Locking 18 packages to latest compatible versions
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded chem v0.0.2
[INFO] [stderr]   Downloaded purr v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a02479eb7bcd775676e7e45049c24e4f18d35c5336a3c8acb617f44f1889ccf0
[INFO] running `Command { std: "docker" "start" "-a" "a02479eb7bcd775676e7e45049c24e4f18d35c5336a3c8acb617f44f1889ccf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a02479eb7bcd775676e7e45049c24e4f18d35c5336a3c8acb617f44f1889ccf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a02479eb7bcd775676e7e45049c24e4f18d35c5336a3c8acb617f44f1889ccf0", kill_on_drop: false }`
[INFO] [stdout] a02479eb7bcd775676e7e45049c24e4f18d35c5336a3c8acb617f44f1889ccf0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 4ffaa79572e780d2cf0e2fc567b03e841cea18a40c53beecd0e1b2f5828077c0
[INFO] running `Command { std: "docker" "start" "-a" "4ffaa79572e780d2cf0e2fc567b03e841cea18a40c53beecd0e1b2f5828077c0", kill_on_drop: false }`
[INFO] [stderr]     Checking purr v0.9.0
[INFO] [stderr]     Checking chem v0.0.2
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking graph_symmetry v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/ext/molecule/element.rs:159:67
[INFO] [stdout]     |
[INFO] [stdout] 159 |             purr::feature::BracketSymbol::Element(ele) => Some(ele.clone()),
[INFO] [stdout]     |                                                                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `purr::feature::Element` does not implement `Clone`, so calling `clone` on `&purr::feature::Element` 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] 159 -             purr::feature::BracketSymbol::Element(ele) => Some(ele.clone()),
[INFO] [stdout] 159 +             purr::feature::BracketSymbol::Element(ele) => Some(ele),
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `purr::feature::Element`, implement `Clone` for it
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/purr-0.9.0/src/feature/element.rs:5:1
[INFO] [stdout]     |
[INFO] [stdout] 5   + #[derive(Clone)]
[INFO] [stdout] 6   | pub enum Element {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/ext/molecule/element.rs:159:67
[INFO] [stdout]     |
[INFO] [stdout] 159 |             purr::feature::BracketSymbol::Element(ele) => Some(ele.clone()),
[INFO] [stdout]     |                                                                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `purr::feature::Element` does not implement `Clone`, so calling `clone` on `&purr::feature::Element` 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] 159 -             purr::feature::BracketSymbol::Element(ele) => Some(ele.clone()),
[INFO] [stdout] 159 +             purr::feature::BracketSymbol::Element(ele) => Some(ele),
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `purr::feature::Element`, implement `Clone` for it
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/purr-0.9.0/src/feature/element.rs:5:1
[INFO] [stdout]     |
[INFO] [stdout] 5   + #[derive(Clone)]
[INFO] [stdout] 6   | pub enum Element {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "4ffaa79572e780d2cf0e2fc567b03e841cea18a40c53beecd0e1b2f5828077c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ffaa79572e780d2cf0e2fc567b03e841cea18a40c53beecd0e1b2f5828077c0", kill_on_drop: false }`
[INFO] [stdout] 4ffaa79572e780d2cf0e2fc567b03e841cea18a40c53beecd0e1b2f5828077c0