[INFO] fetching crate forktree 2.1.2... [INFO] checking forktree-2.1.2 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1 [INFO] extracting crate forktree 2.1.2 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate forktree 2.1.2 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate forktree 2.1.2 [INFO] finished tweaking crates.io crate forktree 2.1.2 [INFO] tweaked toml for crates.io crate forktree 2.1.2 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 19 packages to latest compatible versions [INFO] [stderr] Adding arrayvec v0.5.2 (latest: v0.7.6) [INFO] [stderr] Adding bitvec v0.20.4 (latest: v1.0.1) [INFO] [stderr] Adding funty v1.1.0 (latest: v2.0.0) [INFO] [stderr] Adding proc-macro-crate v0.1.5 (latest: v3.2.0) [INFO] [stderr] Adding radium v0.6.2 (latest: v1.1.0) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.77) [INFO] [stderr] Adding toml v0.5.11 (latest: v0.8.19) [INFO] [stderr] Adding wyz v0.2.0 (latest: v0.6.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tetsy-scale-codec-derive v2.0.1 [INFO] [stderr] Downloaded tetsy-scale-codec v2.0.1 [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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c728a161ddc81790ebaedd7c3064075d3dd700e570a6858cf1969ff0aada1fad [INFO] running `Command { std: "docker" "start" "-a" "c728a161ddc81790ebaedd7c3064075d3dd700e570a6858cf1969ff0aada1fad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c728a161ddc81790ebaedd7c3064075d3dd700e570a6858cf1969ff0aada1fad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c728a161ddc81790ebaedd7c3064075d3dd700e570a6858cf1969ff0aada1fad", kill_on_drop: false }` [INFO] [stdout] c728a161ddc81790ebaedd7c3064075d3dd700e570a6858cf1969ff0aada1fad [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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5339446f4b0604e7dbeb4bc47040ea3b269fde37dfeadecab36157958dc5e496 [INFO] running `Command { std: "docker" "start" "-a" "5339446f4b0604e7dbeb4bc47040ea3b269fde37dfeadecab36157958dc5e496", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.209 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling radium v0.6.2 [INFO] [stderr] Checking wyz v0.2.0 [INFO] [stderr] Checking funty v1.1.0 [INFO] [stderr] Checking arrayvec v0.5.2 [INFO] [stderr] Checking byte-slice-cast v1.2.2 [INFO] [stderr] Checking bitvec v0.20.4 [INFO] [stderr] Compiling toml v0.5.11 [INFO] [stderr] Compiling proc-macro-crate v0.1.5 [INFO] [stderr] Compiling tetsy-scale-codec-derive v2.0.1 [INFO] [stderr] Checking tetsy-scale-codec v2.0.1 [INFO] [stderr] Checking forktree v2.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1046:36 [INFO] [stdout] | [INFO] [stdout] 1046 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1054:36 [INFO] [stdout] | [INFO] [stdout] 1054 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1068:36 [INFO] [stdout] | [INFO] [stdout] 1068 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1083:36 [INFO] [stdout] | [INFO] [stdout] 1083 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1113:35 [INFO] [stdout] | [INFO] [stdout] 1113 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1146:35 [INFO] [stdout] | [INFO] [stdout] 1146 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1180:35 [INFO] [stdout] | [INFO] [stdout] 1180 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1194:35 [INFO] [stdout] | [INFO] [stdout] 1194 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1214:35 [INFO] [stdout] | [INFO] [stdout] 1214 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1295:35 [INFO] [stdout] | [INFO] [stdout] 1295 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1321:35 [INFO] [stdout] | [INFO] [stdout] 1321 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1365:34 [INFO] [stdout] | [INFO] [stdout] 1365 | tree.iter().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.68s [INFO] running `Command { std: "docker" "inspect" "5339446f4b0604e7dbeb4bc47040ea3b269fde37dfeadecab36157958dc5e496", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5339446f4b0604e7dbeb4bc47040ea3b269fde37dfeadecab36157958dc5e496", kill_on_drop: false }` [INFO] [stdout] 5339446f4b0604e7dbeb4bc47040ea3b269fde37dfeadecab36157958dc5e496 [INFO] checking forktree-2.1.2 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1 [INFO] extracting crate forktree 2.1.2 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate forktree 2.1.2 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate forktree 2.1.2 [INFO] finished tweaking crates.io crate forktree 2.1.2 [INFO] tweaked toml for crates.io crate forktree 2.1.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 19 packages to latest compatible versions [INFO] [stderr] Adding arrayvec v0.5.2 (latest: v0.7.6) [INFO] [stderr] Adding bitvec v0.20.4 (latest: v1.0.1) [INFO] [stderr] Adding funty v1.1.0 (latest: v2.0.0) [INFO] [stderr] Adding proc-macro-crate v0.1.5 (latest: v3.2.0) [INFO] [stderr] Adding radium v0.6.2 (latest: v1.1.0) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.77) [INFO] [stderr] Adding toml v0.5.11 (latest: v0.8.19) [INFO] [stderr] Adding wyz v0.2.0 (latest: v0.6.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 630c15d36e724f962b8b17390984891e8485ddc09dd97dad4a51f69d36930b10 [INFO] running `Command { std: "docker" "start" "-a" "630c15d36e724f962b8b17390984891e8485ddc09dd97dad4a51f69d36930b10", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "630c15d36e724f962b8b17390984891e8485ddc09dd97dad4a51f69d36930b10", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "630c15d36e724f962b8b17390984891e8485ddc09dd97dad4a51f69d36930b10", kill_on_drop: false }` [INFO] [stdout] 630c15d36e724f962b8b17390984891e8485ddc09dd97dad4a51f69d36930b10 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0437783f0e7f51cbca3a0b0e6edc29342f19012cb7138071f6128972d9b4a843 [INFO] running `Command { std: "docker" "start" "-a" "0437783f0e7f51cbca3a0b0e6edc29342f19012cb7138071f6128972d9b4a843", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.209 [INFO] [stderr] Compiling radium v0.6.2 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking funty v1.1.0 [INFO] [stderr] Checking wyz v0.2.0 [INFO] [stderr] Checking byte-slice-cast v1.2.2 [INFO] [stderr] Checking arrayvec v0.5.2 [INFO] [stderr] Checking bitvec v0.20.4 [INFO] [stderr] Compiling toml v0.5.11 [INFO] [stderr] Compiling proc-macro-crate v0.1.5 [INFO] [stderr] Compiling tetsy-scale-codec-derive v2.0.1 [INFO] [stderr] Checking tetsy-scale-codec v2.0.1 [INFO] [stderr] Checking forktree v2.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1046:36 [INFO] [stdout] | [INFO] [stdout] 1046 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1054:36 [INFO] [stdout] | [INFO] [stdout] 1054 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1068:36 [INFO] [stdout] | [INFO] [stdout] 1068 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1083:36 [INFO] [stdout] | [INFO] [stdout] 1083 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1113:35 [INFO] [stdout] | [INFO] [stdout] 1113 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1146:35 [INFO] [stdout] | [INFO] [stdout] 1146 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1180:35 [INFO] [stdout] | [INFO] [stdout] 1180 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1194:35 [INFO] [stdout] | [INFO] [stdout] 1194 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1214:35 [INFO] [stdout] | [INFO] [stdout] 1214 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1295:35 [INFO] [stdout] | [INFO] [stdout] 1295 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1321:35 [INFO] [stdout] | [INFO] [stdout] 1321 | tree.roots().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type [INFO] [stdout] --> src/lib.rs:1365:34 [INFO] [stdout] | [INFO] [stdout] 1365 | tree.iter().map(|(h, n, _)| (h.clone(), n.clone())).collect::>(), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.36s [INFO] running `Command { std: "docker" "inspect" "0437783f0e7f51cbca3a0b0e6edc29342f19012cb7138071f6128972d9b4a843", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0437783f0e7f51cbca3a0b0e6edc29342f19012cb7138071f6128972d9b4a843", kill_on_drop: false }` [INFO] [stdout] 0437783f0e7f51cbca3a0b0e6edc29342f19012cb7138071f6128972d9b4a843