[INFO] fetching crate jungle 0.1.1... [INFO] checking jungle-0.1.1 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate jungle 0.1.1 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate jungle 0.1.1 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate jungle 0.1.1 [INFO] finished tweaking crates.io crate jungle 0.1.1 [INFO] tweaked toml for crates.io crate jungle 0.1.1 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 3 packages to latest compatible versions [INFO] [stderr] Adding generic-array v0.5.1 (available: v1.1.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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] 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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f45d971a6e1e210a1d0642d62aee162777bd934fcbfb110bf6c9ab1b36562431 [INFO] running `Command { std: "docker" "start" "-a" "f45d971a6e1e210a1d0642d62aee162777bd934fcbfb110bf6c9ab1b36562431", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f45d971a6e1e210a1d0642d62aee162777bd934fcbfb110bf6c9ab1b36562431", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f45d971a6e1e210a1d0642d62aee162777bd934fcbfb110bf6c9ab1b36562431", kill_on_drop: false }` [INFO] [stdout] f45d971a6e1e210a1d0642d62aee162777bd934fcbfb110bf6c9ab1b36562431 [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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 72e59ab5f2480c6387b3ce39a27d92743753c35a901b95f3e7de926d39a553a2 [INFO] running `Command { std: "docker" "start" "-a" "72e59ab5f2480c6387b3ce39a27d92743753c35a901b95f3e7de926d39a553a2", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling typenum v1.17.0 [INFO] [stderr] Checking nodrop v0.1.14 [INFO] [stderr] Checking generic-array v0.5.1 [INFO] [stderr] Checking jungle v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `value`, `parent`, and `children` are never read [INFO] [stdout] --> src/tree.rs:26:2 [INFO] [stdout] | [INFO] [stdout] 25 | struct Node>> { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 26 | value: T, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 27 | parent: NodePointer, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 28 | children: GenericArray,N> [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/tree.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 31 | / impl Node [INFO] [stdout] 32 | | where N: ArrayLength> { [INFO] [stdout] | |___________________________________________- associated function in this implementation [INFO] [stdout] 33 | fn new(value: T) -> Self{ [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Tree` is never constructed [INFO] [stdout] --> src/tree.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 42 | struct Tree>>(NodePointer); [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `parent`, and `child` are never used [INFO] [stdout] --> src/tree.rs:47:5 [INFO] [stdout] | [INFO] [stdout] 44 | / impl Tree [INFO] [stdout] 45 | | where N: ArrayLength> { [INFO] [stdout] | |___________________________________________- associated items in this implementation [INFO] [stdout] 46 | [INFO] [stdout] 47 | fn new(value: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | fn parent(&mut self) -> bool{ [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 61 | fn child(&mut self, child: usize) -> bool { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `value`, `parent`, and `children` are never read [INFO] [stdout] --> src/tree.rs:26:2 [INFO] [stdout] | [INFO] [stdout] 25 | struct Node>> { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 26 | value: T, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 27 | parent: NodePointer, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 28 | children: GenericArray,N> [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/tree.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 31 | / impl Node [INFO] [stdout] 32 | | where N: ArrayLength> { [INFO] [stdout] | |___________________________________________- associated function in this implementation [INFO] [stdout] 33 | fn new(value: T) -> Self{ [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Tree` is never constructed [INFO] [stdout] --> src/tree.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 42 | struct Tree>>(NodePointer); [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `parent`, and `child` are never used [INFO] [stdout] --> src/tree.rs:47:5 [INFO] [stdout] | [INFO] [stdout] 44 | / impl Tree [INFO] [stdout] 45 | | where N: ArrayLength> { [INFO] [stdout] | |___________________________________________- associated items in this implementation [INFO] [stdout] 46 | [INFO] [stdout] 47 | fn new(value: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | fn parent(&mut self) -> bool{ [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 61 | fn child(&mut self, child: usize) -> bool { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.63s [INFO] running `Command { std: "docker" "inspect" "72e59ab5f2480c6387b3ce39a27d92743753c35a901b95f3e7de926d39a553a2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "72e59ab5f2480c6387b3ce39a27d92743753c35a901b95f3e7de926d39a553a2", kill_on_drop: false }` [INFO] [stdout] 72e59ab5f2480c6387b3ce39a27d92743753c35a901b95f3e7de926d39a553a2