[INFO] cloning repository https://github.com/shakyShane/dsa [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shakyShane/dsa" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FshakyShane%2Fdsa", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FshakyShane%2Fdsa'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 11e0aaa299cace58592011852945d2fe53b23555 [INFO] checking shakyShane/dsa against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FshakyShane%2Fdsa" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/shakyShane/dsa on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/shakyShane/dsa [INFO] finished tweaking git repo https://github.com/shakyShane/dsa [INFO] tweaked toml for git repo https://github.com/shakyShane/dsa written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/shakyShane/dsa already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2f0a621532ffa65b16a7623568b93f3993e9b3d5e0df9ca36d389a93233e3be7 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "2f0a621532ffa65b16a7623568b93f3993e9b3d5e0df9ca36d389a93233e3be7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2f0a621532ffa65b16a7623568b93f3993e9b3d5e0df9ca36d389a93233e3be7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2f0a621532ffa65b16a7623568b93f3993e9b3d5e0df9ca36d389a93233e3be7", kill_on_drop: false }` [INFO] [stdout] 2f0a621532ffa65b16a7623568b93f3993e9b3d5e0df9ca36d389a93233e3be7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3facf899e9e700b6ccad06179c9be5d4841b1c0bf2aaca40fb0f5abd98ea007d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "3facf899e9e700b6ccad06179c9be5d4841b1c0bf2aaca40fb0f5abd98ea007d", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking dsa v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function is never used: `binary_search` [INFO] [stdout] --> src/binary_search.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn binary_search(k: i32, items: &Vec) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/unival_subtrees.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 9 | pub fn new(value: impl Into, left: Option>, right: Option>) -> Node { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `count_unival_subtrees` [INFO] [stdout] --> src/unival_subtrees.rs:40:4 [INFO] [stdout] | [INFO] [stdout] 40 | fn count_unival_subtrees(root: &Option>) -> (usize, bool) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/serialize_tree.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 9 | pub fn new(value: impl Into, left: Option>, right: Option>) -> Node { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `serialize` [INFO] [stdout] --> src/serialize_tree.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 25 | pub fn serialize(root: &Option>) -> String { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Tree` [INFO] [stdout] --> src/serialize_tree.rs:32:8 [INFO] [stdout] | [INFO] [stdout] 32 | struct Tree { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `deserialize` [INFO] [stdout] --> src/serialize_tree.rs:51:12 [INFO] [stdout] | [INFO] [stdout] 51 | pub fn deserialize(&mut self) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `from_str` [INFO] [stdout] --> src/serialize_tree.rs:61:12 [INFO] [stdout] | [INFO] [stdout] 61 | pub fn from_str(input: impl Into) -> Tree { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `root` [INFO] [stdout] --> src/serialize_tree.rs:72:9 [INFO] [stdout] | [INFO] [stdout] 72 | let root = Node::new("1", [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_root` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.62s [INFO] running `Command { std: "docker" "inspect" "3facf899e9e700b6ccad06179c9be5d4841b1c0bf2aaca40fb0f5abd98ea007d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3facf899e9e700b6ccad06179c9be5d4841b1c0bf2aaca40fb0f5abd98ea007d", kill_on_drop: false }` [INFO] [stdout] 3facf899e9e700b6ccad06179c9be5d4841b1c0bf2aaca40fb0f5abd98ea007d