[INFO] cloning repository https://github.com/gregcsokas/rust-practices [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gregcsokas/rust-practices" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgregcsokas%2Frust-practices", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgregcsokas%2Frust-practices'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 62ffd1cad6c5932b792d08a15f0bc73ba21c221d [INFO] checking gregcsokas/rust-practices against try#654bc80249a2b2ba8bd16392b5829d87ed96c92d for pr-136458 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgregcsokas%2Frust-practices" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/gregcsokas/rust-practices on toolchain 654bc80249a2b2ba8bd16392b5829d87ed96c92d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/gregcsokas/rust-practices [INFO] finished tweaking git repo https://github.com/gregcsokas/rust-practices [INFO] tweaked toml for git repo https://github.com/gregcsokas/rust-practices written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/gregcsokas/rust-practices already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 83eab5fdc6dbdab28ba0d20feae718833eda38ed0d11bcf7f2ece35556e9f9a1 [INFO] running `Command { std: "docker" "start" "-a" "83eab5fdc6dbdab28ba0d20feae718833eda38ed0d11bcf7f2ece35556e9f9a1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "83eab5fdc6dbdab28ba0d20feae718833eda38ed0d11bcf7f2ece35556e9f9a1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "83eab5fdc6dbdab28ba0d20feae718833eda38ed0d11bcf7f2ece35556e9f9a1", kill_on_drop: false }` [INFO] [stdout] 83eab5fdc6dbdab28ba0d20feae718833eda38ed0d11bcf7f2ece35556e9f9a1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+654bc80249a2b2ba8bd16392b5829d87ed96c92d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8445dd1d36b846b4b5e8ef5ae8aae594ead9ffd8aee9fb39b4b3c47f38e8e2e5 [INFO] running `Command { std: "docker" "start" "-a" "8445dd1d36b846b4b5e8ef5ae8aae594ead9ffd8aee9fb39b4b3c47f38e8e2e5", kill_on_drop: false }` [INFO] [stderr] Checking dsa v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: type alias `Link` is never used [INFO] [stdout] --> src/linked_list/mod.rs:4:6 [INFO] [stdout] | [INFO] [stdout] 4 | type Link = Option>>; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/linked_list/mod.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/linked_list/mod.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 11 | impl Node { [INFO] [stdout] | --------- associated function in this implementation [INFO] [stdout] 12 | fn new(value: String) -> Rc> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `TransactionLog` is never constructed [INFO] [stdout] --> src/linked_list/mod.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | struct TransactionLog { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new_empty`, `append`, and `pop` are never used [INFO] [stdout] --> src/linked_list/mod.rs:31:12 [INFO] [stdout] | [INFO] [stdout] 30 | impl TransactionLog { [INFO] [stdout] | ------------------- associated items in this implementation [INFO] [stdout] 31 | pub fn new_empty() -> TransactionLog { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | pub fn append(&mut self, value: String) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | pub fn pop(&mut self) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/doubly_linked_list/mod.rs:14:8 [INFO] [stdout] | [INFO] [stdout] 13 | impl Node { [INFO] [stdout] | --------- associated function in this implementation [INFO] [stdout] 14 | fn new(value: String) -> Rc> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/doubly_linked_list/mod.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 32 | impl ListIterator { [INFO] [stdout] | ----------------- associated function in this implementation [INFO] [stdout] 33 | fn new(start_at: Link) -> ListIterator { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `BetterTransactionLog` is never constructed [INFO] [stdout] --> src/doubly_linked_list/mod.rs:78:12 [INFO] [stdout] | [INFO] [stdout] 78 | pub struct BetterTransactionLog { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `BetterTransactionLog` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `append`, `pop`, `back_iter`, and `iter` are never used [INFO] [stdout] --> src/doubly_linked_list/mod.rs:85:12 [INFO] [stdout] | [INFO] [stdout] 84 | impl BetterTransactionLog { [INFO] [stdout] | ------------------------- associated items in this implementation [INFO] [stdout] 85 | pub fn new() -> BetterTransactionLog { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 93 | pub fn append(&mut self, value: String) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 108 | pub fn pop(&mut self) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 127 | pub fn back_iter(self) -> ListIterator { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 131 | pub fn iter(&self) -> ListIterator { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/doubly_linked_list/mod.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 32 | impl ListIterator { [INFO] [stdout] | ----------------- associated function in this implementation [INFO] [stdout] 33 | fn new(start_at: Link) -> ListIterator { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `back_iter` and `iter` are never used [INFO] [stdout] --> src/doubly_linked_list/mod.rs:127:12 [INFO] [stdout] | [INFO] [stdout] 84 | impl BetterTransactionLog { [INFO] [stdout] | ------------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 127 | pub fn back_iter(self) -> ListIterator { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 131 | pub fn iter(&self) -> ListIterator { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s [INFO] running `Command { std: "docker" "inspect" "8445dd1d36b846b4b5e8ef5ae8aae594ead9ffd8aee9fb39b4b3c47f38e8e2e5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8445dd1d36b846b4b5e8ef5ae8aae594ead9ffd8aee9fb39b4b3c47f38e8e2e5", kill_on_drop: false }` [INFO] [stdout] 8445dd1d36b846b4b5e8ef5ae8aae594ead9ffd8aee9fb39b4b3c47f38e8e2e5