[INFO] cloning repository https://github.com/luatnd/rust-dsa-boilerplate [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luatnd/rust-dsa-boilerplate" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluatnd%2Frust-dsa-boilerplate", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluatnd%2Frust-dsa-boilerplate'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 54e927dd8557ad78be13d195c592ab587619cb3b [INFO] building luatnd/rust-dsa-boilerplate against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluatnd%2Frust-dsa-boilerplate" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/luatnd/rust-dsa-boilerplate on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/luatnd/rust-dsa-boilerplate [INFO] finished tweaking git repo https://github.com/luatnd/rust-dsa-boilerplate [INFO] tweaked toml for git repo https://github.com/luatnd/rust-dsa-boilerplate written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/luatnd/rust-dsa-boilerplate 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cb1b2a2f4801150425661931b00329d4840c574f529cd7a6cdc9a00906353ce7 [INFO] running `Command { std: "docker" "start" "-a" "cb1b2a2f4801150425661931b00329d4840c574f529cd7a6cdc9a00906353ce7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cb1b2a2f4801150425661931b00329d4840c574f529cd7a6cdc9a00906353ce7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cb1b2a2f4801150425661931b00329d4840c574f529cd7a6cdc9a00906353ce7", kill_on_drop: false }` [INFO] [stdout] cb1b2a2f4801150425661931b00329d4840c574f529cd7a6cdc9a00906353ce7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e4046c731a62d8893a22d1d9e111544736ae352806e800fe250e3bdbc50a61cc [INFO] running `Command { std: "docker" "start" "-a" "e4046c731a62d8893a22d1d9e111544736ae352806e800fe250e3bdbc50a61cc", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.142 [INFO] [stderr] Compiling getrandom v0.2.9 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling dsa-rust v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `l1` [INFO] [stdout] --> src/leetcode/l0002_add_two_numbers.rs:73:5 [INFO] [stdout] | [INFO] [stdout] 73 | l1: Option>, [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_l1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `l2` [INFO] [stdout] --> src/leetcode/l0002_add_two_numbers.rs:74:5 [INFO] [stdout] | [INFO] [stdout] 74 | l2: Option>, [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_l2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `traverse_linked_list` is never used [INFO] [stdout] --> src/util/linked_list.rs:75:4 [INFO] [stdout] | [INFO] [stdout] 75 | fn traverse_linked_list(head: &ListNode3Ref) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/leetcode/l0001_two_sum.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 21 | pub struct Solution {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `two_sum` is never used [INFO] [stdout] --> src/leetcode/l0001_two_sum.rs:24:10 [INFO] [stdout] | [INFO] [stdout] 23 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 24 | pub fn two_sum(nums: Vec, target: i32) -> Vec { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/leetcode/l0002_add_two_numbers.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 23 | pub struct Solution {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `add_two_numbers` and `add_two_numbers_naive` are never used [INFO] [stdout] --> src/leetcode/l0002_add_two_numbers.rs:26:10 [INFO] [stdout] | [INFO] [stdout] 25 | impl Solution { [INFO] [stdout] | ------------- associated functions in this implementation [INFO] [stdout] 26 | pub fn add_two_numbers( [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 72 | pub fn add_two_numbers_naive( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/other/this_is_template.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Solution {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `sum` and `sum_naive` are never used [INFO] [stdout] --> src/other/this_is_template.rs:10:10 [INFO] [stdout] | [INFO] [stdout] 9 | impl Solution { [INFO] [stdout] | ------------- associated functions in this implementation [INFO] [stdout] 10 | pub fn sum(a: i32, b: i32) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 14 | pub fn sum_naive(a: i32, b: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.96s [INFO] running `Command { std: "docker" "inspect" "e4046c731a62d8893a22d1d9e111544736ae352806e800fe250e3bdbc50a61cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e4046c731a62d8893a22d1d9e111544736ae352806e800fe250e3bdbc50a61cc", kill_on_drop: false }` [INFO] [stdout] e4046c731a62d8893a22d1d9e111544736ae352806e800fe250e3bdbc50a61cc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0905b0d04a6bf5459a71511202daa00454617908e9c08a1b0fb96462ae391eec [INFO] running `Command { std: "docker" "start" "-a" "0905b0d04a6bf5459a71511202daa00454617908e9c08a1b0fb96462ae391eec", kill_on_drop: false }` [INFO] [stderr] Compiling dsa-rust v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `l1` [INFO] [stdout] --> src/leetcode/l0002_add_two_numbers.rs:73:5 [INFO] [stdout] | [INFO] [stdout] 73 | l1: Option>, [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_l1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `l2` [INFO] [stdout] --> src/leetcode/l0002_add_two_numbers.rs:74:5 [INFO] [stdout] | [INFO] [stdout] 74 | l2: Option>, [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_l2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `traverse_linked_list` is never used [INFO] [stdout] --> src/util/linked_list.rs:75:4 [INFO] [stdout] | [INFO] [stdout] 75 | fn traverse_linked_list(head: &ListNode3Ref) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/leetcode/l0001_two_sum.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 21 | pub struct Solution {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `two_sum` is never used [INFO] [stdout] --> src/leetcode/l0001_two_sum.rs:24:10 [INFO] [stdout] | [INFO] [stdout] 23 | impl Solution { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 24 | pub fn two_sum(nums: Vec, target: i32) -> Vec { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/leetcode/l0002_add_two_numbers.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 23 | pub struct Solution {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `add_two_numbers` and `add_two_numbers_naive` are never used [INFO] [stdout] --> src/leetcode/l0002_add_two_numbers.rs:26:10 [INFO] [stdout] | [INFO] [stdout] 25 | impl Solution { [INFO] [stdout] | ------------- associated functions in this implementation [INFO] [stdout] 26 | pub fn add_two_numbers( [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 72 | pub fn add_two_numbers_naive( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Solution` is never constructed [INFO] [stdout] --> src/other/this_is_template.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Solution {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `sum` and `sum_naive` are never used [INFO] [stdout] --> src/other/this_is_template.rs:10:10 [INFO] [stdout] | [INFO] [stdout] 9 | impl Solution { [INFO] [stdout] | ------------- associated functions in this implementation [INFO] [stdout] 10 | pub fn sum(a: i32, b: i32) -> i32 { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 14 | pub fn sum_naive(a: i32, b: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/other/playground.rs:3:7 [INFO] [stdout] | [INFO] [stdout] 3 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `l1` [INFO] [stdout] --> src/leetcode/l0002_add_two_numbers.rs:73:5 [INFO] [stdout] | [INFO] [stdout] 73 | l1: Option>, [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_l1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `l2` [INFO] [stdout] --> src/leetcode/l0002_add_two_numbers.rs:74:5 [INFO] [stdout] | [INFO] [stdout] 74 | l2: Option>, [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_l2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `traverse_linked_list` is never used [INFO] [stdout] --> src/util/linked_list.rs:75:4 [INFO] [stdout] | [INFO] [stdout] 75 | fn traverse_linked_list(head: &ListNode3Ref) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.66s [INFO] running `Command { std: "docker" "inspect" "0905b0d04a6bf5459a71511202daa00454617908e9c08a1b0fb96462ae391eec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0905b0d04a6bf5459a71511202daa00454617908e9c08a1b0fb96462ae391eec", kill_on_drop: false }` [INFO] [stdout] 0905b0d04a6bf5459a71511202daa00454617908e9c08a1b0fb96462ae391eec