[INFO] cloning repository https://github.com/mcdearman/leetcode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mcdearman/leetcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcdearman%2Fleetcode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcdearman%2Fleetcode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8972c30e98bcc9b2808c5c4d5d2c6fd79b5008b5
[INFO] building mcdearman/leetcode 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%2Fmcdearman%2Fleetcode" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mcdearman/leetcode 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/mcdearman/leetcode
[INFO] finished tweaking git repo https://github.com/mcdearman/leetcode
[INFO] tweaked toml for git repo https://github.com/mcdearman/leetcode written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mcdearman/leetcode 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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a2c6d0c95fdca64aa76aa61af17e2d99a321192fb49f9c15b370f40184d3fab0
[INFO] running `Command { std: "docker" "start" "-a" "a2c6d0c95fdca64aa76aa61af17e2d99a321192fb49f9c15b370f40184d3fab0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2c6d0c95fdca64aa76aa61af17e2d99a321192fb49f9c15b370f40184d3fab0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2c6d0c95fdca64aa76aa61af17e2d99a321192fb49f9c15b370f40184d3fab0", kill_on_drop: false }`
[INFO] [stdout] a2c6d0c95fdca64aa76aa61af17e2d99a321192fb49f9c15b370f40184d3fab0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 2fe8f62774b3a30b7ccf1a4f5cf2173f401d1e0f7ca14762ee4028cd884e3c2c
[INFO] running `Command { std: "docker" "start" "-a" "2fe8f62774b3a30b7ccf1a4f5cf2173f401d1e0f7ca14762ee4028cd884e3c2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/p1/mod.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]  --> src/p1909/mod.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn can_be_increasing(nums: Vec<i32>) -> bool {
[INFO] [stdout]   |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `two_sum` is never used
[INFO] [stdout]  --> src/p1/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `max_profit` is never used
[INFO] [stdout]  --> src/p121/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn max_profit(prices: Vec<i32>) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `can_be_increasing` is never used
[INFO] [stdout]  --> src/p1909/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn can_be_increasing(nums: Vec<i32>) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/p2/mod.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl ListNode {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 8 |     #[inline]
[INFO] [stdout] 9 |     fn new(val: i32) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_two_numbers` is never used
[INFO] [stdout]   --> src/p2/mod.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn add_two_numbers(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `contains_duplicate` is never used
[INFO] [stdout]  --> src/p217/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn contains_duplicate(nums: Vec<i32>) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `length_of_longest_substring` is never used
[INFO] [stdout]  --> src/p3/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn length_of_longest_substring(s: String) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_median_sorted_arrays` is never used
[INFO] [stdout]  --> src/p4/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn find_median_sorted_arrays(mut a: Vec<i32>, mut b: Vec<i32>) -> f64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unwrap_min` is never used
[INFO] [stdout]   --> src/p4/mod.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn unwrap_min(a: Option<&i32>, b: Option<&i32>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `binary_search` is never used
[INFO] [stdout]   --> src/p4/mod.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn binary_search(
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "2fe8f62774b3a30b7ccf1a4f5cf2173f401d1e0f7ca14762ee4028cd884e3c2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fe8f62774b3a30b7ccf1a4f5cf2173f401d1e0f7ca14762ee4028cd884e3c2c", kill_on_drop: false }`
[INFO] [stdout] 2fe8f62774b3a30b7ccf1a4f5cf2173f401d1e0f7ca14762ee4028cd884e3c2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c60c93c8b6efc740691a5bd781d581d2fc0a39052164299d1682bd0a2ed1c43c
[INFO] running `Command { std: "docker" "start" "-a" "c60c93c8b6efc740691a5bd781d581d2fc0a39052164299d1682bd0a2ed1c43c", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/p1/mod.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]  --> src/p1909/mod.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn can_be_increasing(nums: Vec<i32>) -> bool {
[INFO] [stdout]   |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `two_sum` is never used
[INFO] [stdout]  --> src/p1/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `max_profit` is never used
[INFO] [stdout]  --> src/p121/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn max_profit(prices: Vec<i32>) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `can_be_increasing` is never used
[INFO] [stdout]  --> src/p1909/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn can_be_increasing(nums: Vec<i32>) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/p2/mod.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl ListNode {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 8 |     #[inline]
[INFO] [stdout] 9 |     fn new(val: i32) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_two_numbers` is never used
[INFO] [stdout]   --> src/p2/mod.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn add_two_numbers(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `contains_duplicate` is never used
[INFO] [stdout]  --> src/p217/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn contains_duplicate(nums: Vec<i32>) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `length_of_longest_substring` is never used
[INFO] [stdout]  --> src/p3/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn length_of_longest_substring(s: String) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_median_sorted_arrays` is never used
[INFO] [stdout]  --> src/p4/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn find_median_sorted_arrays(mut a: Vec<i32>, mut b: Vec<i32>) -> f64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unwrap_min` is never used
[INFO] [stdout]   --> src/p4/mod.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn unwrap_min(a: Option<&i32>, b: Option<&i32>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `binary_search` is never used
[INFO] [stdout]   --> src/p4/mod.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn binary_search(
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]  --> src/p1909/mod.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn can_be_increasing(nums: Vec<i32>) -> bool {
[INFO] [stdout]   |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `can_be_increasing` is never used
[INFO] [stdout]  --> src/p1909/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn can_be_increasing(nums: Vec<i32>) -> bool {
[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/p2/mod.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl ListNode {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 8 |     #[inline]
[INFO] [stdout] 9 |     fn new(val: i32) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_two_numbers` is never used
[INFO] [stdout]   --> src/p2/mod.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn add_two_numbers(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `contains_duplicate` is never used
[INFO] [stdout]  --> src/p217/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn contains_duplicate(nums: Vec<i32>) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_median_sorted_arrays` is never used
[INFO] [stdout]  --> src/p4/mod.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn find_median_sorted_arrays(mut a: Vec<i32>, mut b: Vec<i32>) -> f64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unwrap_min` is never used
[INFO] [stdout]   --> src/p4/mod.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn unwrap_min(a: Option<&i32>, b: Option<&i32>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `binary_search` is never used
[INFO] [stdout]   --> src/p4/mod.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn binary_search(
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "c60c93c8b6efc740691a5bd781d581d2fc0a39052164299d1682bd0a2ed1c43c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c60c93c8b6efc740691a5bd781d581d2fc0a39052164299d1682bd0a2ed1c43c", kill_on_drop: false }`
[INFO] [stdout] c60c93c8b6efc740691a5bd781d581d2fc0a39052164299d1682bd0a2ed1c43c