[INFO] cloning repository https://github.com/quody/mahjong-combinations
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/quody/mahjong-combinations" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquody%2Fmahjong-combinations", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquody%2Fmahjong-combinations'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 139636f9af7a02e5b7fb082b834ea2b21c5fc719
[INFO] checking quody/mahjong-combinations against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquody%2Fmahjong-combinations" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/quody/mahjong-combinations
[INFO] finished tweaking git repo https://github.com/quody/mahjong-combinations
[INFO] tweaked toml for git repo https://github.com/quody/mahjong-combinations written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/quody/mahjong-combinations on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/quody/mahjong-combinations 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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27bd359a14827b3b9b451b813693aeff3befe3ef49735246e3b0d963e94e0e46
[INFO] running `Command { std: "docker" "start" "-a" "27bd359a14827b3b9b451b813693aeff3befe3ef49735246e3b0d963e94e0e46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27bd359a14827b3b9b451b813693aeff3befe3ef49735246e3b0d963e94e0e46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27bd359a14827b3b9b451b813693aeff3befe3ef49735246e3b0d963e94e0e46", kill_on_drop: false }`
[INFO] [stdout] 27bd359a14827b3b9b451b813693aeff3befe3ef49735246e3b0d963e94e0e46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8fd88737608bad71e59a8d861a1a27389f65348a919928e6cda0aedd1a5cc95
[INFO] running `Command { std: "docker" "start" "-a" "e8fd88737608bad71e59a8d861a1a27389f65348a919928e6cda0aedd1a5cc95", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling enum-iterator-derive v0.6.0
[INFO] [stderr]     Checking enum-iterator v0.6.0
[INFO] [stderr]     Checking mahjong-combinations v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `get_shanten`
[INFO] [stdout]   --> src/main.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 | use mahjong_logic::{get_shanten, complete_set, tiles_to_chance};
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::partition_combinations::PartitionCombinable`
[INFO] [stdout]  --> src/tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::partition_combinations::PartitionCombinable;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/main.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | mod tests;
[INFO] [stdout]   | ^^^^^^^^^^
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `test::Bencher`
[INFO] [stdout]  --> src/tests.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use test::Bencher;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/main.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | mod tests;
[INFO] [stdout]   | ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `get_shanten`
[INFO] [stdout]   --> src/main.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 | use mahjong_logic::{get_shanten, complete_set, tiles_to_chance};
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/mahjong_logic.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |     for i in 0..*v
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CombinationsWithSplit` is never constructed
[INFO] [stdout]  --> src/combinations_with_split.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct CombinationsWithSplit<I: Iterator> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `combinations_with_split` is never used
[INFO] [stdout]   --> src/combinations_with_split.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn combinations_with_split<I>(iter: I, k: usize) -> CombinationsWithSplit<I>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CombinableWithSplit` is never used
[INFO] [stdout]    --> src/combinations_with_split.rs:100:11
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub trait CombinableWithSplit<I> 
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_shanten` is never used
[INFO] [stdout]  --> src/mahjong_logic.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn get_shanten(hand: &Vec<Tiles>)
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shanten_helper` is never used
[INFO] [stdout]   --> src/mahjong_logic.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn shanten_helper(set: &Vec<Tiles>) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LazyBuffer` is never constructed
[INFO] [stdout]  --> src/lazy_buffer.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct LazyBuffer<I: Iterator> {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `len`, `is_done`, and `get_next` are never used
[INFO] [stdout]   --> src/lazy_buffer.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | / impl<I> LazyBuffer<I>
[INFO] [stdout] 11 | | where
[INFO] [stdout] 12 | |     I: Iterator,
[INFO] [stdout]    | |________________- associated items in this implementation
[INFO] [stdout] 13 |   {
[INFO] [stdout] 14 |       pub fn new(it: I) -> LazyBuffer<I> {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |       pub fn len(&self) -> usize {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |       pub fn is_done(&self) -> bool {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |       pub fn get_next(&mut self) -> bool {
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/mahjong_logic.rs:92:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |     for i in 0..*v
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Stack` is never used
[INFO] [stdout]  --> src/partition_combinations.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum Stack {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PartitionCombinations` is never constructed
[INFO] [stdout]   --> src/partition_combinations.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct PartitionCombinations<I: Iterator> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `partition_combinations` is never used
[INFO] [stdout]   --> src/partition_combinations.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn partition_combinations<I>(iter: I, k: usize) -> PartitionCombinations<I>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `PartitionCombinable` is never used
[INFO] [stdout]    --> src/partition_combinations.rs:137:11
[INFO] [stdout]     |
[INFO] [stdout] 137 | pub trait PartitionCombinable<I> 
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CombinationsWithSplit` is never constructed
[INFO] [stdout]  --> src/combinations_with_split.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct CombinationsWithSplit<I: Iterator> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `combinations_with_split` is never used
[INFO] [stdout]   --> src/combinations_with_split.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn combinations_with_split<I>(iter: I, k: usize) -> CombinationsWithSplit<I>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CombinableWithSplit` is never used
[INFO] [stdout]    --> src/combinations_with_split.rs:100:11
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub trait CombinableWithSplit<I> 
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_shanten` is never used
[INFO] [stdout]  --> src/mahjong_logic.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn get_shanten(hand: &Vec<Tiles>)
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shanten_helper` is never used
[INFO] [stdout]   --> src/mahjong_logic.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn shanten_helper(set: &Vec<Tiles>) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LazyBuffer` is never constructed
[INFO] [stdout]  --> src/lazy_buffer.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct LazyBuffer<I: Iterator> {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `len`, `is_done`, and `get_next` are never used
[INFO] [stdout]   --> src/lazy_buffer.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | / impl<I> LazyBuffer<I>
[INFO] [stdout] 11 | | where
[INFO] [stdout] 12 | |     I: Iterator,
[INFO] [stdout]    | |________________- associated items in this implementation
[INFO] [stdout] 13 |   {
[INFO] [stdout] 14 |       pub fn new(it: I) -> LazyBuffer<I> {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |       pub fn len(&self) -> usize {
[INFO] [stdout]    |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |       pub fn is_done(&self) -> bool {
[INFO] [stdout]    |              ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |       pub fn get_next(&mut self) -> bool {
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.52s
[INFO] running `Command { std: "docker" "inspect" "e8fd88737608bad71e59a8d861a1a27389f65348a919928e6cda0aedd1a5cc95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8fd88737608bad71e59a8d861a1a27389f65348a919928e6cda0aedd1a5cc95", kill_on_drop: false }`
[INFO] [stdout] e8fd88737608bad71e59a8d861a1a27389f65348a919928e6cda0aedd1a5cc95
