[INFO] updating cached repository https://github.com/theor/rust-chess
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d57cdd582a8e5581b5cdc5af560e5d2aef325de7
[INFO] checking theor/rust-chess against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheor%2Frust-chess" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/theor/rust-chess on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/theor/rust-chess
[INFO] finished tweaking git repo https://github.com/theor/rust-chess
[INFO] tweaked toml for git repo https://github.com/theor/rust-chess written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/theor/rust-chess already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] afc1b043ae1830a01da4bfedb24fdaca7fb6ae47bf170dbeea2ec127da808ef1
[INFO] running `"docker" "start" "-a" "afc1b043ae1830a01da4bfedb24fdaca7fb6ae47bf170dbeea2ec127da808ef1"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking galvanic-assert v0.8.7
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking backtrace v0.3.15
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking simplelog v0.5.3
[INFO] [stderr]     Checking chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/ai.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 |     eval: Box<Evaluator>,
[INFO] [stderr]   |               ^^^^^^^^^ help: use `dyn`: `dyn Evaluator`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/board.rs:260:15
[INFO] [stderr]     |
[INFO] [stderr] 260 |         ffn: &Fn(Option<(Piece, Color)>, &mut fmt::Formatter) -> (),
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Option<(Piece, Color)>, &mut fmt::Formatter) -> ()`
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `char::ParseCharError`, `num::ParseIntError`
[INFO] [stderr]    --> src/move_generator.rs:124:11
[INFO] [stderr]     |
[INFO] [stderr] 124 | use std::{char::ParseCharError, num::ParseIntError};
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/move_generator.rs:412:14
[INFO] [stderr]     |
[INFO] [stderr] 412 |             1...6 => {
[INFO] [stderr]     |              ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SubCommand`
[INFO] [stderr]   --> src/main.rs:20:22
[INFO] [stderr]    |
[INFO] [stderr] 20 | use clap::{App, Arg, SubCommand};
[INFO] [stderr]    |                      ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Player` is imported redundantly
[INFO] [stderr]   --> src/main.rs:98:9
[INFO] [stderr]    |
[INFO] [stderr] 29 | use player::Player;
[INFO] [stderr]    |     -------------- the item `Player` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 98 |     use crate::player::Player;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:114:33
[INFO] [stderr]     |
[INFO] [stderr] 114 |         let (cur, color): (&mut Player, Color) = if t % 2 == 0 {
[INFO] [stderr]     |                                 ^^^^^^ help: use `dyn`: `dyn Player`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/ai.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 |     eval: Box<Evaluator>,
[INFO] [stderr]   |               ^^^^^^^^^ help: use `dyn`: `dyn Evaluator`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/board.rs:260:15
[INFO] [stderr]     |
[INFO] [stderr] 260 |         ffn: &Fn(Option<(Piece, Color)>, &mut fmt::Formatter) -> (),
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Option<(Piece, Color)>, &mut fmt::Formatter) -> ()`
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `char::ParseCharError`, `num::ParseIntError`
[INFO] [stderr]    --> src/move_generator.rs:124:11
[INFO] [stderr]     |
[INFO] [stderr] 124 | use std::{char::ParseCharError, num::ParseIntError};
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/move_generator.rs:412:14
[INFO] [stderr]     |
[INFO] [stderr] 412 |             1...6 => {
[INFO] [stderr]     |              ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SubCommand`
[INFO] [stderr]   --> src/main.rs:20:22
[INFO] [stderr]    |
[INFO] [stderr] 20 | use clap::{App, Arg, SubCommand};
[INFO] [stderr]    |                      ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Player` is imported redundantly
[INFO] [stderr]   --> src/main.rs:98:9
[INFO] [stderr]    |
[INFO] [stderr] 29 | use player::Player;
[INFO] [stderr]    |     -------------- the item `Player` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 98 |     use crate::player::Player;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:114:33
[INFO] [stderr]     |
[INFO] [stderr] 114 |         let (cur, color): (&mut Player, Color) = if t % 2 == 0 {
[INFO] [stderr]     |                                 ^^^^^^ help: use `dyn`: `dyn Player`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Capture`
[INFO] [stderr]    --> src/main.rs:267:38
[INFO] [stderr]     |
[INFO] [stderr] 267 |     use crate::validator::MoveType::{Capture, Quiet};
[INFO] [stderr]     |                                      ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]    --> src/move_generator.rs:183:5
[INFO] [stderr]     |
[INFO] [stderr] 183 |     color: Color,
[INFO] [stderr]     |     ^^^^^ help: consider prefixing with an underscore: `_color`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]    --> src/move_generator.rs:290:5
[INFO] [stderr]     |
[INFO] [stderr] 290 |     color: Color,
[INFO] [stderr]     |     ^^^^^ help: consider prefixing with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]    --> src/move_generator.rs:305:5
[INFO] [stderr]     |
[INFO] [stderr] 305 |     color: Color,
[INFO] [stderr]     |     ^^^^^ help: consider prefixing with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]    --> src/move_generator.rs:321:5
[INFO] [stderr]     |
[INFO] [stderr] 321 |     color: Color,
[INFO] [stderr]     |     ^^^^^ help: consider prefixing with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]    --> src/move_generator.rs:346:5
[INFO] [stderr]     |
[INFO] [stderr] 346 |     color: Color,
[INFO] [stderr]     |     ^^^^^ help: consider prefixing with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]    --> src/move_generator.rs:108:76
[INFO] [stderr]     |
[INFO] [stderr] 108 |         write!(f, "{}{}{}", self.from, self.to, self.promotion.map_or("", |p| ""))
[INFO] [stderr]     |                                                                            ^ help: consider prefixing with an underscore: `_p`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]    --> src/move_generator.rs:183:5
[INFO] [stderr]     |
[INFO] [stderr] 183 |     color: Color,
[INFO] [stderr]     |     ^^^^^ help: consider prefixing with an underscore: `_color`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]    --> src/move_generator.rs:290:5
[INFO] [stderr]     |
[INFO] [stderr] 290 |     color: Color,
[INFO] [stderr]     |     ^^^^^ help: consider prefixing with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]    --> src/move_generator.rs:305:5
[INFO] [stderr]     |
[INFO] [stderr] 305 |     color: Color,
[INFO] [stderr]     |     ^^^^^ help: consider prefixing with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]    --> src/move_generator.rs:321:5
[INFO] [stderr]     |
[INFO] [stderr] 321 |     color: Color,
[INFO] [stderr]     |     ^^^^^ help: consider prefixing with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]    --> src/move_generator.rs:346:5
[INFO] [stderr]     |
[INFO] [stderr] 346 |     color: Color,
[INFO] [stderr]     |     ^^^^^ help: consider prefixing with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]    --> src/move_generator.rs:108:76
[INFO] [stderr]     |
[INFO] [stderr] 108 |         write!(f, "{}{}{}", self.from, self.to, self.promotion.map_or("", |p| ""))
[INFO] [stderr]     |                                                                            ^ help: consider prefixing with an underscore: `_p`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `rng`
[INFO] [stderr]  --> src/ai.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     rng: SmallRng,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_fen`
[INFO] [stderr]    --> src/board.rs:360:1
[INFO] [stderr]     |
[INFO] [stderr] 360 | pub fn parse_fen(s: &str) -> Option<Board> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse`
[INFO] [stderr]    --> src/board.rs:372:1
[INFO] [stderr]     |
[INFO] [stderr] 372 | pub fn parse(s: &str) -> Option<Board> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Error`
[INFO] [stderr]    --> src/move_generator.rs:128:5
[INFO] [stderr]     |
[INFO] [stderr] 128 |     Error,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `rng`
[INFO] [stderr]  --> src/ai.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     rng: SmallRng,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Error`
[INFO] [stderr]    --> src/move_generator.rs:128:5
[INFO] [stderr]     |
[INFO] [stderr] 128 |     Error,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.18s
[INFO] running `"docker" "inspect" "afc1b043ae1830a01da4bfedb24fdaca7fb6ae47bf170dbeea2ec127da808ef1"`
[INFO] running `"docker" "rm" "-f" "afc1b043ae1830a01da4bfedb24fdaca7fb6ae47bf170dbeea2ec127da808ef1"`
[INFO] [stdout] afc1b043ae1830a01da4bfedb24fdaca7fb6ae47bf170dbeea2ec127da808ef1