[INFO] cloning repository https://github.com/15jgme/shallow_red_engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/15jgme/shallow_red_engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F15jgme%2Fshallow_red_engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F15jgme%2Fshallow_red_engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 40ec8eb4067cf8ba3d95d743be6114e25691f9a3
[INFO] checking 15jgme/shallow_red_engine against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F15jgme%2Fshallow_red_engine" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/15jgme/shallow_red_engine on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/15jgme/shallow_red_engine
[INFO] finished tweaking git repo https://github.com/15jgme/shallow_red_engine
[INFO] tweaked toml for git repo https://github.com/15jgme/shallow_red_engine written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/15jgme/shallow_red_engine 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serial_test v0.4.0
[INFO] [stderr]   Downloaded serial_test_derive v0.4.0
[INFO] [stderr]   Downloaded serde v1.0.177
[INFO] [stderr]   Downloaded chess v3.2.0
[INFO] [stderr]   Downloaded serde_derive v1.0.177
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2737005ad0ebca605e331bb892c09eb2ae84400978527c9338e4851733acb3c
[INFO] running `Command { std: "docker" "start" "-a" "a2737005ad0ebca605e331bb892c09eb2ae84400978527c9338e4851733acb3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2737005ad0ebca605e331bb892c09eb2ae84400978527c9338e4851733acb3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2737005ad0ebca605e331bb892c09eb2ae84400978527c9338e4851733acb3c", kill_on_drop: false }`
[INFO] [stdout] a2737005ad0ebca605e331bb892c09eb2ae84400978527c9338e4851733acb3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d12132e4911970be7510e5d26eea21293d6013cfe40cb7f24fb9ef446a77b519
[INFO] running `Command { std: "docker" "start" "-a" "d12132e4911970be7510e5d26eea21293d6013cfe40cb7f24fb9ef446a77b519", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling gimli v0.27.3
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling serde v1.0.177
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling serde_derive v1.0.177
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking object v0.31.1
[INFO] [stderr]    Compiling backtrace v0.3.68
[INFO] [stderr]    Compiling quote v1.0.31
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking parking_lot_core v0.7.3
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking addr2line v0.20.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serial_test_derive v0.4.0
[INFO] [stderr]     Checking serial_test v0.4.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling chess v3.2.0
[INFO] [stderr]     Checking shallow_red_engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Board` is imported redundantly
[INFO] [stdout]    --> src/engine.rs:169:17
[INFO] [stdout]     |
[INFO] [stdout] 168 |     use super::*;
[INFO] [stdout]     |         -------- the item `Board` is already imported here
[INFO] [stdout] 169 |     use chess::{Board, Square};
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Eval` is imported redundantly
[INFO] [stdout]    --> src/evaluation.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 179 |     use super::*;
[INFO] [stdout]     |         -------- the item `Eval` is already imported here
[INFO] [stdout] 180 |     use crate::utils::common::Eval;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Board` is imported redundantly
[INFO] [stdout]    --> src/evaluation.rs:181:9
[INFO] [stdout]     |
[INFO] [stdout] 179 |     use super::*;
[INFO] [stdout]     |         -------- the item `Board` is already imported here
[INFO] [stdout] 180 |     use crate::utils::common::Eval;
[INFO] [stdout] 181 |     use chess::Board;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Board` is imported redundantly
[INFO] [stdout]   --> src/gamestate.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     use super::*;
[INFO] [stdout]    |         -------- the item `Board` is already imported here
[INFO] [stdout] 36 |     use chess::Board;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BitBoard`, `Piece`
[INFO] [stdout]  --> src/extensions.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use chess::{BitBoard, Board, BoardStatus, Piece, EMPTY};
[INFO] [stdout]   |             ^^^^^^^^                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BitBoard`, `Piece`
[INFO] [stdout]  --> src/extensions.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use chess::{BitBoard, Board, BoardStatus, Piece, EMPTY};
[INFO] [stdout]   |             ^^^^^^^^                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `skip_tt_push` is assigned to, but never used
[INFO] [stdout]   --> src/search.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut skip_tt_push = false; // Flag for whether or not we should avoid pushing to the TT
[INFO] [stdout]    |             ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_skip_tt_push` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `skip_tt_push` is never read
[INFO] [stdout]   --> src/search.rs:43:21
[INFO] [stdout]    |
[INFO] [stdout] 43 |                     skip_tt_push = current_lookahead < cache_lookahead; // Don't replace in TT if our lookahead is worse
[INFO] [stdout]    |                     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `skip_tt_push` is assigned to, but never used
[INFO] [stdout]   --> src/search.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut skip_tt_push = false; // Flag for whether or not we should avoid pushing to the TT
[INFO] [stdout]    |             ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_skip_tt_push` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `skip_tt_push` is never read
[INFO] [stdout]   --> src/search.rs:43:21
[INFO] [stdout]    |
[INFO] [stdout] 43 |                     skip_tt_push = current_lookahead < cache_lookahead; // Don't replace in TT if our lookahead is worse
[INFO] [stdout]    |                     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RetreivedCacheData` is never constructed
[INFO] [stdout]   --> src/ordering.rs:19:19
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) struct RetreivedCacheData {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RetreivedCacheData` is never constructed
[INFO] [stdout]   --> src/ordering.rs:19:19
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) struct RetreivedCacheData {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `Command { std: "docker" "inspect" "d12132e4911970be7510e5d26eea21293d6013cfe40cb7f24fb9ef446a77b519", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d12132e4911970be7510e5d26eea21293d6013cfe40cb7f24fb9ef446a77b519", kill_on_drop: false }`
[INFO] [stdout] d12132e4911970be7510e5d26eea21293d6013cfe40cb7f24fb9ef446a77b519