[INFO] cloning repository https://github.com/paulolemus/blunders
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/paulolemus/blunders" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaulolemus%2Fblunders", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 59df66726599599bf9016c3ea1a0a2ec9512c13f
[INFO] checking paulolemus/blunders against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaulolemus%2Fblunders" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paulolemus/blunders on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
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[INFO] started tweaking git repo https://github.com/paulolemus/blunders
[INFO] finished tweaking git repo https://github.com/paulolemus/blunders
[INFO] tweaked toml for git repo https://github.com/paulolemus/blunders written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/paulolemus/blunders already has a lockfile, it will not be regenerated
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[INFO] [stdout] bf9bd45e0b946388e866fc252c2134b71ecf24511db327b2d12e63b77bf014a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 9c2c185e627b637aa92a8672af02a538e5171884f2a2efe8291ae7bf36f4f53c
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[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking arrayvec v0.7.1
[INFO] [stderr]     Checking plotters-backend v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking plotters-svg v0.3.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling cast v0.2.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking criterion-plot v0.4.4
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking crossbeam-epoch v0.9.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking blunders-engine v0.1.0 (/opt/rustwide/workdir/blunders-engine)
[INFO] [stdout] warning: fields `id` and `name` are never read
[INFO] [stdout]   --> blunders-engine/src/threads.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Thread {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 34 |     pub id: usize,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 35 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Thread` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `threads` is never read
[INFO] [stdout]   --> blunders-engine/src/threads.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct ThreadPool {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 95 |     num_threads: usize,
[INFO] [stdout] 96 |     threads: Vec<Thread>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ThreadPool` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking blunders v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.5
[INFO] [stdout] warning: the item `Move` is imported redundantly
[INFO] [stdout]  --> blunders-engine/tests/simple_tactics.rs:6:44
[INFO] [stdout]   |
[INFO] [stdout] 6 | use blunders_engine::coretypes::{Color::*, Move, PieceKind::*, Square::*};
[INFO] [stdout]   |                                            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 | use blunders_engine::*;
[INFO] [stdout]   |     ------------------ the item `Move` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Fen` is imported redundantly
[INFO] [stdout]  --> blunders-engine/tests/simple_tactics.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use blunders_engine::fen::Fen;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 8 | use blunders_engine::search::search;
[INFO] [stdout] 9 | use blunders_engine::*;
[INFO] [stdout]   |     ------------------ the item `Fen` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Move` is imported redundantly
[INFO] [stdout]  --> blunders-engine/benches/mates.rs:5:44
[INFO] [stdout]   |
[INFO] [stdout] 5 | use blunders_engine::coretypes::{Color::*, Move, Square::*};
[INFO] [stdout]   |                                            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 | use blunders_engine::*;
[INFO] [stdout]   |     ------------------ the item `Move` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Fen` is imported redundantly
[INFO] [stdout]  --> blunders-engine/benches/mates.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use blunders_engine::fen::Fen;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 | use blunders_engine::*;
[INFO] [stdout]   |     ------------------ the item `Fen` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `search` is imported redundantly
[INFO] [stdout]  --> blunders-engine/benches/mates.rs:7:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | use blunders_engine::search::{self, History};
[INFO] [stdout]   |                               ^^^^
[INFO] [stdout] 8 | use blunders_engine::timeman::Mode;
[INFO] [stdout] 9 | use blunders_engine::*;
[INFO] [stdout]   |     ------------------ the item `search` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Mode` is imported redundantly
[INFO] [stdout]  --> blunders-engine/benches/mates.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use blunders_engine::timeman::Mode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 9 | use blunders_engine::*;
[INFO] [stdout]   |     ------------------ the item `Mode` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Move` is imported redundantly
[INFO] [stdout]   --> blunders-engine/tests/bratko_kopec.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | use blunders_engine::coretypes::Move;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 | use blunders_engine::*;
[INFO] [stdout]    |     ------------------ the item `Move` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Fen` is imported redundantly
[INFO] [stdout]   --> blunders-engine/tests/bratko_kopec.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use blunders_engine::fen::Fen;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 9  | use blunders_engine::search::search;
[INFO] [stdout] 10 | use blunders_engine::*;
[INFO] [stdout]    |     ------------------ the item `Fen` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Move` is imported redundantly
[INFO] [stdout]  --> blunders-engine/tests/mates.rs:6:44
[INFO] [stdout]   |
[INFO] [stdout] 6 | use blunders_engine::coretypes::{Color::*, Move, PieceKind::*, Square::*};
[INFO] [stdout]   |                                            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 | use blunders_engine::*;
[INFO] [stdout]   |     ------------------ the item `Move` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Fen` is imported redundantly
[INFO] [stdout]  --> blunders-engine/tests/mates.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use blunders_engine::fen::Fen;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 8 | use blunders_engine::search::search;
[INFO] [stdout] 9 | use blunders_engine::*;
[INFO] [stdout]   |     ------------------ the item `Fen` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `num_cpus` is imported redundantly
[INFO] [stdout]  --> blunders-engine/tests/perft.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use num_cpus;
[INFO] [stdout]   |     ^^^^^^^^ the item `num_cpus` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Fen` is imported redundantly
[INFO] [stdout]   --> blunders-engine/tests/perft.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use blunders_engine::fen::Fen;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 9  | use blunders_engine::perft::*;
[INFO] [stdout] 10 | use blunders_engine::*;
[INFO] [stdout]    |     ------------------ the item `Fen` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `num_cpus` is imported redundantly
[INFO] [stdout]  --> blunders-engine/benches/perft.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num_cpus;
[INFO] [stdout]   |     ^^^^^^^^ the item `num_cpus` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Move` is imported redundantly
[INFO] [stdout]  --> blunders-engine/tests/draws.rs:6:44
[INFO] [stdout]   |
[INFO] [stdout] 6 | use blunders_engine::coretypes::{Color::*, Move, Square::*};
[INFO] [stdout]   |                                            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 | use blunders_engine::*;
[INFO] [stdout]   |     ------------------ the item `Move` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Fen` is imported redundantly
[INFO] [stdout]  --> blunders-engine/tests/draws.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use blunders_engine::fen::Fen;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 8 | use blunders_engine::movelist::MoveHistory;
[INFO] [stdout] 9 | use blunders_engine::*;
[INFO] [stdout]   |     ------------------ the item `Fen` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Move` is imported redundantly
[INFO] [stdout]    --> blunders-engine/src/moveorder.rs:119:28
[INFO] [stdout]     |
[INFO] [stdout] 118 |     use super::*;
[INFO] [stdout]     |         -------- the item `Move` is already imported here
[INFO] [stdout] 119 |     use crate::coretypes::{Move, PieceKind, Square::*};
[INFO] [stdout]     |                            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Move` is imported redundantly
[INFO] [stdout]    --> blunders-engine/src/search/negamax.rs:621:35
[INFO] [stdout]     |
[INFO] [stdout] 620 |     use super::*;
[INFO] [stdout]     |         -------- the item `Move` is already imported here
[INFO] [stdout] 621 |     use crate::coretypes::{Color, Move, Square::*};
[INFO] [stdout]     |                                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Position` is imported redundantly
[INFO] [stdout]    --> blunders-engine/src/zobrist.rs:305:9
[INFO] [stdout]     |
[INFO] [stdout] 302 |     use super::*;
[INFO] [stdout]     |         -------- the item `Position` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 305 |     use crate::Position;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `name` are never read
[INFO] [stdout]   --> blunders-engine/src/threads.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Thread {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 34 |     pub id: usize,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 35 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Thread` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `threads` is never read
[INFO] [stdout]   --> blunders-engine/src/threads.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct ThreadPool {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 95 |     num_threads: usize,
[INFO] [stdout] 96 |     threads: Vec<Thread>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ThreadPool` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.23s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "9c2c185e627b637aa92a8672af02a538e5171884f2a2efe8291ae7bf36f4f53c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c2c185e627b637aa92a8672af02a538e5171884f2a2efe8291ae7bf36f4f53c", kill_on_drop: false }`
[INFO] [stdout] 9c2c185e627b637aa92a8672af02a538e5171884f2a2efe8291ae7bf36f4f53c