[INFO] cloning repository https://github.com/paul-schaaf/legal_chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/paul-schaaf/legal_chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaul-schaaf%2Flegal_chess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaul-schaaf%2Flegal_chess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 31d4ecd85522cfec2a89a3bb3837ba22506ff0cc
[INFO] checking paul-schaaf/legal_chess against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaul-schaaf%2Flegal_chess" "/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/paul-schaaf/legal_chess on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/paul-schaaf/legal_chess
[INFO] finished tweaking git repo https://github.com/paul-schaaf/legal_chess
[INFO] tweaked toml for git repo https://github.com/paul-schaaf/legal_chess written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/paul-schaaf/legal_chess 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb14da2aa5f9fabc0142be00d27e7eefdb7d13ea5d54cf87cbea85c883029371
[INFO] running `Command { std: "docker" "start" "-a" "cb14da2aa5f9fabc0142be00d27e7eefdb7d13ea5d54cf87cbea85c883029371", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb14da2aa5f9fabc0142be00d27e7eefdb7d13ea5d54cf87cbea85c883029371", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb14da2aa5f9fabc0142be00d27e7eefdb7d13ea5d54cf87cbea85c883029371", kill_on_drop: false }`
[INFO] [stdout] cb14da2aa5f9fabc0142be00d27e7eefdb7d13ea5d54cf87cbea85c883029371
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89e1e4f85330a474a054efef45360d0044e6f3cde1c30a44caf5746c677b40cf
[INFO] running `Command { std: "docker" "start" "-a" "89e1e4f85330a474a054efef45360d0044e6f3cde1c30a44caf5746c677b40cf", kill_on_drop: false }`
[INFO] [stderr]     Checking legal_chess v0.4.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `piece` is imported redundantly
[INFO] [stdout]   --> src/attack.rs:42:38
[INFO] [stdout]    |
[INFO] [stdout] 42 |     use super::super::pieces::{pawn, piece, position};
[INFO] [stdout]    |                                      ^^^^^
[INFO] [stdout] 43 |     use super::*;
[INFO] [stdout]    |         -------- the item `piece` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `position` is imported redundantly
[INFO] [stdout]   --> src/attack.rs:42:45
[INFO] [stdout]    |
[INFO] [stdout] 42 |     use super::super::pieces::{pawn, piece, position};
[INFO] [stdout]    |                                             ^^^^^^^^
[INFO] [stdout] 43 |     use super::*;
[INFO] [stdout]    |         -------- the item `position` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Piece` is imported redundantly
[INFO] [stdout]    --> src/pieces/king.rs:163:9
[INFO] [stdout]     |
[INFO] [stdout] 163 |     use super::piece::Piece;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 164 |     use super::*;
[INFO] [stdout]     |         -------- the item `Piece` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Piece` is imported redundantly
[INFO] [stdout]    --> src/pieces/pawn.rs:200:44
[INFO] [stdout]     |
[INFO] [stdout] 200 |     use super::super::{bishop, king, pawn, piece::Piece, queen, rook};
[INFO] [stdout]     |                                            ^^^^^^^^^^^^
[INFO] [stdout] 201 |     use super::*;
[INFO] [stdout]     |         -------- the item `Piece` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bishop` is imported redundantly
[INFO] [stdout]    --> src/pieces/piece.rs:183:24
[INFO] [stdout]     |
[INFO] [stdout] 183 |     use super::super::{bishop, king, knight, pawn, queen};
[INFO] [stdout]     |                        ^^^^^^
[INFO] [stdout] 184 |     use super::*;
[INFO] [stdout]     |         -------- the item `bishop` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `king` is imported redundantly
[INFO] [stdout]    --> src/pieces/piece.rs:183:32
[INFO] [stdout]     |
[INFO] [stdout] 183 |     use super::super::{bishop, king, knight, pawn, queen};
[INFO] [stdout]     |                                ^^^^
[INFO] [stdout] 184 |     use super::*;
[INFO] [stdout]     |         -------- the item `king` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `knight` is imported redundantly
[INFO] [stdout]    --> src/pieces/piece.rs:183:38
[INFO] [stdout]     |
[INFO] [stdout] 183 |     use super::super::{bishop, king, knight, pawn, queen};
[INFO] [stdout]     |                                      ^^^^^^
[INFO] [stdout] 184 |     use super::*;
[INFO] [stdout]     |         -------- the item `knight` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `pawn` is imported redundantly
[INFO] [stdout]    --> src/pieces/piece.rs:183:46
[INFO] [stdout]     |
[INFO] [stdout] 183 |     use super::super::{bishop, king, knight, pawn, queen};
[INFO] [stdout]     |                                              ^^^^
[INFO] [stdout] 184 |     use super::*;
[INFO] [stdout]     |         -------- the item `pawn` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `queen` is imported redundantly
[INFO] [stdout]    --> src/pieces/piece.rs:183:52
[INFO] [stdout]     |
[INFO] [stdout] 183 |     use super::super::{bishop, king, knight, pawn, queen};
[INFO] [stdout]     |                                                    ^^^^^
[INFO] [stdout] 184 |     use super::*;
[INFO] [stdout]     |         -------- the item `queen` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "89e1e4f85330a474a054efef45360d0044e6f3cde1c30a44caf5746c677b40cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89e1e4f85330a474a054efef45360d0044e6f3cde1c30a44caf5746c677b40cf", kill_on_drop: false }`
[INFO] [stdout] 89e1e4f85330a474a054efef45360d0044e6f3cde1c30a44caf5746c677b40cf
[INFO] checking paul-schaaf/legal_chess against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaul-schaaf%2Flegal_chess" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paul-schaaf/legal_chess on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/paul-schaaf/legal_chess
[INFO] finished tweaking git repo https://github.com/paul-schaaf/legal_chess
[INFO] tweaked toml for git repo https://github.com/paul-schaaf/legal_chess written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/paul-schaaf/legal_chess 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bbc683be934c80e83c0ec032f2921c540da0ebf583fcd6a435049342c481a9f
[INFO] running `Command { std: "docker" "start" "-a" "3bbc683be934c80e83c0ec032f2921c540da0ebf583fcd6a435049342c481a9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bbc683be934c80e83c0ec032f2921c540da0ebf583fcd6a435049342c481a9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bbc683be934c80e83c0ec032f2921c540da0ebf583fcd6a435049342c481a9f", kill_on_drop: false }`
[INFO] [stdout] 3bbc683be934c80e83c0ec032f2921c540da0ebf583fcd6a435049342c481a9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01e6f49dfe69dddf5ff64141f6c3cb979cffa3f6f0700d4c56c6de5f51bf629a
[INFO] running `Command { std: "docker" "start" "-a" "01e6f49dfe69dddf5ff64141f6c3cb979cffa3f6f0700d4c56c6de5f51bf629a", kill_on_drop: false }`
[INFO] [stderr]     Checking legal_chess v0.4.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `piece` is imported redundantly
[INFO] [stdout]   --> src/attack.rs:42:38
[INFO] [stdout]    |
[INFO] [stdout] 42 |     use super::super::pieces::{pawn, piece, position};
[INFO] [stdout]    |                                      ^^^^^
[INFO] [stdout] 43 |     use super::*;
[INFO] [stdout]    |         -------- the item `piece` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `position` is imported redundantly
[INFO] [stdout]   --> src/attack.rs:42:45
[INFO] [stdout]    |
[INFO] [stdout] 42 |     use super::super::pieces::{pawn, piece, position};
[INFO] [stdout]    |                                             ^^^^^^^^
[INFO] [stdout] 43 |     use super::*;
[INFO] [stdout]    |         -------- the item `position` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Piece` is imported redundantly
[INFO] [stdout]    --> src/pieces/king.rs:163:9
[INFO] [stdout]     |
[INFO] [stdout] 163 |     use super::piece::Piece;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 164 |     use super::*;
[INFO] [stdout]     |         -------- the item `Piece` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Piece` is imported redundantly
[INFO] [stdout]    --> src/pieces/pawn.rs:200:44
[INFO] [stdout]     |
[INFO] [stdout] 200 |     use super::super::{bishop, king, pawn, piece::Piece, queen, rook};
[INFO] [stdout]     |                                            ^^^^^^^^^^^^
[INFO] [stdout] 201 |     use super::*;
[INFO] [stdout]     |         -------- the item `Piece` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bishop` is imported redundantly
[INFO] [stdout]    --> src/pieces/piece.rs:183:24
[INFO] [stdout]     |
[INFO] [stdout] 183 |     use super::super::{bishop, king, knight, pawn, queen};
[INFO] [stdout]     |                        ^^^^^^
[INFO] [stdout] 184 |     use super::*;
[INFO] [stdout]     |         -------- the item `bishop` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `king` is imported redundantly
[INFO] [stdout]    --> src/pieces/piece.rs:183:32
[INFO] [stdout]     |
[INFO] [stdout] 183 |     use super::super::{bishop, king, knight, pawn, queen};
[INFO] [stdout]     |                                ^^^^
[INFO] [stdout] 184 |     use super::*;
[INFO] [stdout]     |         -------- the item `king` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `knight` is imported redundantly
[INFO] [stdout]    --> src/pieces/piece.rs:183:38
[INFO] [stdout]     |
[INFO] [stdout] 183 |     use super::super::{bishop, king, knight, pawn, queen};
[INFO] [stdout]     |                                      ^^^^^^
[INFO] [stdout] 184 |     use super::*;
[INFO] [stdout]     |         -------- the item `knight` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `pawn` is imported redundantly
[INFO] [stdout]    --> src/pieces/piece.rs:183:46
[INFO] [stdout]     |
[INFO] [stdout] 183 |     use super::super::{bishop, king, knight, pawn, queen};
[INFO] [stdout]     |                                              ^^^^
[INFO] [stdout] 184 |     use super::*;
[INFO] [stdout]     |         -------- the item `pawn` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `queen` is imported redundantly
[INFO] [stdout]    --> src/pieces/piece.rs:183:52
[INFO] [stdout]     |
[INFO] [stdout] 183 |     use super::super::{bishop, king, knight, pawn, queen};
[INFO] [stdout]     |                                                    ^^^^^
[INFO] [stdout] 184 |     use super::*;
[INFO] [stdout]     |         -------- the item `queen` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]     --> src/game.rs:1398:13
[INFO] [stdout]      |
[INFO] [stdout] 1398 |             panic!();
[INFO] [stdout]      |             ^^^^^^^^ cannot infer type
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `legal_chess` (lib test) due to 2 previous errors; 9 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "01e6f49dfe69dddf5ff64141f6c3cb979cffa3f6f0700d4c56c6de5f51bf629a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01e6f49dfe69dddf5ff64141f6c3cb979cffa3f6f0700d4c56c6de5f51bf629a", kill_on_drop: false }`
[INFO] [stdout] 01e6f49dfe69dddf5ff64141f6c3cb979cffa3f6f0700d4c56c6de5f51bf629a