[INFO] fetching crate littlewing 0.7.0...
[INFO] checking littlewing-0.7.0 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate littlewing 0.7.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate littlewing 0.7.0
[INFO] finished tweaking crates.io crate littlewing 0.7.0
[INFO] tweaked toml for crates.io crate littlewing 0.7.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate littlewing 0.7.0 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate littlewing 0.7.0 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf98c785168422c9a518fdca64d23b39e2f4f3882fb0a081fe0b190abc2dacae
[INFO] running `Command { std: "docker" "start" "-a" "bf98c785168422c9a518fdca64d23b39e2f4f3882fb0a081fe0b190abc2dacae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf98c785168422c9a518fdca64d23b39e2f4f3882fb0a081fe0b190abc2dacae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf98c785168422c9a518fdca64d23b39e2f4f3882fb0a081fe0b190abc2dacae", kill_on_drop: false }`
[INFO] [stdout] bf98c785168422c9a518fdca64d23b39e2f4f3882fb0a081fe0b190abc2dacae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcf13519b3dfc1f64e70cdebaa5d30723a82a9639da826dc63e51ccd06cd74c6
[INFO] running `Command { std: "docker" "start" "-a" "dcf13519b3dfc1f64e70cdebaa5d30723a82a9639da826dc63e51ccd06cd74c6", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking no-std-compat v0.4.1
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking dirs-sys-next v0.1.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking dirs-next v1.0.1
[INFO] [stderr]     Checking dirs v3.0.0
[INFO] [stderr]    Compiling rustyline-derive v0.3.1
[INFO] [stderr]     Checking rustyline v6.2.0
[INFO] [stderr]     Checking littlewing v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]    --> src/piece_move_list.rs:132:47
[INFO] [stdout]     |
[INFO] [stdout] 132 |             PieceMoveListStage::Done       => panic!("no next stage")
[INFO] [stdout]     |                                               ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]    --> src/piece_move_list.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use std::prelude::v1::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]     = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]    --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout]     = note: `#[warn(ambiguous_panic_imports)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]    --> src/piece_move_list.rs:172:47
[INFO] [stdout]     |
[INFO] [stdout] 172 |             PieceMoveListStage::Done       => panic!("last stage")
[INFO] [stdout]     |                                               ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]    --> src/piece_move_list.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use std::prelude::v1::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]     = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]    --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]    --> src/piece_move_list.rs:238:18
[INFO] [stdout]     |
[INFO] [stdout] 238 |             _ => panic!("wrong generation stage")
[INFO] [stdout]     |                  ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]    --> src/piece_move_list.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use std::prelude::v1::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]     = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]    --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]    --> src/piece_move_list.rs:252:51
[INFO] [stdout]     |
[INFO] [stdout] 252 |             _                                  => panic!("wrong generation stage")
[INFO] [stdout]     |                                                   ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]    --> src/piece_move_list.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use std::prelude::v1::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]     = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]    --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]    --> src/piece_move_list.rs:267:51
[INFO] [stdout]     |
[INFO] [stdout] 267 |             _                                  => panic!("wrong generation stage")
[INFO] [stdout]     |                                                   ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]    --> src/piece_move_list.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use std::prelude::v1::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]     = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]    --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]    --> src/piece_move_list.rs:283:51
[INFO] [stdout]     |
[INFO] [stdout] 283 |             _                                  => panic!("wrong generation stage")
[INFO] [stdout]     |                                                   ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]    --> src/piece_move_list.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use std::prelude::v1::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]     = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]    --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]    --> src/piece_move_list.rs:299:51
[INFO] [stdout]     |
[INFO] [stdout] 299 |             _                                  => panic!("wrong generation stage")
[INFO] [stdout]     |                                                   ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]    --> src/piece_move_list.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use std::prelude::v1::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]     = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]    --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]    --> src/piece_move_list.rs:314:51
[INFO] [stdout]     |
[INFO] [stdout] 314 |             _                                  => panic!("wrong generation stage")
[INFO] [stdout]     |                                                   ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]    --> src/piece_move_list.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use std::prelude::v1::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]     = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]    --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]    --> src/piece_move_list.rs:329:51
[INFO] [stdout]     |
[INFO] [stdout] 329 |             _                                  => panic!("wrong generation stage")
[INFO] [stdout]     |                                                   ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]    --> src/piece_move_list.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use std::prelude::v1::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]     = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]    --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]   --> src/piece_move_notation.rs:76:30
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 _         => panic!("could not parse promotion")
[INFO] [stdout]    |                              ^^^^^ ambiguous name
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]    = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]   --> src/piece_move_notation.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout]  1 | use std::prelude::v1::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]    = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]   --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]    --> src/protocols/xboard.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |             panic!("no fen given");
[INFO] [stdout]     |             ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]    --> src/protocols/xboard.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use std::prelude::v1::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]     = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]    --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `std`
[INFO] [stdout]   --> src/search.rs:91:25
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let n = if cfg!(std) { self.threads_count } else { 0 };
[INFO] [stdout]    |                         ^^^ help: found config with similar value: `feature = "std"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(std)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(std)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]    --> src/piece_move_list.rs:132:47
[INFO] [stdout]     |
[INFO] [stdout] 132 |             PieceMoveListStage::Done       => panic!("no next stage")
[INFO] [stdout]     |                                               ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]    --> src/piece_move_list.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use std::prelude::v1::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]     = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]    --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout]     = note: `#[warn(ambiguous_panic_imports)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]    --> src/piece_move_list.rs:172:47
[INFO] [stdout]     |
[INFO] [stdout] 172 |             PieceMoveListStage::Done       => panic!("last stage")
[INFO] [stdout]     |                                               ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]    --> src/piece_move_list.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use std::prelude::v1::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]     = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]    --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]    --> src/piece_move_list.rs:238:18
[INFO] [stdout]     |
[INFO] [stdout] 238 |             _ => panic!("wrong generation stage")
[INFO] [stdout]     |                  ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]    --> src/piece_move_list.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use std::prelude::v1::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]     = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]    --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]    --> src/piece_move_list.rs:252:51
[INFO] [stdout]     |
[INFO] [stdout] 252 |             _                                  => panic!("wrong generation stage")
[INFO] [stdout]     |                                                   ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]    --> src/piece_move_list.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use std::prelude::v1::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]     = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]    --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]    --> src/piece_move_list.rs:267:51
[INFO] [stdout]     |
[INFO] [stdout] 267 |             _                                  => panic!("wrong generation stage")
[INFO] [stdout]     |                                                   ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]    --> src/piece_move_list.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use std::prelude::v1::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]     = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]    --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]    --> src/piece_move_list.rs:283:51
[INFO] [stdout]     |
[INFO] [stdout] 283 |             _                                  => panic!("wrong generation stage")
[INFO] [stdout]     |                                                   ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]    --> src/piece_move_list.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use std::prelude::v1::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]     = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]    --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]    --> src/piece_move_list.rs:299:51
[INFO] [stdout]     |
[INFO] [stdout] 299 |             _                                  => panic!("wrong generation stage")
[INFO] [stdout]     |                                                   ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]    --> src/piece_move_list.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use std::prelude::v1::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]     = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]    --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]    --> src/piece_move_list.rs:314:51
[INFO] [stdout]     |
[INFO] [stdout] 314 |             _                                  => panic!("wrong generation stage")
[INFO] [stdout]     |                                                   ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]    --> src/piece_move_list.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use std::prelude::v1::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]     = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]    --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]    --> src/piece_move_list.rs:329:51
[INFO] [stdout]     |
[INFO] [stdout] 329 |             _                                  => panic!("wrong generation stage")
[INFO] [stdout]     |                                                   ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]    --> src/piece_move_list.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use std::prelude::v1::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]     = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]    --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]   --> src/piece_move_notation.rs:76:30
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 _         => panic!("could not parse promotion")
[INFO] [stdout]    |                              ^^^^^ ambiguous name
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]    = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]   --> src/piece_move_notation.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout]  1 | use std::prelude::v1::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]    = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]   --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `panic` is ambiguous
[INFO] [stdout]    --> src/protocols/xboard.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |             panic!("no fen given");
[INFO] [stdout]     |             ^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #147319 <https://github.com/rust-lang/rust/issues/147319>
[INFO] [stdout]     = note: ambiguous because of a conflict between a name from a glob import and an outer scope during import or macro resolution
[INFO] [stdout] note: `panic` could refer to the macro imported here
[INFO] [stdout]    --> src/protocols/xboard.rs:1:5
[INFO] [stdout]     |
[INFO] [stdout]   1 | use std::prelude::v1::*;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `panic` to disambiguate
[INFO] [stdout]     = help: or use `self::panic` to refer to this macro unambiguously
[INFO] [stdout] note: `panic` could also refer to a macro from prelude
[INFO] [stdout]    --> /rustc/b1f2594eac607c1f051534800237eeedb5590a49/library/core/src/prelude/mod.rs:21:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `std`
[INFO] [stdout]   --> src/search.rs:91:25
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let n = if cfg!(std) { self.threads_count } else { 0 };
[INFO] [stdout]    |                         ^^^ help: found config with similar value: `feature = "std"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(std)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(std)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.08s
[INFO] running `Command { std: "docker" "inspect" "dcf13519b3dfc1f64e70cdebaa5d30723a82a9639da826dc63e51ccd06cd74c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcf13519b3dfc1f64e70cdebaa5d30723a82a9639da826dc63e51ccd06cd74c6", kill_on_drop: false }`
[INFO] [stdout] dcf13519b3dfc1f64e70cdebaa5d30723a82a9639da826dc63e51ccd06cd74c6
